conservation and incidental take...
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VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-1
SECTION 9.0
CONSERVATION AND INCIDENTAL TAKE ESTIMATES
A Habitat Conservation Plan (HCP) is required to disclose impacts likely to result from the proposed
Taking of species for which coverage is requested, and the HCP must also incorporate measures to
minimize and mitigate the impacts of such Takings. This section presents overall impact and Take
estimates associated with implementation of the MSHCP Plan. This section also summarizes
measures incorporated in the MSHCP to minimize and mitigate the identified impacts, including
conservation estimates. These measures are described in greater detail throughout the MSHCP Plan.
For example, Section 3.0 of this document describes the MSHCP Conservation Area that will be
assembled to offset the impacts of the proposed Taking. Section 5.0 of this document describes
proposed management and monitoring efforts within the MSHCP Conservation Area. Section 6.0
discusses implementation measures incorporated in the Plan to minimize impacts and Section 7.0
incorporates measures to minimize impacts associated with specific Covered Activities. Taken
together, these measures represent minimization of identified impacts to the maximum extent
practicable as summarized at the end of this section (Section 9.3).
9.1 OVERALL CONSERVATION AND IMPACT ESTIMATES OF
VEGETATION COMMUNITIES
This Section provides the overall conservation and impact estimates for Vegetation Communities
with implementation of the MSHCP. Table 9-1 summarizes anticipated Conservation and loss of the
Vegetation Communities within the Plan Area. In general, the MSHCP tends to protect more
sensitive upland, wetland and forest Vegetation Communities that support a larger number of
sensitive species in the Plan Area.
Vegetation Communities may be considered within four broad categories: sensitive upland, wetland,
forest and Agriculture. Sensitive upland communities include chaparral, coastal sage scrub, desert
scrub, grassland and Riversidean alluvial fan sage scrub. Wetland communities include meadows
and marshes, playas and vernal pools, riparian scrub/woodland/forest, cismontane alkali marsh and
water. Forest communities include montane coniferous forest, and woodlands and forests. As
shown in Table 9-1, implementation of the MSHCP generally would result in the greatest amount
of protection for sensitive upland, wetland and forest communities because these Vegetation
Communities generally tend to support a broader assemblage of sensitive species.
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TABLE 9-1
OVERALL VEGETATION COMMUNITY
CONSERVATION AND IMPACT ESTIMATES
Vegetation Community
Total Acres
in Plan Area*
Total Acres
Conserved
Percent of Total
Vegetation
Community Acres
Conserved in
Plan Area
Total Acres
Potentially
Affected*
Percent of Total
Vegetation
Community
Acres
Potentially
Affected in Plan
Area
Agriculture 169,480 20,020 12% 149,460 88%
Chaparral 434,950 272,280 63% 162,670 37%
Cismontane Alkali Marsh 1,260 40 3% 1,220 97%
Coastal Sage Scrub 156,450 81,720 52% 74,730 48%
Desert Scrubs 14,570 4,990 34% 9,580 66%
Grassland 154,140 42,820 28% 111,320 72%
Meadows and Marshes 1,020 510 50% 510 50%
Montane Coniferous Forest 29,910 20,500 69% 9,410 31%
Playas and Vernal Pools 7,910 6,750 85% 1,160 15%
Riparian Scrub, Woodland, Forest 15,030 11,190 74% 3,840 26%
Riversidean Alluvial Fan Sage Scrub 7,940 5,230 66% 2,710 34%
Unknown 1,350 1,240 92% 110 8%
Water 12,210 10,340 85% 1,870 15%
Woodlands and Forests 34,300 23,500 69% 10,800 31%
Developed or Disturbed Land 218,260 4,780 2% 213,480 98%
T O T A L S 1,258,780 505,910 752,870
* This includes the following acreages of each Vegetation Community on American Indian Lands that, while within the Plan Area, are not a part
of the Plan:
Agriculture: 1,110 Unknown: 10
Chaparral: 20,290 Water: 10
Cismontane Alkali Marsh: 1,110 Woodlands and Forests: 1,050
Coastal Sage Scrub: 3,760 Developed or Disturbed Land: 510
Desert Scrubs: 5,190
Grasslands: 7,260
Meadows and Marshes: 50
Montane Coniferous Forest: 10
Riparian Scrub, Woodland, Forest: 420
Riversidean Alluvial Fan Sage Scrub: 790
Anticipated impacts to coastal sage scrub, desert scrub, grassland, cismontane alkali marsh, and
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meadows and marshes under the MSHCP Plan would result in a substantial reduction of sensitive
Vegetation Communities within the Plan Area. Impacts to these Vegetation Communities would
also have substantial adverse effects on listed, sensitive, or special status species that occupy and
utilize these Vegetation Communities. For example, a substantial reduction of coastal sage scrub
Habitat would adversely affect listed and other sensitive species, such as the coastal California
gnatcatcher, through habitat modification. Inclusion of a large percentage of chaparral within the
MSHCP Conservation Area would reduce identified impacts to this community given the extensive
acreage and wide distribution of this Vegetation Community in the Plan Area and the relatively low
number of listed species preferring this Vegetation Community within the Plan Area. A majority of
the playas and vernal pools and riparian scrub/woodland/forest wetland communities would be
conserved. In general, inclusion of the majority of the forest communities as Conserved Habitat
within the MSHCP Conservation Area would minimize identified impacts to these communities.
Although not a sensitive Vegetation Community, impacts to agricultural land would cause a
substantial reduction of this community and would also adversely affect sensitive species that occupy
or utilize agricultural lands including raptors and burrowing mammals.
Anticipated impacts to Vegetation Communities may be contrasted with the anticipated Conservation
shown in Table 9-1. As described in this Plan, Conservation would occur within an appropriately
designed, managed and funded MSHCP Conservation Area consistent with overall and species-
specific conservation objectives.
9.2 COVERED SPECIES
This section provides the overall conservation and impact estimates for Covered Species under the
MSHCP Plan. In addition to describing the Conservation Strategy developed for each of the Covered
Species, maps and definitions are provided or referenced to facilitate review of the species
Conservation and impact summary contained in this section. Comprehensive analyses of the
Covered Species are located in the Species Accounts in Section B of the MSHCP Reference
Document, Volume II.
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' Conservation Strategy
The MSHCP will implement a Conservation Strategy for each of the Covered Species. The
Conservation Strategy for each species consists of four components: (1) a global biological goal, (2)
global biological objectives, (3) species-specific biological objectives, and (4) management and
monitoring activities (as referenced in global biological objective #11).
(1) Global Biological Goal
The following global biological goal applies to the Conservation of each of the MSHCP Covered
Species:
In the MSHCP Plan Area, Conserve Covered Species and their Habitats.
(2) Global Biological Objectives
The following global biological objectives shall be implemented for the benefit of the MSHCP
Covered Species in order to achieve the global biological goal:
1. The MSHCP Conservation Area shall be approximately 500,000 acres in size and shall be
comprised of approximately 347,000 acres of Public/Quasi-Public Lands and approximately
153,000 acres of Additional Reserve Lands. The MSHCP Conservation Area shall
incorporate the Cores and Linkages as well as habitat distributions generally as presented in
the MSHCP Conservation Area Description in Section A of the MSHCP Reference
Document, Volume II.
2. Upland habitat quality within the MSHCP Conservation Area shall be maintained and
managed generally in similar or better condition as at the time lands are conveyed to the
MSHCP Conservation Area.
3. Wetland habitat quality within the MSHCP Conservation Area shall be maintained and
managed generally in similar or better condition as at the time lands are conveyed to the
MSHCP Conservation Area.
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4. Best Management Practices (BMPs) shall be implemented in accordance with the guidelines
presented in Appendix C of this document. For Flood Control projects, the existing NPDES
general permit for storm water discharges associated with construction activities (Water
Quality Order 99-08-DWQ) and Section 1601 Streambed Alteration Agreement for flood
control facilities maintenance shall be implemented.
5. New land uses adjacent to the MSHCP Conservation Area shall implement the Guidelines
Pertaining to the Urban/Wildlands Interface presented in Section 6.1.4 of this document.
6. The Maintenance of Existing Habitat Conditions Prior to Reserve Assembly policies
presented in Section 6.1.5 of this document shall be implemented to ensure that habitat
quality within the Criteria Area generally remains in its existing condition prior to
conveyance of lands to the MSHCP Conservation Area.
7. The Protection of Species Associated with Riparian/Riverine Areas and Vernal Pools
policies presented in Section 6.1.2 of this document shall be implemented for the benefit of
the following species. Other species survey requirements associated with the MSHCP are
documented in Section 6.1.3 and 6.3.2 of this document. A complete summary of all
MSHCP species survey requirements is provided in Appendix E to this document.
Amphibians: arroyo toad
California red-legged frog
coast range newt
mountain yellow-legged frog
western spadefoot
Birds: American bittern
bald eagle
black-crowned night-heron
black swift
Cooper’s hawk
double-crested cormorant
downy woodpecker
least Bell’s vireo
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Lincoln’s sparrow
MacGillivray's warbler
Nashville warbler
osprey
peregrine falcon
purple martin
southwestern willow flycatcher
tree swallow
tricolored blackbird
western yellow-billed cuckoo
white-faced ibis
white-tailed kite
Wilson's warbler
yellow-breasted chat
yellow warbler
Fish: arroyo chub
Santa Ana sucker
Invertebrates: Riverside fairy shrimp
Santa Rosa Plateau fairy shrimp
vernal pool fairy shrimp
Plants: Brand’s phacelia
California black walnut
California muhly
California Orcutt grass
Coulter's goldfields
Coulter's matilija poppy
Davidson’s saltscale
Engelmann oak
Fish’s milkwort
graceful tarplant
lemon lily
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little mousetail
Mojave tarplant
mud nama
ocellated Humboldt lily
Orcutt’s brodiaea
Parish’s brittlescale
Parish's meadowfoam
prostrate navarretia
San Diego button-celery
San Jacinto Valley crownscale
San Miguel savory
Santa Ana River woolly-star
slender-horned spine flower
smooth tarplant
spreading navarretia
thread-leaved brodiaea
vernal barley
Wright's trichocoronis
Reptiles: western pond turtle
8. The Protection of Narrow Endemic Plant Species policies presented in Section 6.1.3 of this
document shall be implemented for the benefit of the following species. Other species
survey requirements associated with the MSHCP are documented in Section 6.1.3 and 6.3.2.
of this document A complete summary of all MSHCP species survey requirements is
provided in Appendix E to this document.
Brand’s phacelia
California Orcutt grass
Hammitt’s clay-cress
Johnston’s rock-cress
many-stemmed dudleya
Munz’s mariposa lily
Munz’s onion
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San Diego ambrosia
San Jacinto Mountains bedstraw
San Miguel savory (Santa Rosa Plateau, Steele Rock)
slender-horned spine flower
spreading navarretia
Wright’s trichocoronis
Yucaipa onion
9. The Additional Survey Needs and Procedures policies presented in Section 6.3.2 of this
document shall be implemented for the benefit of the following species. Other species
survey requirements associated with the MSHCP are documented in Section 6.1.3 and 6.3.2.
of this document A complete summary of all MSHCP species survey requirements is
provided in Appendix E to this document.
Amphibians: arroyo toad
California red-legged frog
mountain yellow-legged frog
Birds: burrowing owl
Mammals: Aguanga kangaroo rat
Los Angeles pocket mouse
San Bernardino kangaroo rat
Plants: Coulter’s goldfields
Davidson’s saltscale
heart-leaved pitcher sage
little mousetail
mud nama
Nevin’s barberry
Parish’s brittlescale
prostrate navarretia
round-leaved filaree
San Jacinto Valley crownscale
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smooth tarplant
thread-leaved brodiaea
Vail Lake ceanothus
10. Covered Activities within the Criteria Area and Allowable Uses within the MSHCP
Conservation Area shall be implemented in accordance with the siting, construction, design,
operations and maintenance guidelines included in Section 7.0 of this document.
11. Monitoring and management activities shall be undertaken for each of the MSHCP Covered
Species. Monitoring and management activities are described in Sections 5.2 and 5.3 of this
document.
(3) Species-Specific Biological Objectives
Species-specific biological objectives have been established for each of the Covered Species in the
MSHCP. Species-specific objectives are presented in each of the individual species accounts
contained in Section B of the MSHCP Reference Document, Volume II and in Table 9-2 presented
later in this section. The quantitative information presented in these accounts sets the overall
parameters for species Conservation and Reserve Assembly, but should not be regarded as absolute.
Some variation in the quantifications is anticipated as the Additional Reserve Lands are assembled
to provide for flexibility in Reserve Assembly and to enable responses to changing conditions on the
ground during the long-term Reserve Assembly process. Additionally, the species conservation
levels are preliminary and may be modified based on future data collection efforts and as jointly
agreed upon by the affected Permittees and the Wildlife Agencies.
In the individual species accounts, each species has been assigned a group designation - Group 1,
Group 2 or Group 3. These species groupings, which are based on the group definitions incorporated
in the Natural Communities Conservation Planning Act, have been assigned to assist development
of individual species objectives as well as monitoring and management requirements for the
MSHCP. The three group definitions are as follows:
Group 1 -- Take coverage is warranted based upon regional or landscape level considerations,
such as healthy population levels, widespread distribution throughout the MSHCP Plan Area,
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and life history characteristics that respond to habitat-scale conservation and management
actions.
Group 2 -- Take coverage is warranted based on regional or landscape level considerations with
the addition of site-specific conservation and management requirements that are clearly
identified in the MSHCP for species that are generally well-distributed, but that have Core
Areas that require Conservation.
Group 3 -- Take coverage is warranted based upon site specific considerations and the
identification of specific conservation and management conditions for species within a
narrowly defined Habitat or limited geographic area within the MSHCP Plan Area.
(4) Monitoring and Management Activities
Monitoring and management activities have been identified for each of the Covered Species as
presented in Sections 5.2 and 5.3 of this document.
' Species Accounts Maps
Maps have been prepared to accompany the species Conservation and Take summary presented in
this section. These maps contain the following information:
Figures 9-1, 9-2, and 9-3 -- Place Name Maps -These maps show the locations of place names
referenced in the individual species accounts. Three place names maps are provided: Geographic
Place Names, Geologic Features, and Rivers, Creeks and Water Bodies.
Figures 9-4, 9-5, 9-6, 9-7 and 9-8 -- Criteria Area Maps - The MSHCP Criteria Area generally
depicts the area from which Additional Reserve Lands will be assembled. The following maps have
been prepared to depict the relationship of the Criteria Area to various analysis factors referenced
in the species accounts (the data sources for the analysis factors shown on the maps are summarized
in Sections 2.1.1, 2.1.2 and 2.1.3):
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! Criteria Area with Bioregions
! Criteria Area with coastal sage scrub habitat quality
! Criteria Area with mapped wetland resources
! Criteria Area with sensitive soils
! Criteria Area with elevations
In addition to the figures noted above, two other maps will facilitate review of the species
Conservation and Take summary presented in this section. Numbered and lettered Cores and
Linkages, shown in Figure 3-2 (the Core and Linkage Map) and referenced in the individual species
accounts, depict existing and proposed Cores and Linkages within the MSHCP Conservation Area.
Numbered Area Plan Subunits, which are referenced in the individual species accounts when
defining units of measurement for some individual species objectives, are depicted in Figure 3-3 (the
Area Plan Subunits Map) and defined more specifically in Section 3.3 of this document.
' Definitions
Where specific or unique definitions have been developed for use in the MSHCP and may be
referenced in the species accounts, those definitions are provided following the Table of Contents
in this document. For other biological terms, refer to the following suggested references:
Lincoln, R.G. Boxshall, and P. Clark. 1998. A Dictionary of Ecology, Evolution and Systematics,
Second Edition, Cambridge University Press, 361. Pp.
Steen, E.G. 1971. Dictionary of Biology. Barnes & Noble Books, San Francisco, 640 pp.
' Species Conservation and Take Summary
Anticipated Conservation and Take of Covered Species are summarized in Table 9-2 and presented
in detail in Section B of the MSHCP Reference Document, Volume II. Table 9-2 includes the 146
species anticipated to be covered under the MSHCP Plan and is separated into nine columns: Species
Name (common/scientific), Group Designation, Rationale for Group Designation, Species
Objectives, Conservation Analysis Summary, Incidental Take, Survey Requirements, Monitoring,
and Management Activities Summary. In addition to providing the group designation, the rationale
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for the group designation is also provided for each of the Covered Species. The Species Objectives
and Conservation Analysis Summary columns explain the measures that will be taken to conserve
the Covered Species with implementation of the MSHCP Plan. The Incidental Take column
summarizes the anticipated Take of Covered Species with implementation of the Plan. The Survey
Requirements column identifies whether a survey must be conducted for a particular species and
references the section of the MSHCP Plan where survey requirements are more specifically defined.
The Monitoring column incorporates information from Table 5-8 in Section 5.3 of this document
including monitoring frequency for assessment of species distribution and reproduction. Finally, the
Management Activities column summarizes specific management activities that will be performed
for each species. The General Management measures referenced in this column are presented in
Section 5.2 of this document.
As described in Section 2.1.4, of the 146 Covered Species addressed in the MSHCP, 118 species are
considered to be adequately conserved. The remaining 28 Covered Species will be considered to be
adequately conserved when certain conservation requirements are met as identified in the species-
specific conservation objectives for those species. For 16 of the 28 species, particular species-
specific conservation objectives, which are identified in Table 9-3, must be satisfied to shift those
particular species to the list of Covered Species Adequately Conserved. For the remaining 12
species, a Memorandum of Understanding must be executed with the Forest Service that addresses
management for these species on Forest Service Land in order to shift these species to the list of
Covered Species Adequately Conserved. More complete information regarding these 28 species is
also included in Table 9-2, which summarizes anticipated Conservation and Take of the 146 Covered
Species as described above.
TABLE 9-3. REQUIREMENTS TO BE MET FOR 28 SPECIES
PRIOR TO INCLUDING THOSE SPECIES ON THE
LIST OF COVERED SPECIES ADEQUATELY CONSERVED 1
COMMON NAME/
SCIENTIFIC NAME REQUIREMENT
REPTILES
San Bernardino mountain kingsnake
Lampropeltis zonata parvirubra
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this
species on Forest Service Land.
San Diego mountain kingsnake
Lampropeltis zonata pulchra
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this
species on Forest Service Land.
TABLE 9-3 (Continued)
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COMMON NAME/
SCIENTIFIC NAME REQUIREMENT
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southern rubber boa
Charina bottae umbratica
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this
species on Forest Service Land.
southern sagebrush lizard
Sceloporus graciosus vandenburgianus
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this
species on Forest Service Land.
BIRDS
California spotted owl
Strix occidentalis occidentalis
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this species
on Forest Service Land.
grasshopper sparrow
Ammodramus savannarum
Species Specific Conservation Objective: Within the MSHCP Conservation Area, maintain occupancy
within 3 large Core Areas (100 percent) and at least 3 of the 4 smaller Core Areas (75 percent) in at
least 1 year out of any 5 consecutive year period. In order for this species to become a Covered
Species Adequately Conserved, the following conservation must be demonstrated: Include within the
MSHCP Conservation Area at least 8,000 acres in 7 Core Areas. Core areas may include the following:
1) Prado Basin, 2) Lake Skinner/Diamond Valley Lake/Johnson Ranch area, 3) Lake Mathews-Estelle
Mountain, 4) Badlands, 5) Box Springs, 6) Santa Rosa Plateau/Tenaja, 7) Kabian Park, 8) Steele Peak,
9) Sycamore Canyon, 10) Potrero, and 11) Mystic Lake/San Jacinto Wildlife Area. Three of the 7 Core
Areas will be large, consisting of a minimum of 2,000 acres of grassland habitat or
grassland-dominated habitat (<20 percent shrub cover). The other 4 Core Areas may be smaller but
will consist of at least 500 acres of contiguous grassland habitat or grassland-dominated habitat
(<20 percent shrub cover). Five of the 7 Core Areas will be demonstrated to support at least 20
grasshopper sparrow pairs with evidence of successful reproduction within the first 5 years after
permit issuance. Successful reproduction is defined as a nest which fledged at least one known young.
Lincoln’s sparrow (breeding)
Melospiza lincolnii
Species Specific Conservation Objective: Within the MSHCP Conservation Area, maintain occupancy
within 3 large Core Areas (100 percent) in at least 1 year out of any 5 consecutive-year period. In
order for this species to become a Covered Species Adequately Conserved, the following conservation
must be demonstrated: Include within the MSHCP Conservation Area at least 100 acres in 3 Core
Areas. Core Areas may include the following: (1) Tahquitz Valley; (2) Round Valley; (3) Garner Valley.
The three Core Areas will be large, consisting of a minimum of 50 acres of montane meadow, wet
montane meadow, and edges of montane riparian or riparian scrub. The Core Areas will be
demonstrated to support at least 20 Lincoln's sparrow pairs with evidence of successful reproduction
within the first 5 years after permit issuance. Successful reproduction is defined as a nest which
fledged at least one known young.
Williamson's sapsucker
Sphyrapicus thyroideus
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this species
on Forest Service Land.
TABLE 9-3 (Continued)
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COMMON NAME/
SCIENTIFIC NAME REQUIREMENT
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MAMMALS
San Bernardino flying squirrel
Glaucomys sabrinus californicus
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm occupation of 1000 ha (2470 acres) with a mean density of at least 2
individuals per hectare (2 individuals per 2.47 acres) in the San Jacinto mountains; and in the San
Bernardino Mountains confirm occupation of 100 ha.
PLANTS
beautiful hulsea
Hulsea vestita ssp. callicarpha
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 16 localities (locality in this sense is not smaller than one quarter section)
with no fewer than 50 individuals each (unless a smaller population has been demonstrated to be
self-sustaining).
California bedstraw
Galium californicum ssp. primum
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this species
on Forest Service Land.
California muhly
Muhlenbergia californica
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)
containing at least 50 clumps (unless a smaller population has been demonstrated to be
self-sustaining).
chickweed oxytheca
Oxytheca caryophylloides
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)
managed with 1,000 individuals each (unless a smaller population has been demonstrated to be
self-sustaining).
Cleveland's bush monkeyflower
Mimulus clevelandii
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this species
on Forest Service Land.
cliff cinquefoil
Potentilla rimicola
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm five localities (locality in this sense is not smaller than one quarter section).
Coulter’s matilija poppy
Romneya coulteri
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 30 localities (locality in this sense is not smaller than one quarter section).
Fish’s milkwort
Polygala cornuta var. fishiae
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)
with at least 50 individuals (ramets or genets) each (unless a smaller population has been demonstrated
to be self-sustaining).
TABLE 9-3 (Continued)
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COMMON NAME/
SCIENTIFIC NAME REQUIREMENT
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graceful tarplant
Holocarpha virgata ssp. elongata
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)
with 1,000 individuals each (unless a smaller population has been demonstrated to be self-sustaining).
lemon lily
Lilium parryi
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this species
on Forest Service Land.
Mojave tarplant
Deinandra mohavensis
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Include within the MSHCP
Conservation Area at least four localities (locality in this sense is not smaller than one quarter section)
occupying at least 100 acres.
ocellated Humboldt lily
Lilium humboldtii ssp. ocellatum
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this species
on Forest Service Land.
Parry’s spine flower
Chorizanthe parryi var. parryi
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)
with at least 1,000 individuals (unless a smaller population has been demonstrated to be
self-sustaining).
peninsular spine flower
Chorizanthe leptotheca
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)
with at least 1,000 individuals (unless a smaller population has been demonstrated to be
self-sustaining).
Plummer’s mariposa lily
Calochortus plummerae
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm six localities (locality in this sense is not smaller than one quarter section)
of at least 500 individuals each (unless a smaller population has been demonstrated to be
self-sustaining).
Rainbow manzanita
Arctostaphylos rainbowensis
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)
with more than 50 individuals each (unless a smaller population has been demonstrated to be
self-sustaining).
shaggy-haired alumroot
Heuchera hirsutissima
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this species
on Forest Service Land.
TABLE 9-3 (Continued)
9.0 Conservation and Incidental
Take Estimates
COMMON NAME/
SCIENTIFIC NAME REQUIREMENT
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-24
small-flowered microseris
Microseris douglasii var. platycarpha
Species Specific Conservation Objective: In order for this species to become a Covered Species
Adequately Conserved, the following conservation must be demonstrated: Within the MSHCP
Conservation Area, confirm 10 localities (locality in this sense is not smaller than one quarter section)
with at least 1,000 individuals (unless a smaller population has been demonstrated to be
self-sustaining).
sticky-leaved dudleya
Dudleya viscida
In order for this species to become a Covered Species Adequately Conserved, a Memorandum of
Understanding must be executed with the Forest Service that addresses management for this species
on Forest Service Land.
Notes:
1 The species-specific conservation objectives listed in this table comprise only a portion of the objectives that must be satisfied for
each species. The objectives summarized in Table 9-2 and presented in detail in the species accounts of the MSHCP Reference
Docum ent, Volume II must also be fulfilled for each species.
9.3 MINIMIZATION AND MITIGATION MEASURES
Minimization and mitigation measures incorporated in the MSHCP Plan are presented in detail
throughout this document and the accompanying Reference Document - Volume II of the MSHCP.
This section summarizes and references those measures. Minimization and mitigation measures
have been incorporated in the MSHCP planning process and will be implemented during the long-
term MSHCP implementation process. The various points in the process during which minimization
and mitigation measures were and should be considered are listed below:
! during the alternatives development and conservation planning process;
! during the development of implementation procedures and strategies;
! during Reserve Assembly activities;
! during long-term management and monitoring activities.
As part of the alternatives development and conservation planning process, as discussed in detail
in Sections 2.0 and 3.4 of this document, a variety of alternatives and conservation planning
strategies were considered to minimize the likely effects on Covered Species of anticipated growth
in Western Riverside County. Of the four alternatives considered in detail, local stakeholders and
decision makers selected Alternative 1, the alternative addressing conservation needs for the greatest
number of species and the largest MSHCP Conservation Area. Also, as part of the conservation
9.0 Conservation and Incidental
Take Estimates
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-25
planning process, the circulation element required to accommodate projected growth was analyzed
in the context of conservation goals. Certain roads or road extensions were eliminated from the
circulation element or realigned in order to minimize impacts to Covered Species including the
following: Keller, Baxter, De Portola, Del Rio, Avenida la Cresta, Calle Contento, Murrieta Hot
Springs, Nicolas, Cactus Valley, Dunlap, Antelope Dawson, Newport, Estelle Mountain, Melanie,
Indian Truck Trail, Castile, Hixon, Gibble, Fairview, Orange, Reservoir, Pico, 9th, B Street, and 10th.
A Modified Reserve Design alternative was considered during the conservation planning process.
It was determined that this alternative did not provide for substantially greater Conservation of
Covered Species than would occur with the proposed Plan. This alternative was determined to be
infeasible as part of a screening process. The screening analysis is documented in the Alternatives
Screening Report included in the Appendix to the EIR/EIS for the MSHCP Plan and includes a
description of the Modified Reserve Design alternative as well as a discussion of the reasons why
the alternative was not carried forward for further analysis. While the Modified Reserve Design
alternative would not provide for Conservation of species in addition to the 146 anticipated to be
conserved under the MSHCP Plan, it would provide for a larger MSHCP Conservation Area and
broader Linkages. A substantial amount of the additional Conservation provided under this
alternative would be within areas designated for urban levels of Development and would thus
conflict with local land use plans.
A variety of implementation procedures and strategies are incorporated in the MSHCP to minimize
and mitigate impacts to Covered Species. These procedures and strategies are described in detail
in Sections 6.0 and 7.0 of this document and include elements such as the following - avoidance and
minimization; survey requirements for certain species and associated avoidance and minimization
requirements; criteria for siting, design, construction, operations and maintenance for Covered
Activities incorporating avoidance and minimization requirements; and measures to ensure that
indirect effects associated with land uses in proximity to the MSHCP Conservation Area are
minimized.
Likewise, a variety of measures are incorporated in the MSHCP Plan during the long-term Reserve
Assembly process to ensure that the MSHCP Conservation Area is assembled in a manner consistent
with MSHCP conservation goals and that the most appropriate lands are assembled for the MSHCP
Conservation Area. These measures include requirements for prioritization of acquisitions, use of
new information obtained as a result of surveys to focus acquisition efforts, guidelines to ensure that
Reserve Assembly occurs in general Rough Step with Take of Covered Species, and assurances of
adequate funding for Reserve Assembly.
9.0 Conservation and Incidental
Take Estimates
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-26
Comprehensive management and monitoring activities also will be undertaken during the life of the
MSHCP Permit as described in Section 5.0 of this document. The monitoring and management
plans are designed to address identified threats to Covered Species and to be consistent with MSHCP
conservation objectives that call for establishment of a functioning, self-sustaining MSHCP
Conservation Area.
Mitigation measures incorporated in the Plan to compensate for Take of Covered Species that cannot
be avoided or minimized, and to be undertaken by the Permittees include contribution of
approximately 103,000 acres to the MSHCP Conservation Area and adherence to the requirements
of the MSHCP. In addition, the Permittees will contribute to long-term management and monitoring
of the MSHCP Conservation Area. These contributions are described in greater detail in Section 8.0
of this document.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-27
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
INVERTEBRATES/CRUSTACEANS
Riverside fairy shrimp
(Streptocephalus
woottoni)
3 The Riverside fairy shrimp is narrowly distributed in the
Plan Area. It is known from five localities in deep vernal
pools. In the Plan Area vernal pools supporting Riverside
Fairy shrimp have identified on Murrieta stony clay loams,
Las Posas series, Wyman clay loam, and Willows soils.
Five known key populations occur within the Plan Area.
They are located on the Santa Rosa Plateau, Skunk
Hollow, Murrieta and Lake Elsinore back basin.
Preservation of this species must be analyzed based on
Core Areas. Riverside fairy shrimp requires specific
conditions, occurs in few locations, and uses a
well-defined Habitat that is narrowly distributed. This
species will require site specific considerations,
protection of essential Habitat on a landscape basis, and
species specific management conditions.
Objective 1: Include within the MSHCP Conservation Area at
least five Core Areas of occupied vernal pools (or
vernal pool complex) and their watersheds. Core
Areas include the Santa Rosa Plateau Ecological
Reserve (17,188 acres), Skunk Hollow (156 acres),
Murrieta (1,292 acres) and Lake Elsinore back basin
(3,180 acres).
Objective 2: Include within the MSHCP Conservation Area at
least 11,942 acres of landscape habitat area which
might contain suitable vernal pool habitat for
Riverside fairy shrimp (playa, basalt flows, and clay
soils). These areas may support other non-mapped
pools and depressions which may be suitable for
Riverside fairy shrimp.
Objective 3: Include within the MSHCP Conservation Area
additional areas within the Criteria Area identified as
important for the Riverside fairy shrimp. This
objective shall be met through implementation of
the Protection of Species Associated with Riparian/
Riverine Areas and Vernal Poolspolicy presented in
Section 6.1.2 of the MSHCP, Volume I. Wetland
mapping assembled as part of that policy shall be
reviewed as part of the project review process and,
if suitable Riverside fairy shrimp habitat, defined as
vernal pools, stock ponds, ephemeral ponds, or
other human-modified depressions, is identified on
the wetland maps and cannot be avoided, a
single-season dry or wet season survey for this
species shall be conducted by a qualified biologist
in accordance with accepted protocol. If survey
results are positive, 90 percent of the occupied
portions of the property that provide for long-term
Conservation value for the fairy shrimp shall be
conserved.
Conservation for the Riverside fairy shrimp
will be achieved by the inclusion of at least
11,942 acres of suitable Conserved
Habitat within five Core Areas which are
composed of large blocks of habitat within
the MSHCP Conservation Area. In
addition, other areas within the Criteria
Area identified as important for the
Riverside fairy shrimp will be conserved.
This objective shall be met through
implementation of the Protection of
Species Associated with Riparian/Riverine
Areas and Vernal Pools policy presented in
Section 6.1.2 of the MSHCP, Volume I.
Wetland mapping assembled as part of
that policy shall be reviewed as part of the
project review process and, if suitable
Habitat for this species is identified on the
wetland maps and cannot be avoided, a
single-season dry or wet season survey
for this species shall be conducted by a
qualified biologist in accordance with
accepted protocols. If survey results are
positive, 90 percent of the occupied
portions of the property that provide for
long-term Conservation value for the fairy
shrimp shall be conserved. Furthermore,
the Plan Area is contiguous with suitable
Habitat in Orange and San Diego counties.
Within the key population areas,
approximately 5,868 acres (33
percent) of potential vernal pool and
playa Habitat and suitable soils Habitat
land coverages would be located
outside the MSHCP Conservation
Area. Any Riverside fairy shrimp
present within this area would be
subject to Incidental Take under the
guidelines implemented as part of this
Plan.
Yes, see Section
6.1.2 (Protection
o f S p e c i e s
Associated with
Riparian/Riverine
Areas and Vernal
Pools).
8 General Management Measure 4. Each Reserve Manager
responsible for a Core Area containing Murrieta stony clay
loams, Las Posas series, Wyman clay loam, or Willows soils will
evaluate their Core Area for the presence of historic or vestigial
vernal pools. A program to enhance these areas will be
undertaken. Within the MSHCP Conservation Area, that pond
water seasonally will be identified and monitored for the
presence of fairy shrimp. Reserve Managers will ensure Habitat
support functions within the MSHCP Conservation Area by
maintaining and/or preserving watersheds of conserved known
or future vernal pools or depressions. Particular management
emphasis will be given to discing, illegal dumping and
maintaining hydrology.
Santa Rosa Plateau fairy
shrimp
(Linderiella santarosae)
3 The Santa Rosa Plateau fairy shrimp is narrowly
distributed in the Plan Area. It is restricted to cool-water
vernal pools which are formed on Southern Basalt Flows.
In the Plan Area, this species, and its microHabitat are
only known to occur on the Santa Rosa Plateau.
Objective 1: Include within the MSHCP Conservation Area at
least 32 acres of basalt flow vernal pools and a
majority of their watersheds within the Santa Rosa
Plateau Ecological Reserve.
Conservation for the Santa Rosa Plateau
fairy shrimp will be achieved by the
inclusion of at least 32 acres of suitable
basalt vernal pool Conserved Habitat
within 1 Core Area. In addition, at least
Within the key population areas, no
basalt flow vernal pool Habitat would
be located outside the MSHCP
Conservation Area, and approximately
252 acres (11 percent) of potential
Yes, see Section
6.1.2 (Protection
o f S p e c i e s
Associated with
Riparian/Riverine
8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and/or preserving watersheds
of conserved known and future basalt vernal pools. Particular
management emphasis will be given to maintaining hydrology.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-28
Because the Santa Rosa Plateau fairy shrimp requires
specific conditions, occurs in few locations, and is
confined to a well defined Habitat that is very narrowly
distributed, this species will require site specific
considerations, protection of preferred Habitat, and
species specific management conditions.
Objective 2: Include within the MSHCP Conservation Area at
least 2,134 acres of area on the basalt flow that
may contain unmapped vernal pool Habitat which
might support Santa Rosa Plateau fairy shrimp.
Objective 3: Include within the MSHCP Conservation Area
additional areas within the Criteria Area identified as
important for the Santa Rosa Plateau fairy shrimp.
This objective shall be met through implementation
of the Protection of Species Associated with
Riparian/Riverine Areas and Vernal Pools policy
presented in Section 6.1.2 of the MSHCP, Volume
I. Wetland mapping assembled as part of that
policy shall be reviewed as part of the project
review process and, if suitable Santa Rosa Plateau
fairy shrimp Habitat, defined as vernal pools, stock
ponds, ephemeral ponds, or other human-modified
depressions over Basaltic soils, is identified on the
wetland maps and cannot be avoided, a
single-season dry or wet season survey for this
species shall be conducted by a qualified biologist
in accordance with accepted protocols. If survey
results are positive, 90 percent of the occupied
portions of the property that provide for long-term
Conservation value for the fairy shrimp shall be
conserved.
2,134 acres of Basalt flow soils, which
may support suitable vernal pools within
the MSHCP Plan Area will be conserved.
This objective will be met through
implementation of the Protection of
Species Associated with Riparian/Riverine
Areas and Vernal Pools policy presented in
Section 6.1.2 of the MSHCP, Volume I.
Wetland mapping assembled as part of
that policy shall be reviewed as part of the
project review process and, if suitable
Habitat for this species is identified on the
wetland maps and cannot be avoided, a
single-season dry or wet season survey
for this species shall be conducted by a
qualified biologist in accordance with
accepted protocols. If survey results are
positive, 90 percent of the occupied
portions of the property that provide for
long-term Conservation value for the fairy
shrimp shall be conserved. Furthermore,
the MSHCP Plan Area is contiguous with
suitable Habitat in Orange, and San Diego
counties.
vernal pool supporting basalt flow
Habitats would be located outside the
MSHCP Conservation Area. The entire
known population would be included
within the MSHCP Conservation Area
and therefore, no Take of populations
is anticipated.
Areas and Vernal
Pools).
vernal pool fairy shrimp
(Branchinecta lynchi)
3 The vernal pool fairy shrimp is narrowly distributed at
relatively few locations within the MSHCP Plan Area in
suitable Habitat. It is present in vernal pools in three key
locations in the MSHCP Plan Area. Key locations are the
Santa Rosa Plateau Ecological Reserve, Skunk Hollow,
and Salt Creek in west Hemet. Conservation analysis for
this species must be considered based on Core Areas.
Because the vernal pool fairy shrimp requires specific
conditions, occurs in few locations, and uses a well
defined Habitat that is narrowly distributed, this species
will require site-specific considerations, protection of
essential Habitat on a landscape basis, and species
specific management conditions.
Objective 1: Include within the MSHCP Conservation Area at
least 476 acres of suitable Habitat by conserving
vernal pool and playa Habitat (does not include
watershed acreages) within the West Hemet portion
of Salt Creek, Santa Rosa Plateau Ecological
Reserve, and Skunk Hollow.
Objective 2: Include within the MSHCP Conservation Area at
least 2,647 acres of alkali playa (Willow, Traver and
Domino soils) in the floodplain of the San Jacinto
River and west Hemet portion of Salt Creek which
contains suitable Habitat for this species.
Objective 3: Include within the MSHCP Conservation Area at
least three Core Areas, which include the three
Conservation for the vernal pool fairy
shrimp will be achieved by the inclusion of
at least 3,123 acres of suitable Conserved
Habitat within three Core Areas which are
composed of large blocks of Habitat within
the MSHCP Conservation Area. In
addition, other areas within the Criteria
Area identified as important for the vernal
pool fairy shrimp will be conserved. This
objective shall be met through
implementation of the Protection of
Species Associated with Riparian/Riverine
Areas and Vernal Pools policy presented in
Section 6.1.2 of the MSHCP, Volume I.
Wetland mapping assembled as part of
About 67 acres (12 percent) of
potential vernal pool and playa Habitat
for the vernal pool fairy shrimp within
the three locations and 4,016 acres
(60 percent) of Willows, Traver, and
Domino soils within the flood plain of
the San Jacinto River and the west
Hemet portion of Salt Creek, would be
outside the MSHCP Conservation
Area. Any vernal pool fairy shrimp
present within this area would be
subject to Incidental Take under the
guidelines implemented as part of this
Plan.
Yes, see Section
6.1.2 (Protection
o f S p e c i e s
Associated with
Riparian/Riverine
Areas and Vernal
Pools).
8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and/or preserving watersheds
of conserved vernal pools or depressions. Particular
management emphasis will be given to farming, grazing,
alteration of hydrology and non-native Habitat creation.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-29
known occupied vernal pools (or vernal pool
complexes) and their watersheds in the West Hemet
portion of Salt Creek (4,043 acres), Santa Rosa
Plateau Ecological Reserve (17,188 acres), and
Skunk Hollow (156 acres).
Objective 4: Include within the MSHCP Conservation Area
additional areas within the Criteria Area identified as
important for the vernal pool fairy shrimp. This
objective shall be met through implementation of
the Protection of Species Associated with Riparian/
Riverine Areas and Vernal Pools policy presented in
Section 6.1.2 of the MSHCP, Volume I. Wetland
mapping assembled as part of that policy shall be
reviewed as part of the project review process and,
if suitable vernal pool fairy shrimp Habitat, defined
as vernal pools, stock ponds, ephemeral ponds, or
other human-modified depressions over willow
soils, is identified on the wetland maps and cannot
be avoided, a single-season dry or wet season
survey for this species shall be conducted by a
qualified biologist in accordance with accepted
protocol. If survey results are positive, 90 percent
of the occupied portions of the property that provide
for long-term Conservation value for the fairy
shrimp shall be conserved.
that policy shall be reviewed as part of the
project review process and, if suitable
Habitat for this species is identified on the
wetland maps and cannot be avoided, a
single-season dry or wet season survey
for this species shall be conducted by a
qualified biologist in accordance with
accepted protocols. If survey results are
positive, 90 percent of the occupied
portions of the property that provide for
long-term Conservation value for the fairy
shrimp shall be conserved. Furthermore,
the Plan Area is contiguous with suitable
Habitat in Orange, and San Diego
counties.
INVERTEBRATES/INSECTS
Dehli Sands flower-loving
fly
(Rhaphiomidas
terminatus abdominalis)
3 The Delhi Sands flower-loving fly is found at low numbers
and is narrowly distributed within the Plan Area. This
species is restricted by the distribution and availability of
open Habitats within the fine, sandy Delhi series soils.
USFWS has identified three main population areas are
known to currently or to have at one time existed in the
Plan Area. One is located in the northwestern corner of
the Plan Area, a second is located in the Jurupa Hills,
and the third is located in the Agua Mansa Industrial
Center area. Because the Delhi Sands flower-loving fly
requires a specific Habitat type, this species will require
site specific considerations, protection and enhancement
of this limited Habitat type, and species specific
management to maintain the Habitat and populations.
Conservation for this species within the Plan Area will occur
according to the process described in either Objective 1A,
Objective 1B or Objective 1C noted below. Under Objective 1A,
surveys for the Delhi Sands flower-loving fly will not be required
on a project-by-project bases. Under Objectives 1B and 1C,
project-by-project surveys in accordance with USFWS “Interim
General Survey Guidelines for the Delhi Sands flower-loving fly”
will be required. Any revisions to these Guidelines shall be
approved by the County in order for it to be applicable to the
requirements of the MSHCP.
Implementation of the Objectives below will provide for
Conservation of the Delhi Sands flower-loving fly. Initially, the
Local Permittees will utilize Objective 1B. However, During the life
Conservation for the Delhi sands
flower-loving fly will be achieved by the
inclusion of at least 50 acres of primary
Habitat and 170 acres of restorable Habitat
as Conserved Habitat within three Core
Areas within the MSHCP Conservation
Area, totaling approximately 220 acres.
This acreage may be updated based on
site-specific base mapping within three
years after permit issuance. The first
priority for Conservation will be within
Core Areas including the three known
point localities of the Delhi Sands
flower-loving fly. These locations include
Approximately 452 acres (90 percent)
of primary Habitat over Delhi soils and
791 acres (82 percent) of potentially
restorable Habitat for the Delhi sands
flower-loving fly would be outside the
MSHCP Conservation Area and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. One (25 percent) of the
5 precision code "1" records would be
outside the MSHCP Conservation
Area.
None 8 1** Reserve Managers will manage conserved lands to maintain
presence of Delhi fly at existing levels and provide opportunities
for colonization by Delhi fly within the 170 acres of restorable
lands to be conserved. Management considerations will include
measures to maintain ecological processes (i.e., sand
transport). As opportunities are available, Reserve Managers
will work with others involved in Delhi fly Conservation outside
the Plan Area to develop a scientifically acceptable program for
determining long-term evidence of successful reproduction.
Particular management measures for known and future
occurrences will include sand management (possibly
transporting soils mechanically within the MSHCP Conservation
Area to ensure that sand is maintained). The Core Areas will be
fenced and signed to prevent trespassing, possibly patrolled.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-30
of the Plan, the Local Permittees may elect to utilize Objective 1A,
1B or 1C. Fulfillment of the ultimate requirements of any single
one of the Objectives, 1A, 1B or 1C, in combination with the other
components of the MSHCP Conservation Strategy for this species
as described in the Introduction to Species Accounts, Volume II.B
of the MSHCP, is anticipated to provide for Conservation for the
Delhi Sands flower-loving fly.
Objective 1A: Include within the MSHCP Conservation Area,
Delhi soils in at least three Core Areas, totaling
220 acres of Additional Reserve Lands. Areas to
be conserved may include suitable dispersal
and/or movement habitat and interconnecting
linkages within the Core Areas themselves or be
contiguous to areas that have already been
conserved within and outside the Plan Area
including locations outside the MSHCP Criteria
Area or within San Bernardino County in the
situation noted below.
The first priority for conservation will be within
Core Areas including the three known occupied
areas that include the known localities of the
Delhi Sands flower-loving fly in the Plan Area.
These locations include one in the northwestern
corner of the Plan Area near Hamner Avenue and
SR-60 (Mira Loma), one in the Jurupa Hills, and
one in the Agua Mansa Industrial Center. If
conservation is not feasible in these areas, those
acres may be conserved in other locations
within the MSHCP Plan Area and outside the
Criteria Area or within San Bernardino County,
subject to approval by the Wildlife Agencies and
provided the other location has long-term
conservation value for the species. Long-term
conservation value will be measured by such
factors as occupation by the Delhi Sands flower-
loving fly on the lands to be conserved, presence
of Delhi soils, opportunities for connectivity to
other areas conserved for the species and other
appropriate factors. Conservation within Riverside
or San Bernardino County will be within Service
one in the northwestern corner of the Plan
Area near Hamner Avenue and SR-60, one
in the Jurupa Hills, and one in the vicinity
of the Agua Mansa Industrial Center. If
Conservation is infeasible in these areas,
other locations within the MSHCP Plan
Area and outside the Criteria Area, or
within San Bernardino County, may be
considered to achieve the acreage
Conservation requirement. If Conservation
occurs in these areas, it shall be
demonstrated that the conserved areas
will have long-term Conservation value for
the Delhi Sands flower-loving fly.
Long-term Conservation value will be
measured by such factors as occupation
by the fly on the lands to be conserved,
presence of Delhi soils, opportunities for
connectivity to other areas conserved for
the fly and other factors such as may be
determined by the Reserve Management
Oversight Committee. Also, the MSHCP
Conservation Area will include suitable
dispersal and/or movement Habitat and
interconnecting Linkages, including Delhi
soils and other open Habitats. These
Habitats will be conserved in between
Core Areas or areas that have already
been conserved for the Delhi Sands
flower-loving fly. Within the MSHCP
Conservation Area, Reserve Managers
shall document successful reproduction at
all three Core Areas within the MSHCP
Conservation Area, or other areas to be
conserved in accordance with Objective 1,
as measured by the presence/absence of
pupae cases or newly emerged (teneral)
individuals once a year for the first five
years after permit issuance and then as
determined by the Reserve Management
Oversight Committee as described in
Section 6.6 of the MSHCP, Volume I (but
These sites will be weeded and planted with native seed
collected locally.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-31
identified recovery units as set forth in the
Recovery Plan for the Delhi Sands flower-loving
fly.
Progress toward achieving this objective will be
measured and reported on an annual basis as
part of the annual reporting required in Section
6.11 of the Plan. Annual reporting with respect
to this Objective 1A will be in accordance with
the Rough Step analysis parameters described in
Section 6.7 of the Plan. For purposes of Reserve
Assembly accounting in accordance with the
Rough Step procedures, the baseline for analysis
will be Delhi Sands flower-loving fly suitable
habitat within the Criteria Area as depicted on
Figure 9-9. Suitable habitat for this species is
defined as Delhi soils co-occurring with coastal
sage scrub, grassland and alluvial fan sage scrub
(prime habitat) and Delhi soils co-occurring with
agriculture (restorable habitat). In accordance
with the requirements of Section 6.7 of the Plan,
if Objective 1A is selected by the Local
Permittees and the Rough Step rule is not met for
this species during any analysis period, the
Permittees must conserve appropriate lands
supporting suitable habitat to bring the Plan back
into the parameters of the rule prior to authorizing
additional loss of suitable habitat. The total
private lands acreage of suitable habitat within
the Criteria Area (“TA” in rough step rule) is 810
acres. The Additional Reserve Lands acreage
goal for suitable habitat “c” in rough step rule) is
220 acres. Loss of suitable habitat will be
measured only within the Criteria Area.
Conservation of suitable habitat will be measured
inside and outside the Criteria Area as long as the
Conservation meets the configuration parameters
of Objective 1A as stated in the first paragraph of
this Objective.
Objective 1B: With the exception of Cells 21, 22 and 55 within
Area Plan Subunit 3 of the Jurupa Area Plan
not less frequently than every 8 years).
Finally, the Plan Area is contiguous with
suitable Habitat in southern San
Bernardino County.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-32
discussed below, include within the MSHCP
Conservation Area locations within the Plan Area
determined to be occupied by the Delhi Sands
flower-loving fly based on the results of surveys
conducted in accordance with USFWS “Interim
General Survey Guidelines for the Delhi Sands
flower-loving fly.” Any revision to these
Guidelines shall be approved by the County in
order for it to be applicable to the requirements of
the MSHCP. Surveys shall be conducted for
future projects within the approximately 5,100
acres of mapped Delhi Soils within the Plan Area
(see Figure 9-10, Delhi Sands flower-loving fly
soils with Criteria Area).
It is understood that surveys would be conducted
within suitable habitat areas of the mapped Delhi
soils as determined by the surveying biologist.
For example, according to the MSHCP database
of the approximately 5,100 acres of mapped
Delhi soils within the Plan Area, approximately
2,500 acres (49%) are already developed
according to the MSHCP vegetation map and
would not be considered to be suitable habitat.
Once two years of surveys have been conducted,
no further surveys shall be required. If the
project site is determined to be occupied, 75
percent of the mapped Delhi Soils on site will be
conserved. However, if the surveying biologist
determines that distribution of habitat for the
Delhi Sands flower-loving on site is not
consistent with the extent of mapped Delhi Soils
on site, 75 percent of such habitat on site will be
conserved. The Service will be given 60 days to
review and comment on the surveying biologists
determination. If the Service disagrees with the
determination of the surveying biologist, the
applicable Local Permittee(s) and the Service will
meet and confer within 10 working days to
attempt to resolve the different determinations. If
it is determined that 75 percent conservation on
the occupied site is infeasible or the Service
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-33
concurs that such conservation would not
contribute to the long-term conservation of the
species, conservation may occur within the
conservation areas identified in Objective 1A at a
ratio of three times (3:1) the mapped Delhi soils
or subject to Service concurrence, the habitat of
the species as identified by survey biologist on
the identified occupied site. At such time asthe
cumulative conservation according to the above
methodology results in the conservation of 220
acres, no further surveys or conservation will be
required. If surveys for future projects are
conducted in accordance with USFWS Interim
General Survey Guidelines within the mapped
Delhi Soils within the Plan Area, not already
conserved, and no new Delhi Sands flower-loving
flies within the Plan Area are detected, no
additional conservation within the Plan Area will
be required.
Within Cells 21, 22 and 55 of Area Plan Subunit
3 of the Jurupa Area Plan, surveys shall not be
required. Instead, 50 acres of Additional Reserve
Lands shall be acquired within the geographic
areas identified in Objective 1A and according to
the reserve configuration guidance included in
Objective 1A. Tracking of acreage conserved and
lost within these cells shall be in accordance with
the Rough Step analysis parameters described in
Objective 1A. For purposes of Cells 21, 22 and
25, the total private lands acreage of suitable
habitat within the Criteria Area (“TA” in Rough
Step rule) is 270 acres. The Additional Reserve
Lands acreage goal for suitable habitat (“C” in
Rough Step rule) is 50 acres. Loss of suitable
habitat will be measured only within the Criteria
Area. Conservation of suitable habitat will be
measured inside and outside the Criteria Area as
long as the Conservation meets the configuration
parameters of Objective 1A.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-34
Objective 1C: Include within the MSHCP Conservation Area at
least 50 acres of Additional Reserve Lands within
the Plan Area and a combination of: 1) 80
percent of areas identified as occupied by the
Delhi Sands flower-loving fly by existing data or
determined to be occupied during surveys
conducted in accordance with USFWS ”Interim
General Survey Guidelines for the Delhi Sands
flower-loving fly” and any County approved
revisions to these Guidelines; and 2) mitigation
offsite at a ratio of 2:1 of areas determined to be
occupied by existing data or protocol surveys.
Surveys shall be conducted for projects within
the approximately 5,100 acres of mapped Delhi
Soils within the Plan Area (see Figure 9-10, Delhi
Sands flower-loving fly soils with Criteria Area).
Once two years of surveys have been conducted,
no further surveys shall be required. The survey
area may be modified by mutual agreement of the
Wildlife Agencies and the Permittee with land use
authority over the proposed project area. If
project surveys or existing data show occupancy
of the site or a portion of the site by the Delhi
Sands flower-loving fly, take of the Delhi Sands
flower-loving fly on 20 percent of the occupied
habitat may occur. The remaining 80 percent of
the onsite habitat shall be avoided by the project
applicant and managed for conservation of the
species. Due to the critical condition of this
species, the Wildlife Agencies and the Permittees
shall focus conservation efforts in the
northwestern portion of the Plan Area in areas
known to be occupied by the Delhi Sands flower-
loving fly. Upon the completion of the acquisition
of 50 acres of Delhi Sands flower-loving fly
habitat in Riverside County by the Parties, the
survey and mitigation/avoidance requirements
shall revert to:
! Projects proposed on the approximately
5,100 acres of Delhi Soils within the Plan
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-35
Area will conduct focused surveys using
USFWS “Interim General Survey
Guidelines for the Delhi Sands flower-
loving fly” and any County approved
revisions to these Guidelines to determine
occupancy by the Delhi Sands flower-
loving fly.
! When Delhi flies are present on the project
site, occupied habitat shall be mitigated at
a 2:1 ratio at a location consistent with
achieving long-term conservation value for
the species.
! If, prior to the conservation of the first 50
acres, a project has avoided 80 percent
of the occupied habitat on the project site,
the project proponent may request of the
Permittee a modification of their project to
allow the development of the 80 percent
avoidance area. If the Permittee, with the
concurrence of the Wildlife Agencies,
determines that the conservation of Delhi
Sands flower-loving fly habitat at an offsite
location would result in equal or greater
conservation value for the species than
the habitat in the 80 percent onsite
avoidance area and that the alternative
mitigation site is at a location consistent
with achieving long-term conservation
value for the species, then the Permittee
may authorize the loss of Delhi Sands
flower-loving fly habitat on the avoidance
area. The mitigation for this take shall be
at a 2:1 ratio with the take area being the
areas identified as the entire occupied
area (i.e., mitigation includes the occupied
habitat previously authorized for
development) when the 80 percent onsite
avoidance area was established.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-36
Objective 2: Within the MSHCP Conservation Area, Reserve
Managers shall document successful
reproduction at all three Core Areas or other
areas to be conserved in accordance with
Object ive 1, as measured by th e
presence/absence of pupae cases or newly
emerged (teneral) individuals once a year for the
first 5 years after permit issuance and then as
determined to be appropriate (but not less
frequently than every 8 years).
Quino checkerspot
butterfly
(Euphydryas editha quino)
3 The Quino checkerspot butterfly is narrowly distributed at
relatively few locations within the Plan Area in suitable
Habitat. Although they may occur in nearly any upland
Habitat that is relatively open, they are also restricted by
the distribution and availability of their host plants.
Because of wide-spread infestation of non-native exotic
weed species and Habitat type conversion, much of the
Habitat that was once open and suitable is now densely
vegetated and unsuitable. Patches of suitable Habitat
within larger Habitat matrices are unpredictably available
and distributed.
Spatially clustered Quino checkerspot butterfly
observations have been organized into occurrence
complexes for the purposes of Conservation analysis.
Occurrence complexes are known segments of
short-term population distributions presumed to be within
a larger distribution of metapopulations. There are 22
occurrence complexes within the Plan Area. Large and/or
strategically located occurrence complexes are
considered core populations. There are seven identified
Core population Areas.
The Lake Mathews/Estelle Mountain portion of the Lake
Mathews/Estelle Mountain/Harford Springs Core Area is
unoccupied; it was historically occupied, but Quino has
been extirpated. The other core populations occur in the
southwestern portion of the Riverside Basin in the south
and southeastern portions of the Plan Area from the
vicinity of Diamond Valley Lake trending to the south and
east into the Anza Valley.
Objective 1: Include within the MSHCP Conservation Area at
least 67,493 acres of Habitat mosaic (which may
include chaparral, coastal sage scrub, desert
scrubs, grasslands, peninsular juniper woodland
and scrub, playas and vernal pools, and
Riversidean alluvial fan sage scrub Habitats)
supporting the seven Core populations in the
southwest portion of the County, including 1) the
Lake Mathews/Estelle Mountain/ Harford Springs
Core Area (17,989 acres), 2) Warm Springs
Creek Core Area (3,517 acres), 3) Johnson
Ranch/Lake Skinner Core Area (8,068 acres), 4)
Oak Mountain Core Area (8,737 acres), 5) Wilson
Valley Core Area (9,303 acres), 6) Sage Core
Area (4,462 acres), and 7) Silverado/Tule Peak
Core Area (15,202 acres).
Objective 2: Include within the MSHCP Conservation Area the
12 known satellite (non-core) occurrence
complexes within the following six areas: French
Valley, Oak Mountain/Vail Lake, Anza Valley,
Sage/Wilson Valley, Brown Canyon/Cactus Valley
and Aguanga.
Objective 3: Within the MSHCP Conservation Area, maintain
landscape connectivity around the Lake
Mathews/Estelle Mountain/Harford Springs Core
Area and between and among the core and
satellite occurrence populations in the
southeastern portion of the Plan Area. In the
Lake Mathews Core Area, the MSHCP
Conservation for the Quino checkerspot
butterfly will be achieved by the inclusion
of at least 67,493 acres of Core Area
including suitable Conserved Habitat
mosaic within seven Core Areas and an
additional 12 satellite locations. These
areas are composed of large blocks of
Habitat within the MSHCP Conservation
Area. The Core Areas are provided with
numerous connections of Proposed and
Existing Cores. Potential dispersion
inhibitors, such as busy roads and
highways, will be modified by engineers to
accommodate movement of the species.
In addition, the MSHCP Plan will document
the distribution of Quino checkerspot on
an annual basis. The current population
size of the Quino checkerspot is unknown,
but the general distribution is, and a
relatively sizable database is present
within the UCR database. Furthermore,
the Plan Area is contiguous with suitable
Habitat in eastern San Diego County.
Approximately 41,668 acres (38%) of
potential Habitat mosaic within the
Core Area (15,511 acres [46%] in the
Lake Mathews/Estelle Mountain Core
Area; 1,305 acres [27%] in the Warm
Springs Core Area; 5,707 acres41%]
in the Johnson Ranch/Lake Skinner
Core Area; 4,291 acres [33%] acres in
the Oak Mountain Core Area; 102
acres (1%) in the Wilson Valley Core
Area; 8,999 acres [67%] of the Sage
Core Area, and; 5,728 acres [27%] of
the Silverado/Tule Peak Core Area) for
the Quino checkerspot would be
outside the MSHCP Conservation Area
and individuals within these areas will
be subject to incidental take consistent
with the Plan. Twenty-seven (32%) of
the 85 precision code "1" or "2"
records would be outside the MSHCP
Conservation Area. However of these,
three (11%) are mapped within
existing agriculture and one (4%) are
located in developed or disturbed
Habitat coverages.
None 1 Each Reserve Manager will evaluate the condition of the Quino
checkerspot Habitat within their Core Area and maintain an
adaptive program to maintain and/or enhance Quino checkerspot
Habitat to increase the value of the Habitat and viability of the
Quino checkerspot. This Adaptive Management program will
assess the efficacy of various methods such as fire to retain a
low vegetation layer or open aspect to the vegetation and
remove weedy annual species; using mechanical equipment to
attain Habitat openings within dense chaparral areas between
occupied areas to facilitate movement; or other measures which
might enhance unoccupied Habitat or preserve Habitat quality in
occupied areas. Reserve Managers will maintain landscape
connectivity around the Lake Mathews/Estelle Mountain/Harford
Springs Core Area and between and among the core and satellite
occurrence populations in the southeastern portion of the Plan
Area. In the Lake Mathews Core Area, the reserve configuration
will maintain landscape connectivity through native Habitat
between Lake Mathews, Olsen Canyon, Monument Peak,
Dawson Canyon, Estelle Mountain, Bull Canyon, Steele Valley,
Gavilan Hills, and Harford Springs areas. (In the southwestern
Riverside County area, reserve configuration will maintain
landscape connectivity through native Habitat between and
among the core population occurrences and the satellite
occurrences in Antelope Valley and Murrieta Hot Springs area,
east through the French Valley/Lake Skinner area, east to the
Sage and Santa Rosa Hills area, east and south through Wilson
Valley, Billy Goat Mountain, Aguanga, Tule Valley, and north to
Anza and the Cahuilla Indian Reservation.) Reserve Managers
will document distribution on an annual basis. Other
management activities will focus on non-native species, farming,
grazing, off-road vehicles and human collection.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-37
Quino checkerspot requires specific Habitat that is
narrowly distributed, is extremely vulnerable to Habitat
degradation and fragmentation, and will require site
specific management considerations.
Conservation Area configuration will maintain
landscape connectivity through native Habitat
between Lake Mathews, Olsen Canyon,
Monument Peak, Dawson Canyon, Estelle
Mountain, Bull Canyon, Steele Valley, Gavilan
Hills, and Harford Springs areas. In the
southwestern Riverside County area, the MSHCP
Conservation Area configuration will maintain
landscape connectivity through native Habitat
between and among the core population
occurrences and the satellite occurrences in
Antelope Valley and Murrieta Hot Springs area,
east through the French Valley/Lake Skinner area,
east to the Sage and Santa Rosa Hills area, east
and south through Wilson Valley, Billy Goat
Mountain, Aguanga, Tule Valley, and north to
Anza and the Cahuilla Indian Reservation.
The MSHCP Conservation Area configuration will
provide a connection between the Lake
Mathews/Estelle Mountain/Harford Springs Core
Area and the other Core Areas through the Steele
Peak/North Peak North Elsinore/Warm Springs,
Sedco Hills and Iodine Spring areas. Numerous
roads and highways cross this connection and
engineering design measures will be
implemented to accommodate dispersion of
butterflies throughout the Plan Area.
Objective 4: Within the MSHCP Conservation Area, Reserve
Managers will document the distribution of Quino
checkerspot on an annual basis.
FISH
arroyo chub
(Gila orcutti)
2 The arroyo chub is distributed within two watersheds, the
Santa Ana and Santa Margarita watersheds. It occurs in
several locations within these watersheds. Although the
preferred Habitat, open water and emergent vegetation in
lower gradient streams with sand or mud substrate, is
located in numerous areas within the Plan Area, only six
Objective 1: Include within the MSHCP Conservation Area,
4,580 acres of Habitat that provides potential
spawning and foraging opportunities for the
arroyo chub in the Santa Ana and Santa
Margarita watersheds.
Conservation for this species will be
achieved by inclusion of at least 4,580
acres of suitable Conserved Habitat
including the occupied Habitat (water and
freshwater marsh) and adjacent buffer and
streambank (includes a variety of Habitats)
About 520 acres (10 percent) of
potential Habitat for the arroyo chub
will be outside the Criteria Area and
Public/Quasi-Public designations and
individuals within these areas will be
subject to Incidental Take consistent
None 8 General Management Measure 4. Reserve Managers will
prepare an Adaptive Management plan for the arroyo chub. The
management plan will address threats to the chub from
degraded Habitat, including reduced water quality, loss of Habitat
and introduction of non-native species; identify areas of the
watershed that are necessary to successful spawning of the
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-38
drainages currently support populations of the arroyo
chub. These locations comprise the Core Areas for the
species and include the Santa Margarita River, De Luz
Creek upstream of the De Luz Post Office, lower Sandia
Creek, Murrieta Creek near its mouth at the Santa
Margarita River, Cole Creek between the confluence of
Murrieta Creek and the edge of the Conservancy property,
and Temecula Creek upstream of Vail Lake. Within the
Santa Ana River, the species Core Area occurs from the
Riverside and San Bernardino county line downstream to
the Prado Dam (Swift 2001). Because it requires specific
well known Habitat conditions and occurs in few Core
Areas within a larger Habitat category, the arroyo chub
will require Conservation on a landscape level as well as
on site specific considerations for the known Core Areas
as a Group 2 species.
Objective 2: Include within the MSHCP Conservation Area, the
suitable Core Areas for the arroyo chub in the
Santa Ana watershed. Conserve the natural river
bottom and banks, including the adjacent upland
Habitat where available to provide shade and
suitable microclimate conditions (e.g., alluvial
terraces, riparian vegetation) of the Santa Ana
River from the Orange County and Riverside
County line to the upstream boundary of the Plan
Area.
Objective 3: Include within the MSHCP Conservation Area, the
suitable Core Areas and available adjacent Habitat
for the arroyo chub in the Santa Margarita
watershed. Conserve the natural river and or
creek bottom and banks up to an elevation of 400
meters in the reach of the Santa Margarita River
in the Plan Area, and in De Luz Creek and its
tributary downstream to the County line, in upper
Sandia Creek downstream to the County line, in
Murrieta Creek from Winchester Road to near its
confluence with the Santa Margarita River, in
Cole Creek between its confluence with Murrieta
Creek and the boundary of Conservancy property
and in Temecula Creek from Long (Smith)
Canyon just below the falls near the County line
downstream to a concrete drop structure at
Highway 79 (upstream of Vail Lake).
Objective 4: Within the MSHCP Conservation Area, the
Reserve Managers responsible for the areas
identified in the Santa Margarita watershed will
assess the range of chub movement in the
watershed and the need for connectivity and
identify measures to restore connectivity to be
implemented as feasible.
Objective 5: Within the MSCHP Conservation Area, the
Reserve Managers responsible for the areas
identified in Objectives 2 and 3 will assess
threats to the chub from degraded Habitat (e.g.,
within the MSHCP Conservation Area. All
of the known and potential locations,
refugia, and spawning areas are included
within the MSHCP Conservation Area. In
addition, Objectives 4 and 5 will provide
assessment of barriers and threats to the
arroyo chub by the Reserve Managers and
shall identify measures to be implemented
if feasible.
with the Plan. A total of 10 acres (3
percent) of the open water Habitat
within the Santa Ana River will be
outside the Criteria Area and
Public/Quasi-Public designations.
These open water areas are currently
unsuitable areas of isolated ponds that
are not connected to the Santa Ana
River but are located within the area
analyzed for Conservation of this
species. Other upland and adjacent
areas within the Santa Ana River
watershed that are not conserved
include adjacent Habitat within the
Green River Golf Club, an upland area
within the Silver Lakes areas and
upland area between Mission
Boulevard and Rancho Jurupa Park
where the adjacent Habitat area
narrows. None of the stream channel
reaches of the Santa Ana River are
outside of the MSHCP Conservation
Area. None of the open water or
emergent vegetation within the Santa
Margarita River and its arroyo chub
occupied tributaries is located outside
the Criteria Area and Public/Quasi-
Public designations. Other upland and
adjacent areas within the Santa
Margarita River watershed that are not
conserved include adjacent Habitat
within De Luz Creek which averages
narrower than the 600-foot area
analyzed for Conservation. This
drainage averages approximately 380
feet in width within the MSHCP
Conservation Area. De Luz Creek
drainage is conserved, however the
buffer of upland Habitat is narrower
than most of the other drainages
within which the arroyo chub occurs.
chub; and identify and implement Habitat Conservation
measures to protect these critical areas from degradation due to
flood control and water Conservation operations. The
management plan will also include monitoring to assess current
range of chub movement within the Santa Margarita River
watershed and assess the need for connectivity within the
portion of the watershed in the Plan Area and implement
measures to restore connectivity if needed. Reserve Managers
will enhance and/or create Habitat for the chub to appropriate
conditions for spawning, foraging and refugia in both the Santa
Ana River and Santa Margarita River watersheds. Reserve
Managers will identify and protect spawning sites and monitor
annually each of the Core Areas in order to obtain estimates of
recruitment success. Enhancement measures will include
removal of exotic species, the creation of stream meanders,
pool-riffle complexes and reestablishment of native riparian
vegetation. Existing flood control structures will be evaluated for
need and modified as possible and as the opportunity arises to
improve fish Habitat. Within the Santa Ana River, enhancement
measures will be concentrated in the area down stream of
Mission Boulevard to the Riverside/Orange county line to reduce
Habitat favorable to non-native species, thereby reducing
predatory and competitive pressure on the chub. Reserve
Managers will conduct or cooperate with Federal, state and local
agencies in a bullfrog and non-native fish species eradication
program within the Santa Ana River and Santa Margarita River
watersheds. Fishes to be eradicated include channel catfish,
carp, largemouth bass, green sunfish, bullhead, tilapia, and
mosquitofish. This program will include the development of fish
barriers at sources of non-native species (e.g., Prado ponds or
Evans Lake) and the active removal of non-native fish through
mechanical means (e.g., gill nets, trapping, etc.). Reserve
Managers responsible for the areas identified in the Santa
Margarita Margarita watershed will assess the range of arroyo
chub movement in the watershed and the need for connectivity
and identify measures to restore connectivity to be implemented
as feasible.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-39
reduced water quality, loss of Habitat, presence
of non-native predators and vegetation); identify
areas of the watershed that are necessary to
successful spawning of the chub, identify areas
for creation of stream meanders, pool riffle
complexes and reestablishment of native riparian
vegetation as appropriate and feasible and
identify and implement management measures to
address threats and protect critical areas.
None of the Core Areas, spawning
areas, dispersal, or refugia areas are
outside of the MSHCP Conservation
Area for either watershed. It should be
noted that wetland Habitats located
outside the MSHCP Conservation Area
would be subject to the Protection of
S p e c i e s A s s o c i a t e d w i t h
Riparian/Riverine Areas and Vernal
Pools policy presented in Section
6.1.2 of the MSHCP, Volume I.
The Incidental Take of the chub is
difficult to quantify because larva and
adults are quite small in body sizes,
finding a dead or impaired specimen is
unlikely, the species occurs in Habitat
that make detection difficult and
losses may be masked by fluctuations
in abundance and distribution during
the life of the permit.
Santa Ana sucker
(Catastomus santaanae)
3 The Santa Ana sucker is narrowly distributed at few
locations within the Plan Area. Although the preferred
Habitat, open water and emergent vegetation occurs in
numerous areas within the Plan Area, suckers are
concentrated within 5 to 10 miles of the Santa Ana River
(between the Riverside/San Bernardino County line and
Van Buren Boulevard) and disperse into more marginal
Habitats (between Van Buren and Prado Dam). There are
suckers present below Prado Dam, however this area is
probably a sink because the dam is a barrier to upstream
migration. The Santa Ana sucker has specific Habitat
requirements and conditions within the larger riverine
Habitat within which it occurs. Because it requires
specific Habitat conditions, occurs in few locations within
a larger Habitat category, and occurs in low densities, the
Santa Ana sucker will require Conservation on a
landscape level, with site specific considerations and
management at the known locations and thus has been
identified as a Group 3 species.
Objective 1: Include within the MSHCP Conservation Area
3,480 acres of the suitable Habitat for the Santa
Ana sucker including the Santa Ana River within
the natural river bottom and banks.
Objective 2: Include within the MSHCP Conservation Area the
Core Areas upstream of River Road, between
River Road and Prado Dam, and downstream of
Prado Dam; the known spawning areas at
Sunnyslope Creek and within the area just below
Mission Boulevard upstream to the Rialto Drain;
and refugia and dispersal areas including the
Market Street Seep, Mount Rubidoux Creek, Anza
Park Drain, Arroyo Tequesquite, Hidden Valley
Drain, and Evans Lake Drain.
Objective 3: Include within the MSHCP Conservation Area the
natural river bottom and banks of the Santa Ana
River from the Orange County and Riverside
County line to the upstream boundary of the Plan
Area, including the adjacent upland Habitat,
Conservation for this species will be
achieved by inclusion of at least 3,480
acres of suitable Conserved Habitat
including the occupied Habitat (water and
freshwater marsh) and adjacent buffer and
streambank (includes a variety of Habitats)
within the MSHCP Conservation Area. All
of the known and potential refugia and
spawning areas are included within the
MSHCP Conservation Area. In addition,
Objectives 4 and 5 will provide
assessment of barriers and threats to the
Santa Ana sucker by the Reserve
Managers and will identify measures to be
implemented if feasible.
The Incidental Take of the sucker is
difficult to quantify because larva and
adults are quite small in body sizes,
finding a dead or impaired specimen is
unlikely, the species occurs in Habitat
that make detection difficult and
losses may be masked by fluctuations
in abundance and distribution during
the life of the permit.
About 390 acres of potential Habitat
for the Santa Ana sucker, including the
preferred Habitat and the Habitat
adjacent to the channel, will be outside
t h e C r i t e r i a A r e a a n d
Public/Quasi-Public designations, or
about 10 percent of the total potential
Habitat. A total of 10 acres (3
percent) of the open water Habitat that
is potentially occupied by the Santa
Ana sucker will be outside the Criteria
None 8 General Management Measure 4. Reserve Managers will
conduct, or cooperate with Federal, state and local agencies in
a bullfrog and non-native fish species eradication program within
the Santa Ana River. Fishes to be eradicated include channel
catfish, carp, largemouth bass, green sunfish, bullhead, tilapia,
and mosquitofish. This program will include the development of
fish barriers at sources of non-native species (e.g., Prado ponds
or Evans Lake) and the active removal of non-native fish through
mechanical means (e.g., gillnets, trapping, etc.). Reserve
Managers will prepare a monitoring plan to assess extent of
sucker movement within the Santa Ana River. Within the
MSHCP Conservation Area, current migration barriers to the
sucker include Prado Dam and culverts immediately below River
Road Bridge. The management plan will assess the need for
population connectivity within the Santa Ana River and
implement measures to remove barriers. Reserve Managers will
conserve the natural river bottom and banks and adjacent
Habitats which provide shade and suitable microclimate
conditions (e.g., alluvial terraces, riparian vegetation) of the
Santa Ana River with a minimum of 0.5 mile upstream of the
confluence of each of the tributaries to the Santa Ana River
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-40
where available, to provide shade and suitable
microclimate conditions (e.g., alluvial terraces,
riparian vegetation).
Objective 4: Within the MSHCP Conservation Area, the
Reserve Managers responsible for the areas
identified in Objectives 2 and 3 will assess
barriers to sucker movement and the need for
connectivity and identify measures to restore
connectivity to be implemented as feasible.
Objective 5: Within the MSHP Conservation Area, the Reserve
Managers responsible for the areas identified in
Objectives 2 and 3 will assess threats to the
sucker from degraded Habitat (e.g., reduced
water quality, loss of Habitat, presence of
non-native predators and vegetation); identify
areas of the watershed that are necessary to
successful sucker spawning, identify areas for
creation of stream meanders, pool riffle
complexes and reestablishment of native riparian
vegetation as appropriate and feasible and
identify and implement management measures to
address threats and protect critical areas.
Area and Public/Quas i-Public
designations. These open water areas
are currently unsuitable areas of
isolated ponds that are not connected
to the Santa Ana River but are located
within the area analyzed for
Conservation of this species. Other
upland and adjacent areas that are not
conserved include adjacent Habitat
within the Green River Golf Club, an
upland area within the Silver Lakes
areas and upland area between
Mission Boulevard and Rancho Jurupa
Park where the adjacent Habitat area
narrows. None of the stream channel
reaches of the Santa Ana River are
outside of the MSHCP Conservation
Area. None of the Core population
areas, spawning areas, dispersal, or
refugia areas are outside of the
MSHCP Conservation Area. It should
be noted that wetland Habitats located
outside the MSHCP Conservation Area
would be subject to the Protection of
S p e c i e s A s s o c i a t e d w i t h
Riparian/Riverine Areas and Vernal
Pools policy presented in Section
6.1.2 of the MSHCP, Volume I.
between the Riverside/San Bernardino County line and the
Riverside/Orange County line. Tributaries include Sunnyslope
Creek, Mount Rubidoux Creek, Arroyo Tequesquite, Anza Park
Drain, Evans Lake Drain, Temescal Creek and Aliso Creek.
Reserve Managers will maintain or improve existing water quality
and flow levels in the Santa Ana River by the use and
enforcement of current or better water quality standards and at
a minimum maintenance of existing flows. Permitted activities
must maintain current water quality standards and flows.
Reserve Managers will enhance and/or create Habitat for the
sucker to appropriate conditions for spawning, foraging and
refugia within the Santa Ana River and its tributaries as directed
in the management plan. Enhancement measures will include
control of exotic plant species, the creation of stream meanders,
pool-riffle complexes and reestablishment of native riparian
vegetation. Enhancement measures will be concentrated in the
area between Mission Boulevard and the Riverside/Orange
county line to reduce Habitat favorable to non native species,
thereby reducing predatory and competitive pressure on the
sucker. Reserve Managers will protect and manage the core
population areas upstream of River Road, between River Road
and Prado Dam, and downstream of Prado Dam, the known
spawning areas at Sunnyslope Creek and within the area just
below Mission Boulevard upstream to the Rialto Drain and
refugia and dispersal areas including the Market Street Seep,
Mount Rubidoux Creek, Anza Park Drain, Arroyo Tequesquite,
Hidden Valley Drain, and Evans Lake Drain. Reserve Managers
will identify and implement steps to reduce the turbidity that
currently affect the water quality below the Prado Dam by
conducting a sediment transport study on the Santa Ana River
in cooperation with other Federal, local and state agencies.
Reserve Managers responsible for the areas identified in
Objectives 2 and 3 of the Species Account will assess barriers
to sucker movement and the need for connectivity and identify
measures to restore connectivity to be implemented as feasible.
Reserve Managers will conduct, or cooperate with Federal, state
and local agencies in, a bullfrog and non-native fish species
eradication program within the Santa Ana River. Fishes to be
eradicated include channel catfish, carp, largemouth bass, green
sunfish, bullhead, tilapia, and mosquitofish. This program will
include the development of fish barriers at sources of non-native
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-41
species (e.g., Prado ponds or Evans Lake) and the active
removal of non-native fish through mechanical means (e.g.,
gillnets, trapping, etc.).
AMPHIBIANS
arroyo toad
(Bufo californicus)
3 The arroyo toad has narrow Habitat requirements and
limited distribution within the Plan Area, typically being
restricted to the middle reaches of third order streams.
Currently, the known distribution of arroyo toads within
the Plan Area include Temecula Creek, Arroyo Seco
Creek, Tenaja Creek, Los Alamos Creek, San Jacinto
River, Bautista Creek, and Wilson Creek. These areas
have also been modeled as key populations and Habitat
for this species. Primary Habitat for this species includes
suitable riparian Habitat with secondary Habitats including
adjacent upland areas. Because the arroyo toad requires
very specific breeding Habitat conditions, only occurs
within a few locations, and uses a well-defined Habitat
that is narrowly distributed, this species will require site
specific considerations, protection of primary breeding
Habitat and adjacent upland areas, and species-specific
Conservation measures.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for arroyo
toad will be conducted as part of the project review
process for public and private projects within the
amphibian species survey area where suitable Habitat is
present (see Amphibian Species Survey Area Map, Figure
6-3 of the MSHCP, Volume I). Arroyo toad located as a
result of survey efforts shall be conserved in accordance
with procedures described within Section 6.3.2, MSHCP,
Volume 1.
Objective 1: Include within the MSHCP Conservation Area at
least 1,602 acres of suitable breeding Habitat
(riparian scrub, woodlands and forests, meadows
and marshes, and alluvial fan scrub Habitat).
Suitable breeding Habitat for the arroyo toad
includes low-gradient (usually less than 2
percent), sandy stream reaches that often
(although not necessarily annually) support
shallow pools with little current that persist for at
least three months during the spring and
summer.
Objective 2: Include within the MSHCP Conservation Area at
least nine Core Areas which include portions of
San Juan Creek (1,414 acres), Los Alamos Creek
(7,898 acres), San Jacinto River (3,096 acres),
Indian Creek (5,973 acres), Bautista Creek (3,148
acres), Wilson Creek (2,631 acres), Temecula
Creek (5,663 acres), Arroyo Seco (2,798 acres),
and Vail Lake (1,017 acres)(as discussed below).
Objective 3: Include within the MSHCP Conservation Area at
least 7,005 acres of necessary suitable upland
Habitat as defined within the species account,
adjacent to San Juan Creek, San Jacinto River,
Indian Creek, Bautista Creek, Wilson Creek,
Temecula Creek, Arroyo Seco, and Vail Lake,
including agricultural lands, woodlands and
forests, chaparral, coastal sage scrub, and
grasslands.
Objective 4: Surveys for arroyo toad will be conducted as part
of the project review process for public and
private projects within the amphibian species
survey area where suitable Habitat is present
(see Amphibian Species Survey Area Map, Figure
6-3 of the MSHCP, Volume I). Arroyo toad
Conservation for the arroyo toad will be
achieved by the inclusion of at least 8,607
acres of suitable Conserved breeding and
adjacent upland Habitat within nine Core
Areas which are composed of streams or
rivers with adjacent uplands within the
MSHCP Conservation Area. The Core
Areas are not necessarily connected to
one another, but potential Linkages exist.
In addition, surveys for arroyo toad will be
conducted as part of the project review
process for public and private projects
within the amphibian species survey area
where suitable Habitat is present (see
Amphibian Species Survey Area Map,
Figure 6-3 of the MSHCP, Volume I).
Arroyo toad locations identified as a result
of survey efforts will be conserved in
accordance with the procedures described
in Section 6.3.2 of the MSHCP, Volume I.
Within the MSHCP Conservation Area,
Reserve Managers will maintain or, if
feasible, restore ecological processes
within occupied Habitat and suitable new
areas, given existing constraints and
activities covered under the MSHCP. At a
minimum, these areas will include
portions of San Juan Creek, San Jacinto
River, Indian Creek, Bautista Creek, Wilson
Creek, Temecula Creek, Arroyo Seco, and
Vail Lake, which are important to the
arroyo toad. Within the MSHCP
Conservation Area, Reserve Managers will
maintain breeding populations at a
minimum of 80 percent of the conserved
breeding locations as measured by the
presence/absence of juveniles toads,
Approximately 296 acres (16 percent)
of occupied and modeled suitable
breeding Habitat and 2,321 (25
percent) of occupied and modeled
suitable upland Habitat adjacent to
breeding Habitat (2,617 acres total [23
percent]), would be located outside
the MSHCP Conservation Area, and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Outlying areas will be
subject to surveys and protection.
Because the location of these
occupied areas is yet unknown, the
following gaps are identified. Gaps in
modeled suitable Habitat coverage
occur within the San Jacinto and
Santa Margarita Watershed areas.
Gaps within the San Jacinto area
primarily occur on Forest Service and
Bureau of Land Management
in-holdings along Bautista Creek
(Sections 27, 26, 34, and 35 [T.5S.,
R.1W.] and Section 1 [T.6S., R.1E.])
and on forest in-holdings (Sections
17, 18, 19, ad 20 [T.5S., R.2E.] and
Section 13 [T.5S., R.1.E.]) and other
areas (Sections 10, 11, 14, and 15
[T.5S., R.1E.]) along the San Jacinto
River. Gaps within the Santa
Margarita Watershed area primarily
occur on forest service in-holdings
along Arroyo Seco Creek in the vicinity
of Crosley Homestead (Sections 25
and 36 [T.8S., R.1W.], Sections 1 and
2 [T.9S., R1W.], and Section 31
[T.8S., R.1E.]) and other areas along
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 1 to 5 General Management Measure 4. Reserve Managers will
maintain ecological processes within occupied Habitat and
suitable new areas within the MSHCP Conservation Area, given
existing constraints and activities covered under the MSHCP. At
a minimum, these areas will include portions of San Juan Creek,
San Jacinto River, Tenaja Creek, Los Alamos Creek, Indian
Creek, Bautista Creek, Wilson Creek, Temecula Creek, Arroyo
Seco, and Vail Lake, which are important to the arroyo toad. The
ecological processes and breeding populations will be
maintained as a result of management measures with regard to
alteration of hydrology and flood control, non-native plant
species, farming, mining, grazing, recreation, and predation.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-42
locations identified as a result of survey efforts
shall be conserved in accordance with the
procedures described in Section 6.3.2 of the
MSHCP, Volume I.
Objective 5: Within the MSHCP Conservation Area, Reserve
Managers shall maintain or, if feasible, restore
ecological processes within occupied Habitat and
suitable new areas within the Criteria Area, given
existing constraints and activities covered under
the MSHCP. At a minimum, these areas will
include portions of San Juan Creek, San Jacinto
River, Indian Creek, Bautista Creek, Wilson Creek,
Temecula Creek, Arroyo Seco, and Vail Lake,
which are important to the arroyo toad.
NOTE: Maintaining or, if feasible, restoring
ecological processes within the MSHCP
Conservation Area may include: allowing for
natural dynamic fluvial processes of flooding and
Habitat regeneration, and possibly fire, to
maintain healthy alluvial fan Habitat, and other
riparian Habitat; careful planning and design of
existing and future authorized used that may
affect natural processes such as flood control,
water Conservation, and sand and gravel mining;
controlling or removing known threats from
important arroyo toad creeks and rivers (i.e.,
portions of San Juan Creek, San Jacinto River,
Indian Creek, Bautista Creek, Wilson Creek,
Temecula Creek, Arroyo Seco, and Vail Lake),
including, but not limited to, eliminating
non-native fishes and bullfrogs; restoring natural
hydrologic processes; limiting livestock access to
streams, creeks, ponds, and pools; limiting
recreational use of certain areas; altering water
use; controlling farming and agricultural practices
within and adjacent to occupied Habitat or
upstream of occupied Habitat; controlling weed
abatement, discing, and pesticide/herbicide use
adjacent and upstream of occupied Habitat, and;
removing exotic vegetation.
tadpoles, or egg masses across any five
consecutive years. Furthermore, the Plan
Area is contiguous with suitable Habitat in
eastern Riverside, San Bernardino,
Orange, and San Diego counties.
Temecula Creek in the Aguanga Valley
(Sections 19, 28, 29, 33, and 34
[T.8S., R.1E.]) although the main
creek areas are included with
minimum 1,000-foot buffers.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-43
Objective 6: Within the MSHCP Conservation Area, maintain
breeding populations at a minimum of 80 percent
of the conserved breeding locations as measured
by the presence/absence of juveniles toads
(roughly 10 to 30 mm [Sweet 1993]), tadpoles,
or egg masses across any 5 consecutive years.
California red-legged frog
(Rana aurora draytonii)
3 The California red-legged frog has narrow Habitat
requirements and limited distribution within the Plan Area,
typically being restricted to the lowland streams,
wetlands, and pools where dense vegetation surrounds
relatively deep water with small (<300 km2) watersheds.
They also require adjacent upland areas to move between
suitable breeding sites. Currently, the known distribution
of red-legged frogs within the Plan Area is limited to the
Santa Rosa Plateau (Cole Creek). Suitable plateau and
drainage Habitat and connections to other suitable Habitat
in the southern Santa Ana Mountains has been delineated
for this species. Primary breeding Habitat for this species
includes suitable wetland Habitat with secondary Habitats
including adjacent upland areas. Because the red-legged
frog requires very specific breeding Habitat conditions,
only occurs within a single location, and uses a well
defined Habitat that is narrowly distributed, this species
will require site specific considerations, protection of
primary breeding Habitat and adjacent upland areas, and
species-specific Conservation measures.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for California
red-legged frog will be conducted as part of the project
review process for public and private projects within the
amphibian species survey area where suitable Habitat is
present (see Amphibian Species Survey Area Map, Figure
6-3 of the MSHCP, Volume I). California red-legged
frogs located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.3.2, MSHCP, Volume 1.
Objective 1: Include within the MSHCP Conservation Area at
least 766 acres of occupied and historic breeding
Habitat (riparian scrub, woodlands and forests,
open water, and playas and vernal pools).
Breeding Habitat for the red-legged frog includes
cool, deep pools, lowland streams, and other
wetlands where dense vegetation surrounds
relatively them. These areas generally have a
small (<300 km2) watershed.
Objective 2: Include within the MSHCP Conservation Area the
Core Areas in the Santa Rosa Plateau (9,028
acres) and the southern Santa Ana Mountains
(30,964 acres), and the intervening lands which
shall provide movement between the Core Areas.
The intervening lands are primarily situated
around Avenoloca Mesa, Redonda Mesa, slopes
and foothills of Squaw Mountain, and Alamos
Canyon.
Objective 3: Include within the MSHCP Conservation Area at
least 39,147 acres of upland Habitat adjacent to
occupied or suitable breeding Habitat. These
areas are situated around the Santa Rosa
Plateau, southern Santa Ana Mountains, and
intervening lands including Avenoloca Mesa,
Redonda Mesa, slopes and foothills of Squaw
Mountain, Alamos Canyon and environs. Upland
Habitats include woodlands and forests,
chaparral, coastal sage scrub, and grasslands.
Objective 4: Surveys for this species will be conducted as part
of the project review process for public and
private projects within the amphibian species
survey area where suitable Habitat is present
Conservation for the California red-legged
frog will be achieved by the inclusion of at
least 39,913 acres of suitable Conserved
primary breeding Habitat and Conserved
secondary upland Habitat within 2 Core
Areas which are composed of large blocks
of Habitat within the MSHCP Conservation
Area. The Core Areas are connected by a
large interstitial area which has small
drainages and large upland areas which
will need to be protected as they are
determined to be important to red-legged
frog. In addition, surveys for this species
will be conducted as part of the project
review process for public and private
projects within the amphibian species
survey area where suitable Habitat is
present (see Amphibian Species Survey
Area Map, Figure 6-1 of the MSHCP,
Volume I). Red-legged frog locations
identified as a result of survey efforts shall
be conserved in accordance with
procedures described within Section
6.3.2, MSHCP, Volume 1. Within the
MSHCP Conservation Area, Reserve
Managers shall maintain or, if feasible,
restore ecological processes within
occupied Habitat and suitable new areas.
At a minimum, these areas will include the
Santa Rosa Plateau, San Mateo
Wilderness area of the Cleveland National
Forest, Squaw Mountain, Avenacola Mesa
Redondo Mesa, Alamos Canyon, and
surrounding areas. Within the MSHCP
Conservation Area, Reserve Managers
Incidental Take of the California
red-legged frog is difficult to quantify
due to a relative lack of species
occurrence data. However, the
maximum level of Take of the
red-legged frog can be anticipated by
the loss of the number of acres of
Habitat that will become unsuitable for
this species, and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan. Approximately 47 acres (6
percent) of probable suitable primary
breeding Habitat and 9,371 (19
percent) of suitable secondary upland
movement Habitat (9,418 acres total
[19 percent]), would be located
outside the MSHCP Conservation
Area.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 1** General Management Measure 4. Reserve Managers will
maintain ecological processes within occupied Habitat and
appropriate new areas within the MSHCP Conservation Area. At
a minimum, these areas will include the Santa Rosa Plateau, San
Mateo Wilderness area of the Cleveland National Forest, Squaw
Mountain, Avenacola Mesa Redondo Mesa, Alamos Canyon, and
surrounding areas. Reserve Managers will determine if
successful reproduction is occurring within the MSHCP
Conservation Area as measured by the presence/absence of
tadpoles, egg masses, or juvenile frogs once a year for the first
5 years after permit issuance and then as determined by the
Reserve Management Oversight Committee (but not less
frequently than every 8 years). The ecological processes and
breeding population(s) will be maintained as a result of
management measures with regard to alteration of hydrology
and flood control, non-native plant species, mining, human
collection, and predation.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-44
(see Amphibian Species Survey Area Map, Figure
6-3 of the MSHCP, Volume I). Red-legged frog
locations identified as a result of survey efforts
shall be conserved in accordance with
procedures described within Section 6.3.2,
MSHCP, Volume I.
Objective 5: Within the MSHCP Conservation Area, Reserve
Managers shall maintain or, if feasible, restore
ecological processes within occupied Habitat and
suitable new areas within the Criteria Area. At a
minimum, these areas will include the Santa
Rosa Plateau, San Mateo Wilderness area of the
Cleveland National Forest, Squaw Mountain,
Avenacola Mesa Redondo Mesa, Alamos
Canyon, and surrounding areas.
Objective 6: Within the MSHCP Conservation Area, determine
if successful reproduction is occurring as
measured by the presence/absence of tadpoles,
egg masses, or juvenile frogs once a year for the
first five years after permit issuance and then as
determined by the Reserve Management
Oversight Committee as described in Section 6.6,
MSHCP Volume I (but not less frequently than
every 8 years).
shall determine if successful reproduction
is occurring as measured by the
presence/ absence of tadpoles, egg
masses, or juvenile frogs once a year for
the first 5 years after permit issuance and
then as determined by the Reserve
Management Oversight Committee (but
not less frequently than every 8 years).
Furthermore, the Area Plan is contiguous
with suitable Habitat in Orange and San
Diego counties.
coast range newt
(Taricha tarosa tarosa)
3 The coast range newt has narrow Habitat requirements
and limited distribution within the Plan Area, typically
being restricted to "pools and runs" stream configurations
and adjacent upland Habitats within the Santa Ana
Mountains Bioregion. Currently, the known distribution of
coast range newt within the Plan Area is restricted to the
Santa Ana Mountains. Because the coast range newt
requires very specific breeding Habitat conditions, only
occurs within a few locations, and uses a well defined
Habitat that is narrowly distributed, this species will
require site specific considerations, protection of primary
breeding Habitat and adjacent upland areas, and
species-specific Conservation measures.
Objective 1: Include within the MSHCP Conservation Area at
least 8,441 acres of primary breeding Habitat
(playa and vernal pools, riparian scrub,
woodland, and forest, and water) within the Santa
Ana Mountains Bioregion. Within the greater
Habitat categories, coast range newt breeding
activities are limited to streams and creeks which
may form "pool and runs" hydrology.
Objective 2: Include within the MSHCP Conservation Area at
least 76,579 acres of the secondary Habitat
(chaparral, coastal sage scrub, grassland,
Riversidean alluvial scrub, and oak woodlands
and forests) within the Santa Ana Mountains
Conservation for the coast range newt will
be achieved by the inclusion of at least
8,441 acres of suitable primary Conserved
Habitat and 76,579 acres of secondary
upland Conserved Habitat within one Core
Area (Santa Ana Mountains Bioregion)
within the MSHCP Conservation Area. The
Core Area provides connections between
seasonally preferred Habitats. In addition,
the MSHCP Plan will maintain a 100-meter
buffer around breeding Habitat areas
identified above; maintain or, if feasible,
restore ecological processes within
occupied Habitat and suitable new areas
Incidental Take of the coast range
newt is difficult to quantify due to our
limited knowledge of the species
distribution within the Plan Area, and
the fact that losses may be masked by
fluctuations in abundance and
distribution during the life of the
permit. However, the maximum level
of Take of the coast range newt can
be anticipated by the loss of the
number of acres of Habitat that will
become unsuitable for this species
and individuals within these areas will
be subject to Incidental Take
None 8 1** General Management Measure 4. Reserve Managers will
maintain ecological processes within occupied Habitat and
appropriate new areas within the MSHCP Conservation Area. At
a minimum, these areas will include the Santa Rosa Plateau, San
Mateo Wilderness area of the Cleveland National Forest, Squaw
Mountain, Avenacola Mesa Redondo Mesa, Alamos Canyon, and
surrounding areas. Reserve Managers will determine if
successful reproduction is occurring within the MSHCP
Conservation Area as measured by the presence/absence of
tadpoles, egg masses, or juvenile frogs once a year for the first
5 years after permit issuance and then as determined by the
Reserve Management Oversight Committee (but not less
frequently than every 8 years). The ecological processes and
breeding population(s) will be maintained as a result of
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-45
Bioregion. Secondary Habitat is limited to a 2 km
buffer around streams and creeks.
Objective 3: A 100-meter buffer, where possible, will be
established around emergent vegetation areas
identified in Objective 1 as they are incorporated
into the MSHCP Conservation Area for water
quality purposes.
Objective 4: Within the MSHCP Conservation Area, Reserve
Managers shall maintain or, if feasible, restore
ecological processes within occupied Habitat and
suitable new areas within the MSHCP
Conservation Area. At a minimum, these areas
will include creeks, streams, ponds, and other
wetland Habitat in the Cleveland National Forest
(Santa Ana Mountains Bioregion) and Santa Rosa
Plateau (includes portions of Cole Creek).
Objective 5: Within the MSHCP Conservation Area, maintain
occupancy of at least 75 percent of the occupied
coast range newt Habitat and determine if
successful reproduction is occurring within the
MSHCP Conservation Area as measured by the
presence/absence of larvae or egg masses once
a year for the first five years after permit issuance
and then as determined by the Reserve
Management Oversight Committee as described
in Section 6.6, MSHCP Volume I (but not less
frequently than every 8 years).
within the MSHCP Conservation Area;
minimally these areas will include creeks,
streams, ponds, and other wetland Habitat
in the Cleveland National Forest (Santa
Ana Mountains Bioregion) and Santa Rosa
Plateau (includes portions of Cole Creek);
and maintain occupancy of at least 75
percent of the occupied Coast range newt
Habitat and determine if successful
reproduction is occurring within the
MSHCP Conservation Area as measured
by the presence/absence of larvae or egg
masses once a year for the first five years
after permit issuance and then as
determined by the Reserve Management
Oversight Committee. The current
population size and distribution of the
coast range newt is unknown.
Furthermore, the Plan Area is contiguous
with suitable Habitat in Orange and San
Diego counties.
c o n s i st e n t w i t h t he P lan.
Approximately 4,011 acres (32
percent) of potential primary breeding
Habitat and 32,069 acres (30 percent)
of secondary upland Habitat for the
coast range newt would be outside the
MSHCP Conservation Area.
management measures with regard to alteration of hydrology
and flood control, non-native plant species, mining, human
collection, and predation.
mountain yellow-legged
frog
(Rana mucosa)
3 The mountain yellow-legged frog has narrow Habitat
requirements and limited distribution within the Plan Area,
typically being restricted to streams, creeks, and small
pools in the San Jacinto Mountains that contain
dependable, year-round quantities of cool water. Within
the Plan Area, yellow-legged frogs have been recently
observed (i.e., within the last 7 years) only in upper
reaches and tributaries of the North Fork of the San
Jacinto River. Specific locations include: Dark Canyon,
Hall Canyon, Fuller Mill Creek, and the North Fork above
Objective 1: Include within the MSHCP Conservation Area at
least 335 acres of primary breeding Habitat
above 370 meters (riparian scrub woodland and
forest) within the San Jacinto Mountains.
Primary breeding Habitat for the yellow-legged
frog includes aquatic Habitats with gently sloping
shore margins that receive some sunlight, and
clear cool water.
Objective 2: Include within the MSHCP Conservation Area the
Conservation for the mountain
yellow-legged frog will be achieved by the
inclusion of at least 335 acres of suitable
Conserved primary and 32,399 acres of
Conserved secondary Habitat within one
Core Area. In addition, surveys for this
species will be conducted as part of the
project review process for public and
private projects within the amphibian
species survey area where suitable Habitat
Approximately 138 acres (29 percent)
of suitable primary breeding Habitat
and 11,459 (26 percent) of potentially
suitable secondary Habitat (11,597
acres total [26 percent]), would be
located outside the MSHCP
Conservation Area and individuals
within these areas will be subject to
Incidental Take consistent with the
Plan.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 1** General Management Measure 4. Reserve Managers will
maintain ecological processes (with particularly emphasis on
removing non-native predatory fish and bullfrogs) within
occupied Habitat and suitable new areas within the MSHCP
Conservation Area. At a minimum, these areas will include
areas above 370 meters at the North Fork of the San Jacinto
River (including Dark Canyon), Fuller Mill Creek, and Hall Canyon
above Lake Fulmor. Reserve Managers will maintain successful
reproduction within the MSHCP Conservation Area as measured
by the presence/absence of tadpoles, egg masses, or juvenile
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-46
Highway 74. Historically, yellow-legged frogs were also
observed in Strawberry Creek, Indian Creek, Black
Mountain Creek, and lower sections of the North Fork of
the San Jacinto River. Because the mountain yellow-
legged frog presently occurs at only a few locations in
very low numbers, requires specific breeding Habitat
conditions, and is narrowly distributed, this species will
require site-specific considerations, protection of primary
breeding Habitat and adjacent upland areas, and species-
specific Conservation measures.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for mountain
yellow-legged frog will be conducted as part of the project
review process for public and private projects within the
amphibian species survey area where suitable Habitat is
present (see Amphibian Species Survey Area Map, Figure
6-3 of the MSHCP, Volume I). Mountain yellow-legged
frog located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.3.2, MSHCP, Volume 1.
Core Areas above 370 meters at the North Fork of
the San Jacinto River (including Dark Canyon),
Hall Canyon, and Fuller Mill Creek and other
perennial water streams in the San Jacinto
Mountains.
Objective 3: Include within the MSHCP Conservation Area at
least 32,399 acres of the secondary wooded
Habitat above 370 meters (oak woodlands and
forests and and montane coniferous forest)
within the North Fork of the San Jacinto River
(including Dark Canyon), Hall Canyon, and Fuller
Mill Creek and other perennial water streams in
the San Jacinto Mountains.
Objective 4: Surveys for this species will be conducted as part
of the project review process for public and
private projects within the amphibian species
survey area where suitable Habitat is present
(see Amphibian Species Survey Area Map, Figure
6-3 of the MSHCP, Volume I). Mountain
yellow-legged frog localities identified as a result
of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2, MSHCP, Volume 1.
Objective 5: Within the MSHCP Conservation Area, Reserve
Managers shall maintain or, if feasible, restore
ecological processes (with particular emphasis
on removing non-native predatory fish and
bullfrogs) within occupied Habitat and suitable
new areas within the Criteria Area. At a
minimum, these areas will include areas above
370 meters at the North Fork of the San Jacinto
River (including Dark Canyon), Fuller Mill Creek,
and Hall Canyon above Lake Fulmor.
Objective 6: Within the MSHCP Conservation Area, maintain
successful reproduction as measured by the
presence/absence of tadpoles, egg masses, or
juvenile frogs once a year for the first five years
is present (see Amphibian Species Survey
Area Map, Figure 6-3 of the MSHCP,
Volume I). Mountain yellow-legged frog
localities identified as a result of survey
efforts shall be conserved in accordance
with procedures described within Section
6.3.2, MSHCP, Volume 1. Within the
MSHCP Conservation Area, Reserve
Managers shall maintain or, if feasible,
restore ecological processes (with
particularly emphasis on removing
non-native predatory fish and bullfrogs)
within occupied Habitat and suitable new
areas. At a minimum, these areas will
include areas above 370 meters at the
North Fork of the San Jacinto River
(including Dark Canyon), Fuller Mill Creek,
and Hall Canyon above Lake Fulmor.
Within the MSHCP Conservation Area,
Reserve Managers shall maintain
successful reproduction as measured by
the presence/absence of tadpoles, egg
masses, or juvenile frogs once a year for
the first 5 years after permit issuance and
then as determined by the Reserve
Management Oversight Committee (but
not less frequently than every 8 years).
Furthermore, the Plan Area is contiguous
with suitable Habitat in eastern Riverside,
San Bernardino, and San Diego counties.
frogs once a year for the first 5 years after permit issuance and
then as determined by the Reserve Management Oversight
Committee (but not less frequently than every 8 years). The
ecological processes and breeding population(s) will be
maintained as a result of management measures with regard to
alteration of water quality and predation.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-47
after permit issuance and then as determined by
the Reserve Management Oversight Committee
as described in Section 6.6 (but not less
frequently than every 8 years).
western spadefoot
(Scaphiopus hammondii)
2 The western spadefoot population is patchily but widely
distributed throughout the Riverside Lowlands and San
Jacinto Foothills Bioregions. Primary Habitat for this
species includes suitable breeding Habitat below 1500
meters (i.e.,vernal pools or other standing water that is
free of exotic species) with secondary Habitats including
adjacent chaparral, sage scrub, grassland, and alluvial
scrub Habitats. It is assumed that this species will
respond to a landscape level of management with site-
specific requirements (e.g., vernal pools) if management
addresses the threats of increased roads (limit roads or
provide toad walls and culverts for safe dispersal), exotic
species (e.g., bass, sunfish, and bullfrogs), and
destruction of Habitat. Management of Habitat for a wide
variety of upland species such as the Stephens’ kangaroo
rat, Los Angeles pocket mouse, and a variety of vernal
pool-associated plants and invertebrates will benefit the
western spadefoot.
Objective 1: Include within the MSHCP Conservation Area
approximately 6,749 acres of primary Habitat for
the western spadefoot. Suitable primary Habitat
is limited to playas and vernal pools below 1,500
meters within chaparral, sage scrub, grassland,
and alluvial scrub Habitats.
Objective 2: Include within the MSHCP Conservation Area at
least six Core Areas at the Santa Rosa Plateau
(8,360 acres), San Jacinto River (7,680 acres),
Salt Creek (320 acres), Skunk Hollow (approx. 10
acres), and Hemet (approx. 100 acres) areas.
Conserve additional breeding Habitat in the form
of isolated pools, road ruts, or creeks at Lake
Skinner -Diamond Va l ley Lake, Lake
Mathews-Estelle Mountain, San Jacinto Wildlife
Area-Lake Perris, the Badlands, Potrero Valley,
the Banning Bench, Sage/Vail Lake, San Jacinto
Mountains, and Anza Valley.
Objective 3: Include within the MSHCP Conservation Area at
least 377,183 acres of suitable secondary Habitat
adjacent to protected primary Habitat. Suitable
secondary Habitat includes chaparral,
grasslands, sage scrub, and alluvial scrub
Habitats below 1,500 meters. These Habitats will
be preserved throughout the Plan Area in large
blocks representing all portions of the Plan Area.
The majority of Habitat Conservation will occur in
large core blocks throughout the Plan Area,
including Santa Rosa Plateau, Lake
Skinner-D iamond Val ley Lake, Lake
Mathews-Estelle Mountain, San Jacinto Wildlife
Area-Lake Perris, the Badlands, Potrero Valley,
the Banning Bench, Sage/Vail Lake,San Jacinto
Mountains, and Anza Valley. These areas are
anticipated to fulfill the remaining life history
Conservation for the western spadefoot
will be achieved by the inclusion of at least
6,749 acres of suitable primary Conserved
Habitat and 377,183 acres of suitable
secondary Habitat within the San Jacinto
Foothills and Riverside Lowlands
Bioregions below 1,500 meters within the
MSHCP Conservation Area. The Core
Areas are provided with numerous
connections of Proposed and Existing
Cores. In addition, the MSHCP Plan will
maintain (once every 8 years) successful
reproduction at 75 percent of the Core
Areas. The current population size of the
western spadefoot is unknown, but the
general distribution is, and a relatively
sizable database is present within the UCR
database. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside, San Bernardino, Orange, and
San Diego counties.
Approximately 1,162 acres (15
percent) of potential primary Habitat
and 314,381 acres (45 percent) of
secondary Habitat for the western
spadefoot would be outside the
MSHCP Conservation Area and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Fifteen (48 percent) of
the 31 precision code "1" or "2"
records would be outside the MSHCP
Conservation Area. However of these,
2 (13 percent) are mapped within
existing agriculture and 5 (33 percent)
are located in developed or disturbed
Habitat coverages.
None 8 8 General Management Measure 4. Reserve Managers will
maintain or improve Habitat quality at all locales within the
MSHCP Conservation Area by preserving the watersheds and
hydrological processes within the vernal pools, temporary
ponds, and drainages that support the potential Habitat and by
selectively rehabilitating or revegetating all such areas that are
currently fragmented or otherwise degraded by, for instance,
infestations of exotic plants and animals. Each Reserve
Manager responsible for a Core Area identified in the Species
Account will evaluate the condition of the sites and vegetation
within the Core Areas and maintain a program to enhance and/or
create primary Habitats within the Core Areas. Reserve
Managers will maintain successful reproduction at a minimum
of 75% of the conserved breeding locations as measured by the
presence/absence of tadpoles, egg masses, or juvenile toads
once every 8 years. The hydrological processes and breeding
population(s) will be maintained as a result of management
measures with regard to alteration of hydrology, non-native plant
species, farming, mining, grazing, off-road vehicle use and
predation.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-48
requirements of the species including aestivating,
dispersing, and foraging Habitat.
Objective 4 : Within the MSHCP Conservation Area, maintain
successful reproduction at a minimum of 75
percent of the conserved breeding locations as
measured by the presence/absence of tadpoles,
egg masses, or juvenile toads once every 8
years.
REPTILES
Belding’s orange-throated
whiptail
(Cnemidophorus
hyperythrus beldingi)
1 The Belding's orange-throated whiptail population is
widespread throughout the Plan Area. The
orange-throated whiptail occurs in a wide variety of
Habitats but is more closely tied to coastal sage scrub
and chaparral Habitats with less than 90 percent
vegetative cover. The species is common in most areas
of the Plan Area within the central basin and foothills
areas. No specific management regimes are needed to
maintain adequate Habitat for this species, although
management of Habitat for species such as the Stephens'
kangaroo rat, San Bernardino kangaroo rat, and Los
Angeles pocket mouse may benefit the orange-throated
whiptail.
Objective 1: Include within the MSHCP Conservation Area at
least 226,313 acres of coastal sage scrub, desert
scrub, chaparral, Riversidean alluvial fan sage
scrub, and riparian scrub and woodlands within
the Riverside lowlands, San Jacinto Foothills, and
Santa Ana Mountains Bioregions below 1,040
meters. The majority of Habitat Conservation will
occur in large core blocks throughout the Plan
Area.
Objective 2: Include within the MSHCP Conservation Area at
least nine Core Areas including Santa Rosa
Plateau (8,360 acres), Lake Skinner-Diamond
Val ley Lake (29,070 acres) , Lake
Mathews-Estelle Mountain (31,180 acres), San
Jacinto Wildlife Area-Lake Perris (17,470 acres),
the Badlands (24,920 acres), Potrero Valley
(10,000 acres), the Banning Bench (9,610
acres), Sage/Vail Lake (50,000 acres), and Anza
Valley (4,290 acres) and numerous smaller
Proposed and Existing Noncontiguous Habitat
Blocks.
Conservation for the orange-throated
whiptail will be achieved by the inclusion
of at least 226,313 acres of suitable
Conserved Habitat within 9 Core Areas
which are composed of large blocks of
Habitat within the MSHCP Conservation
Area. The Core Areas are provided with
numerous connections of Proposed and
Existing Cores. In addition, the MSHCP
Plan will maintain (once every 8 years) the
continued use of 75 percent of the Core
Areas. The current population size of the
orange-throated whiptail is unknown, but
the general distribution is, and a relatively
sizable database is present within the UCR
database. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside, San Bernardino, Orange, and
San Diego counties.
Approximately 155,483 acres (41
percent) of potential Habitat for the
orange-throated whiptail would be
outside the MSHCP Conservation Area
and individuals within these areas will
be subject to Incidental Take
c o n s i st e n t w i t h the P l a n .
Seventy-seven (55 percent) of the 140
precision code "1" or "2" records
would be outside the MSHCP
Conservation Area. However, of
these, 16 are mapped within existing
agriculture and 22 are located in
developed, disturbed land, or water
categories. The remaining 39 (51
percent) are in native Habitats.
None 8 General Management Measures 1, 3 and 4.
coastal western whiptail
(Cnemidophorus tigris
multiscutatus)
1 The coastal western whiptail population is widespread
throughout the Plan Area. The coastal western whiptail
occurs in a wide variety of Habitats including coastal sage
scrub, desert scrub, Riversidean alluvial fan scrub,
woodlands, grasslands, playas, and respective ecotones
between these Habitats. The species is common in most
areas of the Plan Area, including the fringes of urbanized
areas. Existing data suggests it may occur at all elevation
Objective 1: Include within the MSHCP Conservation Area at
least 142,117 acres of coastal sage scrub, desert
scrub, Riversidean alluvial fan scrub, woodlands,
grasslands, and playas. The majority of Habitat
Conservation will occur in large blocks within the
Plan Area.
Conservation for the western whiptail will
be achieved by the inclusion of at least
142,117 acres of suitable Conserved
Habitat within 13 Core Areas which are
composed of large blocks of Habitat within
the MSHCP Conservation Area. The Core
Areas are provided with numerous
connections of Proposed and Existing
Approximately 182,962 acres (56
percent) of potential Habitat for the
western whiptail would be outside the
MSHCP Conservation Area and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Thirty-six (67 percent)
of the 54 precision code "1" or "2"
None 8 General Management Measure 1.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-49
levels within the Plan Area. No specific management
regimes are needed to maintain this species, although
management of Habitat for species such as the California
gnatcatcher, Stephens' kangaroo rat, San Bernardino
kangaroo rat, and Los Angeles pocket mouse may benefit
the coastal western whiptail.
Objective 2: Include within the MSHCP Conservation Area at
least 13 Core Areas at the Santa Rosa Plateau
(8,360 acres), Lake Skinner-Diamond Valley Lake
(29,020 acres), Lake Mathews-Estelle Mountain
(31,180 acres), San Jacinto Wildlife Area-Lake
Perris (17,470 acres), the Badlands (24,920
acres), Potrero Valley (10,000 acres), the
Banning Bench (9,610 acres), Sage/Vail Lake
(50,000 acres), Anza Valley (4,290 acres), Agua
Tibia Wilderness (10,460 acres), Santa Ana
Mountain foothills (71,490 acres), Santa Ana
River (10,740 acres) , and Paloma
Valley/Hogbacks (5,050 acres).
Objective 3: Include within the MSHCP Conservation Area
Linkages between large Habitat areas, including
contiguous uplands from Estelle Mountain to
Wildomar, Gavilan Hills, San Jacinto River, Kolb
Creek/Arroyo Seco, Temecula Creek, Tucalota
Creek, Wilson Creek, Tule Creek, and San
Gorgonio Wash.
Cores. In addition, the MSHCP Plan will
maintain (once every 8 years) the
continued use of 75 percent of the Core
Areas. The current population size of the
western whiptail is unknown, but the
general distribution is, and a relatively
sizable database is present within the UCR
database. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside, San Bernardino, Orange, and
San Diego counties.
records would be outside the MSHCP
Conservation Area. However of these,
16 (44 percent) are mapped within
existing agriculture, 6 (17 percent) are
located in developed or disturbed
Habitat coverages, and 14 (39
percent) are in chaparral, coastal sage
scrub, woodlands and forests, and
non-native grassland Habitats.
granite night lizard
(Xantusia henshawi
henshawi)
2 Granite night lizards occur in localized populations
distributed east of Interstate 215, but primarily within the
eastern portion of the Plan Area. Localized populations
are often found in flaking granite, rock outcrops, and
boulderfields, most commonly with chaparral, sage
scrub, mixed conifer forest, and oak woodland. Though
they primarily occupy these features, granite night lizards
have been documented in outlying Habitat. No specific
management regimes have been identified to maintain
adequate Habitat for this species. Because granite night
lizards occur in localized conditions and secretive and
difficult to detect, it will require some site specific
management or monitoring activities.
Objective 1: Include within the MSHCP Conservation Area at
least 297,143 acres of chaparral, sage scrub,
coniferous forest, and oak woodland in the
eastern portion of the Plan Area (east of Interstate
215). Acreage conserved will include Linkages
between conserved areas, and the rocky
outcrops, flaking granite, and boulderfields that
are a limiting Habitat feature for this species.
Objective 2: Include within the MSHCP Conservation Area at
least 9 Core Areas at the Lake Skinner-Diamond
Valley Lake (29,070 acres), San Jacinto Wildlife
Area-Lake Perris (17,470 acres), the Badlands
(24,920 acres), Potrero Valley (10,000 acres),
the Banning Bench (9,610 acres), Sage/Vail
Lake/Wilson Valley (50,000 acres), Agua Tibia
Mountains (10,460 acres), San Jacinto
Mountains (140,000 acres), and Anza Valley
(4,290 acres).
Conservation for the granite night lizard
will be achieved by the inclusion of at least
297,143 acres of suitable Conserved
Habitat within 9 Core Areas which are
composed of large blocks of Habitat
distributed throughout the MSHCP
Conservation Area and the species range
within the Plan Area. In addition, the
MSHCP Plan will maintain (once every 8
years) the continued use of 75 percent of
the Core Areas. Although the current
population size of the granite night lizard is
unknown, the general distribution is
known. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside, San Bernardino, Orange, and
San Diego counties.
The Incidental Take of the granite night
lizard is difficult to quantify due to our
limited knowledge of the species
distribution within the Plan Area and
the fact that losses may be masked by
natural fluctuations in abundance and
distribution during the life of the
permit. However, the maximum level
of Take for this species can be
anticipated by the loss of the number
of acres of Habitat that will become
unsuitable for the species.
Approximately 197,038 acres (40
percent) of potential Habitat for the
granite night lizard would be outside
the MSHCP Conservation Area and
individuals within this Habitat will be
subject to Take consistent with the
Plan. Twenty-eight (74 percent) of the
47 precision code "1" or "2" records
None 8 Reserve Managers will manage the known and future
occurrences of this species with regard to Habitat destruction,
agriculture, predation and harassment by cats and dogs, brush
management and collecting.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-50
would be outside the MSHCP
Conservation Area. However of these,
5 (18 percent) are mapped within
existing developed or disturbed land
coverages. The remaining 23 (82
percent) are in natural Habitats.
granite spiny lizard
(Sceloporus orcutti)
1 The granite spiny lizard population is widespread
throughout the Plan Area. The granite spiny lizard occurs
in a wide variety of Habitats but is restricted to granite
outcrops and boulder fields. The species is common in
most areas of the Plan Area where granite outcrops and
boulder fields occur and is well distributed throughout,
occurring at all elevation levels. No specific management
regimes are needed to maintain adequate Habitat for this
species, although management of Habitat for a wide
variety of upland species such as the California
gnatcatcher, Stephens' kangaroo rat, forest species, Los
Angeles pocket mouse may benefit the granite spiny
lizard, where the managed species co-occur with granite
outcrops and boulder fields.
Objective 1: Include within the MSHCP Conservation Area
granite outcrops and boulder fields within at least
408,216 acres of chaparral, coastal sage scrub,
desert scrub, Riversidean alluvial fan sage scrub,
pinyon juniper scrub, montane coniferous forest,
and woodlands and forests in large blocks
throughout the Plan Area.
Objective 2: Include within the MSHCP Conservation Area at
least 12 Core Areas at the Santa Rosa Plateau
(8,360 acres), Lake Skinner-Diamond Valley Lake
(29,070 acres), Lake Mathews-Estelle Mountain
(31,180 acres), San Jacinto Wildlife Area-Lake
Perris (17,470 acres), the Badlands (24,920
acres), Potrero Valley (10,000 acres), the
Banning Bench (9,610 acres), Sage/Vail Lake
(50,000 acres), Aqua Tibia Mountains (10,460
acres), San Jacinto Mountains (140,000 acres),
Santa Ana Mountains (71,490 acres), and Anza
Valley (4,290 acres).
Conservation for the granite spiny lizard
will be achieved by the inclusion of at least
408,216 acres of suitable Conserved
Habitat within 12 Core Areas which are
composed of large blocks of Habitat within
the MSHCP Conservation Area. In
addition, the MSHCP Plan will maintain
(once every 8 years) the continued use of
75 percent of the Core Areas. The current
population size of the granite spiny lizard
is unknown, but the general distribution is,
and a relatively sizable database is present
within the UCR database. Furthermore,
the Plan Area is contiguous with suitable
Habitat in eastern Riverside, San
Bernardino, Orange, and San Diego
counties.
Approximately 237,637 acres (37
percent)of potential Habitat for the
granite spiny lizard would be outside
the MSHCP Conservation Area and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Seventy (68 percent) of
the 103 precision code "1" or "2"
records would be outside the MSHCP
Conservation Area. However of these,
13 (19 percent) are mapped within
existing agriculture and 18 (26
percent) are located in developed or
disturbed Habitat coverages. The
remaining 39 (56 percent) are in
natural Habitats.
None 8 General Management Measure 1.
northern red-diamond
rattlesnake
(Crotalus ruber ruber)
2 The northern red-diamond rattlesnake is widely distributed
throughout the Plan Area. Data collected for this species
shows a patchy distribution within the Plan Area without
clearly defined Core Areas. The red-diamond rattlesnake
is often found in areas with dense vegetation especially
chaparral and sage scrub up to 1,520 meters in elevation.
There are no definable Core Areas for this species. It is
anticipated that this species will respond to a landscape
level of management with site-specific requirements (e.g.,
hibernacula).
Objective 1: Include within the MSHCP Conservation Area at
least 338,672 acres of chaparral and sage scrub
within the Plan Area below 1,520 meters.
Acreage conserved include large core blocks
within the MSHCP Conservation Area
representing a wide range of elevations.
Objective 2: Include within the MSHCP Conservation Area at
least 10 Core Areas at the Santa Ana Mountains
(71,490 acres), Agua Tibia Mountains (10,460
acres), San Jacinto Mountains (140,000 acres),
Lake Skinner-Diamond Valley Lake (29,070
acres), Lake Mathews-Estelle Mountain (31,180
acres), San Jacinto Wildlife Area-Lake Perris
(17,470 acres), the Badlands (24,920 acres),
Conservation for the northern red-diamond
rattlesnake will be achieved by the
inclusion of at least 338,672 acres of
suitable Conserved Habitat within 12 Core
Areas which are composed of large blocks
of Habitat within the MSHCP Conservation
Area. The Core Areas are provided with
numerous connections of Proposed and
Existing Cores. In addition, the MSHCP
Plan will maintain (once every 8 years) the
continued use of 75 percent of the Core
Areas. The current population size of the
red-diamond rattlesnake is unknown, but
the general distribution is, and a relatively
sizable database is present within the UCR
The Incidental Take of northern
red-diamond rattlesnake is difficult to
quantify due to our limited knowledge
of the species distribution within the
Plan Area and the fact that losses may
be masked by fluctuations in
abundance and distribution during the
life of the permit. However, the
maximum level of Take of the northern
red-diamond rattlesnake can be
anticipated by the loss of the number
of acres of Habitat that will become
unsuitable for this species.
Approximately 214,769 acres (39
percent) of potential Habitat for the
None 8 Reserve Managers will manage the known and future
occurrences of this species with regard to off-road vehicle
activity, brush management activities, predation by domestic
animals and road kills.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-51
Potrero Valley (10,000 acres), the Banning Bench
(9,610 acres), Sage/Vail Lake (50,000 acres),
and Anza Valley (4,290 acres).
Objective 3: Include within the MSHCP Conservation Area
Linkages between Core Areas (including
hibernacula that are a limiting Habitat feature for
this species). Connections between the Core
Areas will be facilitated by upland and riparian
connections from Estelle Mountain to Wildomar,
Gavilan Hills, San Jacinto River, Kolb
Creek/Arroyo Seco, Temecula Creek, Tucalota
Creek, Wilson Creek, Tule Creek, and San
Gorgonio Wash.
database. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside, San Bernardino, Orange, and
San Diego counties.
northern red-diamond rattlesnake
would be outside the MSHCP
Conservation Area and individuals
within these areas will be subject to
Incidental Take consistent with the
Plan. Thirty-two (62 percent) of the
52 precision code "1" or "2" records
would be outside the MSHCP
Conservation Area. However, of
these, 6 (19 percent) are mapped
within existing agricultural areas and 9
(28 percent) are mapped in
residential/urban/exotic/pond areas.
San Bernardino mountain
kingsnake
(Lampropeltis zonata
parvirubra)
2 The mountain kingsnake populations are narrowly defined
within the Plan Area. The San Diego Mountain kingsnake
is only known to occur within the Santa Ana Mountains,
Aqua-Tibia Mountains, and Desert Transition Bioregions
above 500 meters in elevation (Fisher and Case, 1997).
The San Bernardino mountain kingsnake is only known to
occur within the San Bernardino Mountains and San
Jacinto Mountains bioregions above 1,500 meters (Fisher
and Case, 1997). Both species are restricted to rock
outcrops, talus, and steep shady canyons within
coniferous and mixed coniferous, hardwood, or riparian
woodlands and other edge Habitats when associated with
coniferous Habitat. It is anticipated that these species'
will respond to a landscape level of management.
Because the San Diego and San Bernardino mountain
kingsnakes are largely restricted to US Forest Service
lands, coverage is dependent on management
commitments from the US Forest Service.
Objective 1: Include within the MSHCP Conservation Area at
least 22,159 acres of montane coniferous forest,
deciduous woodlands and forest, riparian scrub,
woodland, and forest between above 1500
meters in elevation within the San Jacinto
Mountains and San Bernardino Mountains
Bioregions for the San Bernardino mountain
kingsnake.
Conserved Habitat will include Linkages between
conserved areas.
Objective 2: Include within the MSHCP Conservation Area
suitable microHabitat (e.g., rock outcrops, talus,
and steep shady canyons) within coniferous and
mixed coniferous, hardwood, or riparian
woodlands.
Conservation for the San Bernardino
mountain kingsnake will be achieved by
the inclusion of at least 22,159 acres of
suitable Conserved Habitat within 2 Core
Areas which are composed of large blocks
of Habitat within the MSHCP Conservation
Area. In addition, the MSHCP Plan will
maintain (once every 8 years) the
continued use of 75 percent of the Core
Areas. Furthermore, the Plan Area is
contiguous with suitable Habitat in San
Bernardino County.
Approximately 7,571 acres (26
percent) of potential Habitat for the
San Bernardino mountain kingsnake
would be outside the MSHCP
Conservation Area and individuals
within these areas will be subject to
Incidental Take consistent with the
Plan.
None 8 Reserve Managers will manage the known and future
occurrences of this species with regard to logging and firewood
harvesting, removal of rock outcrops and ground debris and
human collection.
San Diego banded gecko
(Coleonyx variegatus
abbottii)
2 The San Diego banded gecko population is patchily but
widely distributed throughout the Riverside Lowlands and
San Jacinto Foothills Bioregions. The San Diego banded
gecko occurs in a wide variety of sage scrub and
chaparral Habitats, where suitable cover exists associated
with granitic outcrops and boulder fields where there is
also ground debris (i.e., yucca stalks). There are no
definable key or core populations for this species within
the Plan Area. Because it requires scattered to extensive
Objective 1: Include within the MSHCP Conservation Area at
least 147,066 acres of sage scrub and chaparral
below 1,520 meters in elevation in large core
blocks within the Riverside Lowlands and San
Jacinto Foothills Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 7 Core Areas at the San Jacinto foothills
(149,750 acres), Lake Skinner-Diamond Valley
Conservation for the San Diego banded
gecko will be achieved by the inclusion of
at least 147,066 acres of suitable
Conserved Habitat within 7 Core Areas
which are composed of large blocks of
Habitat within the MSHCP Conservation
Area. The Core Areas are provided with
numerous connections of Proposed and
Existing Cores. In addition, the MSHCP
Approximately 125,771 acres (46
percent) of potential Habitat for the
San Diego banded gecko would be
outside the MSHCP Conservation Area
and individuals within these areas will
be subject to Incidental Take
consistent with the Plan. Six (40
percent) of the 15 precision code "1"
or "2" records would be outside the
None 8 Reserve Managers will manage the San Diego banded gecko
within Core Areas for this species with regard to illegal
collecting, Habitat destruction (including dirt road and trail
construction), artificial lighting, non-native predators,
introduction of exotic grasses, and off-road vehicle usage.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-52
exfoliated rocky outcrops with weathered, well-drained,
coarse to rocky sandy loam soil, and healthy, mature
sage scrub and chaparral Habitat with an open
understory, the San Diego banded gecko will require
site-specific considerations and management conditions.
Lake (29,070 acres), Lake Mathews-Estelle
Mountain (31,180 acres), San Jacinto Wildlife
Area-Lake Perris (17,470 acres), the Badlands
(24,920 acres), Santa Ana Mountains (71,490
acres), and Sage/Vail Lake (50,000 acres).
Connections between these blocks will be
facilitated by upland and riparian connections
from Estelle Mountain to Wildomar, Gavilan Hills,
San Jacinto River, Temecula Creek, and Tucalota
Creek.
Objective 3: Include within the MSHCP Conservation Area
suitable microHabitat (e.g., exfoliating granite
outcrops, boulderfields, ground debris, yucca
stems) within the general Habitats to maintain
areas for daily cover, hibernation and
reproduction purposes.
Plan will maintain (once every 8 years) the
continued use of 75 percent of the Core
Areas. The current population size and
distribution of the San Diego banded
gecko is unknown, however the Plan Area
is contiguous with suitable Habitat in
eastern Riverside, San Bernardino,
Orange, and San Diego counties.
MSHCP Conservation Area. However
of these, 1 (17 percent) are mapped
within existing agriculture and 1 (17
percent) are located in developed or
disturbed Habitat coverages.
San Diego horned lizard
(Phrynosoma coronatum
blainvillei)
1 The San Diego horned lizard population is widespread
throughout the Plan Area. The horned lizard occurs
primarily in scrub, chaparral, and grassland Habitats. The
species is common in most areas of the Plan Area except
where adjacent to urban situations. No specific
management regimes are needed to maintain this
species, although management of Habitat for species
such as the California gnatcatcher, Stephens' kangaroo
rat, San Bernardino kangaroo rat, and Los Angeles pocket
mouse may benefit the horned lizard.
Objective 1: Include within the MSHCP Conservation Area at
least 407,036 acres of scrub, chaparral, woodland
and grassland Habitat. The majority of Habitat
Conservation will occur in large blocks within the
Plan Area.
Objective 2: Include within the MSHCP Conservation Area at
least 13 Core Areas at the Santa Rosa Plateau
(8,360 acres), Lake Skinner-Diamond Valley Lake
(29,070 acres), Lake Mathews-Estelle Mountain
(31,180 acres), San Jacinto Wildlife Area-Lake
Perris (17,470 acres), the Badlands (24,920
acres), Potrero Valley (10,000 acres), the Banning
Bench (9,610 acres), Sage/Vail Lake (50,000
acres), Anza Valley (4,290 acres), Agua Tibia
Wilderness (10,460 acres), Paloma Valley/
Hogbacks (5,050 acres), Santa Ana Mountain
foothills (71,490 acres), and Santa Ana River
(10,740 acres).
Conservation for the San Diego horned
lizard will be achieved by the inclusion of
at least 407,036 acres of suitable
Conserved Habitat within 13 Core Areas
which are composed of large blocks of
Habitat within the MSHCP Conservation
Area. The Core Areas are provided with
numerous connections of Proposed and
Existing Cores. In addition, the MSHCP
Plan will maintain (once every 8 years) the
continued use of 75 percent of the Core
Areas. The current population size of the
horned lizard is unknown, but the general
distribution is, and a relatively sizable
database is present within the UCR
database. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside, San Bernardino, Orange, and
San Diego counties.
Approximately 322,536 acres (44
percent) of potential Habitat for the
San Diego horned lizard would be
outside the MSHCP Conservation Area
and individuals within these areas will
be subject to Incidental Take
c o n s i st e n t w i th the P la n .
Seventy-eight (56 percent) of the 135
precision code "1" or "2" records
would be outside the MSHCP
Conservation Area. However of these,
9 (12 percent) are mapped within
existing agriculture and 20 (26
percent) are located in developed or
disturbed Habitat coverages.
Forty-nine (63 percent) are in
chaparral, coastal sage scrub,
woodlands and forests, and
non-native grassland Habitats.
None 8 General Management Measures 1, 3 and 4.
San Diego mountain
kingsnake
(Lampropeltis zonata
pulchra)
2 The mountain kingsnake populations are narrowly defined
within the Plan Area. The San Diego mountain kingsnake
is only known to occur within the Santa Ana Mountains,
Aqua-Tibia Mountains, and Desert Transition Bioregions
above 500 meters in elevation (Fisher and Case, 1997).
Objective 1: Include within the MSHCP Conservation Area at
least 7,708 acres of montane coniferous forest,
deciduous woodlands and forest, riparian scrub,
woodland, and forest above 500 meters in elevation
within the Santa Ana Mountains, Agua-Tibia
Conservation for the San Diego mountain
kingsnake will be achieved by the
inclusion of at least 7,708 acres of
suitable Conserved Habitat within 3 Core
Areas which are composed of large blocks
Approximately 2,723 acres (26
percent) of potential Habitat for the
San Diego mountain kingsnake would
be outside the MSHCP Conservation
Area and individuals within these
None 8 Reserve Managers will manage the known and future
occurrences of this species with regard to logging and firewood
harvesting, removal of rock outcrops and ground debris, and
human collection.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-53
The San Bernardino Mountain kingsnake is only known to
occur within the San Bernardino Mountains and San
Jacinto Mountains bioregions above 1,500 meters (Fisher
and Case, 1997). Both species are restricted to rock
outcrops, talus, and steep shady canyons within
coniferous and mixed coniferous, hardwood, or riparian
woodlands and other edge Habitats when associated with
coniferous Habitat. It is anticipated that these species'
will respond to a landscape level of management.
Because the San Diego and San Bernardino mountain
kingsnakes are largely restricted to US Forest Service
lands, coverage is dependent on management
commitments from the US Forest Service.
Mountains, and Desert Transition Bioregions for the
San Diego mountain kingsnake.
Conserved Habitat will include Linkages between
conserved areas.
Objective 2: Include within the MSHCP Conservation Area
suitable microHabitat (e.g., rock outcrops, talus,
and steep shady canyons) within coniferous and
mixed coniferous, hardwood, or riparian
woodlands.
of Habitat within the MSHCP Conservation
Area. In addition, the MSHCP Plan will
maintain (once every 8 years) the
continued use of 75 percent of the Core
Areas. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside and San Diego counties.
areas will be subject to Incidental Take
consistent with the Plan.
southern rubber boa
(Charina bottae
umbratica)
2 The southern rubber boa population is narrowly defined
within the San Jacinto Mountains. The rubber boa is often
found in fallen debris, rock piles, and steep, rocky
montane areas within coniferous forests, woodlands,
chaparral, and grasslands above 1,540 meters in
elevation. It is assumed that this species will respond to
a landscape level of management with site-specific
requirements (i.e., fallen debris, rock piles) if
management addresses the threats of development,
firewood harvesting, poaching, off-road vehicle use, fern
harvesting, commercial timber harvesting, fire
management, and land exchanges.
Objective 1: Include within the MSHCP Conservation Area at
least 2,577 acres of chaparral, grassland, montane
coniferous forest, deciduous woodlands, and forest
above 1,540 meters in elevation within the Plan
Area. Conserved Habitat will include both Linkages
between conserved areas and the fallen debris and
rock piles that are a limiting Habitat feature for this
species. Habitat conserved for this species will be
limited to large blocks within the San Jacinto
Mountains.
Conservation for the southern rubber boa
will be achieved by the inclusion of at least
2,577 acres of suitable Conserved Habitat
within one Core Area (San Jacinto
Mountains) within the MSHCP
Conservation Area. The Core Area
provides connections between seasonally
preferred Habitats. In addition, the
MSHCP Plan will maintain (once every 8
years) the continued use of 75 percent of
the Core Areas. The current population
size and distribution of the southern
rubber boa is unknown. Furthermore, the
Plan Area is contiguous with suitable
Habitat in eastern Riverside, San
Bernardino, and San Diego counties.
Incidental Take of the southern rubber
boa is difficult to quantify due to our
limited knowledge of the species
distribution within the Plan Area and
the fact that losses may be masked by
fluctuations in abundance and
distribution during the life of the
permit. However, the maximum level
of Take of the southern rubber boa can
be anticipated by the loss of the
number of acres of Habitat that will
become unsuitable for this species,
and individuals within these areas will
be subject to Incidental Take
con s i s t en t w i t h the P lan.
Approximately 155 acres (5 percent)
of potential Habitat for the southern
rubber boa would be outside the
MSHCP Conservation Area.
None 8 Reserve Managers will manage this species in order to maintain
sufficient suitable microHabitat sites (i.e., fallen debris, rock
piles) within the general Habitats. Particular management
emphasis will be given with regard to fire and fire suppression,
logging and firewood harvesting, fern harvesting, commercial
timber harvesting and Habitat fragmentation.
southern sagebush lizard
(Sceloporus graciosus
vandenburgianus)
2 For purposes of this analysis, the southern sagebrush
lizard population is found within the San Jacinto and
Santa Rosa Mountains above 5,000 feet. The sagebrush
lizard occurs primarily in open montane areas with good
light and scattered low bushes. Habitats in which it is
found includes montane chaparral, sage brush, hardwood
and conifer forests and woodlands and juniper
Objective 1: Include within the MSHCP Conservation Area at
least 41,105 acres of chaparral, coastal sage scrub,
desert sage scrub, montane coniferous forest,
peninsular juniper woodland, and woodlands and
forest Habitats above 1,500 meters in elevation in
the San Jacinto and Santa Rosa Mountains
bioregions. Conserved Habitat will include both
Conservation for the southern sagebrush
lizard will be achieved by the inclusion of
at least 41,105 acres of suitable
Conserved Habitat within the San Jacinto
and Santa Rosa Mountains above 1,500
meters. In addition, the MSHCP Plan will
maintain (once every 8 years) the
Approximately 10,246 acres (20
percent) of potential Habitat for the
sagebrush lizard would be outside the
MSHCP Conservation Area and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Eleven (42 percent) of
None 8 Reserve Managers will manage this species in order to maintain
sufficient suitable microHabitat sites (i.e., fallen debris, rock
piles) within the general Habitats. Particular management
emphasis will be given with regard to fire and fire suppression,
off-road vehicle use, catastrophic fire, invasive species, human
collection, predation and harassment by cats and dogs, and
local isolation of populations.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-54
woodlands. It is anticipated that this species will respond
to a landscape level of management with site-specific
requirements (i.e., fallen debris and rock piles) if
management addresses the threats of catastrophic fire,
off-road vehicle usage, road construction, and Habitat
destruction.
Linkages between conserved areas and the fallen
debris and rock piles that are a limiting Habitat
feature for this species. Habitat conserved for this
species will be limited to large blocks within the San
Jacinto Mountains.
Objective 2: Include within the MSHCP Conservation Area
suitable microHabitat sites (e.g., fallen debris and
rock piles) within the general Habitats.
continued use of 75 percent of the Core
Areas. The current population size and
distribution of the sagebrush lizard is
unknown, but key Habitat areas are
known. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside, San Bernardino, and San Diego
counties.
the 26 precision code "1" or "2"
records would be outside the MSHCP
Conservation Area.
western pond turtle
(Clemmys marmorata
pallida)
3 The western pond turtle has narrow Habitat requirements
and potentially limited distribution within the Plan Area,
typically being restricted to slow moving permanent or
intermittent streams, small ponds, small lakes, reservoirs,
and other long term water deposits, where abundant
cover is available. The pond turtle may also use adjacent
uplands up to 2 km from water bodies. Currently, the
species is known from throughout the Plan Area, but key
areas appear to be at the confluence of Temecula Creek
and Murrieta Creek, Santa Ana River, Santa Rosa Plateau,
and San Jacinto River. Because the pond turtle requires
very specific Habitat conditions and uses a well defined
Habitat that is narrowly distributed, this species will
require site specific considerations, protection of primary
Habitat and adjacent upland areas, and species-specific
Conservation measures.
Objective 1: Include within the MSHCP Conservation Area at
least 18,289 acres of suitable primary pond turtle
Habitat (open water, meadows and marshes, and
riparian scrub, woodland and forest). Conservation
areas will include slow moving permanent or
intermittent rivers and streams, small ponds,
wetlands, arroyos, vernal pools, small lakes,
abandoned gravel pits, permanent stock ponds,
sewage treatment lagoons, reservoirs, areas with
submerged rocks and roots, emergent basking
sites, partially submerged logs, emergent (matted)
vegetation, rocks and mudbanks.
Objective 2: Include within the MSHCP Conservation Area at
least eight Core Areas, including but not limited to,
Cajalco Creek (7,849 acres), San Mateo Creek
(18,375 acres), Santa Ana River (34,598 acres),
Chino Creek (2,446 acres), Temecula Creek
(17,784 acres), Murrieta Creek (23,084 acres),
Santa Rosa Plateau (17,187 acres), and San
Jacinto River (70,294 acres). Please note that the
acreages include all Habitats within the 2 kilometer
buffer area and river/creek system.
Objective 3: Include within the MSHCP Conservation Area
59,999 acres of upland Habitat including
grasslands, oak woodlands, chaparral, seasonal
flood plains, coastal sage scrub, and other Habitats
within about 2 km of water bodies within the
MSHCP Conservation Area lands adjacent to the
riparian woodland.
Conservation for the western pond turtle
will be achieved by the inclusion of at least
78,288 acres of suitable Conserved
wetland and upland Habitat within at least
eight Core Areas which are composed of
suitable occupied wetland areas and
surrounding upland buffers and other large
blocks of Habitat within the MSHCP
Conservation Area. The Core Areas are
provided with numerous connections of
Proposed and Existing Cores. In addition,
the MSHCP Plan will maintain continued
use at a minimum of 75 percent of the
conserved Core Areas as measured once
every three years. The current population
size of the western pond turtle is
unknown, but the general distribution is,
and the species is generally readily
detectable. Furthermore, the Plan Area is
contiguous with suitable Habitat in eastern
Riverside, San Bernardino, Orange, and
San Diego counties.
The Incidental Take of the western
pond turtle is difficult to quantify due
to our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of western pond turtle
can be anticipated by the loss of the
number of acres of potential Habitat
that will become unsuitable for this
species. Approximately 5,331 acres
(22 percent) of suitable wetland
Habitat and 34,068 acres (36 percent)
of suitable adjacent upland Habitat will
be outside the MSHCP Conservation
Area and individuals within these
areas will be subject to Incidental Take
consistent with the Plan.
None 3 General Management Measure 4. Reserve Managers will
maintain ecological processes within occupied Habitat and
suitable new areas within the MSHCP Conservation Area. At a
minimum, these areas will include portions of Temecula Creek,
Santa Margarita River, Murrieta Creek, Santa Ana River, San
Jacinto River, and potentially others. Maintaining ecological
processes may include: allowing for natural dynamic fluvial
processes of flooding and Habitat regeneration within occupied
and potentially suitable streams and ponds; maintaining natural
hydrologic processes; limiting livestock access to streams,
creeks, ponds, and pools; limiting recreational use of certain
areas; altering water use; managing for urban-related predators;
and removing exotic vegetation and aquatic species. Reserve
Managers will ensure the continued use at a minimum of 75% of
the conserved Core Areas as measured once every 3 years.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-55
Objective 4: Include within the MSHCP Conservation Area
riparian/wetland and overland dispersal Habitat
along the Santa Margarita River, Temecula Creek,
Murrieta Creek, San Jacinto River, Temescal Wash,
Santa Ana River, San Timoteo Canyan Creek,
Sycamore Canyon Creek, Kolb Creek, Wilson Creek,
Cottonwood Creek, Tule Creek, San Gorgonio
Wash, Bautista Creek, Poppet Creek, portions of
Diamond Valley Lake, Vail Lake, Lake Elsinore, Lake
Mathews, Lake Perris, portions of Canyon Lake,
and numerous creeks, pools, and other water
bodies on Forest Service lands.
Objective 5: Within the MSHCP Conservation Area, maintain
continued use at a minimum of 75 percent of the
conserved Core Areas as measured once every 3
years.
BIRDS
American bittern
(Botaurus lentiginosus)
2 The American bittern is sparsely-distributed throughout
the MSHCP Plan Area within its suitable Habitat, however,
it is not predictably distributed within all suitable areas.
It is found in margins surrounding open water bodies, and
freshwater marshes where emergent vegetation is
present. There are several likely Core Areas for this
species based on past use by the American bittern or
presence of suitable Habitat, including Mystic Lake/San
Jacinto Wildlife Area, Santa Ana River/Prado Basin, and
Collier Marsh. The breeding locations (possibly at Mystic
Lake/San Jacinto Wildlife Area [Garrett and Dunn 1980]
and Santa Ana River/Prado Basin [L. Hays, pers. obs.])
which have been documented as active or possible are
located at specific sites that require Conservation.
Because it is well known for using emergent Habitat but
has specific breeding location requirements, it is
anticipated that this species will respond to a landscape
level of management with site specific requirements.
Objective 1: Include within the MSHCP Conservation Area at
least 410 acres of suitable nesting and foraging
Habitat for the American bittern consisting of
freshwater marsh.
Objective 2: Include within the MSHCP Conservation Area at
least 3 Core Areas including Mystic Lake/San
Jacinto Wildl ife Area (Subunit 4 of
RecheCanyon/Badlands Area Plan; 2,690 acres), a
possible nesting area, Santa Ana River/Prado Basin
(9,670 acres), a known nesting area, and Collier
Marsh (Proposed Linkage 2; 160 acres), a potential
nesting area, as well as other suitable Habitat
locations at Lake Skinner/Diamond Valley Lake
(Existing Core J; 24,370 acres), Lake Mathews
(Existing Core C; 15,610 acres), Vail Lake (Subunit
3 of Southwest Area Plan; 12,320 acres), Temescal
Wash (Subunit 3 of Temescal Canyon Area Plan;
4,010 acres), and Temecula Creek (Subunit 2 of
Southwest Area Plan; 850 acres).
Objective 3: A 100-meter buffer will be established around
emergent vegetation areas identified in Objective 2
Conservation for this species will be
achieved by inclusion of at least 410 acres
of suitable Conserved Habitat including
freshwater marsh and the three Core
Areas (including the two known or
possible nest sites within the Prado
Basin/Santa Ana River, Mystic Lake/San
Jacinto Wildlife Area, and Collier Marsh)
as well as the suitable locations at Lake
Skinner, Lake Mathews, Vail Lake,
Temescal Wash, and Temecula Creek.
The current population size of the
American bittern is unknown due to its
very secretive nature.
About 60 acres (approximately 13
percent) of potential Habitat for the
American bittern will be outside the
Criteria Area and Public/Quasi-Public
areas and individuals within these
areas will be subject to Incidental Take
consi s t en t w i t h th e P lan.
Not-conserved Habitat includes the
margins surrounding Hemet Lake and
Lake Riverside. Covered activities in
these areas will be subject to the
MSHCP Protection of Species
Associated with Riparian/Riverine
Areas and Vernal Pools policy included
in Section 6.1.2, Volume I of the
MSHCP which calls for avoidance and
minimization of impacts to
riparian/riverine areas and vernal
pools.
None 8 General Management Measure 4. Reserve Managers will
enhance and/or create additional Habitat and/or nesting areas in
the Santa Ana River/Prado Basin, San Jacinto Wildlife
Area/Mystic Lake, Collier Marsh, Temescal Wash, Temecula
Creek, Lake Mathews, Vail Lake, Lake Perris and Lake Skinner
areas. Reserve Managers will identify, protect, buffer from
disturbance with a 100-meter buffer, and monitor through time
existing and future-identified nesting and foraging Habitat in the
MSHCP Conservation Area. In order to assure the continued
presence of American Bittern at a minimum of 50% of the
locations in the MSHCP Conservation Area where the species
has been known to occur, Reserve Managers will demonstrate
presence/ absence at least once every 8 years. Reserve
Managers will ensure Habitat support functions within the
MSHCP Conservation Area by maintaining, preserving, and/or
enhancing hydrological processes on the Santa Ana River and
any other river systems important to maintain the integrity of
nesting sites in the MSHCP Conservation Area. Particular
management emphasis will be given to grazing, recreation and
hunting activities, as well as pesticide use.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-56
as they are incorporated into the MSHCP
Conservation Area.
Objective 4: Within the MSHCP Conservation Area, maintain
(once every 8 years) the continued use of 50
percent of the Core Areas.
bald eagle
(Haliaeetus
leucocephalus)
1 The bald eagle has a wide distribution throughout the
MSHCP Plan Area within its suitable Habitat. It occurs or
has occurred at every open water body within the Plan
Area. It uses suitable Habitat predictably and responds
well to available suitable Habitat. It occurs within the Plan
Area predominantly as a winter visitor with casual
occurrences in the summer of individuals that have
lingered at the wintering sites. It has attempted to breed
at Lake Elsinore and at Lake Skinner but has not done so
successfully.
Objective 1: Include within the MSHCP Conservation Area at
least 10,340 acres of open water Habitat at the
following seven open water bodies and one
drainage: Lake Mathews, Diamond Valley Lake,
Lake Skinner, Lake Elsinore, Vail lake, Lake Perris,
Mystic Lake and Santa Ana River. Include within
the MSHCP Conservation Area 5,520 acres of
suitable riparian Habitat within the Prado Basin and
Santa Ana River.
Objective 2: A 100-meter buffer will be established around open
water bodies identified in Objective 1 as they are
incorporated into the MSHCP Conservation Area.
Conservation for this species will be
achieved by inclusion of at least 15,860
acres of suitable Conserved Habitat
including open water bodies and riparian
Habitat within the Santa Ana River and
Prado Basin. The current population size
of the bald eagle is unknown because it is
primarily a winter and transient visitor.
However, a single pair has made repeated,
but unsuccessful, attempts to breed at
Lake Skinner in recent years.
The estimated Take of the bald eagle
is based on the acreage of potentially
suitable and/or occupied Habitat.
About 2,140 acres (12 percent) of
potential Habitat for the bald eagle will
be outside the Criteria Area and
Public/Quasi-Public designations and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Potential Habitat not
included within the MSHCP
Conservation Area includes the open
water Habitat at Hemet Lake and Lake
Riverside.
None 8 General Management Measure 4. Reserve Managers will
manage known and future occurrences of bald eagle for hunting
and recreational activities, as well as pesticide use. Reserve
Managers (including at Lake Perris) will identify, protect, buffer
from disturbance with a 100-meter buffer (buffering consistent
with the recreational activities at Lake Perris), and monitor
through time existing and future-identified nesting and foraging
Habitat in the MSHCP Conservation Area.
Bell’s sage sparrow
(Amphispiza belli belli)
2 The Bell's sage sparrow is widely but sparsely distributed
throughout the MSHCP Plan Area within suitable Habitat
in the Riverside lowlands, Santa Ana Mountains, Desert
Transition and San Jacinto Foothills Bioregions. It is
absent from higher elevation Bioregions. The Bell's sage
sparrow occurs within several areas that appear to be
Core Areas including Jurupa Mountains, Lake
Mathews-Estelle Mountain, Wasson Canyon, Santa Rosa
Plateau, Sedco Hills, Hogbacks, Lake Skinner/Diamond
Valley Lake, Vail Lake/Wilson Valley/Aguanga, Tule Valley,
Santa Rosa Hills, Lakeview Mountains, Lake Perris,
Badlands, and Box Springs Mountains. However, none of
these Core Areas contains large or dense populations of
the Bell's sage sparrow. The Bell's sage sparrow is a
year-round resident within the Plan Area. Because it is
well known for using coastal sage scrub and chaparral
Habitats, occurs widely but sparsely and well scattered
within these Habitats in the Riverside lowlands, San
Jacinto Foothills, Desert Transition, and Santa Ana
Mountains Bioregions, but has specific locations that are
Core Areas, it is anticipated that this species will respond
Objective 1: Include within the MSHCP Conservation Area at
least 245,750 acres of suitable Habitat for Bell's
sage sparrow including coastal sage scrub,
chaparral, and desert scrubs in Riverside lowland,
Santa Ana Mountains, Desert Transition, and San
Jacinto foothills Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 12 of 14 Core Areas and interconnecting
Linkages for Bell's sage sparrow. Core areas will
include the Jurupa Mountains (Proposed
Noncontiguous Habitat Block 2; 1,230 acres), Lake
Mathews-Estelle Mountain (Existing Core C plus
Proposed Extension of Existing Core 2; 23,710
acres), Wasson Canyon (Subunit 5 of Elsinore Area
Plan; 2,320 acres), Sedco Hills (Proposed Linkage
8; 5,470 acres), Hogbacks (Proposed Core 2; 5,050
acres), Lake Skinner/Diamond Valley Lake (Existing
Core C plus Proposed Extension of Existing Cores
5, 6, 7; 29,060 acres), Vail Lake/Wilson
Valley/Aguanga (Proposed Core 7; 50,000 acres),
Conservation for this species will be
achieved by inclusion of at least 245,750
acres of suitable Conserved Habitat and
12 of 14 Core Areas within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, 34 recent and high precision
locations will be inside the Criteria Area or
Public/Quasi-Public Lands, all of which are
recorded for the suitable Habitat of Bell's
sage sparrow. Conservation also will be
provided for the Habitat Linkages between
Core Areas and areas important for
dispersal including the Jurupa Mountains,
which is also conserved as a Core Area,
Reche Canyon, and San Timoteo Creek
areas as well as other Linkages. The
current population size of the Bell's sage
sparrow is unknown. However the Habitat
requirements of the species and locations
that constitute key populations are well
documented.
The Incidental Take of the Bell's sage
sparrow is difficult to quantify due to
our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of Bell's sage sparrow
can be anticipated by the loss of the
number of acres of Habitat that will
become unsuitable for this species.
About 177,440 acres of potential
Habitat for the Bell's sage sparrow will
be outside the Criteria Area and
Public/Quasi-Public designations, or
about 42 percent of the total potential
Habitat and individuals within these
areas are subject to Incidental Take
consistent with the Plan. Of this,
approximately 73,180 acres (17
percent) of potential Habitat are
located within Rural/Mountainous
designation areas, which may provide
None 8 Reserve Managers responsible for a Core Area will evaluate the
condition of the sage sparrow Habitat within the Core Area and
maintain a program to enhance and/or create suitable Habitat
within the Core Area to keep the coastal sage scrub vegetation
within 10% of the baseline value within the areas defined in
Objective 1 of the Species Account. Reserve Managers will
conserve Habitat Linkages between Core Areas and other areas
important for dispersal at the Jurupa Mountains, Reche Canyon,
and San Timoteo Creek. Particular management emphasis will
be given to alteration of the natural fire regime and predation by
domestic animals within the MSHCP Conservation Area.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-57
well to a landscape level of management with site specific
requirements.
Tule Valley, (Proposed Core 6; 4,290 acres),
Lakeview Mountains (Proposed Noncontiguous
Habitat Block 5; 7,150 acres), Lake Perris (Existing
Core H; 17,470 acres), Badlands (Proposed Core 3;
24,920 acres), and Box Springs Mountains (Existing
Noncontiguous Habitat Block A plus Proposed
Constrained Linkage 8; 2,920 acres).
Objective 3: Include within the MSHCP Conservation Area
Habitat Linkages between Core Areas and areas
important for dispersal including the Jurupa
Mountains, Reche Canyon, and San Timoteo Creek
areas.
some Habitat value, but will not be
managed for the benefit of covered
species and cannot be relied upon as
conserved Habitat for the Bell's sage
sparrow. These areas include the
Santa Rosa Plateau, Santa Rosa Hills,
and a portion of the Badlands.
Core Areas not conserved within
Criteria Area and Public/Quasi-Public
designations include the Santa Rosa
Plateau and Santa Rosa Hills. A total
of 64 recent and high precision point
locations of the Bell's sage sparrow
will be outside the Criteria Area and
Public/Quasi-Public designations. Of
these 64 point locations, 18 (18
percent) will be in the Rural/
Mountainous zone. Of the 46 (47
percent) points located outside the
MSHCP Conservation Area, 26 are
mapped in existing residential/urban/
exotic areas.
black-crowned night
heron (Nycticorax
nycticorax) (Breeding
Rookeries)
2 The black-crowned night heron is relatively well-
distributed throughout the MSHCP Plan Area within its
suitable Habitat; however, it is not predictably distributed
within all suitable areas. It occurs at almost all of the
open water bodies where emergent or riparian vegetation
is present and many of the playas and riparian drainages
that may provide foraging opportunities. There are several
Core Areas for this species, including Mystic Lake/San
Jacinto Wildlife Area, Prado Basin/Santa Ana River, and
Collier Marsh. The breeding locations, which have been
documented as active or historic, are located at specific
sites that require Conservation. Because it is well known
for using emergent Habitat, riparian areas for breeding,
and ponds and other aquatic Habitat for foraging, but has
specific locations that are used for breeding, it is
assumed that this species will respond to a landscape
level of management with site-specific requirements (e.g.,
breeding rookeries).
Objective 1: Include within the MSHCP Conservation Area at
least 16,560 acres of suitable nesting and foraging
Habitat for the black-crowned night heron including
freshwater marsh, playas and vernal pools, riparian
scrub, woodland, and forest, and cismontane alkali
marsh.
Objective 2: Include within the MSHCP Conservation Area at
least the 3 known and historic breeding locations in
the Prado Basin/Santa Ana River (9,670 acres),
Mystic Lake/San Jacinto Wildlife Area (Subunit 4 of
Reche Canyon/Badlands Area Plan; 2,690 acres),
and Collier Marsh areas (Proposed Linkage 2; 160
acres).
Objective 3: A 100-meter buffer will be established around the
Core Areas identified in Objective 2 as they are
incorporated into the MSHCP Conservation Area.
Conservation for this species will be
achieved by inclusion of at least 16,560
acres of suitable Conserved Habitat
including 9,840 acres of primary breeding
and foraging Habitat and 6,720 acres of
secondary foraging Habitat. Additionally,
the three core known or potential breeding
locations, Prado Basin/Santa Ana River,
Collier Marsh, and Mystic Lake/San
Jacinto Wildlife Area within large blocks of
Habitat are included in the MSHCP
Conservation Area. As these Core Areas
are incorporated into the MSHCP
Conservation Area, a 100-meter buffer will
be established around each Core Areas.
The current population size of the
black-crowned night-heron is unknown.
The Incidental Take of the
black-crowned night-heron is difficult
to quantify at this time owing to our
limited knowledge of the precise
location and extent of nesting sites
and the fact that losses may be
masked by fluctuations in abundance
and distribution during the life of the
permit. However, the level of Take of
black-crowned night-heron can be
anticipated by the loss of the number
of acres of Habitat that will be
impacted or become unsuitable for
this species. About 2,840 acres (22
percent) of potential primary breeding
and foraging Habitat for the
black-crowned night-heron will be
outside the Criteria Area and Public/
Quasi-Public Lands. Approximately
1,160 acres (14 percent) of potential
None 8 General Management Measure 4. Reserve Managers will
enhance and/or create additional nesting areas in the Santa Ana
River/Prado Basin, San Jacinto Wildlife Area/Mystic Lake, Collier
Marsh, Lake Mathews, Vail Lake, and Lake Skinner areas.
Reserve Managers will identify, protect, buffer from disturbance
with a 100-meter buffer, and monitor through time nest sites in
the reserve area. Reserve Managers will manage
future-identified nesting localities within the MSHCP
Conservation Area. Reserve Managers will ensure Habitat
support functions within the MSHCP Conservation Area by
maintaining hydrological process, specifically seasonal flows in
the Santa Ana River.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-58
secondary foraging Habitat for the
black-crowned night-heron will be
outside the Criteria Area and
Public/Quasi-Public Lands.
This comprises approximately 19
percent of the total potential Habitat.
No Take of nesting colonies will occur.
The estimate of Incidental Take is
consistent with the anticipated land
uses and the application of the
riparian/riverine area and vernal pool
avoidance and land use adjacency
policies/guidelines.
black swift
(Cypseloides niger) -
breeding
1 The black swift has been recorded in very low numbers
spread widely over the Plan Area. Almost all of the
observations are of migrating individuals except for the
vicinity of the known nesting location in the San Jacinto
Mountains. It will forage on the wing in every Habitat
available within the Plan Area. It has very specialized nest
site requirements that only occur in one or possibly two
locations within the Plan Area both of which are located
within the San Bernardino National Forest. For foraging
purposes, it can be managed on a landscape level.
The black swift is designated as a Forest Service
Sensitive Species. Forest Service Sensitive Species are
protected through the implementation of Forest plans and
the biological evaluation (BE) process, which considers
the potential effects of Forest Service activities on these
species.
Objective 1: Include within the MSHCP Conservation area at
least 34,020 acres of deciduous woodland and
forest and montane coniferous forest within the San
Bernardino Mountains and San Jacinto Mountains
Bioregions to provide breeding and foraging Habitat,
including the known nesting location of the black
swift at Tahquitz Creek within the San Jacinto
Wilderness Area and the potential nesting location
at the north fork of the San Jacinto River in the San
Jacinto Mountains.
Conservation for this species will be
achieved by inclusion of at least 34,020
acres of suitable Conserved Habitat,
including montane coniferous woodland
and deciduous woodland and forest
Habitats of the San Jacinto Mountains and
San Bernardino Bioregions. In addition,
the one known and one potential nest site
will be conserved in the MSHCP
Conservation Area. The current
population size of the black swift within
the Plan Area is unknown.
The Incidental Take of the black swift
is difficult to quantify due to our limited
knowledge of its distribution and
abundance within the Plan Area. The
maximum level of Incidental Take of
black swift can be anticipated by the
loss of the number of acres of Habitat.
Approximately 12,270 acres (27
percent) of potential Habitat for the
black swift will be outside the Criteria
Area and Public/Quasi-Public Land
designations and individuals within
this area will be subject to Incidental
Take consistent with the Plan. No
known nesting locations will be
subject to Take.
None 8 General Management Measure 4. Reserve managers will
manage the known and future nesting locations of this species
where proximate to existing or proposed recreational activities,
particularly trail systems.
burrowing owl
(Athene cunicularia
hypugaea)
3 The burrowing owl is narrowly distributed at relatively few
locations within the Plan Area in suitable Habitat.
Although the preferred Habitat, grassland and some forms
of agriculture land, is well distributed, the recent locations
of the burrowing owl are clumped in only a few locations.
Because this species requires specific soil and micro-
Habitat conditions, occurs in few locations within a broad
Habitat category, requires a relatively large home range to
support its life history requirements, occurs in relatively
low numbers, and is semi-colonial, the burrowing owl will
Objective 1: Include within the MSHCP Conservation Area at
least 27,470 acres of suitable primary Habitat for
the burrowing owl including grasslands.
Objective 2: Include within the MSHCP Conservation Area at
least 5 Core Areas and interconnecting Linkages.
Core areas may include the following: (1) Lake
Skinner/Diamond Valley Lake area (Existing Core C
plus Proposed Extension of Existing Cores 5, 6, 7;
29,060 acres); (2) playa west of Hemet (Proposed
Conservation for this species will be
achieved by inclusion of at least 27,470
acres of suitable primary Conserved
Habitat and 22,120 acres of suitable
secondary Conserved Habitat and 5 of 6
Core Areas within large blocks of Habitat
in the MSHCP Conservation Area. In
addition, 16 recent and high precision
locations will be inside the Criteria Area or
Public/Quasi-Public Lands. Conservation
The Incidental Take of the burrowing
owl is difficult to quantify due to our
limited knowledge of its distribution
within the Plan Area and the fact that
losses may be masked by fluctuations
in abundance and distribution during
the life of the permit. However, the
maximum level of Take of burrowing
owl can be anticipated by the loss of
the number of acres of Habitat that will
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 Reserve Managers will manage known and future occurrences
of this species with regard to Habitat loss and use of
rodenticides and pesticides. Reserve Managers will conduct
presence/absence surveys for burrowing owl where potential
Habitat occurs within the MSHCP Conservation Area prior to
conducting activities that may negatively affect the burrowing
owl. Surveys will be conducted within 30 days prior to
disturbance. Take of active nests will be avoided as described
in the BMP (Appendix C). Passive relocation (use of one way
doors and collapse of burrows) will occur when owls are present
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-59
require site-specific considerations and management
conditions.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for burrowing
owl will be conducted as part of the project review
process for public and private projects within the
burrowing owl survey area where suitable Habitat is
present (see Burrowing Owl Survey Area Map, Figure 6-4
of the MSHCP, Volume I). Burrowing owls located as a
result of survey efforts shall be conserved in accordance
with procedures described within Section 6.3.2, MSHCP,
Volume 1.
Noncontiguous Habitat Block 7; 1,250 acres); (3)
San Jacinto Wildlife Area/Mystic Lake area including
Lake Perris area (Existing Core H; 17,470 acres);
(4) Lake Mathews (Existing Core C plus Proposed
Extension of Existing Cores 2; 23,710 acres); and
(5) along the Santa Ana River (9,670 acres). The
Core Areas should support a combined total
breeding population of approximately 120 burrowing
owls with no fewer than five pairs in any one Core
area.
Objective 3: Include within the MSHCP Conservation Area at
least 22,120 acres of suitable secondary Habitat for
the burrowing owl including playas and vernal
pools, and agriculture outside of the Core Areas
identified above. Areas where additional suitable
Habitat could be conserved include west of the
Jurupa Mountains, near Temescal Wash (i.e.,
vicinity of Alberhill), near Temecula Creek, within
the Lakeview Mountains, Banning, the Badlands,
Gavilan Hills, and Quail Valley.
Objective 4: Include within the MSHCP Conservation Area the
known nesting locations of the burrowing owl at
Lake Perris, Mystic Lake/San Jacinto Wildlife area,
Lake Skinner area, the area around Diamond Valley
Lake, playa west of Hemet, Lakeview Mountains,
Lake Mathews/Estelle Mountain Reserve and
Sycamore Canyon Regional Park.
Objective 5: Surveys for burrowing owl will be conducted as part
of the project review process for public and private
projects within the burrowing owl survey area
where suitable Habitat is present (see Burrowing
Owl Survey Area Map, Figure 6-4 of the MSHCP,
Volume I). The locations of this species determined
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2, MSHCP, Volume I and the guidance
provided below:
also will be provided for the Habitat
Linkages between Core Areas and areas
important for dispersal as described
above. The current population size of the
burrowing owl is unknown; however, the
foraging and nesting Habitat requirements
are well defined. Surveys will be
conducted and locations of owls will be
conserved in accordance with procedures
described in Section 6.3.2, MSHCP,
Volume 1. The Conservation Strategy of
this species includes pre-construction
surveys of potential Habitat areas and
Conservation as appropriate until sufficient
Conservation is attained because it occurs
in grassland Habitats that are not relatively
abundant within the MSHCP Conservation
Area and the distribution of the species
within the Plan Area is not well known.
These surveys will provide the information
to determine whether the area is currently
being used by the species and will
supplement the known locations.
Translocation of burrowing owls may be
used if necessary to establish colonies in
currently unoccupied areas.
become unsuitable for this species.
About 82,490 acres (75 percent) of
the primary potential Habitat for the
burrowing owl will be outside of the
Criteria Area or Public/Quasi-Public
lands and individuals within these
areas are subject to Incidental Take
consistent with the Plan. About
101,400 acres (82 percent) of the
secondary potential Habitat for the
burrowing owl will be outside of the
Criteria Area or Public/Quasi-Public
Lands and individuals within these
areas are subject to Incidental Take
consistent with the Plan. A total of 22
point localities recorded within the
UCR database will be outside of the
MSHCP Conservation Area. Core
Areas not conserved include Valle
Vista. Smaller numbers of clustered
locations of burrowing owls that will
be outside the Criteria Area and
Public/Quasi-Public Lands, include
those locations at the area west of the
Jurupa Mountains, San Jacinto,
Rancho California area (Long Canyon
and De Portola Road), and March
ARB. Historically, there were a
number of locations concentrated
within the Moreno Valley area,
however due to the age of the location
and the development within the area,
the number currently within this area
is unknown and receives no
Conservation within the MSHCP
Conservation Area. Individual
locations that are outside the MSHCP
Conservation Area include locations at
Beaumont, Banning, and Murrieta.
outside the nesting season. Translocation sites for the
burrowing owl will be created in the reserve for the
establishment of new colonies. Translocation sites will be
identified, taking into consideration unoccupied Habitat areas,
presence of burrowing mammals, existing colonies and effects
to other Covered Species. The Wildlife Agencies will concur with
the site selection prior to translocation site development.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-60
Burrowing owl surveys shall be conducted utilizing
accepted protocols as follows. If burrowing owls
are detected on the project site then the action(s)
taken will be as follows:
If the site is within the Criteria Area, then at least 90
percent of the area with long-term Conservation
value will be included in the MSHCP Conservation
Area. Otherwise:
1) If the site contains, or is part of an area
supporting less than 35 acres of suitable
Habitat or the survey reveals that the site and
the surrounding area supports fewer than 3
pairs of burrowing owls, then the on-site
burrowing owls will be passively or actively
relocated following accepted protocols.
2) If the site (including adjacent areas) supports
three or more pairs of burrowing owls,
supports greater than 35 acres of suitable
Habitat and is non-contiguous with MSHCP
Conservation Area lands, at least 90 percent
of the area with long-term Conservation value
and burrowing owl pairs will be conserved
onsite.
The survey and Conservation requirements
stated in this objective will be eliminated when
it is demonstrated that Objectives 1 – 4 have
been met.
Objective 6: Pre-construction presence/absence surveys for
burrowing owl within the survey area where suitable
Habitat is present will be conducted for all Covered
Activities through the life of the permit. Surveys will
be conducted within 30 days prior to disturbance.
Take of active nests will be avoided. Passive
relocation (use of one way doors and collapse of
burrows) will occur when owls are present outside
the nesting season.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-61
Objective 7: Translocation sites for the burrowing owl will be
created in the MSHCP Conservation Area for the
establishment of new colonies. Translocation sites
will be identified, taking into consideration
unoccupied Habitat areas, presence of burrowing
mammals to provide suitable burrow sites, existing
colonies and effects to other Covered Species.
Reserve Managers will consult with the Wildlife
Agencies regarding site selection prior to
translocation site development.
cactus wren
(Campylorhynchus
brunneicapillus)
3 The cactus wren is narrowly distributed at relatively few
locations in suitable Habitat within the Plan Area.
Although the preferred Habitat, coastal sage scrub, desert
scrubs, and Riversidean alluvial fan sage scrub is well
distributed, the locations of the cactus wren are clumped
in few locations due to its specific Habitat requirements.
It requires patches of cactus-dominated sage scrub
Habitat in the Riverside Lowland and San Jacinto Foothill
Bioregions of the Plan Area. Because this species has
specific Habitat requirements (cactus patches), occurs in
few locations within a broader Habitat category, and
occurs in relatively low numbers within the Plan Area, the
cactus wren will require site-specific considerations, a
landscape level of management, and species-specific
Conservation measures as a Group 3 species.
Objective 1: Include within the MSHCP Conservation Area at
least 77,070 acres of suitable Habitat for the cactus
wren including desert scrub, Riversidean alluvial fan
sage scrub, and coastal sage scrub within Riverside
Lowland and San Jacinto Foothill Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 11 Core Areas and interconnecting Linkages
including Chino Hills (Proposed Extension of
Existing Core 1; 270 acres), Badlands (Proposed
Core 3; 24,920 acres), Box Springs Mountains
(Existing Noncontiguous Habitat Block A plus
Proposed Constrained Linkages 7 and 8; 4,000
acres), Lake Mathews-Estelle Mountain area
(Existing Core C plus Proposed Extension of
Existing Core 2; 23,710 acres), Alberhill (Subunit 2
of Elsinore Area Plan; 3,460 acres), Motte-Rimrock
area MSHCP Conservation Area (Proposed
Noncontiguous Habitat Block 4; 1,150 acres), Lake
Perris/ Bernasconi Hills (Existing Core H; 17,470
acres), Lake Skinner (Existing Core C plus
Proposed Extension of Existing Cores 5, 6, 7;
29,060 acres), Vail Lake (Subunit 3 of Southwest
Area Plan; 12,320 acres), Wilson Valley (Subunit 2
of REMAP Area Plan; 33,540 acres), and Aguanga
(Subunit 4 of REMAP Area Plan; 2,660 acres).
Objective 3: Include within the MSHCP Conservation Area
micro-Habitat (i.e., cactus patches) in potential
nesting Habitat.
Conservation for this species will be
achieved by inclusion of at least 77,070
acres of suitable Conserved Habitat and
11 of 12 Core Areas within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, 14 recent and high precision
locations will be inside the Criteria Area or
Public/Quasi-Public Lands, all of which are
recorded for the suitable Habitat of the
cactus wren. Conservation also will be
provided for the Habitat Linkages between
Core Areas as identified above.
Additionally, the species-specific
Conservation measure for the cactus wren
consists of conserving the microHabitat
for this species which is composed of
cactus patches within the Core Areas
within the MSHCP Conservation Area. The
current population size of the cactus wren
is unknown but has been estimated at 100
to 110 pairs (McKernan 1998 pers.
comm.).
The Incidental Take of the cactus wren
is difficult to quantify due to our limited
knowledge of its distribution and
abundance within the Plan Area. The
maximum level of Incidental Take of
cactus wrens can be anticipated by
the loss of the number of acres of
potential Habitat that will become
unsuitable for this species. About
63,700 acres (45 percent) of potential
Habitat for the cactus wren will be
outside the Criteria Area and
Public/Quasi-Public designations, and
individuals within this Habitat will be
subject to Incidental Take consistent
with the plan. Of this, approximately
19,940 acres of potential Habitat (14
percent) are located wi th in
Rural/Mountainous designation areas.
While the Rural/Mountainous areas are
not included within the MSHCP
Conservation Area, will not be
managed for the benefit of wildlife, and
the existing zoning/ordinances for
these areas do not preclude
development and could allow
substantial fragmentation and/or
degradation of Habitat for proposed
covered species, the anticipated levels
of development of these areas may be
consistent with maintaining some
Habitat for the cactus wren. A total of
20 locations within the UCR database
None 8 Each Reserve Manager responsible for a Core Area identified in
the Species Account will evaluate the condition of cactus
patches within the Core Area and maintain a program to enhance
and/or create cactus patches, the preferred microHabitat, within
the Core Area to keep the areal extent of cactus patches within
10% of that present at the base line surveys. Within each Core
area, Reserve Managers will maintain occupancy of at least 80
percent of the cactus wren Habitat determined to be occupied
using existing information and baseline surveys. Baseline
surveys of the Core Areas will be conducted as necessary (i.e.,
where no existing information exists) to determine the number of
acres occupied by cactus wren within each core area. Particular
management emphasis will be given to fire and fire suppression
activities, grazing, farming, competition from non-native species,
and Habitat fragmentation and transition.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-62
of the cactus wren will be outside the
Criteria Area and Public/Quasi-Public
designations, 9 of which are located
within residential or developed areas
and may no longer be extant. The
Core Area within the Temecula Creek
area west of Vail Lake is not
considered conserved. Although a
Proposed Constrained Linkage is
located within this drainage, the
upland areas within which the cactus
wren might be present are not
conserved.
California horned lark
(Eremophila alpestris
actia)
2 The California horned lark is relatively widely-distributed
throughout the MSHCP Plan Area within its suitable
Habitat, however, it is not predictably distributed within all
suitable areas. It occurs in some of the sparsely
vegetated Habitats but has not been documented to be
uniformly distributed within all open Habitat areas. There
appear to be several Core Areas including Mystic
Lake/San Jacinto Wildlife Area, the grasslands within
Prado Basin, Wasson Canyon area, Moreno Valley/March
ARB, and Murrieta/Murrieta Hot Springs area. Because it
is well known for using open, sparsely vegetated Habitats
but has specific locations that appear to be Core Areas,
it responds well to a landscape level of management with
site specific requirements.
Objective 1: Include within the MSHCP Conservation Area at
least 153,750 acres of suitable foraging and nesting
Habitat for the California horned lark including playa
and vernal pool Habitats, agriculture (field
croplands), grassland, cismontane alkali marsh,
coastal sage scrub, and Riversidean alluvial fan
sage scrub. The scrub Habitats provide foraging
Habitat and nesting opportunities in areas where the
scrub is relatively sparse.
Objective 2: Include within the MSHCP Conservation Area at
least 3 Core Areas and a portion of a fourth Core
Area for the California horned lark including
grasslands around Prado Basin (including the
adjacent Santa Ana River area; 9,670 acres),
Wasson Canyon (Subunit 5 of Elsinore Area Plan;
2,320 acres), Mystic Lake/San Jacinto Wildlife Area
(Subunit 4 of Reche Canyon/Badlands Area Plan;
2,690 acres), and a portion of the Core Area in the
Murrieta/Murrieta Hot Springs area (Proposed Core
2; 5,050 acres). Other locations are conserved as
well, although they may not include Core Areas.
These other locations include Lake Elsinore
grasslands, Santa Rosa Plateau, and Wilson Valley.
Conservation for this species will be
achieved by the inclusion of at least
153,750 acres of suitable Conserved
Habitat and the Core Areas within the
Prado Basin, Wasson Canyon, and Mystic
Lake/San Jacinto Wildlife Area, as well as
a portion of the Core Area within the
Murrieta/Murrieta Hot Springs area
(Proposed Core 2). The current
population size of the California horned
lark is unknown however the foraging and
nesting Habitat requirements are well
defined. The species is moderately
predictable in its occurrence and may vary
in number within the area from a few to
many individuals. It occurs repeatedly in
a number of conserved locations.
About 284,800 acres (65 percent) of
potential Habitat for the California
horned lark will be outside the Criteria
Area and Publ ic/Quasi-Public
designations and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan. One of the 5 Core Areas, the
Moreno Valley/March ARB area, will
be outside the MSHCP Conservation
Area. A portion of a Core Area within
the Murrieta/Murrieta Hot Springs area
will be outside the MSHCP
Conservation Area.
None 8 Reserve Managers will manage known and future occurrences
of this species for pesticide use and Habitat fragmentation and
destruction.
California spotted owl
(Strix occidentalis
occidentalis)
2 The California spotted owl has a sparse distribution within
the Santa Ana Mountains, San Bernardino Mountains and
San Jacinto Mountains Bioregions of the MSHCP Plan
Area within montane coniferous and oak-deciduous
Objective 1: Include within the MSHCP Conservation Area at
least 41,370 acres of suitable montane coniferous
forest and oak deciduous woodland and forest
Habitats within the Santa Ana Mountains (7,350
Conservation for this species will be
achieved by inclusion of at least 41,370
acres of suitable Conserved Habitat and
the known nesting localities within large
Approximately 16,000 acres (about 28
percent) of potential Habitat for the
California spotted owl will be outside
the Criteria Area or Public/Quasi-
None 8 Reserve Managers will mange micro Habitat (i.e., old-growth
forest) and integrate monitoring and management programs for
the California spotted owl and the San Bernardino Flying squirrel.
Reserve Managers will manage the known nesting locations and
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-63
woodlands and forest Habitats. It is a Group 2 species
because its Conservation requires integration of Habitat
protection with site specific monitoring and management.
acres), San Bernardino Mountains (1,620 acres),
and San Jacinto Mountains (32,400 acres)
Bioregions for breeding, foraging, wintering use,
and dispersal movement for the California spotted
owl.
Objective 2: Include within the MSHCP Conservation Area the
nesting locations within the Santa Ana, San Jacinto
and San Bernardino mountains.
blocks of Habitat in the MSHCP
Conservation Area.
Public designations, and individuals
within these areas will be subject to
incidental take consistent with the
Plan. Approximately five locations
from the CDFG database appear to be
located outside of the Criteria Area or
Public/Quasi-Public designations. Only
one of these five locations outside of
the MSHCP Conservation Area has
been recorded as nesting (1988). No
other known nesting areas are outside
the Criteria Area or Public/Quasi-
Public designations. No take of
nesting locations is included within
this permit.
potential nesting Habitat (e.g., Habitat that consists of large
blocks of mature forest with large trees and snags for nesting,
dense, multi-layered canopy cover for roost seclusion, and a
permanent water source, consistent with the species' needs)
within the San Jacinto, San Bernardino, and Santa Ana
mountains. Particular management emphasis will be given to
fire and fire suppression activities, alteration of hydrology,
farming, mining, logging and firewood harvesting.
coastal California
gnatcatcher
(Polioptila californica
californica)
2 The coastal California gnatcatcher is distributed widely
within suitable Habitat in the Riverside lowlands and San
Jacinto Foothills Bioregions especially along the Interstate
15/215 corridor from the Santa Ana River to Temecula
and into the Vail Lake area. It is absent from the higher
elevations and desert areas. The Coastal California
gnatcatcher occurs in 16 Core Areas within the Plan Area
including Alessandro Hills, El Cerrito, Lake Mathews-
Estelle Mountain Reserve, Alberhill area, the proposed
North Peak Conservation Bank/Meadowbrook area,
Wasson Canyon, Railroad Canyon, Quail Valley, Sedco
Hills, Hogbacks, Murrieta Hot Springs, Lake Skinner, Buck
Road to Pourroy Road east of Murrieta Hot Springs, Vail
Lake/Wilson Valley including the eastern Temecula Creek
area, Rancho California east of Interstate 15 to De Portola
Road, and Norco Hills. The coastal California
gnatcatcher, as a year-round resident, has lower
dispersal capabilities than small passerine birds that are
long-distance migrants and thus relies on Habitat
Linkages for localized and regional movements. Because
the coastal California gnatcatcher is well known for using
coastal sage scrub within the lowland and foothill
Bioregions, occurs widely within its suitable Habitat, but
has specific locations that are Core Areas, it is included
as a Group 2 species to be managed at a Habitat level
with site specific requirements in Core Areas and
Linkages.
Objective 1: Include within the MSHCP Conservation Area at
least 77,070 acres of suitable Habitat including
coastal sage scrub, Riversidean alluvial fan scrub
and desert scrub in the Riverside Lowland and San
Jacinto Foothills Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 13 of the Core Areas and interconnecting
Linkages within 9 Core and Linkage areas including
El Cerrito/Lake Mathews-Estelle Mountain Reserve
(Existing Core C plus Proposed Extension of
Existing Core 2; 23,710 acres), Alberhill area
(Subunit 2 of the Elsinore Area Plan; 3,460 acres),
the proposed North Peak Conservation
Bank/Meadowbrook area (Subunit 6 of the Elsinore
Area Plan; 1,080 acres), Wasson Canyon (Subunit
5 of the Elsinore Area Plan; 2,320 acres), Railroad
Canyon/Sedco Hills (Proposed Linkage 8; 5,470
acres), a portion of the Quail Valley area (Proposed
Linkage 7; 3,400 acres), Hogbacks/Murrieta Hot
Springs (Proposed Core 2 plus Existing Constrained
Linkage A; 5,350 acres), Lake Skinner/Buck Road
to Pourroy Road east of Murrieta Hot Springs
(Existing Core J plus Proposed Extension of Existing
Core 5, 6, and 7; 29,060 acres), Vail Lake/Wilson
Valley including the eastern Temecula Creek area
(Proposed Core 7; 50,000 acres). Due to mapping
Conservation for this species will be
achieved by inclusion of at least 77,070
acres of suitable Conserved Habitat and
13 Core Areas within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will document that the
MSHCP Conservation Area will maintain
(once every three years) the continued
use of and successful reproduction at 75
percent of the Core Areas. Successful
reproduction is defined as a nest which
fledged at least one known young.
The current number of locations of the
gnatcatcher in Riverside County is
estimated at 250 to 300 pairs. The
gnatcatcher is restricted to more lowland
areas and is not distributed evenly through
the preferred Habitat. It occurs in a
patchy distribution and thus the suitable
Habitat as well as the Core Areas and
connections of these Core Areas need to
be addressed as described in detail above.
Numerous small patches and small
numbers of gnatcatchers are conserved
as well and are likely to be important as
About 63,700 acres of potential
primary Habitat for the coastal
California gnatcatcher will be outside
the Criteria Area and Public/Quasi-
Public designations, or about 45
percent of the total potential primary
Habitat. Of this, approximately 19,940
acres (14 percent) of potential primary
H a b i t a t i s l oca t ed w i t h i n
Rural/Mountainous designation areas.
Based on the evaluation of Habitat
quality provided by PSBS and KTU+A
(1995), approximately 40,810 acres
(39 percent) of moderate, high and
very high quality Habitat will be
outside the MSHCP Conservation
Area. This includes 3,470 acres (19
percent) of the very high quality
Habitat, 20,680 acres (39 percent) of
the high quality Habitat, and 16,660
acres (49 percent) of the moderate
quality Habitat.
Core Areas not conserved within
Criteria Area and Public/Quasi-Public
designations include the Norco Hills
population (approximately 5 locations),
None 3 3 Each Reserve Manager responsible for a Core Area as identified
in the Species Account will evaluate the condition of the sage
scrub vegetation within the Core Area and maintain a program to
enhance and/or create sage scrub within the Core Area to keep
the percent cover of coastal sage scrub vegetation within 10%
of the baseline value within the areas defined in Objective 1 of
the Species Account. Reserve Managers will maintain
occupancy of at least 80 percent of the occupied gnatcatcher
Habitat, as determined using existing information and baseline
surveys, within each Core Area. Reserve Managers will maintain
(once every three years) continued use of and successful
reproduction at 75% of the Core Areas. Successful reproduction
is defined as a nest which fledged at least one known young.
Conduct baseline surveys as necessary (i.e., where no existing
information exists) to determine the number of acres occupied
by gnatcatchers within each Core Area. Particular management
emphasis will be given to fire and fire suppression activities,
farming, grazing, domestic animals, Habitat fragmentation and
transition, and competition with non-native species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-64
configuration, some of the coastal California
gnatcatcher Core Areas have been combined in
order to provide the acreage of MSHCP
Conservation Area within the Core Area.
Objective 3: Within the MSHCP Conservation Area, maintain
(once every three years) continued use of and
successful reproduction at 75 percent of the Core
Areas. Successful reproduction is defined as a nest
which fledged at least one known young.
providing a source of dispersing birds.
These small populations, many of which
are documented above to be preserved
may be important to prevent further
isolation of remaining breeding groups.
Alessandro Hills (approximately eight
locations), a portion of the Quail Valley
area (approximately six locations), and
Rancho California east of Interstate 15
to De Portola Road (approximately 10
locations some of which may no
longer be extant due to recent
development in the area). Based on
the UCR database, a total of 27
locations (7 percent) will be in the
Rural/Mountainous zone and 130
locations (33 percent) are located
outside the MSCHP Conservation
Area. However, of the 130 points, 37
are mapped in existing residential/
urban/exotic areas.
Cooper’s hawk
(Accipiter cooperii)
2 The Cooper's hawk is widely distributed throughout the
MSHCP Plan Area within suitable Habitat. It occurs within
all Bioregions of the Plan Area. There are several areas
that appear to be Core Areas including the Prado
Basin/Santa Ana River, San Timoteo Canyon, Temescal
Wash, Wasson Canyon, Slater Canyon, Santa Rosa
Plateau West, Temecula Creek, Murrieta Creek, Tucalota
Creek, Vail Lake, Wilson Valley, San Bernardino National
Forest, and Cleveland National Forest. Because it is well
known for using riparian scrub, forest and woodland, oak
woodland and forest, and montane coniferous forest,
occurs in all Bioregions of the Plan Area, but has specific
locations that are Core Areas, it is a Group 2 species.
Objective 1: Include within the MSHCP Conservation Area at
least 54,580 acres of suitable Habitat including
riparian scrub, forest, and woodland, oak woodland
and forest, and montane coniferous forest.
Objective 2: Include within the MSHCP Conservation Area at
least 10 Core Areas at (1) the Prado Basin/Santa
Ana River (9,670 acres), (2) San Timoteo Canyon
(Subunit 3 of The Pass Area Plan; 2,290 acres), (3)
Temescal Wash (Subunit 3 of Temescal Canyon
Area Plan; 4,010 acres), (4) Wasson Canyon
(Subunit 5 of Elsinore Area Plan; 2,320 acres), (5)
Temecula Creek (Subunit 2 of Southwest Area Plan;
850 acres), (6) Murrieta Creek (Subunit 1 of
Southwest Area Plan; 2,060 acres), (7) Vail Lake
(Subunit 3 of Southwest Area Plan; 12,320 acres),
(8) Wilson Valley (Subunit 2 of REMAP Area Plan;
33,540), (9) San Bernardino National Forest
(Existing Core K;149,750 acres), (10) Cleveland
National Forest (Existing Core B; 71,490 acres).
Conservation for this species will be
achieved by inclusion of at least 54,580
acres of suitable Conserved Habitat and
10 Core Areas including the Prado
Basin/Santa Ana River, San Timoteo
Canyon, Temescal Wash, Wasson
Canyon, Temecula Creek, Murrieta Creek,
Vail Lake, Wilson Valley, San Bernardino
National Forest, and Cleveland National
Forest.
About 22,100 acres (29 percent) of
potential Habitat for the Cooper's hawk
will be outside the Criteria Area and
Public/Quasi-Public designations and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Of this, approximately
5,430 acres (7 percent) of potential
Habitat are located within Rural/
Mountainous designation areas. While
the Rural/Mountainous areas are not
included within the MSHCP
Conservation Area and will not be
managed for the benefit of wildlife, the
anticipated levels of development in
these areas will likely be consistent
with maintaining some Habitat for the
Cooper's hawk. A portion of the core
population within the Santa Rosa
Plateau is within the Rural/
Mountainous designation and is not
considered to be conserved. The
population at Slater Canyon is also
within the Rural/Mountainous
designation and is not considered to
be conserved. The core population
None 8 General Management Measure 4. Reserve Managers will
evaluate the condition of the riparian vegetation within the Core
Areas and maintain a program to enhance and/or create riparian
Habitat within the Core Areas. Reserve Managers will maintain
the hydrological processes within the drainages that support the
potential Habitat for this species and will selectively rehabilitate
or revegetate all such potential Habitat areas that are currently
fragmented or otherwise degraded by, for instance, infestations
of exotic plants and animals. Reserve Managers will manage
any nesting locations found in the future within the MSHCP
Conservation Area. Particular management emphasis will be
given to Habitat destruction and degradation, timber harvesting,
pesticide use and human disturbance at nest sites.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-65
area at Tucalota Creek is constrained
by existing development and although
Habitat is provided within the drainage
by conserved riparian scrub,
woodland and forest, the individuals
within this drainage are not considered
to be conserved.
double-crested cormorant
(Phalacrocorax auritus)
2 The double-crested cormorant has a wide distribution
throughout the MSHCP Plan Area within suitable Habitat.
It occurs at every open water body within the Plan Area
and thus uses Habitat predictably and responds well to
available suitable Habitat. It will use Habitat near open
water bodies containing trees for creating rookeries. The
only known nesting location in the Plan Area and any
nesting locations found in the future will require site
specific management.
Objective 1: Include within the MSHCP Conservation Area
16,100 acres of open water Habitat within seven
open water bodies and one drainage including Lake
Mathews, Diamond Valley Lake, Lake Skinner, Lake
Elsinore, Vail Lake, Lake Perris, Mystic Lake and
Prado Basin/Santa Ana River and the wetland
Habitats within Prado Basin/Santa Ana River.
Objective 2: Include within the MSHCP Conservation Area the
known double-crested cormorant rookery in the
Prado Basin/Santa Ana River.
Conservation for this species will be
achieved by inclusion of at least 16,100
acres of suitable Conserved Habitat (open
water and wetland Habitat within the
Prado Basin/Santa Ana River) and the
known rookery location in the Prado
Basin/Santa Ana River. The current
population size of the double-crested
cormorant is unknown, however it appears
to have regular use of specified areas and
a known breeding location that has been
regularly monitored in the past.
The estimated Take of the double-
crested cormorant is based on the
acreage of potentially suitable and/or
occupied Habitat. About 2,180 acres
of potential Habitat for the
double-crested cormorant will be
outside the Criteria Area and Public/
Quasi-Public Lands and individuals
located within these areas will be
subject to Incidental Take consistent
with the Plan. This comprises
approximately 12 percent of the total
potential Habitat. This includes the
open water bodies composed of
Hemet Lake, and Lake Riverside.
None 8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining, preserving, and/or enhancing
hydrological processes within the following: Lake Mathews,
Diamond Valley Lake, Lake Skinner, Lake Elsinore, Vail Lake,
Lake Perris, Mystic Lake and Prado Basin/Santa Ana River.
Reserve Managers will manage the known double-crested
cormorant rookery in the Santa Ana River drainage/Prado Basin,
as well as future rookeries. Particular management emphasis
will be given to pesticide use, flood control measures and
Habitat destruction, and human persecution.
downy woodpecker
(Picoides pubescens)
2 The downy woodpecker is sparsely distributed throughout
the MSHCP Plan Area within suitable Habitat. There are
several areas that appear to be Core Areas including
Prado Basin/Santa Ana River, Temescal Canyon, Alberhill
Creek, Temecula Creek, and the Vail Lake area. It also
occurs in other areas of the Plan Area including but not
limited to San Timoteo Creek, the Badlands, Potrero, the
mountain Bioregions, and Wilson Valley. Because it is
well known for using riparian scrub, forest and woodland,
and oak woodland and forest, occurs in all Bioregions of
the Plan Area with known Core Areas, a landscape level
of management with site specific requirements is
proposed.
Objective 1: Include within the MSHCP Conservation Area at
least 34,080 acres of suitable nesting and foraging
Habitat for the downy woodpecker including riparian
scrub, forest and woodland, and oak woodland and
forest.
Objective 2: Include within the MSHCP Conservation Area the 5
Core Areas and Linkages within the Prado
Basin/Santa Ana River (9,670 acres), Vail Lake
(Subunit 3 of the Southwest Area Plan; 12,320
acres), Temescal Wash (Subunit 3 of the Temescal
Canyon Area Plan; 4,010 acres), Alberhill Creek
(Subunit 2 of the Elsinore Area Plan; 3,460 acres),
and Temecula Creek (Subunit 2 of the Southwest
Area Plan; 850 acres).
Objective 3: Include within the MSHCP Conservation Area the
micro-Habitat (i.e., groups of large snags) in
potential nesting Habitat.
Conservation for this species will be
achieved by the inclusion of at least
34,080 acres of suitable Conserved
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will conserve the micro-
Habitat (i.e., groups of large snags) in
potential nesting Habitat. Five of the Core
Areas of the downy woodpecker are
conserved within large blocks of Habitat in
the MSHCP Conservation Area and
additional areas with few or no recorded
locations but that contain potential Habitat
are also conserved.
About 12,710 acres (about 27
percent) of potential Habitat for the
downy woodpecker will be outside the
Criteria Area or Public/Quasi-Public
designations, and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan. None of the Core Areas will be
outside the MSHCP Conservation
Area. Of this, approximately 5,390
acres (12 percent) of potential Habitat
are located within Rural/Mountainous
designation areas. While the Rural/
Mountainous areas are not included
within the MSHCP Conservation Area
and will not be managed for the benefit
of wildlife, the anticipated levels of
development in these areas will likely
be consistent with maintaining some
Habitat for the downy woodpecker.
None 8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions by maintaining, preserving,
and/or enhancing hydrological process of Prado Basin/Santa
Ana River. Reserve Managers will manage known and future
identified nesting localities and protect micro-Habitat (i.e.,
groups of large snags) in potential nesting Habitat.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-66
ferruginous hawk
(Buteo regalis)
1 The ferruginous hawk has a widespread distribution
throughout the MSHCP Plan Area within suitable foraging
Habitat. It occurs within the Plan Area as a transient in
the spring and fall and may winter within the area. It does
not require specific conditions or locations for nesting
because it does not nest in the region. It is an
opportunistic predator that may forage anywhere within
open Habitats in the area.
Objective 1: Include with the MSHCP Conservation Area at least
144,120 acres of agriculture (field crops),
grassland, cismontane alkali marsh, playa and
vernal pool, Riversidean alluvial fan sage scrub,
coastal sage scrub, desert scrub, peninsular juniper
woodland and scrub, and riparian scrub, woodland,
and forest, including 2,690 acres at Mystic
Lake/San Jacinto Wildlife Area and 5,520 acres of
riparian Habitat at Prado Basin/Santa Ana River.
Conservation for this species will be
achieved by inclusion of at least 144,120
acres of suitable Conserved Habitat
including agriculture (field crops),
grassland, cismontane alkali marsh, playa
and vernal pool, Riversidean alluvial fan
sage scrub, coastal sage scrub, desert
scrub, peninsular juniper woodland and
scrub, and riparian scrub, woodland, and
forest. The main areas within which the
species has been observed, Prado
Basin/Santa Ana River and Mystic
Lake/San Jacinto Wildlife Area, will be
conserved in the MSHCP Conservation
Area. The current population size of the
ferruginous hawk is unknown, however
the foraging Habitat requirements are well
defined. The species is moderately
predictable in its occurrence and may vary
in number within the area from a few to
many individuals. It has occurred
repeatedly in a number of conserved
locations.
About 257,290 acres (64 percent) of
potential Habitat for the ferruginous
hawk will be outside the Criteria Area
and Public/Quasi-Public designations
and individuals occurring within these
areas will be subject to Incidental Take
consistent with the Plan.
None 8 General Management Measure 1.
golden eagle
(Aquila chrysaetos)
2 The golden eagle is widely distributed as a foraging
species throughout the MSHCP Plan Area within all
bioregions and in virtually all Habitats except dense
conifer woodlands at high elevations. There are several
golden eagle nest sites within the Plan Area as well. Nest
sites occur within a variety of Habitats, predominantly
chaparral, but are more closely associated with specific
topography and micro-Habitat features than Habitat type.
Nest site locations include Temecula Gorge, in the hills
east of Sun City, in the hills north of Aguanga west of
State Route 371, Elsinore Peak, Rawson Canyon, Double
Butte, Mesa de Burro on the Santa Rosa Plateau, on a
transmission line in San Timoteo Canyon (likely nest) and
possibly in the Box Springs Mountains and on Arlington
Mountain, although these last two locations may have
now been abandoned. These nest site locations will be
considered core areas that require Conservation.
Objective 1: Include within the MSHCP Conservation Area at
least 164,390 acres of suitable foraging Habitat for
the golden eagle including grasslands, playas and
vernal pools, desert scrubs, Riversidean alluvial fan
sage scrub, oak woodlands and forests, and coastal
sage scrub. Conserved Habitats will be distributed
throughout all bioregions of the Plan Area.
Objective 2: Include within the MSHCP Conservation Area and
buffer from disturbance the known nesting locations
at Temecula Gorge, in the hills north of Aguanga
west of State Route 371, at Elsinore Peak, at
Rawson Canyon, at Mesa de Burro on Santa Rosa
Plateau, and in San Timoteo Canyon (likely nest).
Buffering of the nest sites will include Conservation
of undeveloped Habitat in the MSHCP Conservation
Area within a one mile radius around each of the
Conservation for this species will be
achieved by inclusion of at least 164,390
acres of suitable Conserved Habitat, the
known nest sites at Temecula Gorge, in
the hills north of Aguanga west of State
Route 371, at Elsinore Peak, on Mesa de
Burro on the Santa Rosa Plateau, in San
Timoteo Canyon near El Casco (likely
nest), and in Rawson Canyon, and the 1
mile buffer protection around the nest
sites. The current population size of the
golden eagle is unknown however there
are recorded nesting locations. As
identified in Objective 3, the MSHCP
Conservation Area will maintain (once
every 8 years) the continued use of, and
successful reproduction at 75 percent of
About 191,770 acres (54 percent) of
potential Habitat for the golden eagle
will be outside the Criteria Area or
Public/Quasi-Public designations, and
will be subject to incidental take
consistent with the Plan. Of this,
approximately 43,740 acres (12
percent) of potential Habitat are
located within Rural/Mountainous
designation areas. While the
Rural/Mountainous areas are not
included within the MSHCP
Conservation Area and will not be
managed for the benefit of wildlife, the
anticipated levels of development in
these areas will likely be consistent
with maintaining some Habitat for
None 8 8 Reserve Managers will buffer from disturbance, and monitor and
manage through time known nesting locations at Temecula
Gorge, in the hills north of Aguanga west of State Route 371, at
Elsinore peak, Rawson Canyon. Buffering of the nest sites will
include Conservation of undeveloped Habitat in the Criteria Area
and reserve within a one mile radius around each of the nest site
locations and may include a variety of Habitats. Monitoring and
management will be used to demonstrate continued (once every
eight years) use and successful reproduction at 75% of the
known nesting localities (including any nesting locations
identified in the MSHCP Conservation Area in the future).
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-67
nest site locations and may include a variety of
Habitats.
Objective 3: Maintain (once every 8 years) the continued use of,
and successful reproduction at 75 percent of the
known nesting localities (including any nesting
locations identified in the MSHCP Conservation Area
in the future). Successful reproduction is defined
as a nest which fledged at least one known young.
the known golden eagle known nesting
localities (including any nesting locations
identified in the MSHCP Conservation Area
in the future). Although the Sun City,
Arlington Mountain, Box Springs
Mountains (potential), and Double Butte
nesting locations are not included within
the MSHCP Conservation Area, they have
not been recently documented as being
active and no take of active nest sites will
be permitted.
foraging for the golden eagle. Four
point locations are located within the
Rural/Mountainous category. A total
of 28 point localities will be outside of
the MSHCP Conservation Area. The
nest site location at Double Butte is
not considered conserved and has not
been documented as being active. The
nest site location in the hills east of
S u n C i t y i s w i t h i n t h e
Rural/Mountainous designation. The
current status of the Sun City site is
not known. The CNDDB recorded it as
active in 1993. It was not mentioned
as being active during recent
discussions of nest sites (P. Bloom
2001 pers. comm.). The two known
or potential nest site locations in the
Box Springs Mountains and on
Arlington Mountain are no longer
active (LaPré 2002). No Take of
active nest sites will be permitted.
grasshopper sparrow
(Ammodramus
savannarum)
2 The grasshopper sparrow is widely, but sparsely,
distributed throughout the MSHCP Plan Area within
suitable Habitat in the Riverside Lowlands, Santa Ana
Mountains, and San Jacinto Foothills Bioregions. It is
absent from the higher elevation Bioregions and the
desert transition Bioregions. The grasshopper sparrow
has well known and restricted Habitat requirements. It is
sensitive to Edge Effects and requires relatively large
blocks of contiguous Habitat.
Grasshopper sparrow habitat requirements are well
known. Once conservation has been achieved, and
specific locations that support Core Areas are known, it
is anticipated that this species will respond well to a
landscape level of management with site-specific
requirements. It has therefore been included in Group 2.
Objective 1: Include within the MSHCP Conservation Area at
least 38,690 acres of suitable Habitat for the
grasshopper sparrow including grassland Habitat
within the Riverside Lowland, San Jacinto Foothills,
and Santa Ana Mountains Bioregions.
Objective 2: Within the MSHCP Conservation Area, maintain
occupancy within 3 large Core Areas (100 percent)
and at least 3 of the 4 smaller Core Areas (75
percent) in at least 1 year out of any 5 consecutive
year period. In order for this species to become a
Covered Species Adequately Conserved, the
following Conservation must be demonstrated:
Include within the MSHCP Conservation Area at
least 8,000 acres in 7 potential Core Areas. Core
areas may include the following: 1) Prado Basin, 2)
Lake Skinner/ Diamond Valley Lake/Johnson Ranch
Conservation for this species will be
achieved by inclusion of at least 38,690
acres of suitable Conserved Habitat. In
addition, implementation of Objective 2 for
this species will provide Conservation of at
least 7 Core Areas, 3 large (>2,000
acres) and 4 smaller (>500 acres),
consisting of contiguous grassland or
grassland- dominated Habitat and
maintenance of occupancy and successful
breeding within these Core Areas.
However, the Plan does not require
surveys or Habitat assessments for this
species to inform assemblage of the
MSHCP Conservation Area. It is possible
that the overall acreage goal of 153,000
new acres of Conservation could be
The Incidental Take of the grasshopper
sparrow is difficult to quantify due to
our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of grasshopper
sparrow can be anticipated by the loss
of the number of acres of Habitat that
will become unsuitable for this
species. About 93,350 acres (71
percent) of Habitat for the grasshopper
sparrow will be outside the MSHCP
Conservation Area and individuals
within this Habitat will be subject to
Incidental Take consistent with the
Plan. A total of 110 acres, 4 percent ,
of the native grasslands will be outside
None 1 to 5 1** Reserve Managers will conduct surveys for grasshopper
sparrow on all conserved lands with suitable Habitat within 3
years after they are added to the MSHCP Conservation Area.
Results will be used to update the baseline distribution and
determine the number of occupied Core Areas as defined under
Objective 1 of the Species Account, and direct management
activities within the MSHCP Conservation Area. Reserve
Managers will maintain occupancy within 3 large Core Areas
(100%) and at least 3 of the 4 smaller Core Areas (75%) in at
least 1 year out of any 5 consecutive year period. Five of the 7
Core Areas will be demonstrated to support at least 20
grasshopper sparrow pairs with evidence of successful
reproduction within the first 5 years after permit issuance. Each
Reserve Manager responsible for a Core Area will evaluate the
condition of the grassland vegetation within the Core Area and
maintain a program to enhance, restore, and/or create
grassland, with an emphasis on native grasslands, within the
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-68
The MSHCP Conservation Area configuration is expected
to provide long-term conservation of the species.
However, the grasshopper sparrow is a grassland species
and as much as 70% of the mapped grassland within the
Plan Area would be outside the MSHCP Conservation
Area. Because the grasshopper sparrow does not
tolerate fragmentation and most of the grassland in the
Plan Area will be lost, Incidental Take of this species is
not included in this permit until conservation of the
species in the Plan Area has been demonstrated by
reaching Objective 2.
area, 3) Lake Mathews-Estelle Mountain, 4)
Badlands, 5) Box Springs, 6) Santa Rosa
Plateau/Tenaja, 7) Kabian Park, 8) Steele Peak, 9)
Sycamore Canyon, 10) Potrero, and 11) Mystic
Lake/San Jacinto Wildlife Area. Three of the 7 Core
Areas will be large, consisting of a minimum of
2,000 acres of grassland Habitat or
grassland-dominated Habitat (<20 percent shrub
cover). The other 4 Core Areas may be smaller but
will consist of at least 500 acres of contiguous
grassland Habitat or grassland-dominated Habitat
(<20 percent shrub cover). Five of the 7 Core
Areas will be demonstrated to support at least 20
grasshopper sparrow pairs with evidence of
successful reproduction within the first 5 years after
permit issuance. Successful reproduction is
defined as a nest which fledged at least one known
young.
achieved without conserving the 7 Core
Areas of grassland Habitat, leaving the
species vulnerable to extirpation in the
Plan Area and failing to meet the
objectives of the Plan. Under those
circumstances the Incidental Take of the
species will not be covered if the species
were to be listed during the life of the Plan.
of the MSHCP Conservation Area.
Three locations within the location
d a t a b a s e a r e w i t h i n t h e
Rural/Mountainous category. Seven
point localities will be outside of the
MSHCP Conservation Area, two of
which are recorded for residential land
use and may no longer be extant.
Core Area to keep the percent cover of grassland within 10% of
the baseline value in the areas defined in Objective 1 of the
Species Account.
great blue heron
(Ardea herodias)
2 The great blue heron is expected to be relatively well-
distributed throughout the MSHCP Plan Area within its
suitable Habitat. It likely occurs at almost all of the open
water bodies where emergent or riparian vegetation is
present and many of the playas and riparian drainages
that may provide foraging opportunities as well as many
irrigation ditches, ponds and areas where suitable
foraging opportunities are present. There are no locations
that have been recorded within the UCR database, thus
the distribution of this species is based on anecdotal
observation and expert opinion. Several areas are likely
Core Areas for this species, including Mystic Lake/San
Jacinto Wildlife Area, Santa Ana River/Prado Basin, Lake
Skinner, and Collier Marsh. The breeding locations,
which have been documented as active or historic, are
located at specific sites that require Conservation.
Because it is well known for using emergent Habitat,
riparian areas for nesting, ponds and other aquatic
Habitat, but has specific locations that are used for
breeding, it is assumed that this species will respond to
a landscape level of management with site-specific
requirements (e.g., breeding rookeries).
Objective 1: Include within the MSHCP Conservation Area at
least 16,560 acres of suitable nesting and foraging
Habitat for the great blue heron including
freshwater marsh, playas and vernal pools, riparian
scrub, woodland, and forest, and cismontane alkali
marsh.
Objective 2: Include within the MSHCP Conservation Area at
least the 3 known breeding locations, in the Santa
Ana River/Prado Basin (9,670 acres), Lake Skinner
area (Existing Core J; 24,370 acres), and Collier
Marsh areas (Proposed Linkage 2; 160 acres).
Objective 3: A 100-meter buffer will be established around the
Core Areas identified in Objective 2 as they are
incorporated into the MSHCP Conservation Area.
Conservation for this species will be
achieved by inclusion of at least 16,560
acres of suitable Conserved Habitat
including 9,840 acres of primary breeding
and foraging Habitat and 6,720 acres of
secondary foraging Habitat. Additionally,
the three core known or potential breeding
locations, Prado Basin/Santa Ana River,
Collier Marsh, and Lake Skinner area
within large blocks of Habitat are included
in the MSHCP Conservation Area. As
these Core Areas are incorporated into the
MSHCP Conservation Area, a 100-meter
buffer will be established around each
Core Areas. The current population size of
the great blue heron is unknown.
Implementation of the MSHCP, including
the Conservation of existing or potentially
occupied Habitat, core populations, and
current and historic nesting locations, is
anticipated to maintain the status of the
species and its Habitat within the MSHCP
Conservation Area.
The Incidental Take of the great blue
heron is difficult to quantify at this time
owing to our limited knowledge of the
precise location and extent of nesting
sites and the fact that losses may be
masked by fluctuations in abundance
and distribution during the life of the
permit. However, the level of Take of
great blue heron can be anticipated by
the loss of the number of acres of
Habitat that will be impacted or
become unsuitable for this species.
About 2,840 acres (22 percent) of
potential primary breeding and
foraging Habitat for the great blue
heron will be outside the Criteria Area
and Public/Quasi-Public Lands and
individuals within these areas are
subject to Incidental Take consistent
with the Plan. Approximately 1,160
acres (14 percent) of potential
secondary foraging Habitat for the
great blue heron will be outside the
None 8 General Management Measure 4. Reserve Managers will
manage the 3 known and historic breeding locations (Santa Ana
River/Prado Basin, Lake Skinner, and Collier Marsh) for Habitat
conversion and pesticide use. Reserve Managers will identify,
protect, buffer from disturbance with a 100-meter buffer, and
monitor through time nest sites in the MSHCP Conservation
Area. Reserve Managers will manage future-identified nesting
localities within the MSHCP Conservation Area. Reserve
Managers will ensure Habitat support functions within the
MSHCP Conservation Area by maintaining hydrological process,
specifically seasonal flows in the Santa Ana River.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-69
Criteria Area and Public/Quasi-Public
Lands and individuals within these
areas are subject to Incidental Take
consistent with the Plan. No rookeries
are anticipated to be subject to
Incidental Take.
least Bell’s vireo
(Vireo bellii pusillus)
2 The least Bell’s vireo is relatively well distributed
throughout the MSHCP Plan Area within suitable Habitat
in the Riverside Lowland and San Jacinto Foothills
Bioregions. It has relatively narrow and well documented
Habitat requirements. It occurs in several areas that
appear to be Core Areas including the Prado Basin/Santa
Ana River, Temescal Wash (including Alberhill Creek),
Mockingbird Canyon, Murrieta Creek, Temecula Creek,
Lake Skinner (including Rawson Canyon), Vail Lake,
Wilson Creek, and San Timoteo Canyon. Because it is
well known for using riparian scrub, forest and woodland,
has been well documented for its Habitat requirements,
occurs within specified and known Bioregions, but has
specific locations that are Core Areas, it will require
Conservation on a landscape level with site specific
considerations for Core Areas.
Objective 1: Include within the MSHCP Conservation Area at
least 9,430 acres of suitable Habitat including
riparian forest, woodland and scrub Habitat within
the Riverside Lowlands and San Jacinto Foothills
Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 8 Core Areas and interconnecting Linkages.
Core areas could include the following areas: 1) the
Prado Basin/Santa Ana River (9,670 acres); 2)
Temescal Wash including Alberhill Creek (includes
Subunit 3 of the Temescal Canyon Area Plan plus
Proposed Linkage 2 and Proposed Constrained
Linage 6; 4,290 acres); 3) Murrieta Creek (Subunit
1 of the Southwest Area Plan; 2,060 acres); 4)
Temecula Creek (Subunit 2 of the Southwest Area
Plan; 850 acres); 5) Lake Skinner/Diamond Valley
Lake area (including Rawson Canyon) (Existing
Core C, Proposed Extension of Existing Cores 5, 6,
7; 29,060 acres); 6) Vail Lake (Subunit 3 of the
Southwest Area Plan; 12,320 acres; 7) Wilson
Valley (Subunit 2 of the REMAP Area Plan; 33,540
acres) and 8) San Timoteo Canyon (Subunit 3 of
The Pass Area Plan; 2,290 acres). Each Core Area
will include at least 100 meters of undeveloped
landscape adjacent to the riparian woodland and
scrub Habitat where it occurs within the Criteria
Area.
Objective 3: Include within the MSHCP Conservation Area
additional areas within the Criteria Area identified as
important to the least Bell's vireo. This Objective
shall be met through implementation of the
Riparian/Riverine Areas and Vernal Pools policy
presented in Section 6.1.2 of the MSHCP, Volume
I. Wetland mapping assembled as part of that
Conservation for this species will be
achieved by the inclusion of at least 9,430
acres of suitable Conserved Habitat in the
MSHCP Conservation Area. Eight of the
Core Areas of the least Bell's vireo will be
conserved within large blocks of Habitat in
the MSHCP Conservation Area and
additional areas with few or no recorded
locations but that contain potential Habitat
are also conserved in accordance with the
wetland policy. The MSHCP has been
designed to preserve the very large
breeding population within the Prado
Basin/Santa Ana River area. Additionally,
the small patches of riparian Habitat and
the sites containing small numbers of
vireos are likely to be just as important as
the large population sites. These small
populations, documented above to be
largely preserved, are important to prevent
further isolation of remaining breeding
groups. Wetland mapping assembled as
part of the wetland policy shall be
reviewed as part of the project review
process and if riparian scrub and/or
woodland is identified on the wetland
maps and cannot be avoided, a focused
survey for least Bell's vireo shall be
conducted by a qualified biologist in
accordance with accepted protocols. If
survey results are positive, 90 percent of
the occupied portions of the property that
provide for long-term Conservation value
for the vireo shall be conserved in a
manner consistent with Conservation of
the vireo. For the Core Areas and the new
Approximately 2,780 acres of potential
Habitat for the least Bell's vireo will be
outside the Criteria Area and
Public/Quasi-Public designations, or
about 23 percent of the total potential
Habitat. It should be noted that
wetland Habitats located outside the
MSHCP Conservation Area, including
those present in the Mockingbird
Canyon area, will be subject to the
Riparian/Riverine Areas and Vernal
Pools policy presented in Section
6.1.2 of the MSHCP, Volume I.
However, the population of the least
Bell's vireo at Mockingbird Canyon is
not included in the MSHCP
Conservation Area. Of the 9 high
precision recent location points
located outside the MSHCP
Conservation Area, five are located
within suitable Habitat including
riparian scrub, southern willow scrub,
or open water/reservoir/pond and the
balance are located outside suitable
Habitat areas within existing
residential/ urban/exotic areas,
non-native grassland, or Riversidean
sage scrub.
Yes, see Section
6.1.2 (Protection
o f S p e c i e s
Associated with
Riparian/Riverine
Areas and Vernal
Pools)
3 3 General Management Measure 4. Reserve Managers will
ensure (once every 3 years) the continued use of, and
successful reproduction at, 75% of the known vireo occupied
Habitat (including any nesting locations identified in the MSHCP
Conservation Area in the future). Reserve Managers will manage
the known and future occurrences of this species with regard to
flood control measures, altered hydrology, competition with
non-native species, parasitism by brown-headed cowbird,
mining, grazing, and Habitat fragmentation. Reserve Managers
will buffer known and future nest sites from disturbance within
a 100-meter buffer. Reserve Managers will manage
future-identified nesting localities within the MSHCP
Conservation Area.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-70
policy shall be reviewed as part of the project
review process and if riparian scrub and/or
woodland is identified on the wetland maps and the
Habitat will not be avoided as part of the project, a
focused survey for least Bell's vireo shall be
conducted by a qualified biologist in accordance
with accepted protocol. If survey results are
positive, 90 percent of the occupied portions of the
property that provide for long-term Conservation
value for the vireo shall be conserved in a manner
consistent with Conservation of the vireo. This will
involve including 100 meters of undeveloped
landscape adjacent to the Habitat conserved.
Objective 4: Within the MSHCP Conservation Area, maintain
(once every 3 years) the continued use of, and
successful reproduction at 75 percent of the known
vireo occupied Habitat (including any nesting
locations identified in the MSHCP Conservation Area
in the future). Successful reproduction is defined
as a nest which fledged at least one known young.
areas to be conserved in accordance with
Objective 3, Conservation of suitable
Habitat will include 100 meters of
undeveloped landscape adjacent to the
Habitat conserved. Conservation of the
least Bell's vireo will provide for the
continued use of, and successful
reproduction at 75 percent of the known
vireo occupied Habitat (including any
nesting locations identified in the MSHCP
Conservation Area in the future).
The population viability analysis conducted
by the USFWS as part of the listing
package (USFWS 1998) indicated the least
Bell's vireo populations exceeded the
minimum viable population size with a less
than five percent probability of extinction
over a 100-year period. The results of
zero probability are due to the sizes and
growth rates of each population as well as
their interconnectedness through
dispersal.
Lincoln’s sparrow
(Melospiza lincolnii)-
breeding
1 The Lincoln's sparrow has a sparse and widespread
distribution throughout the MSHCP Plan Area within a
wide variety of Habitats. It occurs within the lowland and
foothills Bioregions of the Plan Area as a transient in the
spring and fall and may winter within the area. Although
there are few documented records of the species it has
been reported as common within the lowland and foothills
areas as a winter transient and migrant in a variety of
Habitats.
Because it is widespread as a wintering bird within the
Plan Area and population levels rangewide appear to be
stable, it is anticipated that this species will respond well
to a landscape level of management for its wintering
occurrence within the Plan Area.
Lincoln's sparrow is a rare breeder in the Plan Area within
the mountain Bioregions. There are approximately 1,050
Objective 1: Include within the MSHCP Conservation Area at
least 470 acres of suitable breeding Habitat
including montane riparian, riparian scrub and wet
meadow within the San Bernardino Mountains and
San Jacinto Mountains Bioregions.
Objective 2: Include within the MSHCP Conservation Area
190,390 acres of suitable wintering habitat
including chaparral, coastal sage scrub, grassland,
freshwater marsh, Peninsular juniper woodland,
riparian scrub, woodland, and forest, oak woodland
and forest, and Riversidean alluvial fan sage scrub
in Riverside Lowland and San Jacinto Foothills
Bioregions.
Objective 3: Within the MSHCP Conservation Area, maintain
occupancy within 3 large Core Areas (100 percent)
in at least 1 year out of 5 consecutive-year period.
Conservation for this species will be
achieved by inclusion of at least 470 acres
of suitable Conserved Habitat for breeding
and 190,390 acres of suitable Conserved
Habitat for wintering. Incidental Take of
nesting Lincoln's sparrow is not included
in this permit until Conservation of the
species in the Plan Area has been
demonstrated by reaching Objective 2.
The Incidental Take of the Lincoln's
sparrow is difficult to quantify due to
our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of Lincoln's sparrow
can be anticipated by the loss of the
number of acres of Habitat that will
become unsuitable for this species.
About 580 acres (55 percent) of
potential breeding Habitat for the
Lincoln's sparrow will be outside the
Criteria Area and Public/Quasi-Public
lands, and individuals within this
Habitat will be subject to Incidental
Take consistent with the Plan upon
satisfaction of Objective 2 above. Of
this area, approximately 30 acres (3
None 8 General Management Measures 1 and 4.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-71
acres of montane riparian and wet meadow in the Plan
Area. Approximately, 470 of these would be included in
the MSHCP Conservation Area. Because Lincoln's
sparrow nesting habitat is very restricted in the Plan Area,
55 percent of it would be lost, and there is no information
about the relative use or importance of the conserved
habitat versus the unconserved Habitat, Incidental Take of
nesting Lincoln's sparrow is not included in this permit
until conservation of the species in the Plan Area has
been demonstrated by reaching Objective 2.
In order for this species to become a Covered
Species Adequately Conserved, the following
conservation must be demonstrated: Include within
the MSHCP Conservation Area at least 100 acres in
3 Core Areas. Core Areas may include the
following: (1) Tahquitz Valley; (2) Round Valley; (3)
Garner Valley. The three Core Areas will be large,
consisting of a minimum of 50 acres of montane
meadow, wet montane meadow, and edges of
montane riparian or riparian scrub. The Core Areas
will be demonstrated to support at least 20
Lincoln's sparrow pairs with evidence of successful
reproduction within the first 5 years after permit
issuance. Successful reproduction is defined as a
nest which fledged at least one known young.
p e r c e n t ) w i l l b e w i t h i n
Rural/Mountainous designation areas.
Although these areas will not be part
of the managed MSHCP Conservation
A r e a a n d t h e e x i s t i n g
zoning/ordinances for these areas do
not preclude development and could
allow substantial fragmentation and/or
degradation of Habitat for proposed
covered species, the anticipated levels
of development in these areas may be
consistent with the continued
presence of the Lincoln's sparrow,
although Lincoln's sparrow tends to be
of insular distribution for nesting and
thus may be sensitive to fragmentation
of its suitable breeding Habitat. Take
of nests of Lincoln's sparrow is not
covered by the MSHCP Plan. About
219,670 acres (54 percent) of
potential wintering Habitat for the
Lincoln's sparrow will be outside the
Criteria Area and Public/Quasi-Public
Lands and individuals within this
Habitat will be subject to Incidental
Take consistent with the Plan.
loggerhead shrike
(Lanius ludovicianus)
2 The loggerhead shrike is widely but patchily distributed
throughout lower elevations of the Plan Area within
suitable Habitat. Habitat requirements of the loggerhead
shrike are known to include open sparse vegetation for
foraging and trees and shrubs for nesting. Core areas
include the Prado Basin/Santa Ana River, Lake
Mathews-Estelle Mountain, Wasson Canyon, Wildomar,
Temecula Creek, Wilson Valley, Quail Valley, San Jacinto,
Lake Perris/Mystic Lake/San Jacinto Wildlife Area,
Moreno Valley, Badlands, and scattered within the larger
area of Homeland/Winchester/ Menifee area. Given these
well known Habitat requirements and specific locations
that are considered Core Areas, it is anticipated that this
species will respond to a landscape level of management
with site specific requirements.
Objective 1: Include within the MSHCP Conservation Area at
least 167,590 acres of suitable foraging and nesting
Habitat for the loggerhead shrike including
agriculture, grassland, cismontane alkali marsh,
playa and vernal pool, desert scrubs, Riversidean
alluvial fan sage scrub, coastal sage scrub,
peninsular juniper woodland and scrub, riparian
scrub, woodland and forest, and oak woodlands
and forest.
Objective 2: Include within the MSHCP Conservation Area at
least 8 of 12 breeding and foraging locations
constituting Core Areas including Prado Basin/Santa
Ana River (9,670 acres), Lake Mathews-Estelle
Mountain area (Existing Core C plus Proposed
Extended Existing Core 2; 23,710 acres), Wasson
Conservation for this species will be
achieved by inclusion of at least 167,590
acres of suitable Conserved Habitat and 8
Core Areas which are composed of large
blocks of Habitat within the MSHCP
Conservation Area. The Core Areas are
provided with connections of Proposed or
Existing Linkages or Constrained Linkages
which connect the Proposed and Existing
Cores. In addition, the MSHCP Plan will
maintain (once every 8 years) the
continued use of, and successful
reproduction within, 75 percent of the
Core Areas. Successful reproduction is
defined as producing fledglings from a
nesting attempt. The current population
The Incidental Take of the loggerhead
shrike is difficult to quantify due to our
limited knowledge of its distribution
and abundance within the Plan Area.
The maximum level of Incidental Take
of loggerhead shrike can be
anticipated by the loss of the number
of acres of Habitat that will become
unsuitable for this species. About
318,540 acres (66 percent) of Habitat
for the loggerhead shrike will be
outside the Criteria Area and
Public/Quasi-Public designations and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Four core population
None 8 8 Reserve Managers will manage Habitat Linkages and movement
corridors between Core Population Areas in order to allow for
dispersal and movement of loggerhead shrikes throughout the
Plan Area and to areas outside of the planning area. Reserve
Managers will manage known and future occurrences of this
species for Habitat conversion and fertilizer and pesticide use.
Reserve Managers will ensure (once every 8 years) the
continued use of, and successful reproduction at, 75% of the
Core Areas.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-72
Canyon (Subunit 5 of the Elsinore Area Plan; 2,320
acres), Temecula Creek (Subunit 2 of the
Southwest Area Plan; 850 acres), Wilson Valley
(Subunit 2 of the REMAP Area Plan; 33,540 acres),
Quail Valley (Proposed Linkage 7; 3,400 acres),
Lake Perris/Mystic Lake/San Jacinto Wildlife Area
(Existing Core H; 17,470 acres), and Badlands
(Proposed Core 3; 24,920 acres).
Objective 3: Within the MSHCP Conservation Area, maintain
(once every 8 years) the continued use of, and
successful reproduction within, 75 percent of the
Core Areas. Successful reproduction is defined as
a nest which fledged at least one known young.
size of the loggerhead shrike is unknown,
however a sizable data base is present
within the UCR database and the species
appears well represented throughout the
MSHCP Plan Area except in the desert and
high elevation areas. The literature
documents the usage of desert areas,
thus desert Habitat has been included
within the Conservation analysis, however
data point locations are likely lacking due
to low survey effort in desert areas. Some
concerns have been expressed regarding
the impact the fire ant may have on the
loggerhead shrike. Currently there is one
known location of the fire ant. The area is
currently under quarantine and efforts are
being made to control and eradicate the
ant. The location is outside the MSHCP
Conservation Area and will have no effect
on the Conservation analysis of the
loggerhead shrike.
areas not included within the MSHCP
Conservation Area include the
Wildomar area, the area around San
Jacinto except for a few small vernal
pool preserve areas, Moreno Valley,
and the scattered locations within the
Homeland/ Winchester/ Menifee area.
MacGillivray’s warbler
(Oporornis tolmiei)
1 The MacGillivray's warbler has a sparse and widespread
distribution throughout the MSHCP Plan Area within a
variety of shrubby and riparian Habitats. It occurs within
the lowland and foothill Bioregions of the Plan Area as a
transient in the spring and fall but does not winter within
these Bioregions. It has been documented within the
literature as occurring commonly within the lowland and
foothills area as a transient that may use densely
vegetated shrub and scrub Habitats. However, there are
few documented records of the species, probably
because it is relatively common and observations may not
be recorded. It breeds within the Plan Area within the
mountain Bioregions in scrub and forested Habitats.
Although it has few documented records, the literature
documents its occurrence within the mountain regions of
the Plan Area and that the populations have increased
significantly within the mountain regions of the Plan Area.
Objective 1: Include within the MSHCP Conservation Area at
least 418,780 acres of riparian scrub, forest, and
woodland, oak woodland and forest, montane
coniferous forest, coastal sage scrub, chaparral,
Riversidean alluvial fan sage scrub, and desert
scrub Habitats for breeding, dispersal, and transient
movements. The breeding and transient movement
areas have been combined in this analysis because
this species uses the same Habitats for both parts
of the life cycle and there may be some overlap
between breeding areas and migration areas.
Conservation for this species will be
achieved by inclusion of at least 418,780
acres of suitable Conserved Habitat
including riparian scrub, forest, and
woodland, oak woodland and forest,
montane coniferous forest, coastal sage
scrub, chaparral, Riversidean alluvial fan
sage scrub, and desert scrub Habitats for
breeding, dispersal, and transient
movements. The MSHCP Conservation
Area has been designed to preserve the
large blocks of areas that contain a variety
of potentially suitable Habitat for foraging
use during migration as well as very large
blocks that contain potentially suitable
nesting Habitat for the species.
About 240,570 acres (36 percent) of
potential Habitat for the MacGillivray's
warbler will be outside the Criteria
Area or Publi c /Quasi-Publ i c
designations, and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan.
None 8 General Management Measures 1 and 4.
merlin
(Falco columbarius)
1 The merlin has a sparse and widespread distribution
throughout the MSHCP Plan Area within almost every
Habitat that occurs within the Plan Area. It occurs within
Objective 1: Include within the MSHCP Conservation Area at
least 193,840 acres of agriculture (field crops),
grassland, freshwater marsh, cismontane alkali
Conservation of this species will be
achieved by the inclusion of at least
193,840 acres of suitable Conserved
About 302,430 (61 percent) of
potential Habitat for the merlin will be
outside the Criteria Area and
None 8 General Management Measure 1.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-73
the Plan Area as a transient in the spring and fall and may
occasionally winter within the area. It does not require
specific conditions or locations for nesting because it
does not nest in the region. It is an opportunistic predator
that may forage anywhere in the area.
marsh, playa and vernal pool, desert scrubs,
Riversidean alluvial fan sage scrub, coastal sage
scrub, peninsular juniper woodland and scrub,
riparian scrub, woodland and forest, and oak
woodlands and forest Habitats.
Habitat including agriculture (field crops),
grassland, freshwater marsh, cismontane
alkali marsh, playa and vernal pool, desert
scrubs, Riversidean alluvial fan sage
scrub, coastal sage scrub, peninsular
juniper woodland and scrub, riparian
scrub, woodland and forest, and oak
woodlands and forest Habitats.
Additionally, although there are no Core
Areas for this species, several large
blocks of Habitat supporting the few
known foraging locations, and potential
foraging locations of the merlin will be
conserved in the MSHCP Conservation
Area, including the Prado Basin, Santa
Ana River, Lake Mathews-Estelle
Mountain, Wilson Creek, Mystic Lake/ San
Jacinto Wildlife Area, and Lake
Skinner/Diamond Valley Lake. These
Habitats and areas provide potential
foraging for the merlin during transient and
winter visits. The current population size
of the merlin is unknown and may vary
from year to year.
Public/Quasi-Public Lands and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. None of the major
areas, Prado Basin, Santa Ana River,
Mystic Lake/San Jacinto Wildlife Area,
Lake Skinner/Diamond Valley Lake
area, Wilson Valley, and Lake
Mathews-Estelle Mountain, where the
merlin has been observed in the past
are outside the MSHCP Conservation
Area.
mountain plover
(Charadrius montanus)
3 The mountain plover is narrowly distributed at relatively
few locations within the Plan Area in suitable Habitat. The
mountain plover uses playas and vernal pool, grassland,
and some agriculture Habitats during the winter in the
Plan Area. Although playa and vernal pool Habitat is well
identified for the Plan Area, it encompasses a relatively
small portion. The remaining Habitats, grassland and
agriculture land, are well distributed within the Plan Area
but the mountain plover uses only a small portion of what
is available. This species occurs within Core Areas that
it uses for its winter visits. It also requires specific
Habitat conditions within these Core Areas. Because the
mountain plover requires specific conditions, occurs in
few locations within a broad Habitat category, and uses
a well defined Habitat that is narrowly distributed, this
species will require site specific considerations,
protection of preferred Habitat, and species specific
Objective 1: Include within the MSHCP Conservation Area at
least 6,710 acres of suitable Habitat for the
mountain plover including playa and vernal pool
Habitat.
Objective 2: Include within the MSHCP Conservation Area at
least 4 Core Areas and interconnecting Linkages.
The Core Areas will consist of two "large" areas (at
least 2,500 acres of suitable Habitat: playa,
grassland, fallow agriculture) and two smaller areas
(at least 1,000 acres of suitable Habitat). Core
Areas shall include the following areas: San Jacinto
River floodplain (Proposed Core 5, Existing
Constrained Linkage C, Proposed Extension of
Existing Core 4, and Proposed Constrained Linkage
19; 7,320 acres), Mystic Lake/San Jacinto Wildlife
Area (Existing Core H; 17,470 acres), and the playa
Conservation for this species will be
achieved by inclusion of at least 6,710
acres of suitable Conserved Habitat and 4
Core Areas within large blocks of Habitat
in the MSHCP Conservation Area. The
Core Areas will consist of two large and
two small areas of at least 2,500 and
1,000 acres of suitable grassland,
agriculture, and playa Habitats,
respectively. An additional two potential
Core Areas also are included in the
MSHCP Conservation Area. The current
population size of the mountain plover is
unknown, due to its nomadic wintering
and transient movement habits and a
paucity of focused surveys for the
species. The Conservation Strategy for
The Incidental Take of the mountain
plover is difficult to quantify due to our
limited knowledge of its distribution
and abundance within the Plan Area.
The maximum level of Incidental Take
of mountain plover can be anticipated
by the loss of the number of acres of
Habitat that will become unsuitable for
this species. About 1,160 acres (15
percent) of potential wintering Habitat,
composed of playa and vernal pool
Habitat, for the mountain plover will be
outside the Criteria Area and
Public/Quasi-Public designations and
individuals within these areas are
subject to Incidental Take consistent
with the Plan. The Winchester area,
None 8 Reserve Managers will manage this species with regard to
farming, grazing, conversion of grassland Habitat and decline of
native herbivores.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-74
management conditions as a Group 3 species. west of Hemet (Proposed Noncontiguous Habitat
Block 7; 1,250 acres), and may include areas
adjacent to Lake Elsinore (Subunit 7 of Elsinore
Area Plan; 1,810 acres), Lake Skinner/Diamond
Valley Lake (Existing Core C plus Proposed
Extension of Existing Cores 5, 6, 7; 29,060 acres),
and Lake Matthews (Existing Core C plus Proposed
Extension of Existing Core 2; 23,710 acres).
the species depends on the preservation
to the extent possible of existing occupied
Habitat and the identification and
management of additional suitable Habitat
throughout the Plan Area using fire as a
management tool to create suitable Habitat
out of the agriculture lands within the
MSHCP Conservation Area.
historically a potential Core Area, is
outside of the MSHCP Conservation
Area, however this area may no longer
function as a Core Area.
mountain quail
(Oreortyx pictus)
1 The mountain quail has a reported wide distribution within
all of the mountain ranges west of the deserts and of the
northern interior of California. It predictably inhabits
suitable montane chaparral and brushy vegetation within
coniferous forests. This species has been recorded
within the U.S. Forest Service lands. It may occur
throughout a greater portion of suitable Habitat within the
MSHCP Plan Area, but no records exist in the MSHCP
database. Other sources conclude it is widely distributed
within suitable Habitat. Because it predictably uses
suitable brushy montane chaparral and occurs widely
throughout the Plan Area, it should respond well to a
landscape level of management.
Objective 1: Include within the MSHCP Conservation Area at
least 234,940 acres of suitable Habitat including
chaparral, oak woodland, and montane coniferous
woodland within large blocks in the Desert
Transition (27,000 acres), San Bernardino
Mountains (8,490 acres), San Jacinto Mountains
(126,160 acres) and Santa Ana Mountains (73,290
acres) Bioregions.
Conservation for this species will be
achieved by inclusion of at least 234,940
acres of suitable Conserved Habitat
including chaparral, oak deciduous
woodland and forest, and coniferous
forest within the Bioregions of the Desert
Transition, San Bernardino Mountains, San
Jacinto Mountains, and Santa Ana
Mountains. In addition, large blocks of
Habitat containing montane chaparral,
deciduous and coniferous woodland
Habitat with Habitat Linkages provided to
connect these large blocks of breeding
Habitat to lower elevation areas for
wintering use are in the MSHCP
Conservation Area.
About 93,800 acres (29 percent) of
potential Habitat for the mountain quail
will be outside the Criteria Area and
Public/Quasi-Public designations and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Additionally,
approximately 32,730 acres of
potential Habitat (10 percent) are
designated Rural/Mountainous and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan.
None 8 General Management Measure 1.
Nashville warbler
(Vermivora ruficapilla)
2 The Nashville warbler has been recorded in the literature
and within the UCR database in the San Bernardino
National Forest within the Plan Area as a likely breeding
bird. It is widely distributed but uncommon during
migration periods. Core breeding season areas are few
and important to Conservation of the species. In the Plan
Area, two core breeding season areas have been
identified, Lake Fulmor and Pine Cove. Additional
observations within the Plan Area primarily occur in
lowland Bioregions and probably represent spring or fall
transients. Because the Nashville warbler uses a variety
of Habitats within montane Bioregions for breeding
(including chaparral, riparian, deciduous woodland, and
coniferous woodland), occurs in a variety of Habitats for
migrant movements in all Bioregions (including brush and
scrub Habitats, desert scrub, and wooded Habitats), and
has specific locations that are identified as core breeding
season areas, it is included in Group 2.
Objective 1: Include within the MSHCP Conservation Area at
least 209,490 acres of suitable breeding Habitat
including chaparral, montane coniferous forest,
riparian scrub, woodland, and forest, and oak
woodlands in montane Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least three Core Areas. Core Areas will include the
known breeding locations at Lake Fulmor and Pine
Cove (represented by MSHCP Conservation Areas
within the San Bernardino National Forest; 149,750
acres) and one additional breeding area identified
within the MSHCP Conservation Area.
Objective 3: Include within the MSHCP Conservation Area at
least 209,290 acres of suitable dispersal or
migration Habitat and interconnecting Linkages,
including chaparral, coastal sage scrub, desert
Conservation for this species will be
achieved by inclusion of at least 418,780
acres of suitable Conserved Habitat for
breeding and dispersal/migratory
movements. In addition, three Core
Areas, including Pine Cove and Lake
Fulmor plus one additional location within
the Forest Service or MSHCP
Conservation Area, will be conserved
within the MSHCP Conservation Area. The
MSHCP has been designed to preserve
the large blocks of areas that contain a
variety of potentially suitable Habitats for
foraging use during migration as well as
blocks of currently unknown sizes that
contain potentially suitable nesting Habitat
for the species.
About 240,570 acres (about 36
percent) of potential breeding and
dispersal/migration Habitat for the
Nashville warbler will be outside the
Criteria Area or Public/Quasi-Public
designations, and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan. The area outside the MSHCP
Conservation Area includes 71,100
acres of breeding Habitat within the
mountain Bioregions and 169,470
acres of dispersal/ migration Habitat.
Of this, approximately 91,510 acres
(14 percent) of potential Habitat are
located within Rural/Mountainous
designation areas. While the
Rural/Mountainous areas are not
None 8 General Management Measure 4. Reserve Managers will
manage the known and future nesting locations of this species
for loss of Habitat due to modification by humans.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-75
scrubs, Riversidean alluvial fan sage scrub, and oak
woodland and forest for dispersal during migration.
These Habitats will be conserved in all Bioregions of
the Plan Area but do not include the acreage
included in Objective 1.
included wi th in the MSHCP
Conservation Area and will not be
managed for the benefit of wildlife, the
anticipated levels of development in
these areas will likely be consistent
with maintaining some Habitat for the
Nashville warbler. Two point locations
will be in the Rural/Mountainous zone.
Two high precision recent points are
located outside the MSHCP
Conservation Area and are located in
non-native grassland observed during
migration due to the lowland location.
The known nest location areas are not
outside the MSHCP Conservation
Area.
northern goshawk
(Accipiter gentilis)
2 The northern goshawk has been observed in two nest
locations within the MSHCP Plan Area. There is an
additional potential nest site within Tahquitz Valley and it
has generally been documented as occurring as a
breeding bird between an elevation of 2,000 to 2,700
meters (Garrett and Dunn 1981). It may occur as a
transient migrant almost anywhere else within the Plan
Area, has been found in semi-wooded areas in the
lowlands, and has been recorded as a migrant within the
vicinity of Hemet. The northern goshawk is widely
distributed outside of the Plan Area within North America,
but not in southern California. Due to its requirements for
a large territory as a large predatory bird, it would not be
expected to have a large population as a nesting species
within the Plan Area and within its preferred Habitat. It is
well studied and documented for using mature forest
lands. This species is considered to be a Group 2
species because its Conservation requires integration of
Habitat and site specific requirements.
Objective 1: Include within the MSHCP Conservation Area at
least 34,020 acres of suitable nesting and wintering
Habitat including oak woodland and forest and
montane coniferous Habitat within the San
Bernardino Mountains and San Jacinto Mountains
Bioregions. These Bioregions provide the suitable
nesting elevation of 2,000 to 2,700 meters as well
as lower elevation Habitat for wintering.
Objective 2: Within the MSHCP Conservation Area, protect and
buffer from disturbance the 2 known nest sites
(Lake Fulmor and San Jacinto Wilderness area), the
possible nest site within Tahquitz Valley and any
additional nesting locations. Protection is the
Conservation of at least 1.6 square kilometers of
suitable nesting Habitat within the MSHCP
Conservation Area around each known nest.
Buffering of the nest sites will include limiting
human activities within a 250 meter radius around
each of the nest site locations during the breeding
season.
Objective 3: Within the MSHCP Conservation Area, maintain
(once every three years), the continued use of, and
successful reproduction at a minimum of 75
percent of the known nesting localities. Successful
Conservation for this species will be
achieved by inclusion of at least 34,020
acres of suitable Conserved Habitat
including oak woodland and forest and
montane coniferous forest within the San
Jacinto Mountains and San Bernardino
Mountains Bioregions. In addition the
known nest site locations at Fulmor
Lake/Lawlor Lodge, in the vicinity of the
San Jacinto Wilderness area in the San
Jacinto Mountains, and the potential nest
site location at Tahquitz Valley are within
the MSHCP Conservation Area.
About 12,270 acres (27 percent) of
potential Habitat for the northern
goshawk will be outside the Criteria
Area and Public/Quasi-Public and
individuals within this Habitat will be
subject to Incidental Take consistent
with the Plan. No nest sites are
known outs ide the MSHCP
Conservation Area; however no
systematic surveys have been
conducted to locate nest sites for this
species outside the MSHCP
Conservation Area. No Take of active
nest sites will be permitted.
None 3 3 Reserve Managers will manage this species in order to
demonstrate continued (once every three years) use and
successful reproduction at a minimum of 75% of the known
nesting localities (including any nesting locations identified in the
MSHCP Conservation Area in the future). Reserve Managers will
protect and buffer from disturbance the known nest sites and
any additional nesting locations found in the MSHCP
Conservation Area. Buffering of the nest sites will include
limiting human activities within a 250 meter radius around each
of the nest site locations during the breeding season. Protection
is the Conservation at least 1.6 square kilometers of suitable
nesting Habitat around each known nest. Reserve Managers will
manage this species with regard to falconry and logging.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-76
reproduction is defined as a nest which fledged at
least one known young.
northern harrier
(Circus cyaneus)
3 The northern harrier occurs in a widely scattered
distribution predominantly throughout the lowland and
foothills Bioregions but may occur sparsely within
suitable Habitat in the mountain Bioregions and rarely as
a wintering bird within the Desert Transition Bioregion
within the Plan Area. Although there are a few known
breeding locations (Mystic Lake/San Jacinto Wildlife Area,
Lake Skinner area, Chino Hills, Lake Mathews-Estelle
Mountain, Lake Elsinore grasslands/Collier Marsh, Vail
Lake/Wilson Valley/east Temecula Creek, and Garner
Valley), most of the recorded northern harrier
occurrences are of wintering birds. This species has
specific Habitat requirements for breeding (primary
Habitats: cismontane alkali marsh, freshwater marsh,
playas and vernal pools, and grassland) but uses a wider
array of Habitat for foraging and wintering (secondary
Habitats: agriculture land, Riversidean alluvial fan sage
scrub, and coastal sage scrub). Although not
documented within the CNDDB and UCR databases, the
Prado Basin/Santa Ana River contains substantial
amounts of suitable Habitat and seems a likely future or
undocumented breeding location.
Objective 1: Include within the MSHCP Conservation Area at
least 50,020 acres of suitable primary breeding and
foraging Habitat for the northern harrier including
grasslands, freshwater marsh, playa and vernal
pool, and cismontane alkali marsh.
Objective 2: Include within the MSHCP Conservation Area the
known and historic breeding locations at 1) Mystic
Lake/San Jacinto Wildlife Area (Existing Core H;
17,470 acres), 2) the Lake Skinner/Diamond Valley
Lake area (Existing Core C plus Proposed Extension
of Existing Cores 5, 6, 7; 29,060 acres), 3) Chino
Hills (Proposed Extension of Existing Core 1; 270
acres), 4) Lake Mathews-Estelle Mountain (Existing
Core C plus Proposed Extension of Existing Core 2;
23,710 acres), 5) Lake Elsinore grasslands/Collier
Marsh (Subunit 7 of Elsinore Area Plan; 1,810
acres), 6) Vail Lake/Wilson Valley/east Temecula
Creek (Proposed Core 7; 50,000 acres), and 7)
Garner Valley (represented by suitable Conserved
Habitat within the San Jacinto Mountains Bioregion;
1,850 acres excluding 490 acres of range
allotment). Include within the MSHCP Conservation
Area an additional 17,560 acres of suitable breeding
Habitat at Potrero (represented by Subunit 1 of The
Pass Area Plan) and the Prado Basin/Santa Ana
River.
Objective 3: Include within the MSHCP Conservation Area at
least 104,140 acres of suitable secondary foraging
and wintering Habitat including agriculture land,
Riversidean alluvial fan sage scrub, and coastal
sage scrub.
Objective 4: Include within the MSHCP Conservation Area and
buffer from disturbance the known nesting locations
at the localities listed in Objective 2. Buffering of
the nest sites will include Conservation of Habitat
within a 250 meter radius around each of the nest
site locations and may include a variety of Habitats.
Conservation for this species will be
achieved by inclusion of at least 50,020
acres of suitable primary Conserved
Habitat and 104,140 acres of suitable
secondary Conserved Habitat and 7 Core
Areas and 2 potential Core Areas within
large blocks of Habitat in the MSHCP
Conservation Area. The MSHCP
Conservation Area will maintain (once
every 5 years) the continued use of, and
successful reproduction at 75 percent of
the known nesting areas (including any
nesting locations identified in the MSHCP
Conservation Area in the future) and will
conserve within the MSHCP Conservation
Area and buffer from disturbance the
known nesting locations within the core
breeding areas listed above. Buffering of
the nest sites will include Conservation of
Habitat within a 250 meter radius around
each of the nest site locations and may
include a variety of Habitats. The current
population size of the northern harrier is
unknown and most locations are
observations of wintering/migrating birds.
However, historic breeding locations
occur within the Mystic Lake/San Jacinto
Wildlife Area, Lake Skinner, Lake Elsinore
g rass l a nd/Co l l i e r Marsh , Lake
Mathews-Estelle Mountain, Chino Hills,
and Vail Lake/Wilson Valley/eastern
Temecula Creek, and Garner Valley areas
which are within conserved areas.
The Incidental Take of the northern
harrier is difficult to quantify at this
time owing to our limited knowledge of
the precise location and extent of
nesting sites and the fact that losses
may be masked by fluctuations in
abundance and distribution during the
life of the permit. However, the level
of Take of the northern harrier can be
anticipated by the loss of the number
of acres of Habitat that will become
unsuitable for this species.
About 284,860 acres (65 percent) of
potential Habitat for the northern
harrier will be outside the Criteria Area
and Public/Quasi-Public designations,
and individuals within this Habitat will
be subject to Incidental Take
consistent with the Plan. Of the
primary Habitats, 105,380 acres will
be outside the MSHCP Conservation
Area, or about 68 percent of the
potential primary Habitat, most of
which is grassland Habitat. Of the
secondary Habitats, about 179,480
acres will be outside the MSHCP
Conservation Area, or about 63
percent of the potential secondary
Habitats, most of which is agriculture
Habitat. It should also be noted that
wetland Habitats located outside the
MSHCP Conservation Area will be
subject to the Protection of Species
Associated with Riparian/Riverine
Areas and Vernal Pools policy
presented in Section 6.1.2 of the
MSHCP, Volume I. Based on recent
breeding location information, a
breeding location is recorded for
None 5 5 Reserve Managers will manage this species in order to maintain
(once every 5 years) the continued use of, and successful
reproduction at, 75% of the known nesting areas (including any
nesting locations identified in the MSHCP Conservation Area in
the future). Reserve Managers will conserve and buffer from
disturbance the known nesting locations listed in Objective 2 of
the Species Account. Buffering will include the Conservation of
Habitat within a 250 meter radius around each of the nest site
locations and may include a variety of Habitats. Particular
management emphasis will be given to Habitat loss and
conversion, fire and fire abatement measures during the early
stages of the breeding cycle.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-77
Objective 5: Within the MSHCP Conservation Area, maintain
(once every 5 years) the continued use of, and
successful reproduction at 75 percent of the known
nesting areas (including any nesting locations
identified in the MSHCP Conservation Area in the
future). Successful reproduction is defined as a
nest which fledged at least one known young.
Garner Valley. A total of 490 acres of
this Core breeding Area is located
within the Garner Range Allotment and
is considered to not be conserved
although it is within the San
Bernardino National Forest. No Take
of active nest sites will be permitted.
A total of 36 point localities will be
outside of the MSHCP Conservation
Area, 10 of which are recorded for
developed areas.
Other areas not conserved where the
northern harrier has been documented
to occur but that have not been
documented for breeding locations
include parts of the Temecula/Murrieta
Hot Springs area, San Jacinto, Moreno
Valley, Hemet, Santa Rosa Plateau
outside of the Santa Rosa Plateau
Nature Reserve, and Beaumont.
osprey
(Pandion haliaetus)
2 The osprey is relatively widely distributed throughout the
MSHCP Plan Area within suitable Habitat. It occurs at
almost every open water body within the Plan Area.
There are several areas that appear to be Core Areas
including the Santa Ana River, Lake Mathews, Lake
Elsinore, Canyon Lake, Vail Lake, Lake Skinner, Lake
Perris, Mystic Lake, and Lake Hemet. Although it has not
been documented to nest within the Plan Area, there is
suitable Habitat for nesting and nesting locations will be
important to conserve.
Objective 1: Include within the MSHCP Conservation Area at
least 10,340 acres of open water Habitat at the
following seven locations: Lake Mathews, Diamond
Valley Lake, Lake Skinner, Lake Elsinore, Vail Lake,
Lake Perris, and Mystic Lake/San Jacinto Wildlife
Area.
Objective 2: Include within the MSHCP Conservation Area at
least 5,520 acres of suitable riparian and open
water Habitat within the Prado Basin and Santa Ana
River.
Objective 3: A 100-meter buffer will be established around open
water bodies identified in Objective 1 as they are
incorporated into the MSHCP Conservation Area.
Conservation for this species will be
achieved by inclusion of at least 15,860
acres of suitable Conserved Habitat,
including open water and riparian Habitat
in the Prado Basin/Santa Ana River, and
the establishment of a 100-meter buffer
around the open water bodies as they are
incorporated into the MSHCP Conservation
Area. The current population size of the
osprey is unknown, and it has not been
confirmed as to whether or not it is a
breeding bird in the MSHCP Plan Area.
About 2,140 acres (12 percent) of
potential Habitat for the osprey will be
outside the Criteria Area and
Public/Quasi-Public designations and
individuals in this Habitat will be
subject to Incidental Take consistent
with the Plan. Potential Core
population Areas not included within
the MSHCP Conservation Area include
Canyon Lake and Lake Hemet. No
Take of active nest sites will be
permitted.
None 8 General Management Measure 4. Reserve Managers will
manage any nesting locations known or identified in the MSHCP
Conservation Area in the future. Reserve Managers (including at
Lake Perris) will identify, protect, buffer from disturbance with a
100-meter buffer (buffering consistent with the recreational
activities at Lake Perris), and monitor through time existing and
future-identified nesting and foraging Habitat in the MSHCP
Conservation Area. Management emphasis will be given to
logging and firewood harvesting and pesticide use.
peregrine falcon
(Falco peregrinus)
1 The peregrine falcon has a wide but sparse distribution
throughout the MSHCP Plan Area within its suitable
Habitat. Although is nest site is located on the County
Building in downtown Riverside, it is predominantly a fall
transient with occasional wintering and rare spring
Objective 1: Include within the MSHCP Conservation Area at
least 10,340 acres of open water Habitat at the
following seven open water bodies and one
drainage: Lake Mathews, Diamond Valley Lake,
Lake Skinner, Lake Elsinore, Vail Lake, Lake Perris,
Conservation for this species will be
achieved by inclusion of at least 10,340
acres of suitable Conserved Habitat
including open water at Lake Mathews,
Diamond Valley Lake, Lake Skinner, Lake
Approximately 2,140 acres (12
percent) of potential Habitat for the
peregrine falcon will be outside the
Criteria Area and Public/Quasi-Public
land designations and individuals
None 8 General Management Measure 4. Reserve Managers will
manage the known and future occurrences of this species with
regard to pesticide use. Reserve Managers will identify, protect,
buffer from disturbance with a 100-meter buffer, and monitor
through time the open water bodies identified in Objective 1 of
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-78
transient movements. It occurs or has occurred at
almost every open water body within the Plan Area and
occurs within the Prado Basin on a regular basis.
Mystic Lake/San Jacinto Wildlife Area, and Prado
Basin/Santa Ana River and the 5,520 acres of
suitable riparian Habitat within the Prado
Basin/Santa Ana River.
Objective 2: A 100-meter buffer will be established around open
water bodies identified in Objective 1 as they are
incorporated into the MSHCP Conservation Area.
Elsinore, Vail lake, Lake Perris, Mystic
Lake/San Jacinto Wildlife Area, and Prado
Basin/Santa Ana River and 5,520 acres of
suitable Conserved Habitat including
riparian Habitat within the Prado Basin/
Santa Ana River. The current population
size of the peregrine falcon is unknown
because it is a casual visitor to the area.
There is one nest site currently known for
the County Building in downtown
Riverside and although this nest site is
outside the MSHCP Conservation Area, no
Take of raptor nests is authorized. The
species appears to respond to elevated
waterfowl populations within reservoirs
during migration and winter periods.
Therefore, local densities will be expected
to fluctuate.
within these areas will be subject to
Incidental Take consistent with the
Plan. Although the one known nest
site is located outside of the MSHCP
Conservation Area, no Take of raptor
nest sites is authorized by the Plan.
the Species Account.
prairie falcon
(Falco mexicanus) -
breeding
1 The prairie falcon has a wide but sparse distribution over
many Habitat types within the Plan Area. There is one
clumped distribution within the Mystic Lake/San Jacinto
Wildlife area. No nest sites are known for the area
although one could be present within the Vail Lake area
and one may have been historically present possibly
within the Lakeview Mountains area.
Objective 1: Include within the MSHCP Conservation Area at
least 141,510 acres of suitable open and scrub
Habitats including grassland, playa and vernal pool,
Riversidean alluvial fan sage scrub, coastal sage
scrub, and desert scrubs. Conservation will occur
in large blocks throughout the Plan Area, including
at a minimum: Mystic Lake/San Jacinto Wildlife
Area (2,690 acres), Lakeview Mountains (7,150
acres), and Vail Lake (12,320 acres).
Conservation of this species will be
achieved by inclusion of at least 141,510
acres of suitable Conserved Habitat
including grassland, playa and vernal pool,
Riversidean alluvial fan sage scrub,
coastal sage scrub, and desert scrubs. In
addition, several large blocks of Habitat
supporting the current known and
potential foraging and potential or historic
nesting locations of the prairie falcon will
be conserved in the MSHCP Conservation
Area, including the Vail Lake, Lakeview
Mountains, and Mystic Lake/San Jacinto
Wildlife Area. Although it occurs
repeatedly in a number of conserved
locations, the current population size of
the prairie falcon in the Plan Area is
unknown.
Approximately 182,490 acres (56
percent) of potential Habitat for the
prairie falcon will be outside the
MSHCP Conservation Area and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan.
None 8 Reserve Managers will manage cliff faces capable of supporting
nesting prairie falcons.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-79
purple martin
(Progne subis)
3 The purple martin has been recorded in very low numbers
spread widely over the Plan Area. Almost all of the
observations are of migrating individuals except for the
vicinity of the known nesting locations and potential
nesting locations. It will forage on the wing in a variety of
Habitats during migration, however, it has very
specialized nest site requirements that are not clearly
defined. It is typically found in association with water,
either within a drainage or open water body. Potential
nesting areas occur in riparian, oak woodland, and
montane coniferous Habitats, however, only two nest
sites are documented within Habitats that are widespread
within the Plan Area. The two recorded nest sites within
the Plan Area including Dripping Springs (near Vail Lake)
and Thomas Mountain (south of Hemet Lake). There is
one historic nest site at Hemet Lake for which the current
status is unknown. A possible nest site may be present
within the Cleveland National Forest near the western
boundary of the Plan Area. Because the purple martin
requires specific and undefined conditions for its nesting
location which apparently occur rarely within a broadly
distributed variety of Habitats, the purple martin will
require Conservation on a landscape level to provide
general foraging and nesting Habitat, site specific
considerations to conserve nest site locations, and
species specific management conditions.
Objective 1: Include within the MSHCP Conservation Area
45,020 acres of suitable nesting and foraging
Habitat for the purple martin including riparian
scrub, forest, and woodland, deciduous woodland
and forest, and montane coniferous forest.
Objective 2: Include within the MSHCP Conservation Area the 2
Core Areas including Dripping Springs (represented
by Vail Lake Subunit 3 of Southwest Area Plan;
12,320 acres) and Thomas Mountain (represented
by the San Bernardino National Forest; 149,750
acres).
Objective 3: Include within the MSHCP Conservation Area
micro-Habitat (i.e., groups of large snags) in
potential nesting Habitat.
Conservation for this species will be
achieved by inclusion of at least 45,020
acres of suitable Conserved Habitat in the
MSHCP Conservation Area. Additionally
162,070 acres of Core Areas including the
two documented nest sites and the one
potential nest site within large blocks of
Habitat will be included in the MSCHP
Conservation Area. Implementation of
Objective 3 for this species will conserve
the micro-Habitat (i.e., groups of large
snags) in potential nesting Habitat of the
purple martin.
About 17,810 acres (about 28
percent)of potential Habitat for the
purple martin will be outside the
Criteria Area and Public/Quasi-Public
designations, and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan. Of this, approximately 4,840
acres (8 percent) will be within
Rural/Mountainous designation areas.
Although these areas will not be part
of the managed MSHCP Conservation
Area the anticipated levels of
development in these areas will likely
be consistent with the continued
presence of the purple martin. The
historic breeding location of the purple
martin at Hemet Lake is not included
within the MSHCP Conservation Area,
however this site may no longer be
viable and may not be active.
None 8 General Management Measure 4. Reserve Managers will
manage the two known nest sites for house sparrows or
European starlings competing for the nest cavities. If
competition is occurring, removal of house sparrows or
European starlings may be required. Reserve Managers will
augment nesting areas with potential artificial nest sites using
gourds, if possible. Management actions may include closing
roads near a nest site, fencing hiking trails, or fencing potential
access points during the breeding season of the purple martin.
Reserve Managers will manage known and future identified
nesting localities and protect micro-Habitat (i.e., groups of large
snags) in potential nesting Habitat.
sharp-shinned hawk
(Accipiter striatus)
1 The sharp-shinned hawk has a widespread distribution
throughout the MSHCP Plan Area within suitable foraging
Habitat. It occurs within the Plan Area as a transient in
the spring and fall and may winter within the area. It has
not been recorded as breeding within the Plan Area
although Habitat is available for that purpose and it has
been recorded in the mountainous areas during the
summer. It is an opportunistic predator that may forage
anywhere within suitable Habitats in the area and has
been recorded throughout the entire Plan Area.
Objective 1: Include within the MSHCP Conservation Area at
least 20,500 acres of montane coniferous forest for
breeding areas (none have been documented) and
398,280 acres of riparian scrub, woodland, and
forest, oak woodland and forest, chaparral, coastal
sage scrub, desert scrub, and Riversidean alluvial
fan sage scrub for foraging during wintering and
transient movements.
Conservation for this species will be
achieved by inclusion of at least 418,780
acres of suitable Conserved Habitat
including montane coniferous forest for
potential breeding areas and riparian
scrub, woodland, and forest Habitat, oak
woodland and forest, chaparral, coastal
sage scrub, desert scrub, and Riversidean
alluvial fan sage scrub for foraging. The
MSHCP Conservation Area includes
preservation of large blocks of areas that
contain a variety of potentially suitable
Habitat for foraging use during winter and
migration as well as very large blocks that
contain potentially suitable nesting Habitat.
About 240,570 acres (about 36
percent) of potential Habitat for the
sharp-shinned hawk will be outside
t h e C r i t e r i a A r e a a n d
Public/Quasi-Public designations, and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Of this, approximately
91,510 acres of potential Habitat (14
percen t) are located wi th in
Rural/Mountainous designation areas.
While the Rural/ Mountainous areas
are not included within the MSHCP
Conservation Area and will not be
managed for the benefit of wildlife, the
anticipated levels of development
None 8 General Management Measure 1.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-80
areas will likely be consistent with
maintaining some Habitat for the
sharp-shinned hawk.
Southern California
rufous-crowned sparrow
(Aimophila ruficeps
canescens)
2 The Southern California rufous-crowned sparrow is widely
distributed throughout the MSHCP Plan Area within
suitable Habitat in the Riverside Lowlands, Santa Ana
Mountains, and San Jacinto Foothills Bioregions. It is
absent from higher elevation Bioregions and the Desert
Transition Bioregion. The Southern California rufous-
crowned sparrow occurs within several Core Areas
including Lake Mathews-Estelle Mountain, Gavilan
Plateau, Box Springs Mountains, Lake Perris, Badlands,
west of Lake Elsinore, Wasson Canyon, Santa Rosa
Plateau, Lake Skinner, De Portola Road east of Bachelor
Mountain, Wilson Valley, and the Hogbacks. The
Southern California rufous-crowned sparrow is a
year-round resident but may make movements to lower
elevations for the winter. Because rufous-crowned
sparrow Habitat requirements are well known, the species
occurs widely within these Habitats in the Riverside
lowlands, San Jacinto Foothills, and Santa Ana Mountains
Bioregions, and specific Core Areas exist for the species,
it is anticipated that Southern California rufous-crowned
sparrow will respond well to a landscape level of
management with site specific requirements.
Objective 1: Include within the MSHCP Conservation Area at
least 82,640 acres of suitable primary Habitat for
the Southern California rufous-crowned sparrow
including coastal sage scrub, Riversidean alluvial
fan sage scrub, and desert scrubs in Riverside
Lowland, Santa Ana Mountains, and San Jacinto
Foothills Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 9 Core Areas and interconnecting Linkages.
Core areas will include: Lake Mathews-Estelle
Mountain (Existing Core C plus Proposed Extension
of Existing Core 2; 23,710 acres), Box Springs
Mountains (Existing Noncontiguous Habitat Block A
plus Proposed Constrained Linkage 8; 2,920 acres),
Lake Perris (Existing Core H; 17,470 acres), the
Badlands (Proposed Core 3; 24,920 acres), west of
Lake Elsinore (represented by Existing Core B;
71,490 acres), Wasson Canyon (Subunit 5 of
Elsinore Area Plan; 2,320 acres), Lake Skinner
(including Diamond Valley Lake; Existing Core C
plus Proposed Extension of Existing Cores 5, 6, 7;
29,060 acres), Wilson Valley (Subunit 2 of REMAP
Area Plan; 33,540 acres), and the Hogbacks
(Proposed Core 2; 5,050 acres).
Objective 3: Include within the MSHCP Conservation Area at
least 174,620 acres of suitable secondary Habitats
for the Southern California rufous-crowned sparrow
including chaparral and grasslands in Riverside
Lowland, Santa Ana Mountains, and San Jacinto
Foothills Bioregions.
Conservation for this species will be
achieved by inclusion of at least 82,640
acres of suitable primary Conserved
Habitat and 174,620 acres of suitable
secondary Conserved Habitat and 9 of 12
Core Areas within large blocks of Habitat
in the MSHCP Conservation Area. In
addition, 50 recent and high precision
locations will be inside the Criteria Area or
Public/Quasi-Public lands, all of which are
recorded for the suitable Habitat of the
southern California rufous-crowned
sparrow. Conservation also will be
provided for the Habitat Linkages between
Core Areas and areas important for
dispersal. The current population size of
the southern California rufous-crowned
sparrow is unknown, however the species
is well documented as to the Habitat that
it uses and locations that constitute Core
Areas.
The Incidental Take of the Southern
California rufous-crowned sparrow is
difficult to quantify due to our limited
knowledge of its distribution and
abundance within the Plan Area. The
maximum level of Incidental Take of
Southern California rufous-crowned
sparrows can be anticipated by the
loss of the number of acres of
potential Habitat that will become
unsuitable for this species. About
70,980 acres of potential primary
Habitat for the Southern California
rufous-crowned sparrow will be
outside the Criteria Area and
Public/Quasi-Public designations, or
about 46 percent of the total potential
primary Habitat. Approximately
175,010 acres of secondary Habitat
for the Southern Cal i forn ia
rufous-crowned sparrow will be
outside the MSHCP Conservation
Area, about 50 percent of the potential
secondary Habitat. Individuals within
these areas are subject to Incidental
Take consistent with the Plan. Of this,
approximately 26,200 acres (17
percent) of potential primary Habitat
and 58,680 acres (17 percent) of
potential secondary Habitat are located
within Rural/Mountainous designation
areas. Core Areas not conserved
within Criteria Area and Public/
Quasi-Public designations include the
Gavilan Plateau, Santa Rosa Plateau,
and De Portola Road east of Bachelor
Mountain. A total of 33 (22 percent)
of the recent and high precision
locations will be in the Rural/
None 8 Each Reserve Manager responsible for a Core Area will conduct
baseline surveys as necessary (i.e., where no existing
information exists) to determine the number of acres occupied
by rufous-crowned sparrows within the Core Area. Each
Reserve Manager responsible for a Core Area will evaluate the
condition of the sage scrub vegetation within the Core Area and
maintain a program to enhance and/or create sage scrub within
the Core Area to keep the coastal sage scrub vegetation within
10% of the acreage defined in Objective 1 of the Species
Account. Reserve Managers will maintain occupancy of at least
80 percent of the occupied rufous-crowned sparrow Habitat, as
determined using existing information and baseline surveys,
within each Core Area. Additional management measures will
address predation and harassment by domestic cats and dogs
and competition from non-native species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-81
Mountainous zone and 66 (44
percent) are outside the MSHCP
Conservation Area. Of the 66 points
located outside the MSHCP
Conservation Area, 32 are mapped in
existing residential/urban/exotic areas
and may no longer be extant.
southwestern willow
flycatcher
(Empidonax traillii
extimus)
3 The southwestern willow flycatcher is narrowly
distributed at few locations within the Plan Area.
Although the preferred Habitat, riparian woodland and
select other forests, is well distributed within all
Bioregions and spread over the entire Plan Area, few
current locations for the willow flycatcher have been
documented. The southwestern willow flycatcher has
specific Habitat requirements and conditions within the
larger Habitat category within which it occurs. Because
it requires specific Habitat conditions, occurs in few
locations within a larger Habitat category, and occurs in
low densities, the southwestern willow flycatcher will
require Conservation on a landscape level, site specific
considerations for the known locations, and species
specific management conditions as a Group 3 species.
Objective 1: Include within the MSHCP Conservation Area at
least 10,580 acres of suitable Habitat for the
southwestern willow flycatcher including montane
riparian forest, riparian scrub, arundo/riparian
forest, riparian forest, southern cottonwood/willow
riparian, southern sycamore/alder riparian
woodland, and southern willow scrub.
Objective 2: Include within the MSHCP Conservation Area at
least 6 Core Areas and interconnecting Linkages.
Core areas shall include the following areas: 1)
Prado Basin/Santa Ana River, including Chino
Creek, the Santa Ana River both up- and
downstream of the Prado Dam, and the seven 2001
territories (9,670 acres); 2) Temescal Wash
including Alberhill Creek (estimated as Subunit 3
plus Proposed Constrained Linkage 6 and Proposed
Linkage 2; 4,290 acres); 3) Murrieta Creek
(Proposed Constrained Linkage 13; 1,400 acres); 4)
Temecula Creek (Proposed Constrained Linkages
14 and 24; 830 acres); 5) San Timoteo Canyon
(Proposed Linkages 5, 12 and Proposed Linkage
22; 2,140 acres); 6) Vail Lake (Subunit 3 of
Southwest Area Plan; 12,320 acres). Each Core
Area will include at least 100 meters of
undeveloped landscape adjacent to the riparian
woodland and scrub Habitat and contain
unfragmented Habitat and landscape Linkages to
other Core Areas.
Objective 3: Include within the MSHCP Conservation Area
additional areas within the Criteria Area identified as
important to the southwestern willow flycatcher.
This Objective shall be met through implementation
Conservation for this species will be
achieved by inclusion of at least 10,580
acres of suitable Conserved Habitat and 6
Core Areas and the additional current
known locations within large blocks of
Habitat in the MSHCP Conservation Area.
The MSHCP Conservation Area will
maintain (once every 3 years) the
continued use of, and successful
reproduction at 75 percent of the known
southwestern willow flycatcher occupied
Core Areas (including any nesting
locations identified in the MSHCP
Conservation Area in the future).
Implementation of Objective 3 will provide
the Conservation of additional areas within
the Criteria Area that are identified as
important to the southwestern willow
flycatcher through wetland mapping
assembled as part of the Protection of
Species Associated with Riparian/Riverine
Areas and Vernal Pools Policy (Section
6.1.2). This objective provides for
Conservation of 100 percent of the
occupied portions of the property that
provide for long-term Conservation value
for the flycatcher. The survey
requirements within this objective will be
waived upon demonstrating that at least
two Core Areas contain at least 10
successful flycatcher breeding pairs and
at least four additional Core Areas each
support breeding populations of at least 5
pairs of flycatchers.
About 3,220 acres (about 23 percent)
of suitable southwestern willow
flycatcher Habitat will be outside the
Criteria Area and Public/Quasi-Public
Lands and individuals within these
areas may be subject to Incidental
Take. However, implementation of the
Protection of Species Associated with
Riparian/Riverine Areas and Vernal
Pools (Section 6.1.2) and adjacency
policies, avoidance of clearing of
suitable Habitat in the breeding season
and protection and management of 90
percent of the area with Conservation
value of any site where the species is
found will minimize Take of the
species. A total of 5 of 17 high
precision points are located outside
the MSHCP Conservation Area, all of
which are located outside suitable
Habitat areas within existing
residential/urban/ exotic areas,
non-native grassland, or open water.
None of the Core Areas for the species
and none of the current known
locations are outside of the MSCHP
Conservation Area.
Yes, see Section
6.1.2 (Protection
o f S p e c i e s
Associated with
Riparian/Riverine
Areas and Vernal
Pools).
3 3 General Management Measure 4. Reserve Managers will
manage this species in order to maintain (once every 3 years)
the continued use of, and successful reproduction at, 75% of the
known southwestern willow flycatcher occupied Core Areas
(including any nesting locations identified in the MSHCP
Conservation Area in the future). Reserve Managers will develop
a species-specific management plan or general management
plan element that clearly identifies Conservation measures to
ensure, to the extent possible, that the species has sufficient
suitable Habitat and that the species is not impacted by such
environmental perturbations as fire, environmental contaminants,
fragmentation-induced phenomena such as mesopredator
release, and the direct and indirect impacts associated with
cattle grazing and the presence of non-native plants and
animals. Reserve Managers will manage the riparian Habitats
within the current documented locations of the southwestern
willow flycatcher at the Prado Basin, Santa Ana River, Temecula
Creek, Vail Lake, Box Springs Mountain, Alberhill Creek, Santa
Rosa Plateau Nature Reserve, Lake Skinner, Bautista Creek, and
Potrero Creek. Reserve Managers will maintain or improve the
potential flycatcher Habitat (including potential Core and satellite
Areas and Habitat Linkages) in and along Temescal Wash,
Wasson Canyon, Murrieta Creek, Wilson Valley, Bautista Creek,
Tucalota Creek, and San Timoteo Canyon. Management
emphasis will be given to maintaining or improving hydrological
processes within the drainages that support the potential Habitat
and by selectively restoring, rehabilitating or revegetating all
such areas that are currently fragmented or otherwise degraded
by, for instance, infestations of exotic plants and animals.
Reserve Managers will also manage this species for cowbird
parasitism. Reserve Managers will buffer known and future nest
sites from disturbance within a 100-meter buffer.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-82
of the Protection of Species Associated with
Riparian/Riverine Areas and Vernal Pools Policy
presented in Section 6.1.2 of the MSHCP, Volume
I. Wetland mapping assembled as part of that
policy shall be reviewed as part of the project
review process and if suitable southwestern willow
flycatcher Habitat, defined as cottonwood or willow
riparian Habitat adjacent to flowing water or
saturated soils, is identified on the wetland maps
and cannot be avoided, a focused survey for
southwestern willow flycatcher shall be conducted
by a qualified biologist in accordance with accepted
protocol. If survey results are positive, 100 percent
of the occupied portions of the property that provide
for long-term Conservation value for the flycatcher
shall be conserved in a manner consistent with
Conservation of the flycatcher. This will involve
including 100 meters of undeveloped landscape
adjacent to the Habitat conserved. The survey
requirements within this objective will be waived
upon demonstrating that at least two Core Areas
contain at least 10 successful flycatcher breeding
pairs and at least four additional Core Areas each
support breeding populations of at least 5 pairs of
flycatchers.
Objective 4: Within the MSHCP Conservation Area, maintain
(once every 3 years) the continued use of, and
successful reproduction at 75 percent of the known
southwestern willow flycatcher occupied Core
Areas (including any nesting locations identified in
the MSHCP Conservation Area in the future).
Successful reproduction is defined as a nest which
fledged at least one known young.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-83
Swainson’s hawk
(Buteo swainsoni)
1 The Swainson's hawk has a sparse and widespread
distribution throughout the MSHCP Plan Area within
almost every Habitat that occurs within the Plan Area. It
occurs within the Plan Area as a transient in the spring
and fall and may occasionally winter within the area. It
does not require specific conditions or locations for
nesting because it does not nest in the region. It is an
opportunistic predator that may forage anywhere in the
area.
Objective 1: Include within the MSHCP Conservation Area at
least 141,960 acres of grassland, cismontane alkali
marsh, playa and vernal pool, Riversidean alluvial
fan sage scrub, coastal sage scrub, agriculture
(field crops) and forested areas containing potential
perch and roost sites including peninsular juniper
woodland and scrub, and riparian scrub, woodland
and forest Habitats.
Conservation for this species will be
achieved by inclusion of at least 141,960
acres of suitable Conserved Habitat
including grassland, cismontane alkali
marsh, playa and vernal pool, Riversidean
alluvial fan sage scrub, coastal sage
scrub, agriculture (field crops), peninsular
juniper woodland and scrub, and riparian
scrub, woodland and forest. The current
population size of the Swainson's hawk is
unknown, however the foraging Habitat
requirements are well defined. The
species is not predictable in its
occurrence and may vary in number
within the area from a few to many
individuals but only uses the Habitats
within the Plan Area during transient
migratory movements.
About 257,220 acres of potential
Habitat for the Swainson's hawk will
be outside the Criteria Area and
Public/Quasi-Public designations, or
about 64 percent of the total potential
Habitat and individuals occurring
within these areas will be subject to
Incidental Take consistent with the
Plan.
None 8 General Management Measure 1.
tree swallow
(Tachycineta bicolor)
2 The tree swallow is widely but sparsely distributed
throughout the MSHCP Plan Area within suitable Habitat.
Breeding locations have been documented at Prado Basin
and along the Santa Ana River. Additionally, Core Areas
may be present at Wasson Canyon, Temecula Creek,
Lake Skinner, Vail Lake, and Wilson Valley, based on
repeated observations of tree swallows in these areas.
The species has also been reported at Lake Mathews,
Alberhill Creek, Lake Elsinore, Murrieta Creek, Lake Perris,
and Santa Rosa Plateau. Because Habitat characteristics
for this species are well known including open water for
foraging and riparian scrub and water-associated
woodland and forest for nesting, and the species occurs
in all Bioregions of the Plan Area, but has specific
locations that are Core Areas, it is anticipated that tree
swallows will respond well to a landscape level with site
specific requirements.
Objective 1: Include within the MSHCP Conservation Area
44,420 acres of suitable nesting and foraging
Habitat for the tree swallow including open water,
riparian scrub, woodland and forest, and oak
woodland and forest Habitats in all Bioregions of the
Plan Area.
Objective 2: Include within the MSHCP Conservation Area the 6
known Core Areas including the breeding
populations in the Prado Basin/Santa Ana River
(9,670 acres) and other Core Areas at Wasson
Canyon (Subunit 5 of Elsinore Area Plan; 2,320
acres), Temecula Creek (Subunit 2 of Southwest
Area Plan; 850 acres), Lake Skinner (Existing Core
J plus Proposed Extension of Existing Cores 5, 6, 7;
29,060 acres), Vail Lake (Subunit 3 of Southwest
Area Plan; 12,320 acres), and Wilson Valley
(Subunit 2 of REMAP Area Plan; 33,540 acres).
Include additional areas that may contain breeding
populations including Lake Mathews, Lake Perris,
and Lake Elsinore, and drainages and woodland
Conservation for this species will be
achieved by the inclusion of at least
44,420 acres of suitable Conserved
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will conserve the
micro-Habitat (i.e., groups of large snags)
in potential nesting Habitat. The six Core
Areas of the tree swallow are conserved
within large blocks of Habitat in the
MSHCP Conservation Area and additional
areas where the tree swallow has been
observed and that contain potential Habitat
are also conserved.
The Incidental Take of the tree
swallow is difficult to quantify due to
our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of tree swallows can
be anticipated by the loss of the
number of acres of potential Habitat
that will become unsuitable for this
species. About 14,580 acres (25
percent) of potential Habitat for the
tree swallow will be outside the
Criteria Area and Public/Quasi-Public
Lands, and individuals within these
areas will be subject to Incidental Take
consistent with the Plan. None of the
Core Areas will be outside the MSHCP
Conservation Area. Of this,
approximately 5,430 acres (9 percent)
of potential Habitat are located within
Rural/Mountainous designation areas.
None 8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and/or preserving
hydrological process on the Santa Ana River and any other
hydrologic system important to maintain the integrity of nesting
sites in the MSHCP Conservation Area. Reserve Managers will
enhance and/or create additional Habitat and/or nesting areas in
the areas identified in Objective 3 and at Lake Elsinore, Diamond
Valley Lake, Lake Mathews, and Lake Perris. Reserve Managers
will manage nesting Habitat on the Santa Ana River and in other
Core breeding Areas by managing for snags and older tree
stands of oak and cottonwood. Reserve Managers will assure
the continued presence of nesting tree swallows at a minimum
of 70% of the locations in the MSHCP Conservation Area where
the species has been known to occur. Presence/ absence must
be demonstrated at least once every seven years.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-84
areas within the Cleveland National Forest and San
Bernardino National Forest.
Objective 3: Include within the MSHCP Conservation Area
micro-Habitat (i.e., groups of large snags) in
potential nesting Habitat.
While the Rural/Mountainous areas are
not included within the MSHCP
Conservation Area, will not be
managed for the benefit of wildlife, and
the existing zoning/ordinances for
these areas do not preclude
development and could allow
substantial fragmentation and/or
degradation of Habitat for proposed
covered species, the anticipated levels
of development in these areas may be
consistent with maintaining some
Habitat for the tree swallow. It should
also be noted that wetland Habitats
located outside the MSHCP
Conservation Area would be subject to
the Protection of Species Associated
with Riparian/Riverine Areas and
Vernal Pools policy presented in
Section 6.1.2 of the MSHCP, Volume
I.
tricolored blackbird
(Agelaius tricolor) -
colony
3 The tricolored blackbird occurs in a widely scattered
distribution throughout the lowland and foothills
Bioregions of the Plan Area. A few current or historic
breeding locations have been documented. It has specific
Habitat requirements, including patches of dense
emergent vegetation as primary Habitat for breeding. It
also requires a variety of open Habitats as secondary
Habitat and is occasionally known to nest in riparian
woodland areas. This species occurs in several Core
Areas, including the floodplain of the San Jacinto River,
Mystic Lake/San Jacinto Wildlife Area, Collier Marsh,
Alberhill, Vail Lake/Wilson Valley/eastern Temecula Creek,
and Lake Hemet, which are either currently used or have
been used in the past by tricolored blackbird breeding
colonies. Although the tricolored blackbird is not
documented to occur in the Santa Ana River and Prado
Basin in the CNDDB and UCR databases, these areas
contain substantial amounts of suitable Habitat and seem
likely future or undocumented breeding locations.
Objective 1: Include within the MSHCP Conservation Area at
least 420 acres of suitable primary Habitat for the
tricolored blackbird including freshwater marsh and
cismontane alkali marsh Habitats within the
Riverside Lowlands and Foothills Bioregions.
Objective 2: Include within the MSHCP Conservation Area the 5
Core Areas, including San Jacinto River floodplain
(Proposed Core 5, Existing Constrained Linkage C,
Proposed Extension of Existing Core 4, and
Proposed Constrained Linkage 19; 7,320 acres),
Mystic Lake/San Jacinto Wildlife Area (Existing Core
H; 17,470 acres), Collier Marsh and Lake Elsinore
grasslands (Subunit 3 of Elsinore Area Plan; 1,810
acres), Alberhill (Subunit 2 of Elsinore Area Plan;
3,460 acres), and Vail Lake/Wilson Valley/eastern
Temecula Creek (Proposed Core 7; 50,000 acres).
Conservation for this species will be
achieved by inclusion of at least 420 acres
of suitable primary Conserved Habitat and
66,510 acre of suitable secondary
Conserved Habitat and 5 Core Areas
within large blocks of Habitat in the
MSHCP Conservation Area. The MSHCP
Conservation Area will maintain (once
every 5 years) the continued use of, and
successful reproduction within at least
one of the identified Core Areas and will
conserve within the MSHCP Conservation
Area and establish a 100-meter buffer
around any known nesting locations.
Implementation of Objective 6 will ensure
Habitat support functions within the
MSHCP Conservation Area by maintaining,
preserving, and/or, if feasible, restoring
hydrological processes and Habitat
The Incidental Take of the tricolored
blackbird is difficult to quantify due to
our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of tricolored blackbirds
can be anticipated by the loss of the
number of acres of potential Habitat
that will become unsuitable for this
species. About 193,240 acres of
potential Habitat for the tricolored
blackbird will be outside the Criteria
Area and Public/Quasi-Public
designations, or about 74 percent of
the total potential Habitat and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Of the primary Habitats,
60 acres will be outside the MSHCP
None 5 5 General Management Measures 4 and 6. Reserve Managers
will manage this species in order to maintain (once every 5
years) the continued use of, and successful reproduction within
at least one of the identified Core Areas. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and preserving hydrological
processes and Habitat suitable for tricolored blackbird breeding
within the San Jacinto River floodplain, Mystic Lake/San Jacinto
Wildlife Area, Collier Marsh, Alberhill, and Vail Lake/Wilson
Valley/eastern Temecula Creek. Reserve Managers will manage
known and future occurrences of this species. Reserve
Managers will conserve, protect and buffer with a 100-meter
distance around any known nesting locations. Particular
management emphasis will be given to Habitat loss, predation,
poisoning, human disturbance and pesticide use.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-85
Because the tricolored blackbird requires specific Habitat
conditions, occurs in few locations within a broad Habitat
category, and uses a well defined Habitat that is narrowly
distributed for its primary Habitat, this species will require
site specific considerations, protection of preferred
Habitat on a landscape basis, and species-specific
Conservation measures.
Objective 3: Include within the MSHCP Conservation Area at
least 66,510 acres of secondary Habitat for the
tricolored blackbird including playa and vernal pool,
grasslands, agriculture land, and riparian scrub,
woodland, and forest within the Riverside Lowlands
and Foothills Bioregions.
Objective 4: Within the MSHCP Conservation Area, maintain
(once every 5 years) the continued use of, and
successful reproduction within at least one of the
identified Core Areas. Successful reproduction is
defined as a nest which fledged at least one known
young.
Objective 5: Within the MSHCP Conservation Area, ensure
Habitat support functions by maintaining,
preserving, and/or if feasible, restoring hydrological
processes and Habitat suitable for tricolored
blackbird breeding within the San Jacinto River
floodplain, Mystic Lake/San Jacinto Wildlife Area,
Collier Marsh, Alberhill, and Vail Lake/Wilson
Valley/eastern Temecula Creek Core Areas.
Objective 6: Include within the MSHCP Conservation Area and
establish a 100-meter buffer around any known
nesting locations.
suitable for tricolored blackbird breeding
within the San Jacinto River floodplain,
Mystic Lake/San Jacinto Wildlife Area,
Collier Marsh, Alberhill, and Vail
Lake/Wilson Valley/eastern Temecula
Creek Core Areas. The current population
size of the tricolored blackbird is unknown,
however the historic and recent breeding
locations are conserved within the MSHCP
Conservation Area.
Conservation Area, or about 13
percent of the potential primary
Habitat. Of the secondary Habitats,
about 193,180 acres will be outside
the MSHCP Conservation Area, or
about 74 percent of the potential
secondary Habitats. It should also be
noted that wetland Habitats located
outside the MSHCP Conservation Area
will be subject to the Protection of
Species Associated with Riparian/
Riverine Areas and Vernal Pools policy
presented in Section 6.1.2 of the
MSHCP, Volume I. Based on the
information from CNDDB, a breeding
location is recorded for Lake Hemet.
This potential breeding colony site is
outside of the MSHCP Conservation
Area but within the area subject to
protection by the MSHCP Protection of
Species Associated with Riparian/
Riverine Areas and Vernal Pools
policy. A total of 14 of 16 point
localities will be located outside the
MSCHP Conservation Area, however
these point locations were recorded in
foraging Habitats such as field crops,
chaparral, sage scrub, and residential
which are Habitats not suitable for
breeding.
turkey vulture
(Cathartes aura) -
breeding
3 The turkey vulture is generally widely distributed
throughout the Plan Area. There are fewer observations
within the mountainous Bioregions, however this could be
due to lack of survey effort or reporting in these areas.
There are concentrations of observation locations within
the southwestern portion of the Plan Area from Lake
Elsinore to the Santa Rosa Plateau, east to Wilson Valley
and Lake Skinner. The focus of this planning effort is on
the nesting of the turkey vulture. There are two recorded
nest sites within the Plan Area: Bernasconi Hills near Lake
Perris and Rawson Canyon near Lake Skinner. Turkey
Objective 1: Include within the MSHCP Conservation Area at
least 457,160 acres of suitable foraging Habitat for
the turkey vulture including montane coniferous
forest, oak woodlands and forests, coastal sage
scrub, chaparral, desert scrubs, Riversidean alluvial
fan sage scrub, grassland, and playa and vernal
pool.
Objective 2: Include within the MSHCP Conservation Area, areas
where the turkey vulture has been observed and
that may function as important foraging locations,
Conservation for this species will be
achieved by inclusion of at least 457,160
acres of suitable Conserved Habitat and
140,810 acres of Core Areas within large
blocks of Habitat in the MSHCP
Conservation Area. The two known
nesting locations will be conserved within
large blocks of Habitat within the MSHCP
Conservation Area and the nest locations
will be buffered from disturbance.
Additional cliff areas for potential nesting
The Incidental Take of the turkey
vulture is difficult to quantify due to
our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of turkey vultures can
be anticipated by the loss of the
number of acres of Habitat that will
become unsuitable for this species.
About 342,360 acres (43 percent) of
potential Habitat for the turkey vulture
None 8 3 Maintain (once every 3 years) the continued use of, and
successful reproduction at, the two known nesting locations,
and at any nesting locations identified in the MSHCP
Conservation Area in the future. Reserve Managers will ensure
buffering of the nest sites, which will include restricting human
activities within a 1/2-mile radius around each of the nesting
locations during the breeding season (e.g., fencing hiking trails
or fencing potential access points). For Lake Perris, buffering
will be consistent with the recreational activities at Lake Perris.
Reserve Managers will ensure the Conservation of cliff areas in
the Criteria Area that are capable of supporting nesting turkey
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-86
vultures have strict nest-site requirements and few
potential sites are located within the Plan Area. Because
the turkey vulture requires specific conditions for its
nesting location which may occur within a broad variety
of Habitats at few locations within the Plan Area, the
turkey vulture will require site-specific and species
specific considerations and management requirements.
including Lake Mathews-Estelle Mountain (Existing
Core C plus Proposed Extension of Existing Core 2;
23,710 acres), Sedco Hills (Proposed Linkage 8;
5,470 acres), Lake Skinner/ Diamond Valley Lake
area (Existing Core C plus Proposed Extension of
Existing Cores 5, 6, and 7 and Existing Constrained
Linkage A; 29,370 acres), Wilson Valley/Sage
(Subunit 2 of REMAP Area Plan; 33,540 acres),
Badlands (Proposed Core 3; 24,920 acres), and
Prado Basin/Santa Ana River (9,670 acres), and a
portion of Santa Rosa Plateau (Existing Core F plus
Proposed Linkages 9 and 10, and Proposed
Constrained Linkages 9 through 12; 14,130 acres).
Objective 3: Include within the MSHCP Conservation Area,
protect, and buffer from disturbance the 2 known
nesting locations of the turkey vulture including the
site within the Bernasconi Hills (historic) and the
site within Rawson Canyon (currently active).
Protection is the Conservation of undeveloped
Habitats in the MSHCP Conservation Area within a
1 mile radius of each nesting location. Buffering of
the two known nest sites will include restricting
human activities, within the MSHCP Conservation
Area, within a 1/2 mile radius around each of the
nesting locations during the breeding season (e.g.,
fencing hiking trails or fencing potential access
points).
Objective 4: Within the MSHCP Conservation Area, maintain
(once every 3 years) the continued use of, and
successful reproduction at the two known nesting
locations, and at nesting locations identified in the
MSHCP Conservation Area in the future.
Successful reproduction is defined as a nest which
fledged at least one known young.
Objective 5: Include within the MSHCP Conservation Area cliff
areas that are capable of supporting nesting turkey
vultures.
also will be included within the MSHCP
Conservation area. In addition, Objective
4 will maintain (once every 3 years) the
continued use of, and successful
reproduction at the two known nesting
locations, and at any nesting locations
identified in the MSHCP Conservation Area
in the future.
will be outside the Criteria Area and
Public/Quasi-Public designations and
individuals within this Habitat will be
subject to Incidental Take consistent
with the Plan. A total of 53 point
localities will be outside of the MSHCP
Conservation Area and 19 point
locations are within the Rural/
Mountainous category. Many of these
72 point localities are likely of winter
migrants, which are not the focus of
the MSHCP plan. Both of the nesting
locations are within conserved areas.
Some of the foraging area within
which there are a concentration of
point locations will not be conserved
within the Santa Rosa Plateau.
vultures. Particular management emphasis will be given to
preventing human disturbance, canid predation, and pesticide
use.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-87
western yellow-billed
cuckoo
(Coccyzus americanus
occidentalis)
3 The western yellow-billed cuckoo occurs as a breeding
bird in only one known location within the Plan Area. It
has been recently documented in two other locations but
breeding is not confirmed. Although the preferred Habitat,
riparian scrub and forest, is well distributed at scattered
locations within the Plan Area in the lowland Bioregions,
the western yellow-billed cuckoo apparently no longer
inhabits much of this Habitat. The western yellow-billed
cuckoo has specific narrow Habitat requirements and
conditions within the larger Habitat category within which
it occurs. Because it requires specific conditions
(including broad tracts of suitable riparian Habitat),
occurs in few locations within a large Habitat category,
and occurs in low densities, the western yellow-billed
cuckoo will require Conservation on a landscape level to
preserve the suitable Habitat, site specific considerations
for the known locations, and species specific
management conditions.
Objective 1: Include within the MSHCP Conservation Area at
least 8,970 acres of suitable Habitat for the western
yellow-billed cuckoo including southern
cottonwood/willow riparian, riparian scrub, riparian
forest, and southern willow scrub.
Objective 2: Include within the MSHCP Conservation Area at
least five Core Areas and interconnecting Linkages.
Core areas shall include the following areas: 1)
Prado Basin/Santa Ana River, including Chino
Creek, Mill Creek, and the Santa Ana River both up-
and downstream of the Prado Dam (9,670 acres);
2) Temescal Wash including Alberhill Creek
(estimated as subunit 3 of Temescal Canyon Area
Plan plus Proposed Constrained Linkage 6 and
Proposed Linkage 2; 4,290 acres); 3) Murrieta
Creek (Proposed Constrained Linkage 13; 1,400
acres); 4) Temecula Creek (Proposed Constrained
Linkages 14 and 24; 830 acres); 5) San Timoteo
Canyon (Proposed Linkages 5, 12 and Proposed
Linkage 22; 2,140 acres). Each Core Area will
include at least 100 meters of undeveloped
landscape adjacent to the riparian woodland and
scrub Habitat and contain unfragmented Habitat and
landscape Linkages to other Core Areas. The Core
Areas must support a population of 20 pairs of
cuckoos combined total.
Objective 3: Within the MSHCP Conservation Area, maintain or,
if feasible, improve the riparian Habitats within the
recent documented locations of the western
yellow-billed cuckoo at the Prado Basin, Santa Ana
River, North Peak Conservation Bank and Poorman
Reservoir. Additionally, maintain or, if feasible,
improve the potential yellow-billed cuckoo Habitat
(including potential core and other areas) and
potential Habitat Linkages within the riparian areas
along the Santa Ana River both upstream and
downstream from Prado Dam, Temescal Wash
including Alberhill Creek, Wasson Canyon, Murrieta
Creek, Temecula Creek, Vail Lake, Wilson Valley,
Bautista Creek, Tucalota Creek, Lake Skinner,
Conservation for this species will be
achieved by inclusion of at least 8,970
acres of suitable Conserved Habitat and at
least 5 Core Areas and the additional
current known locations within large
blocks of Habitat in the MSHCP
Conservation Area. The MSHCP
Conservation Area will maintain (once
every 3 years) the continued use of, and
successful reproduction at 75 percent of
the known western yellow-billed cuckoo
occupied Core Areas (including any
nesting locations identified in the MSHCP
Conservation Area in the future).
Implementation of Objective 4 will provide
the Conservation of additional areas within
the Criteria Area that are identified as
important to the western yellow-billed
cuckoo through wetland mapping
assembled as part of the Riparian/Riverine
Areas and Vernal Pools Policy. This
objective provides for Conservation of 100
percent of the occupied portions of the
property that provide for long-term
Conservation value for the western
yellow-billed cuckoo. In addition,
implementation of Objective 3 for this
species will maintain or, if feasible,
improve the riparian Habitats within the
recent documented locations and potential
Habitat and potential Habitat Linkages
within riparian areas by preserving the
hydrological processes within the
drainages that support the potential
Habitat and, if feasible, by selectively
restoring, rehabilitating or revegetating all
such areas that are currently fragmented
or otherwise degraded.
The MSHCP has been designed to
preserve the areas with the known Core
Areas of the species, including the Prado
Approximately 2,580 acres (about 22
percent) of suitable yellow-billed
cuckoo Habitat will be outside the
Criteria Area and Public/Quasi Public
Lands and individuals within these
areas may be subject to Incidental
Take. None of the Core Areas for this
species are outside the Criteria Area
and Public/Quasi Public Lands.
Additionally, implementation of the
Riparian/Riverine Areas and Vernal
Pools and adjacency policies,
maintenance and improvement of
Habitat, and protection and
management of 100 percent of the
area with Conservation value of any
site where the species is found will
minimize Take of the species.
Yes, see Section
6.1.2 (Protection
o f S p e c i e s
Associated with
Riparian/ Riverine
Areas and Vernal
Pools).
3 3 General Management Measure 4. Reserve Managers will
implement a species-specific management plan or general
management plan element that clearly identifies Conservation
measures to ensure, to the extent possible, that the species has
sufficient suitable Habitat and that the species is not impacted by
such environmental perturbations as fire, environmental
contaminants, fragmentation-induced phenomena such as
mesopredator release, and the direct and indirect impacts
associated with cattle grazing and the presence of non-native
plants and animals. Each Reserve Manager responsible for a
Core Area as identified in the Species Account will evaluate the
condition of the riparian vegetation within the Core Area and
maintain a program to enhance and/or create riparian Habitat
within the Core Area. The maintenance or improvement of
Habitat at all locales will be accomplished by preserving the
hydrological processes within the drainages that support the
potential Habitat and by selectively enhancing, rehabilitating or
revegetating all such areas that are currently fragmented or
otherwise degraded by, for instance, infestations of exotic plants
and animals. Reserve Managers will ensure (once every 3
years) the continued use of, and successful reproduction at,
75% of the known western yellow-billed cuckoo occupied Core
Areas (including any nesting locations identified in the MSHCP
Conservation Area in the future). Reserve Managers will buffer
known and future nest sites from disturbance within a 100-meter
buffer.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-88
Potrero Creek, and San Timoteo Canyon. The
maintenance or improvement of Habitat at all
locales will be accomplished by preserving the
hydrological processes within the drainages that
support the potential Habitat and, if feasible, by
selectively restoring, rehabilitating or revegetating
all such areas that are currently fragmented or
otherwise degraded by, for instance, infestations of
exotic plants and animals. Each Reserve Manager
responsible for a Core Area identified above will
evaluate the condition of the riparian vegetation
within the Core Area and implement a program to
maintain or, if feasible, restore, and/or create
riparian Habitat within the Core Area. The
Riparian/Riverine Areas and Vernal Pools policy
(Section 6.1.2) and Guidelines Pertaining to Urban/
Wildlands Interface (Section 6.1.4) will be
implemented within the MSHCP Conservation Area.
Objective 4: Include within the MSHCP Conservation Area
additional areas within the Criteria Area identified as
important to the western yellow-billed cuckoo. This
Objective shall be met through implementation of
the Riparian/Riverine Areas and Vernal Pools Policy
presented in Section 6.1.2 of the MSHCP, Volume
I. Wetland mapping assembled as part of that
policy shall be reviewed as part of the project
review process and if suitable western yellow-billed
cuckoo Habitat, defined as cottonwood or willow
riparian Habitat adjacent to flowing water or
saturated soils, is identified on the wetland maps
and cannot be avoided, a focused survey for
western yellow-billed cuckoo shall be conducted by
a qualified biologist in accordance with accepted
protocols. If survey results are positive, 100
percent of the occupied portions of the property that
provide for long-term Conservation value for the
cuckoo shall be conserved in a manner consistent
with Conservation of the cuckoo. This will involve
including 100 meters of undeveloped landscape
adjacent to the Habitat conserved.
Basin/Santa Ana River. The Prado Basin
is an important Core Area for the western
yellow-billed cuckoo. Additionally, some
of the smaller recently occupied riparian
Habitat patches, and the larger riparian
Habitat blocks that apparently have not
been recently occupied, may provide
management and restoration opportunities
that are no longer available within portions
of the core population areas. The
Conservation Strategy for this species
includes: (1) pre-construction surveys of
potential Habitat areas that cannot be
avoided, (2) assessments of the current
and future utility of Habitat areas, and (3)
the means to secure or otherwise
conserve additional Habitat areas to
expand the MSHCP Conservation Area
until the continuing preservation of the
yellow-billed cuckoo and its Habitat results
in the Conservation of the species that is
currently on the verge of extirpation within
the Plan Area and a large majority of
California as a whole.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-89
Objective 5: Within the MSHCP Conservation Area, maintain
(once every 3 years) the continued use of, and
successful reproduction at 75 percent of the known
western yellow-billed cuckoo occupied Core Areas
(including any nesting locations identified in the
MSHCP Conservation Area in the future).
Successful reproduction is defined as a nest which
fledged at least one known young.
white-faced ibis
(Plegadis chihi)
2 The white-faced ibis is sparsely distributed throughout the
Riverside Lowlands Bioregions of the MSHCP Plan Area
within its suitable Habitat. It occurs at some of the areas
of freshwater marsh Habitat but is only documented for
breeding at two locations: Prado Basin and Mystic
Lake/San Jacinto Wildlife Area. There appear to be
several Core Areas in addition to the two breeding areas
including a section of the Santa Ana River, Collier Marsh,
and San Jacinto Valley. The breeding locations are few
and there are not likely to be more that have not been
discovered. These breeding locations require
Conservation. The species uses a wide variety of
Habitats for foraging during winter and transient visits
including agricultural land, grassland, and areas at the
edges of drainages. It is very opportunistic and flexible
for foraging requirements.
Objective 1: Include within the MSHCP Conservation Area at
least 340 acres of suitable primary breeding Habitat
including freshwater marsh Habitat within the
Riverside Lowlands Bioregion.
Objective 2: Include within the MSHCP Conservation Area at
least the two known breeding locations and foraging
areas at the Prado Basin/Santa Ana River (9,670
acres) and Mystic Lake/San Jacinto Wildlife Area
(Subunit 4 of Reche Canyon/Badlands Area Plan;
2,690 acres), and the core foraging areas at Collier
Marsh (Proposed Linkage 2; 160 acres) and San
Jacinto Valley (Subunit 1 of Lakeview/Nuevo Area
Plan; 3,650 acres).
Objective 3: Include within the MSHCP Conservation Area at
least 57,620 acres of suitable secondary foraging
Habitat including playas and vernal pools,
agriculture (field crops), grassland, cismontane
alkali marsh, and riparian scrub, woodland and
forest within the Riverside lowlands Bioregion.
Conservation for this species will be
achieved by inclusion of at least 340 acres
of suitable Conserved Habitat composed
of the nesting Habitat (freshwater marsh)
and 57,620 acres of suitable Conserved
Habitat composed of the foraging Habitat
(playas and vernal pool, agriculture,
grassland, cismontane alkali marsh, and
riparian scrub, woodland, and forest). In
addition, the two core breeding areas as
well as the core foraging area at Collier
Marsh, along the Santa Ana River, and
within San Jacinto Valley are included in
the MSHCP Conservation Area. The
current population size of the white-faced
ibis is unknown due to its nomadic and
transient nature.
About 60 acres (about 15 percent) of
potential primary nesting Habitat for
the white-faced ibis will be outside the
Criteria Area and Public/Quasi-Public
designations, and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan. About 186,500 acres of
potential secondary foraging Habitat
for the white-faced ibis will be outside
t h e C r i t e r i a A r e a a n d
Public/Quasi-Public designations, or
about 76 percent of the total potential
Habitat. Of this, there is no primary
nesting Habitat within Rural/
Mountainous designations and a
limited amount of secondary foraging
Habitat (6,290 acres or 3 percent).
The Rural/Mountainous designation
areas are not within areas used by the
white-faced ibis. It should be noted
that the Riparian/Riverine Areas and
Vernal Pools policy presented in
Section 6.1.2 of the MSHCP, Volume
I, will apply to wetland Habitat areas
outside the MSHCP Conservation
Area.
None 8 General Management Measure 4. Reserve Managers will
manage this species with regard to flood control, Habitat
fragmentation, human disturbance and pesticide use.
white-tailed kite
(Elanus leucurus)
2 The white-tailed kite is widely distributed throughout the
MSHCP Plan Area within suitable Habitat in the Riverside
Lowlands, Santa Ana Mountains, and San Jacinto
Foothills Bioregions. It is absent from the higher elevation
Bioregions and the desert transition bioregion. There are
Objective 1: Include within the MSHCP Conservation Area at
least 19,880 acres of suitable breeding Habitat
including riparian scrub, woodland, and forest,
peninsular juniper woodland and scrub, and oak
woodland and forest within the Riverside Lowlands,
Conservation for this species will be
achieved by inclusion of at least 301,770
acres of suitable Conserved Habitat
including 281,890 acres of foraging and
19,880 acres of breeding Habitat. Ten of
About 400,190 acres (57 percent) of
potential breeding and foraging Habitat
for the white-tailed kite will be outside
t h e C r i t e r i a A r e a a n d
Public/Quasi-Public designations and
None 8 3 General Management Measure 4. Reserve Managers will
manage, protect, and buffer from disturbance, the known winter
roost area along San Timoteo Creek and any winter roost
locations identified in the MSHCP Conservation Area in the
future. Buffering of the winter roost area will include
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-90
several Core Areas including the Prado Basin/Santa Ana
River, Lake Mathews-Estelle Mountain, Temescal Wash,
Wasson Canyon, Murrieta Creek, Santa Rosa Plateau,
Temecula Creek, Vail Lake, Wilson Valley, Lake Skinner,
and Lake Perris/Mystic Lake. Concentrations of winter
roosting white-tailed kites occur along San Timoteo Creek
and in the Murrieta Hot Springs area of French Valley.
White-tailed kites typically use riparian scrub, forest and
woodland, and oak woodland and forest for breeding and
use a wide variety of more open grassland/agricultural
land and scrub lands for foraging.
Santa Ana Mountains, and San Jacinto Foothills
Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 10 core breeding areas including 1) the Prado
Basin/ Santa Ana River (9,670 acres), 2) Lake
Mathews-Estelle Mountain (Existing Core C; 15,610
acres), 3) Temescal Wash (Subunit 3 of Temescal
Canyon Area Plan plus Proposed Constrained
Linkage 6 and Proposed Linkage 2; 4,290 acres), 4)
Wasson Canyon (Subunit 5 of Elsinore Area Plan;
2,320 acres), 5) Murrieta Creek (Subunit 1 of
Southwest Area Plan; 2,060 acres), 6) Temecula
Creek (Subunit 2 of Southwest Area Plan; 850
acres), 7) Vail Lake (Subunit 3 of Southwest Area
Plan; 12,320 acres), 8) Wilson Valley (Subunit 2 of
Southwest Area Plan; 33,540 acres), 9) Lake
Skinner including the Diamond Valley Lake area
(Existing Core C plus Proposed Extension of
Existing Core 5, 6, 7; 29,060 acres), and 10) Lake
Perris/Mystic Lake (Existing Core H; 17,470 acres).
Objective 3: Include within the MSHCP Conservation Area at
least 281,890 acres of suitable foraging Habitat
including agriculture, grasslands, cismontane alkali
marsh, playas and vernal pools, freshwater marsh,
Riversidean alluvial fan sage scrub, coastal sage
scrub, and chaparral within the Riverside Lowlands,
Santa Ana Mountains, and San Jacinto Foothills
Bioregions.
Objective 4: Include within the MSHCP Conservation Area,
protect, and buffer from disturbance, the known
winter roost area along San Timoteo Creek and any
winter roost locations identified in the MSHCP
Conservation Area in the future. Buffering of the
winter roost area will include Conservation of
undeveloped Habitat within a 250 meter radius
within the MSHCP Conservation Area around the
roost site and may include a variety of Habitats.
the Core Areas of the white-tailed kite will
be conserved and one of the winter roost
areas will be conserved in large blocks of
Habitat within the MSHCP Conservation
Area. The winter roost areas will be
provided protection and buffered from
disturbance which wi l l inc lude
Conservation of undeveloped Habitat
within a 250 meter radius around the roost
site. The continued use of, and
successful reproduction at 75 percent of
the Core breeding Areas (including any
Core breeding Areas identified in the
MSHCP Conservation Area in the future)
will be maintained and documented once
every 3 years. Successful reproduction is
defined as a nest which fledged at least
one known young. The current population
size of the white-tailed kite is unknown,
however a sizable data base is present
within the UCR database and the species
appears well represented throughout the
MSHCP Plan Area within the Riverside
Lowland, Santa Ana Mountains, and San
Jacinto Foothills Bioregions.
individuals within these areas are
subject to Incidental Take consistent
with the Plan. Of this, approximately
96,620 acres (14 percent) of potential
Hab i t a t a re l ocated with in
Rural/Mountainous designation areas.
A total of 9,730 acres of potential
breeding Habitat (33 percent) is
outside of the MSHCP Conservation
Area. A total of 390,460 acres, 58
percent, of the potential foraging
Habitat is outside of the MSHCP
Conservation Area. While the
Rural/Mountainous areas are not
included within the MSHCP
Conservation Area and will not be
managed for the benefit of wildlife, the
anticipated levels of development in
these areas may be consistent with
maintaining some Habitat for the
white-tailed kite. A total of 39 point
localities will be outside of the MSHCP
Conservation Area. However, these
locations, if within a wetland area, will
continue to receive protection by the
Riparian/Riverine Areas and Vernal
Pools Policy (Section 6.1.2). No Take
of active nest sites will be permitted.
Most of the Core breeding Area in the
Santa Rosa Plateau area is within the
Rural/Mountainous designation and
will not be conserved. The Core
winter roost Area of the white-tailed
kite in the Murrieta Hot Springs area of
French Valley will not be conserved.
Conservation of undeveloped Habitat within a 250 meter radius
within the MSHCP Conservation Area around the roost site and
may include a variety of Habitats. Reserve Managers will ensure
(once every 3 years) the continued use of, and successful
reproduction at, 75% of the Core breeding Areas (including any
Core breeding Areas identified in the MSHCP Conservation Area
in the future). Reserve Managers will manage this species with
regard to Habitat loss and urbanization, Habitat degradation
especially the loss of nest trees and foraging Habitat, clean
farming techniques, competition for nest sites with other raptors
and corvids.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-91
Objective 5: Within the MSHCP Conservation Area, maintain
(once every 3 years) the continued use of, and
successful reproduction at 75 percent of the Core
breeding Areas (including any Core breeding Areas
identified in the MSHCP Conservation Area in the
future). Successful reproduction is defined as a
nest which fledged at least one known young.
Williamson’s sapsucker
(Sphyrapicus thyroideus)
2 The species has declined rangewide, presumably from
loss of large snags for nesting. Very little is known about
its status, abundance, and distribution in the MSHCP Plan
Area; there are only 5 known data points. Its
Conservation is largely dependent on activities within the
San Bernardino National Forest and the Mt. San Jacinto
State Park and private inholdings on these lands. Habitat
for the Williamson's sapsucker includes montane
coniferous forest dominated by lodgepole pines and firs,
and oak woodlands and forests in the San Bernardino and
San Jacinto mountains. Because the Habitat types that
the Williamson's sapsucker uses for breeding and
foraging are known but it requires specific micro-Habitat
for nesting sites (snags), it has been placed as a Group
2 species.
Objective 1: Include within the MSHCP Conservation Area at
least 34,020 acres of suitable breeding, wintering,
and dispersal Habitat for the Williamson's sapsucker
including oak woodland and forest and montane
coniferous forest within the San Bernardino
Mountains and San Jacinto Mountains Bioregions.
Objective 2: Include within the MSHCP Conservation Area
micro-Habitat (i.e., groups of large snags) in
potential nesting Habitat.
Conservation for this species will be
achieved by inclusion of at least 34,020
acres of suitable Conserved Habitat and
will include the preferred microHabitat
composed of groups of snags. The
current population size of this species is
not known and data on point localities is
very low.
About 12,270 acres (27 percent) of
potential Habitat for the Williamson's
sapsucker will be outside the Criteria
Area o r Publ ic/Quasi-Publ i c
designations, and individuals within
this Habitat will be subject to
Incidental Take consistent with the
Plan. Of this, approximately 890 acres
(2 percent) of potential Habitat are
located within Rural/Mountainous
designation areas. This does not
represent a significant contribution to
the Conservation of the Williamson's
sapsucker and the areas are located
outside of the important breeding
Habitat for the species.
None 8 Reserve Managers will manage known and future occurrences
of this species with regard to prevent Habitat degradation and
loss of snags, and timber harvesting.
Wilson’s warbler
(Wilsonia pusilla)
1 The Wilson's warbler has a sparse and widespread
distribution within almost every Habitat that occurs within
the MSHCP Plan Area. Although few documented
records exist for the Wilson's warbler within the Plan
Area, the literature suggests that the species forages
within the lowland and foothills Bioregions of the Plan
Area in almost every Habitat as a transient in the spring
and fall and breeds within the mountain Bioregions in
shrub and scrub Habitat, wet and montane meadow, and
edges of riparian and forested Habitats. The Wilson's
warbler has not been reported to winter within the Plan
Area. Because the Wilson's warbler is opportunistic and
widespread during migration and its breeding Habitat
requirements are well known, it is classified as a Group 1
species.
Objective 1: Include within the MSHCP Conservation Area at
least 198,850 acres of suitable montane meadow,
riparian scrub, oak woodland and forest, coastal
sage scrub, chaparral, and Riversidean alluvial fan
sage scrub within the San Bernardino Mountains,
San Jacinto Mountains, and Santa Ana Mountains
Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 192,140 acres of suitable dispersal and
migration Habitat and interconnecting Linkages
within the MSHCP Conservation Area for transient
migration movements including grassland,
Riversidean alluvial fan sage scrub, coastal sage
scrub, desert scrubs, chaparral, peninsular juniper
woodland and scrub, riparian scrub, woodland, and
forest, and oak woodland and forest.
Conservation for this species will be
achieved by inclusion of at least 198,850
acres of suitable Conserved Habitat
including the breeding Habitat composed
of montane meadow, chaparral, coastal
sage scrub, Riversidean alluvial fan sage
scrub, riparian scrub, woodland, and
forest, and oak woodlands and forest. In
addition, at least 192,140 acres of suitable
Conserved Habitat including the
transient/migration Habitat are included in
the MSHCP Conservation Area. The
MSHCP Conservation Area has been
designed to preserve the large blocks of
areas that contain a variety of potentially
suitable Habitats for foraging use during
migration as well as very large blocks that
contain potentially suitable nesting Habitat
for the species.
The Incidental Take of the Wilson's
warbler is difficult to quantify due to
our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of Wilson's warblers
can be anticipated by the loss of the
number of acres of potential Habitat
that will become unsuitable for this
species. About 71,030 acres (26
percent) of potential breeding Habitat
for the Wilson's warbler will be outside
t h e C r i t e r i a A r e a a n d
P u b l ic / Q u a s i- P u b l i c L a n d s
designations and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan. Of this, approximately 39,460
acres (15 percent) will be within
None 8 General Management Measures 1 and 4.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-92
Rural/Mountainous designation areas.
About 219,680 acres (53 percent)
potent ial t ransient migratory
movement Habitat for the Wilson's
warbler will be outside the Criteria
Area and Public/ Quasi-Public Lands
designations. Of this, approximately
58,800 acres (14 percent) will be
within Rural/Mountainous designation
areas. Although these areas will not be
part of the managed MSHCP
Conservation Area, the anticipated
levels of development in these areas
may be consistent with the continued
presence of the Wilson's warbler.
yellow-breasted chat
(Icteria virens)
2 The yellow-breasted chat is sparsely and widely
distributed throughout the MSHCP Plan Area within
suitable Habitat. There appear to be several Core Areas
including the Prado Basin/Santa Ana River, Temescal
Wash including the Alberhill Creek tributary, Temecula
Creek, Vail Lake area, San Timoteo Creek, and Canyon
Lake. Because this species is associated with riparian
woodland and riparian scrub Habitats, occurs in a wide
but sparse distribution in the lowland and foothills areas
of the Plan Area within suitable Habitat, but has specific
locations that are Core Areas, this species will be
managed at a landscape level with site specific
requirements.
Objective 1: Include within the MSHCP Conservation Area at
least 9,430 acres of suitable Habitat for the
yellow-breasted chat including riparian woodland
and riparian scrub Habitat within the Riverside
Lowlands and San Jacinto Foothills Bioregions.
Objective 2: Include within the MSHCP Conservation Area at
least 5 Core Areas including the Prado Basin/Santa
Ana River (9,670 acres), Temescal Wash including
Alberhill Creek (estimated as Subunit 3 of Temescal
Canyon Area Plan plus Proposed Constrained
Linkage 6 and Proposed Linkage 2 at 4,290 acres),
Temecula Creek (Subunit 2 of Southwest Area Plan;
850 acres), Vail Lake (Subunit 3 of Southwest Area
Plan; 12,320 acres), and San Timoteo Creek
(Subunit 3 of The Pass Area Plan; 2,290 acres) and
maintain adequate Habitat Linkages between Core
Areas and smaller drainages and tributaries.
Objective 3: Within the MSHCP Conservation Area, maintain
(once every 5 years) the continued use of, and
successful reproduction at 75 percent of the Core
Areas (including any Core Areas identified in the
MSHCP Conservation Area in the future).
Successful reproduction is defined as a nest which
fledged at least one known young.
Conservation for this species will be
achieved by the inclusion of at least 9,430
acres of suitable Conserved Habitat and
five Core Areas which total 29,420 acres.
The MSHCP has been designed to
preserve the important Core Area
representing the larger known populations
at Prado Basin/Santa Ana River as well as
four other Core Areas. In addition, the
MSHCP Plan will maintain (once every 5
years) the continued use of, and
successful reproduction at 75 percent of
the Core Areas (including any Core Areas
identified in the MSHCP Conservation Area
in the future). Successful reproduction is
defined as a nest which fledged at least
one known young. Preservation of sites
conta in ing smaller numbers of
yellow-breasted chats are likely to be just
as important as the large population sites.
These small populations, documented
above to be largely preserved are
important to prevent further isolation of
remaining breeding groups. Additionally,
some of these smaller riparian Habitat
patches may provide restoration
About 2,780 acres (23 percent) of
p o t e n t i a l H a b i t a t f o r t h e
yellow-breasted chat will be outside
t h e C r i t e r i a A r e a a n d
Public/Quasi-Public designations, and
individuals within these areas may be
subject to Incidental Take. A total of
one of six Core Areas, the population
located at Canyon Lake, will not be
conserved within the MSHCP
Conservation Area.
None 5 5 General Management Measure 4. Reserve Managers will
maintain ecological processes within occupied Habitat and
appropriate new areas within the MSHCP Conservation Area.
Each Reserve Manager responsible for a Core Area identified in
the Species Account will evaluate the condition of the riparian
vegetation within the Core Areas and maintain a program to
enhance and/or create riparian Habitat and implement exotic
species control programs within the Core Areas. Reserve
Managers will ensure (once every 5 years) the continued use of,
and successful reproduction at, 75% of the Core Areas
(including any Core Areas identified in the MSHCP Conservation
Area in the future). This species will also be managed for
possible brown-headed cowbird parasitism.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-93
opportunities that are no longer available
within some of the larger riparian systems.
yellow warbler
(Dendroica petechia
brewsteri)
2 The yellow warbler is relatively well distributed throughout
the MSHCP Plan Area within suitable Habitat. There
appear to be several Core Areas including the Prado
Basin/Santa Ana River, Temescal Canyon and its
tributaries, Wasson Canyon, Temecula Creek, Murrieta
Creek, Vail Lake area, Wilson Creek, San Timoteo Creek,
Santa Rosa Plateau, and drainages and woodland areas
within the San Bernardino National Forest. Because
Habitat characteristics of the yellow warbler are well
known to include riparian scrub and forest and woodland
and the yellow warbler occurs in all Bioregions of the Plan
Area, but has specific locations that are core areas, the
yellow warbler is classified as a Group 2 species and will
be managed on a landscape level with site specific
requirements.
Objective 1: Include within the MSHCP Conservation Area at
least 34,080 acres of suitable nesting and foraging
Habitat for the yellow warbler including riparian
scrub, woodland, and forest and oak woodland and
forest.
Objective 2: Include within the MSHCP Conservation Area at
least 9 Core Areas including Prado Basin/Santa
Ana River (9,670 acres), Temescal Canyon
including tributaries such as Alberhill Creek
(estimated as Subunit 3 of Temescal Canyon Area
Plan plus Proposed Constrained Linkage 6 and
Proposed Linkage 2; 4,290 acres), Wasson
Canyon (Subunit 5 of Elsinore Area Plan; 2,320
acres) Temecula Creek (Subunit 2 of Southwest
Area Plan; 850 acres), Murrieta Creek (Subunit 1 of
Southwest Area Plan; 2,060 acres), Vail Lake
(Subunit 3 of Southwest Area Plan; 12,320 acres),
Wilson Creek (Subunit 2 of REMAP Area Plan;
33,540 acres), San Timoteo Creek (Subunit 3 of
The Pass Area Plan; 2,290 acres), and drainages
and woodland areas within the San Bernardino
National Forest (13,720 acres).
Objective 3: Within the MSHCP Conservation Area, maintain
(once every 5 years) the continued use of, and
successful reproduction at 75 percent of the Core
Areas (including any Core Areas identified in the
MSHCP Conservation Area in the future).
Successful reproduction is defined as a nest which
fledged at least one known young.
Conservation for this species will be
achieved by inclusion of at least 34,080
acres of suitable Conserved Habitat. Nine
of the ten Core populations will be
conserved in the MSHCP Conservation
Area. Conservation of the small patches
of riparian Habitat and the sites containing
small numbers of yellow warblers may
contribute to the populations within the
Plan Area. These small populations,
documented above to be largely preserved
are important to prevent further isolation of
remaining Core breeding groups. In
addition, Objective 3 for this species will
maintain (once every 5 years) the
continued use of, and successful
reproduction at 75 percent of the Core
Areas (including any Core Areas identified
in the MSHCP Conservation Area in the
future). Successful reproduction is
defined as a nest which fledged at least
one known young.
The Incidental Take of the yellow
warbler is difficult to quantify due to
our limited knowledge of its
distribution and abundance within the
Plan Area. The maximum level of
Incidental Take of yellow warblers can
be anticipated by the loss of the
number of acres of potential Habitat
that will become unsuitable for this
species. About 12,710 acres (27
percent) of potential Habitat for the
yellow warbler will be outside the
Criteria Area or Public/Quasi-Public
designations, and individuals within
these areas will be subject to
Incidental Take consistent with the
Plan. Of this, approximately 5,390
acres (12 percent) of potential Habitat
will be located within areas designated
as Rural/Mountainous. While the
Rural/Mountainous areas are not
included wi th in the MSHCP
Conservation Area, will not be
managed for the benefit of wildlife, and
the existing zoning/ordinances for
these areas do not preclude
development and could allow
substantial fragmentation and/or
degradation of Habitat for proposed
covered species, the anticipated levels
of development in these areas may be
consistent with maintaining some
Habitat for the yellow warbler. The
Core Area within the Santa Rosa
Plateau will be outside the MSHCP
Conservation Area and individuals
within this area will be subject to
Incidental Take consistent with the
Plan.
None 5 5 General Management Measure 4. Reserve Managers will
maintain the riparian Habitats within the Core population Areas.
The maintenance of Habitat will be accomplished by preserving
the hydrological processes within the drainages that support the
potential Habitat and by selectively rehabilitating or revegetating
all such areas that are currently fragmented or otherwise
degraded by, for instance, infestations of exotic plants and
animals (including brown-headed cowbirds). Each Reserve
Manager responsible for a Core Area identified in the Species
Account will evaluate the condition of the riparian vegetation
within the Core Area and maintain a program to enhance and/or
create riparian Habitat within the Core Area. Reserve Managers
will ensure (once every 5 years) the continued use of, and
successful reproduction at, 75% of the Core Areas (including
any Core Areas identified in the MSHCP Conservation Area in the
future).
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-94
MAMMALS
Aguanga kangaroo rat
(Dipodomys merriami
collinus)
3 The Aguanga kangaroo rat has a narrow distribution
within the Plan Area, with known localities including
Temecula Creek in the Aguanga area and Wilson Creek in
the Sage area. The Aguanga kangaroo rat typically is
found in Riversidean alluvial fan sage scrub, but may
occur in Riversidean sage scrub, chaparral and grassland
in uplands and tributaries in proximity to Riversidean
alluvial fan sage scrub Habitats. Conservation of
Riversidean alluvial fan and upland sage scrub in
Temecula and Wilson creeks is essential for Conservation
of this species in the Plan Area. Monitoring and adaptive
management to maintain and enhance Habitat in these
areas also will be important for this species because of
the small amount of remaining Habitat. The Aguanga
kangaroo rat is a Group 3 species because of its narrow
distribution in the Plan Area and the need for population
monitoring and adaptive management.
The Aguanga kangaroo rat is on the Additional Survey
Needs and Procedures (Section 6.3.2) list and surveys
for the species will be conducted as part of the project
review process for all public and private projects within
the mammal species survey area where suitable Habitat
is present (see Mammal Species Survey Area Map,
Figure 6-5 of the MSHCP, Volume 1). Aguanga
kangaroo rat localities found as a result of survey efforts
shall be conserved in accordance with the procedures
described within Section 6.3.2, MSHCP, Volume 1.
Objective 1: Include within the MSHCP Conservation Area 5,484
acres (81 percent) of occupied or suitable Habitat
within the historic floodplains of Temecula Creek
and Wilson Creek, and their tributaries.
Objective 2: Surveys for Aguanga kangaroo rat will be
conducted as part of the project review process for
public and private projects within the mammal
species survey area where suitable Habitat is
present (see Mammal Species Survey Area Map,
Figure 6-5 of the MSHCP, Volume 1). Aguanga
kangaroo rats located as a result of survey efforts
shall be conserved in accordance with the
procedures described within Section 6.3.2 of the
MSHCP, Volume 1.
Objective 3: Within the 5,484 acres of occupied and suitable
Habitat in the MSHCP Conservation Area, ensure
that at least 75 percent (4,113 acres) of the total is
occupied and that at least 20 percent of the
occupied Habitat (approximately 823 acres)
supports a medium or higher population density (5
to 15 individuals per hectare; based on McKernan
1997 studies of the San Bernardino kangaroo rat) of
the species as measured across any 8-year period
(i.e., the approximate length of the weather cycle).
Objective 4: Within the MSHCP Conservation Area, Reserve
Managers shall maintain or, if feasible, restore
ecological processes within the historic floodplains
of Temecula Creek and Wilson Creek, their
tributaries, and other localities within the Criteria
Area where the Aguanga kangaroo rat is detected in
the future, given existing constraints and activities
covered under the Plan. Maintenance and/or
restoration of ecological processes within the
MSHCP Conservation Area may include: 1) allowing
for natural dynamic fluvial processes of flooding,
scouring and Habitat regeneration, and possibly fire,
to maintain healthy alluvial fan sage scrub Habitat;
2) careful planning and design of existing and future
The MSHCP Conservation Area will
include at least 5,484 acres (81 percent)
of suitable Habitat. Most of this Habitat
will be in the Wilson Creek and Temecula
Creek drainages. Although the total
acreage of suitable Habitat conserved is
not large, it does comprise 81 percent of
identified suitable Habitat in the Plan Area
and includes the two known occupied
areas. With implementation of the
MSHCP, populations of the Aguanga
kangaroo rat should remain viable in the
Plan Area.
Approximately 1,324 acres (19
percent) of suitable Habitat for the
Aguanga kangaroo rat would be
outside the MSHCP Conservation
Area. No currently known populations
of the Aguanga kangaroo rat would be
subject to Incidental Take.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures).
8 Within the 5,484 acres of occupied and suitable Habitat in the
MSHCP Conservation Area, Reserve Managers will ensure that
at least 75 percent of the total is occupied and that at least 20
percent of the occupied Habitat (approximately 823 acres)
supports a medium or higher population density (5 to 15
individuals per hectare; based on McKernan 1997 studies of the
San Bernardino kangaroo rat) of the species as measured across
any 8-year period (i.e., the approximate length of the weather
cycle). Reserve Managers will maintain or, if feasible, restore
ecological processes within the historic flood plains of Temecula
Creek and Wilson Creek, their tributaries, and other localities
within the Criteria Area where the Aguanga kangaroo rat is
detected in the future, given existing constraints and activities
covered under the Plan. Reserve Managers will maintain or, if
feasible, restore ecological processes which shall include 1)
allowing for natural dynamic fluvial processes of flooding,
scouring and Habitat regeneration, and possibly fire, to maintain
healthy alluvial sage scrub Habitat, 2) careful planning and
design of existing and future authorized uses that may affect
natural processes such as flood control, water Conservation,
and sand and gravel mining, 3) control of other uses and
disturbances such as farming and discing for weed abatement,
heavy grazing, off-road vehicles, and vandalism, and 4) control
of invasive exotic species. Management activities will also
address grazing.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-95
authorized uses that may affect natural processes
such as flood control, water Conservation, and
sand and gravel mining; 3) control of other uses
and disturbances such as farming and discing for
weed abatement, heavy grazing, off-road vehicles,
and vandalism; and 4) control of invasive exotic
species.
bobcat
(Lynx rufus)
2 The bobcat is widespread throughout the Plan Area. This
species requires large expanses of relatively undisturbed
brushy and rocky Habitats near springs or other perennial
water sources. In addition to needing large Habitat
blocks, a key factor for Conservation of the bobcat in the
Plan Area is the provision of adequate dispersal and
movement Habitat, especially at potential bottleneck
areas. Wildlife crossings of major roadways will need to
be designed to accommodate bobcats. Use of key
movement areas will need to be monitored to ensure that
bobcats are safely using these areas.
Objective 1: Include within the MSHCP Conservation Area
469,063 acres (57 percent) of suitable Habitat in the
Plan Area. Key Conservation areas comprising large
contiguous Habitat blocks include the Santa Rosa
Plateau-Santa Ana Mountains, Agua Tibia
Wilderness-Palomar Mountains, Vail Lake-Wilson
Val ley-Aguanga, Anza-Cahui l la va l leys,
Badlands-San Jacinto Wildlife Area-Lake Perris, San
Jacinto Mountains, Lake Mathews-Estelle Mountain,
Lake Skinner-Diamond Valley Lake, and Santa Ana
River-Prado Basin.
Objective 2: Include within the MSHCP Conservation Area Habitat
Linkages and movement corridors between large
Core Areas that allow dispersal and movement of
bobcats throughout the Plan Area and to areas
outside of the Plan Area. Key Habitat connections
and corridors include the following:
! Santa Ana Mountains to Chino Hills via Fresno
Canyon-Green River
! Santa Ana Mountains to Lake Mathews-Estelle
Mountain via Indian Canyon and Horsethief
Canyon
! Santa Ana Mountains to Agua Tibia
Wilderness-Palomar Mountains via Pechanga
Creek or future wildlife overpass over
Interstate15 north of Rainbow (possibly in San
Diego County)
! Along length of Santa Ana River between
Rubidoux-North Riverside and Prado Basin
! Lake Skinner-Diamond Valley Lake to Sage-San
Jacinto Mountains via Tucalota Creek and
adjacent uplands in Reserve or Rural/
Mountainous designation areas
Conservation for the bobcat will be
achieved by inclusion of at least 469,000
acres of suitable Conserved Habitat.
Although the current population of the
bobcat in the Plan Area is unknown, it is
assumed to be widespread in suitable
Habitat. Currently its distribution in the
Plan Area is likely more constrained by
limited Habitat connections than from too
little Habitat. Large connected Habitat
blocks in the MSHCP Conservation Area
will provide for movement areas that are
adequate to support the life history needs
of the bobcat, including foraging,
reproduction, and dispersal activities.
The main Habitat areas for bobcats in the
MSHCP Conservation Area include the
Santa Ana Mountains-Santa Rosa Plateau,
the Agua Tibia Wilderness-Palomar
Mountains, the San Jacinto Mountains and
foothills, Lake Mathews-Estelle Mountain,
Lake Skinner-Diamond Valley Lake, the
Badlands, Santa Ana River-Prado Basin,
and the foothills of the San Bernardino
Mountains.
About 347,000 acres (43 percent) of
suitable Habitat for the bobcat would
be outside the MSHCP Conservation
Area. Lands outside the MSHCP
Conservation Area tend to be in areas
that currently are more fragmented by
urban and agricultural development
and thus less suitable for long-term
Conservation of the bobcat.
None 8 Reserve Managers will maintain or improve functionality of
dispersal routes. Reserve Managers will evaluate existing
undercrossings in key areas for their adequacy and will improve
as necessary to convey bobcats. Key crossings that will be
evaluated include, but are not limited to, the following: the
crossing of State Highway 91 that connects the Santa Ana
Mountains with the Chino Hills via Fresno Canyon-Green River,
the crossings of Interstate 15 that connect the Santa Ana
Mountains with Lake Mathews-Estelle Mountain via Indian
Canyon and Horsethief Canyon, the crossing(s) of Interstate 15
that connect the Santa Ana Mountains with the Agua Tibia
Wilderness-Palomar Mountains via Pechanga Creek or the
possible "Rainbow" overpass, and undercrossings of State
Highway 60 in the Badlands.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-96
! Along Badlands to San Jacinto Wildlife
Area-Lake Perris and San Jacinto Mountains
! Badlands to San Bernardino Mountains through
Cherry Valley
! San Jacinto Mountains to San Bernardino
Mountains via Banning Canyon and San
Gorgonio Wash
Objective 3: Within the MSHCP Conservation Area, maintain or
improve functionality of dispersal routes. Existing
undercrossings in key areas will be evaluated for
their adequacy and improved as necessary to
convey bobcats. Key crossings that will be
evaluated include, but are not limited to, the
following:
! The crossing of State Highway 91 that connects
the Santa Ana Mountains with the Chino Hills
via Fresno Canyon-Green River.
! The crossings of Interstate 15 that connect the
San ta Ana Mounta ins w i th Lake
Mathews-Estelle Mountain via Indian Canyon
and Horsethief Canyon.
! The crossing(s) of Interstate 15 that connect
the Santa Ana Mountains with the Agua Tibia
Wilderness-Palomar Mountains via Pechanga
Creek or the possible "Rainbow" overpass.
! Undercrossings of State Highway 60 in the
Badlands.
brush rabbit
(Sylvilagus bachmani)
1 The brush rabbit occurs throughout the Plan Area in
suitable Habitat, including chaparral, coastal sage scrub
(Diegan coastal sage scrub, Riversidean sage scrub, and
alluvial fan sage scrub), riparian and woodland Habitats,
coniferous forest, and agricultural areas (grove/orchard,
and field crops). They occur at all elevations up to 6,000
feet. Geographical areas with apparent concentrations of
observations include Sage, Anza Valley, Santa Rosa
Plateau, and the foothills of the San Jacinto Mountains.
The brush rabbit population size in the Plan Area is
unknown. Although relatively little is known of this
species in the Plan Area, with a large enough MSHCP
Conservation Area, specific management regimes will not
Objective 1: Include within the MSHCP Conservation Area
382,115 acres (63 percent) of suitable Habitat in the
Plan Area. Conservation in the primary core Habitat
areas includes the Existing Core A (10,740 acres),
Existing Core B (71,490 acres contiguous with
Cleveland National Forest in Orange County),
Existing Core C (15,610 acres), Existing Core F
(8,360 acres), Existing Core G (4,490 acres),
Existing Core H (17,470 acres), Existing Core I
(9,610 acres contiguous with San Bernardino
National Forest in San Bernardino County), Existing
Core J (24,370 acres), Existing Core K (149,750
acres), Existing Core L (24,750 acres contiguous
Conservation for the brush rabbit will be
achieved by inclusion of approximately
382,000 acres of suitable Conserved
Habitat in the MSHCP Conservation Area.
In addition, large Habitat blocks
throughout the Plan Area with
interconnecting Linkages will be
conserved, including the Santa Ana
River-Prado Basin, Santa Rosa
Plateau-Santa Ana Mountains, Agua Tibia
Wilderness-Palomar Mountains, San
Jacinto Mountains and foothills, Lake
Skinner-Diamond Valley Lake, Sage-Vail
Approximately 223,195 acres (37
percent) of suitable Habitat for the
brush rabbit will not be conserved.
Suitable Habitat outside the MSHCP
Conservation Area tends to be in areas
that are more fragmented by urban
and agricultural development and less
su i table fo r the long- te rm
Conservation of the brush rabbit.
None 8 General Management Measure 1.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-97
be necessary. All that appears to be necessary for
Conservation of the brush rabbit are large Habitat areas,
adequate vegetative cover, and suitable dispersal and/or
movement Linkages.
with Cleveland National Forest in San Diego County),
Existing Core M (10,460 acres contiguous with
Cleveland National Forest in San Diego County),
Proposed Core 1 (7,470 acres), Proposed Core 2
(5,050 acres), Proposed Core 3 (24,920 acres),
Proposed Core 4 (11,890 acres), Proposed Core 5
(3,220 acres), Proposed Core 6 (4,290 acres), and
Proposed Core 7 (50,000 acres).
Objective 2: Include within the MSHCP Conservation Area 44,000
acres of dispersal and/or movement Linkages
between large blocks of conserved Habitat.
Lake-Wilson Valley, and the Anza and Tule
valleys. The Santa Ana River-Prado Basin
and Santa Rosa Plateau-Santa Ana
Mountains may be functionally isolated
from the other Habitat areas by the
Riverside Freeway (State Highway 91) and
Interstate 15, but they are large enough
Habitat areas (including portions in Orange
and San Diego counties) to sustain viable
populations. The other Habitat blocks are
reasonably well connected and rabbits
should be able to disperse throughout
these areas.
coyote
(Canis latrans)
1 The coyote population is common and widespread
throughout the Plan Area. It occurs in all areas of the
Plan Area except the most highly urbanized areas. The
coyote is also highly tolerant of human activities and
coexists well with humans unless trapped, hunted or
otherwise harassed (e.g., disturbance of breeding dens).
The coyote is considered to be a Group 1 species
because of its broad distribution and the ability to manage
for this species on a landscape level.
Objective 1: Include within the MSHCP Conservation Area
489,500 acres (50 percent) of suitable Habitat in the
Plan Area.
Objective 2: Include within the MSHCP Conservation Area Habitat
Linkages between large Habitat blocks. Key Habitat
Linkages that likely will be used by coyotes to move
between large Habitat blocks include:
! Santa Ana River
! Badlands/San Timoteo Creek
! Indian Canyon and Horsethief Canyon crossings
of I-15
! Cole Canyon-Murrieta Creek
! Warm Springs Creek
! French Valley tributary to Warm Springs Creek
! Generally continuous upland Habitat from Lake
Mathews to Wildomar
! Gavilan Hills
! San Jacinto River
! Temecula Creek-Santa Margarita River
! Kolb Creek/Arroyo Seco
! Tucalota Creek
! Wilson Creek
! Tule Creek
! San Gorgonio Wash
Conservation for the coyote will be
achieved by inclusion of 489,500 acres of
suitable Conserved Habitat and
Conservation of key Habitat Linkages. The
Plan Area also is contiguous with coyote
Habitat in eastern Riverside, San
Bernardino, Orange and San Diego
counties.
Coyotes will be subject to Incidental
Take on lands outside the MSHCP
Conse r va t ion A rea t o t a l i ng
approximately 495,000 acres (50
percent) of suitable Habitat. Of this
unconserved Habitat, about 148,000
acres are existing agricultural land that
may continue to provide some Habitat
value in the future. Also, of the
495,000 acres authorized for
Incidental Take, approximately
111,000 acres are in the Rural/
Mountainous designated areas.
Although increased negative
interactions between coyotes and
humans are anticipated in the
Rural/Mountainous areas (e.g.,vehicle
collisions, disturbance of dens, and
possibly animal control actions where
coyotes become pests or are
perceived as a danger to public health
and safety), coyotes likely will still use
these areas.
None 8 General Management Measure 1.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-98
Dulzura kangaroo rat
(Dipodomys simulans)
1 The Dulzura kangaroo rat occurs throughout the Plan Area
in coastal sage scrub (including Diegan and Riversidean
upland sage scrubs and alluvial fan sage scrub), sage
scrub/grassland ecotones, chaparral, and desert scrubs
at all elevations up to 2,600 feet. This species is
considered to be fairly common in suitable Habitat. No
specific management regimes are needed to maintain an
adequate amount of Habitat for this species, although
management of Habitat for species such as the Stephens'
kangaroo rat, San Bernardino kangaroo rat, Los Angeles
pocket mouse and California gnatcatcher may benefit the
Dulzura kangaroo rat.
Objective 1: Include within the MSHCP Conservation Area
198,200 acres (58 percent) of suitable Habitat in the
Plan Area. The majority of Conservation will occur
in the following existing and proposed Core Areas:
Existing Core C (15,610 acres), Existing Core F
(8,360 acres), Existing Core G (4,490 acres),
Existing Core H (17,470 acres), Existing Core I
(9,610 acres), Existing Core J (24,370 acres),
Existing Core M (10,460 acres), Proposed Core 1
(7,470 acres), Proposed Core 2 (5,050 acres),
Proposed Extension of Existing Core 2 (8,100
acres), Proposed Core 3 (24,920 acres), Proposed
Core 4 (11,890 acres), Proposed Core 5 (3,220
acres), and Proposed Core 7 (50,000 acres).
Objective 2: Include within the MSHCP Conservation Area
approximately 21,000 acres of dispersal and/or
movement Linkages between Core Habitat blocks,
including the following: Proposed Linkage 3 (5,540
acres), Proposed Linkage 8 (5,470 acres), Proposed
Linkage 10 (1,520 acres), Proposed Linkage 11
(1,670 acres), Proposed Linkage 13 (1,920 acres),
Proposed Linkage 14 (4,320 acres), and Proposed
Linkages 17 and 18 (610 acres).
The MSHCP Conservation Area will
include at least 198,200 acres (58
percent) of suitable Habitat. With
implementation of the MSHCP,
populations of the Dulzura kangaroo rat
should remain viable in the Plan Area.
Approximately 146,632 acres (42
percent) of suitable Habitat for the
Dulzura kangaroo rat would be outside
the MSHCP Conservation Area.
None 8 General Management Measure 1.
long-tailed weasel
(Mustela frenata)
2 The long-tailed weasel occurs throughout the Plan Area
in virtually all types of Habitat, including agricultural and
disturbed areas. It may occur wherever there is sufficient
prey. However, the weasel population levels in the Plan
Area are unknown and additional study is needed to
identify possible Core Areas and basic life history
requirements of the species. Baseline study and
monitoring of weasels in the MSHCP Conservation Area,
therefore, will be key factors for Conservation of this
species.
Objective 1: Include within the MSHCP Conservation Area at least
474,500 acres (49 percent) of suitable Habitat in the
Plan Area. Conservation in the primary Core Habitat
Areas includes the Existing Core A (10,740 acres),
Existing Core B (71,490 acres contiguous with
Cleveland National Forest in Orange County),
Existing Core C (15,610 acres), Existing Core F
(8,360 acres), Existing Core G (4,490 acres),
Existing Core H (17,470 acres), Existing Core I
(9,610 acres contiguous with San Bernardino
National Forest in San Bernardino County), Existing
Core J (24,370 acres), Existing Core K (149,750
acres), Existing Core L (24,750 acres contiguous
with Cleveland National Forest in San Diego County),
Existing Core M (10,460 acres contiguous with
Cleveland National Forest in San Diego County),
Proposed Core 1 (7,470 acres), Proposed Core 2
(5,050 acres), Proposed Core 3 (24,920 acres),
Proposed Core 4 (11,890 acres), Proposed Core 5
Conservation for this species will be
achieved by inclusion of at least 474,500
acres (49 percent) of the suitable
Conserved Habitat and Conservation of
Linkages between large Habitat Areas.
Approximately 490,675 acres (51
percent) of suitable Habitat for the
long-tailed weasel will not be
conserved.
None 8 Reserve Managers will maintain (once every 8 years) the
continued use of long-tailed weasel at a minimum of 75 percent
of the localities in the MSHCP Conservation Area where the
species has been known to occur.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-99
(3,220 acres), Proposed Core 6 (4,290 acres), and
Proposed Core 7 (50,000 acres).
Objective 2: Include within MSHCP Conservation Area
approximately 52,400 acres of dispersal and/or
movement Linkages between Core Habitat blocks.
Given the mobility of the long-tailed weasel and its
use of drainages and agricultural areas, it potentially
could use all the identified unconstrained and
constrained Linkages in the MSHCP Conservation
Area.
Objective 3: Within the MSHCP Conservation Area, maintain
(once every 8 years) the continued use of long-tailed
weasel at a minimum of 75 percent of the localities
where the species has been known to occur.
Los Angeles pocket
mouse (Perognathus
longimembris brevinasus)
3 The Los Angeles pocket mouse generally is widely
distributed in the eastern two-thirds of the Plan Area, but
recent known localities are sparsely scattered throughout
this area. This species appears to be limited to sparsely
vegetated Habitat areas in patches of fine sandy soils
associated with washes or of aeolian (windblown ) origin,
such as dunes. The current status of populations in the
Plan Area is unknown, but some biologists believe that
the Los Angeles pocket mouse is in serious decline in the
region because it is seldom trapped and much of its
suitable Habitat has been lost to agriculture and urban
development. Conservation of sage scrub and grassland
Habitats on sandy soils, population monitoring and
adaptive management will be important for this species.
The Los Angeles pocket mouse is considered a Group 3
species because of its scattered distribution in the Plan
Area, association with specific micro-Habitats, a lack of
information about existing populations, and the need for
population monitoring and adaptive management.
The Los Angeles pocket mouse is on the Additional
Survey Needs and Procedures (Section 6.3.2) list and
surveys for the species will be conducted as part of the
project review process for public and private projects
within the mammal species survey area where suitable
Habitat is present (see Mammal Species Survey Area
Map, Figure 6-5 of the MSHCP, Volume I). Los Angeles
Objective 1: Include within the MSHCP Conservation Area, at
least 14,000 acres of suitable Habitat for the Los
Angeles pocket mouse (e.g., sandy to loamy-sand
soils occurring in non-native grassland, Riversidean
sage scrub, Riversidean alluvial fan sage scrub,
desert scrub, playa and vernal pool, chaparral, or
redshank chaparral Habitat), with at least 2,000
acres within each of seven (7) Core Areas within
the MSHCP Conservation Area. Based on existing
population distribution information, probable Core
Areas include the following: 1) San Jacinto Wildlife
Area-Lake Perris Reserve, 2) the Badlands, 3) San
Jacinto River and Bautista Creek, 4) Anza Valley, 5)
Lake Skinner-Domenigoni Reserve, 6) Potrero
Valley, and 7) Temecula Creek.
Objective 2: Include within the MSHCP Conservation Area at
least 10,000 acres of suitable Habitat for the Los
Angeles pocket mouse outside of the probable Core
Areas identified above, but within the Criteria Area.
Criteria Area locations where additional Habitat likely
will be conserved include the Santa Ana River
(northeast of Highway 60 and possibly in some
areas downstream), Wilson Creek, Vail Lake, Warm
Springs Creek, San Timoteo Creek, and San
Gorgonio Wash.
Conservation of the Los Angeles pocket
mouse will be achieved by inclusion of
approximately 32,581 acres (62 percent)
of suitable Conserved Habitat in the
MSHCP Conservation Area. Although the
size and extent of existing populations of
the Los Angeles pocket mouse in the Plan
Area is unknown, based on distribution
records, the probable key population areas
are reasonably well understood. Several
of these key areas would be in the MSHCP
Conservation Area, including San Jacinto
Wildlife Area-Lake Perris, Lake
Skinner-Diamond Valley Lake, Potrero
Valley, and Silverado Ranch Conservation
Bank in the Anza Valley. Additional
important known Habitat areas that would
be conserved include the San Jacinto
River in the Hemet-Valle Vista area and
San Jacinto Wildlife Area, Bautista Creek,
Temecula Creek between Aguanga and
Vail Lake, portions of the Badlands, and
Reche Canyon. With perhaps the
exception of populations in the
Temecula-Murrieta area, it seems unlikely
that additional key populations would not
be conserved. Most of the areas outside
The Incidental Take of the Los Angeles
pocket mouse is difficult to quantify for
the following reasons: 1) their use of
burrows for diurnal resting sites; 2)
finding a dead or impaired specimen is
unlikely; 3) losses may be masked by
seasonal or annual fluctuations in
numbers; and 4) limited knowledge of
its distribution within the Plan Area.
However, the maximum level of Take
of the Los Angeles pocket mouse
could be anticipated by the loss of the
number of acres of Habitat that will
become unsuitable for this species.
Approximately 19,508 acres (37
percent) of suitable Habitat is outside
the MSHCP Conservation Area.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures).
1 to 8 Reserve Managers will ensure that each of the 7 Core Areas
shall support a stable or increasing population that occupies at
least 30 percent of the suitable Habitat (at least 4,200 acres) as
measured over any 8-consecutive year period (i.e., the
approximate length of the weather cycle). Particular
management emphasis will be given to flood control, farming,
mining, and invasive non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-100
pocket mouse localities found as a result of survey efforts
shall be conserved in accordance with the procedures
described within Section 6.3.2, MSHCP, Volume 1.
Objective 3: Surveys for Los Angeles pocket mouse will be
conducted as part of the project review process for
public and private projects within the mammal
species survey area where suitable Habitat is
present (see Mammal Species Survey Area Map,
Figure 6-5 of the MSHCP, Volume I). Los Angeles
pocket mice located as a result of survey efforts
shall be conserved in accordance with the
procedures described in Section 6.3.2 of the
MSHCP, Volume 1.
Survey and site-specific Conservation efforts will
continue until there is a minimum of seven Core
Areas with at least 2,000 acres of suitable Habitat
within each core area, for a total of 14,000 acres of
suitable Habitat.
Objective 4: Within the MSHCP Conservation Area, Reserve
Managers shall demonstrate that each of the seven
Core Areas supports a stable or increasing
population that occupies at least 30 percent of the
suitable Habitat (at least 4,200 acres) as measured
over any 8-consecutive year period (i.e., the
approximate length of the weather cycle).
of the MSHCP Conservation Area that
potentially support pocket mouse
populations or suitable Habitat tend to be
already fragmented and would have poor
suitability for long-term Conservation.
mountain lion
(Puma concolor)
2 The mountain lion is known from the Santa Ana
Mountains, San Bernardino Mountains, San Jacinto
Mountains, Santa Rosa Mountains and brushy foothills
and riparian areas that may serve as Habitat connections
between core mountainous areas. The mountain lion also
has been seen in the 1990s in "lowland" areas such as
Lake Mathews-Estelle Mountain, Lake Skinner-Diamond
Valley Lake, the Badlands and the San Jacinto Wildlife
Area. Maintaining this species throughout the Plan Area
will require Conservation of specific core and Linkage
Habitats and implementation of specific monitoring and
management actions. This species requires large
expanses of relatively undisturbed brushy and rocky
Habitats where its main prey--the mule deer--also occurs.
In addition to needing large Habitat blocks, a key factor for
Conservation of the mountain lion in the Plan Area is the
provision of adequate dispersal and movement Habitat,
especially at potential bottleneck areas. Wildlife crossings
of major roadways will need to be designed to
Objective 1: Include within the MSHCP Conservation Area
319,843 acres (71 percent) of suitable Habitat in the
Plan Area. The majority of Habitat Conservation will
occur in large blocks throughout the Plan Area,
including the Santa Rosa Plateau-Santa Ana
Mountains (79,850 acres), Agua Tibia
Wilderness-Palomar Mountains (35,210 acres),
Badlands-San Jacinto Mountains-Santa Rosa
Mountains (174,670 acres), and San Bernardino
Mountains (9,610 acres). Additional areas likely to
be used by the mountain lion include Lake
Mathews-Estelle Mountain (31,200 acres), Lake
Skinner-Diamond Valley Lake (27,600 acres), and
Vail Lake-Sage-Wilson Valley (61,900 acres).
Objective 2: Include within the MSHCP Conservation Area Habitat
Linkages and movement corridors between large
Habitat blocks that allow dispersal and movement of
mountain lions throughout the Plan Area and to
Conservation for the mountain lion will be
achieved by inclusion of at least 320,000
acres (71 percent) of the suitable
Conserved Habitat and Conservation of
Linkages between large Habitat areas.
Implementation of the MSHCP would
provide large Habitat blocks and ensure
that movement areas are adequate to
support the life history needs of the
mountain lion, including foraging,
reproduction, and dispersal activities. The
main Habitat areas for mountain lions in
the MSHCP Conservation Area include the
Santa Rosa Plateau-Santa Ana Mountains,
Agua Tibia Wi lderness-Palomar
Mountains, Badlands-San Jacinto
Mountains-Santa Rosa Mountains, and
San Bernardino Mountains. Additional
MSHCP Conservation Areas likely to be
About 132,000 acres (29 percent) of
suitable Habitat would be outside the
MSHCP Conservation Area and
individuals within these areas will be
subject to Incidental Take consistent
with the Plan. Of this, approximately
52,000 acres (11 percent) are in
Rural/ Mountainous designation areas.
The Habitat outside of the MSHCP
Conservation Area tends to be in areas
that currently are more fragmented by
urban and agricultural development,
and thus, less suitable for
Conservation of the mountain lion.
None 8 Reserve Managers will maintain or improve functionality of
dispersal routes. Reserve Managers will evaluate existing
undercrossings in key areas for their adequacy and will improve
as necessary to convey mountain lions. Key crossings that will
be evaluated include, but are not limited to, the following: the
crossing of State Highway 91 that connects the Santa Ana
Mountains with the Chino Hills via Fresno Canyon-Green River,
the crossings of Interstate 15 that connect the Santa Ana
Mountains with Lake Mathews-Estelle Mountain via Indian
Canyon and Horsethief Canyon, the crossing(s) of Interstate 15
that connect the Santa Ana Mountains with the Agua Tibia
Wilderness-Palomar Mountains via Pechanga Creek or the
possible "Rainbow" overpass, and undercrossings of State
Highway 60 in the Badlands.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-101
accommodate mountain lions. areas outside of the Plan Area. Conserved Habitat
connections and corridors will include the following:
! Santa Ana Mountains to Chino Hills via Fresno
Canyon-Green River
! Santa Ana Mountains to Lake Mathews-Estelle
Mountain via Indian Canyon and Horsethief
Canyon
! Santa Ana Mountains to Agua Tibia
Wilderness-Palomar Mountains via Pechanga
Creek or future wildlife overpass over I-15 north
of Rainbow (possibly in San Diego County)
! Lake Skinner-Diamond Valley Lake to
Sage-Wilson Valley-San Jacinto Mountains via
Tucalota Creek and adjacent uplands in the
MSHCP Conservation Area
! Badlands to San Jacinto Mountains and Santa
Rosa Mountains
! San Jacinto Mountains to San Bernardino
Mountains via San Gorgonio Wash
Objective 3: Within the MSHCP Conservation Area, maintain or
improve functionality of dispersal routes. Existing
undercrossings in key areas will be evaluated for
their adequacy to convey mountain lions. Key
crossings that will be evaluated include, but are not
limited to, the following:
! The crossing of State Highway 91 that connects
the Santa Ana Mountains with the Chino Hills
via Fresno Canyon-Green River.
! The crossings of Interstate 15 that connect the
Santa Ana Moun ta ins wi th Lake
Mathews-Estelle Mountain via Indian Canyon
and Horsethief Canyon.
! The crossing(s) of Interstate 15 that connect
the Santa Ana Mountains with the Agua Tibia
Wilderness-Palomar Mountains via Pechanga
Creek or the possible "Rainbow" overpass.
! Undercrossings of State Highway 60 in the
Badlands.
used by the mountain lion include Lake
Mathews-Estelle Mountain, Lake
Skinner-Diamond Valley Lake, and Vail
Lake-Sage-Wilson Valley.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-102
northwestern San Diego
pocket mouse
(Chaetodipus fallax fallax)
1 The northwestern San Diego pocket mouse occurs
throughout the Plan Area in coastal sage scrub (including
Diegan and Riversidean upland sage scrubs and alluvial
fan sage scrub), sage scrub/grassland ecotones,
chaparral, and desert scrubs at all elevations up to 6,000
feet. This species is considered to be fairly common in
suitable Habitat. No specific management regimes are
needed to maintain an adequate amount of Habitat for this
species, although management of Habitat for species
such as the Stephens' kangaroo rat, San Bernardino
kangaroo rat, Los Angeles pocket mouse and California
gnatcatcher may benefit the northwestern San Diego
pocket mouse.
Objective 1: Include within the MSHCP Conservation Area
407,645 acres (56 percent) of suitable Habitat in the
Plan Area. Conservation in the primary Core Habitat
areas includes Existing Core C (15,610 acres),
Existing Core G (4,490 acres), Existing Core H
(17,470 acres), Existing Core F (8,360 acres),
Existing Core I (9,610 acres), Existing Core J
(24,370 acres), Existing Core M (10,460 acres),
Proposed Extended Existing Core 2 (8,100 acres),
Proposed Extension of Existing Core 6 (1,180
acres), Proposed Extension of Existing Core 7
(3,220 acres), Proposed Core 1 (7,470 acres),
Proposed Core 2 (5,050 acres), Proposed Core 3
(24,920 acres), Proposed Core 4 (11,890 acres),
Proposed Core 5 (3,220 acres), and Proposed Core
7 (50,000 acres).
Objective 2: Include within the MSHCP Conservation Area
approximately 18,000 acres of suitable dispersal
and/or movement Linkages between Habitat blocks,
including contiguous uplands from Estelle Mountain
to Wildomar, Gavilan Hills, San Jacinto River, Kolb
Creek/Arroyo Seco, Temecula Creek, Tucalota
Creek, Wilson Creek, Tule Creek, and San Gorgonio
Wash.
The MSHCP Conservation Area will
include at least 407,645 acres (56
percent) of suitable Habitat. Much of this
Habitat will be in large Core Areas and
Habitat Linkages that are suitable for
occupation by the San Diego pocket
mouse in four major Habitat complexes:
the Santa Ana Mountain Foothills - Santa
Rosa Plateau complex, the Lake
Mathews/Estelle Mountain - Steele Peak -
Kabian Park-Sedco Hills complex, the
Badlands-San Jacinto Mounta in
Foothills-Agua Tibia Wilderness complex,
and the Banning Bench complex.
Populations of the pocket mouse should
remain viable in these four areas.
Approximately 323,457 acres (44
percent) of suitable Habitat for the
northwestern San Diego pocket mouse
would be outside the MSHCP
Conservation Area.
None 8 General Management Measure 1.
San Bernardino flying
squirrel
(Glaucomys sabrinus
californicus)
3 Habitat for the San Bernardino flying squirrel in the Plan
Area only occurs in the San Jacinto Mountains, primarily
on U.S. Forest Service (USFS) lands in the San
Bernardino National Forest (SBNF) and the Mt. San
Jacinto Wilderness State Park. Suitable Habitat also is
present on private inholdings within the SBNF in the San
Jacinto Mountains. The status (e.g., abundance,
distribution, reproduction) of this species is not well
understood within the Plan Area. Therefore, Habitat
assessments, population baseline information, long-term
monitoring studies, and adaptive management are
necessary. The San Bernardino flying squirrel is a Group
3 species because it has a narrow distribution in the Plan
Area and requires site specific monitoring.
Objective 1: Include within the MSHCP Conservation Area at least
19,476 acres (67 percent) of suitable montane
coniferous forest and deciduous woodland and
forest Habitats within the San Jacinto Mountains
Bioregion for breeding, foraging, wintering, and
dispersal movement.
Objective 2: Within the MSHCP Conservation Area, confirm
occupation of 1000 ha (2470 acres) with a mean
density of at least 2 individuals per hectare (2
individuals per 2.47 acres) in the San Jacinto
mountains; and in the San Bernardino Mountains
confirm occupation of 100 ha.
Conservation of the San Bernardino flying
squirrel will be achieved by inclusion of
approximately 19,476 acres (67 percent)
of suitable Conserved Habitat in the San
Jacinto Mountains Bioregion of the
MSHCP Conservation Area.
About 9,404 acres (33 percent) of
suitable Habitat in the San Jacinto
Mountains Bioregion is on private
ownerships outside of the MSHCP
Conservation Area. This suitable
Habitat is on private lands in the areas
of Pine Cove, Idyllwild, Mountain
Center, Hemet Lake and various other
private inholdings within the forest.
Any proposed Incidental Take of
Habitat on USFS or State Park lands
would be consistent with approved
activities for those lands.
None 8 Within the MSHCP Conservation Area, confirm occupation of
1,000 ha (2,470 acres) with a mean density of at least 2
individuals per hectare (2 individuals per 2.47 acres) in the San
Jacinto Mountains; and in the San Bernardino Mountains confirm
occupation of 100 ha.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-103
Conservation of the San Bernardino flying squirrel in the
San Jacinto Mountains is largely dependent on activities
on Forest Service lands, but activities in the State Park
and private ownerships within the SBNF also will be
important to Conservation of the species. As a Forest
Service Sensitive Species, the flying squirrel is protected
through implementation of Forest plans and the biological
evaluation (BE) process, which assesses the potential
effects of Forest Service activities on the species.
Due to absence of information regarding abundance,
distance and life history requirements, Incidental Take of
this species is not included in this permit until
Conservation of the species in the Plan Area has been
demonstrated by achieving Objective 2.
San Bernardino kangaroo
rat
(Dipodomys merriami
parvus )
3 The San Bernardino kangaroo rat has a narrow
distribution within the Plan Area, being primarily restricted
to 1) the San Jacinto River from about Highway 79 (Lamb
Canyon Road/Sanderson Avenue) in the north to the
boundary with Forest Service land to the east, and 2)
Bautista Creek from about Bautista Dam to the north and
the Hixon Flat trailhead to the south. The precise status
of smaller remnant populations in Reche Canyon and the
northern portion of the Jurupa Mountains in the
Bloomington area is unknown, but the persistence of
remaining occurrences in these areas is likely tenuous
given the rate of ongoing Habitat destruction and
fragmentation. The San Bernardino kangaroo rat typically
is found in Riversidean alluvial fan sage scrub, but may
occur at lower densities in Riversidean upland sage
scrub, chaparral and grassland in uplands and tributaries
in proximity to Riversidean alluvial fan sage scrub
Habitats. Conservation of Riversidean alluvial fan and
upland sage scrub in the San Jacinto River and Bautista
Creek is essential for Conservation of this species in the
Plan Area. Monitoring and adaptive management to
maintain and enhance Habitat in these areas also will be
important for this species because of the small amount of
Objective 1: Include within the MSHCP Conservation Area 4,440
acres of occupied or suitable Habitat within the
historic flood plains of the San Jacinto River and
Bautista Creek and their tributaries.
Objective 2: Surveys for San Bernardino kangaroo rat will be
conducted as part of the project review process for
public and private projects within the mammal
species survey area where suitable Habitat is
present (see Mammal Species Survey Area Map,
Figure 6-5 of the MSHCP, Volume I). San
Bernardino kangaroo rats located as a result of
survey efforts shall be conserved in accordance
with the procedures described within Section 6.3.2
of the MSHCP, Volume 1.
Objective 3: Within the 4,440 acres of suitable Habitat in the
MSHCP Conservation Area, ensure that at least 75
percent of the total (3,330 acres) is occupied and
that at least 20 percent of the occupied Habitat
(approximately 666 acres) supports a medium or
higher population density (> 5 to 15 individuals per
hectare; McKernan 1997) of the species as
Conservation of the San Bernardino
kangaroo rat will be achieved by inclusion
of approximately 3,748 acres (68 percent)
of suitable Conserved Habitat in the
MSHCP Conservation Area. Virtually 100
percent of the known and high potential
San Bernardino kangaroo rat occupied
Habitat in the San Jacinto River and
Bautista Creek is within the MSHCP
Conservation Area.
The Incidental Take of the San
Bernardino kangaroo rat is difficult to
quantify for the following reasons: 1)
their use of burrows for diurnal resting
sites; 2) finding a dead or impaired
specimen is unlikely; and 3) losses
may be masked by seasonal or annual
fluctuations in numbers. For these
reasons, the level of Take of the San
Bernardino kangaroo rat is typically
estimated as the amount of permanent
and/or temporary disturbance to its
Habitat. Based on existing
information, no known and relatively
little high potential San Bernardino
kangaroo rat Habitat is outside the
MSHCP Conservation Area. However,
approximately 1,785 acres (32
percent) of suitable Habitat is outside
the MSHCP Conservation Area. This
suitable Habitat, which may be subject
to Incidental Take, is in areas where
the status of the species is unknown.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 Within the 4,440 acres of occupied and suitable Habitat in the
MSHCP Conservation Area, Reserve Managers will ensure that
at least 75 percent of the total (3,330 acres) is occupied and that
at least 20 percent of the occupied Habitat (approximately 666
acres) supports a medium or higher population density (>5 to
15 individuals per hectare; based on McKernan 1997 studies of
the San Bernardino kangaroo rat) of the species as measured
across any 8-year period (i.e., the approximate length of the
weather cycle). Reserve Managers will maintain or, if feasible,
restore ecological processes within the historic flood plains of
the San Jacinto River and Bautista Creek, their tributaries, and
other localities within the Criteria Area where the San Bernardino
kangaroo rat is detected in the future, given existing constraints
and activities covered under the Plan. Maintenance or, if
feasible, restoration of ecological processes shall include 1)
allowing for natural dynamic fluvial processes of flooding,
scouring and Habitat regeneration, and possibly fire, to maintain
healthy alluvial sage scrub Habitat, 2) careful planning and
design of existing and future authorized uses that may affect
natural processes such as flood control, water Conservation,
and sand and gravel mining, 3) control of other uses and
disturbances such as farming and discing for weed abatement,
heavy grazing, off-road vehicles, and vandalism, and 4) control
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-104
remaining Habitat. The San Bernardino kangaroo rat is a
Group 3 species because of its narrow distribution in the
Plan Area and the need for population monitoring and
adaptive management.
The San Bernardino kangaroo rat is on the Additional
Survey Needs and Procedures (Section 6.3.2) list and
surveys for the species will be conducted as part of the
project review process for public and private projects
within the mammal species survey area where suitable
Habitat is present (see Mammal Species Survey Area
Map, Figure 6-5 of the MSHCP, Volume I). San
Bernardino kangaroo rat localities found as a result of
survey efforts shall be conserved in accordance with the
procedures described within Section 6.3.2, MSHCP,
Volume I.
measured across any 8-year period (i.e., the
approximate length of the weather cycle).
Objective 4: Within the MSHCP Conservation Area, Reserve
Managers shall maintain or, if feasible, restore
ecological processes within the historic flood plains
of the San Jacinto River and Bautista Creek, their
tributaries, and other locations within the Criteria
Area where the San Bernardino kangaroo rat is
detected in the future, given existing constraints
and activities covered under the Plan. Maintenance
and/or restoration of ecological processes may
include: 1) allowing for natural dynamic fluvial
processes of flooding, scouring and Habitat
regeneration, and possibly fire, to maintain healthy
alluvial fan sage scrub Habitat, 2) careful planning
and design of existing and future authorized uses
that may affect natural processes such as flood
control, water Conservation, and sand and gravel
mining, 3) control of other uses and disturbances
such as farming and discing for weed abatement,
heavy grazing, off-road vehicles, and vandalism,
and 4) control of invasive exotic species.
Surveys will be conducted in these
areas in accordance with the
procedures described within Section
6.3.2 of the MSHCP, Volume 1.
of invasive exotic species and domestic animals.
San Diego black-tailed
jackrabbit
(Lepus californicus
bennettii)
1 The San Diego black-tailed jackrabbit occurs throughout
the Plan Area in open Habitats, primarily including
grasslands, Riversidean sage scrub, Riversidean alluvial
fan sage scrub, Great Basin sagebrush, desert scrub, and
juniper and oak woodlands. Although widespread in the
Plan Area, the jackrabbit can be characterized as ranging
from relatively uncommon to locally common. Identifying
Core Areas is difficult because this species exhibits
natural fluctuations in population sizes and distributions
in relation to reproduction and shifting distributions and
densities of food resources. With a large enough MSHCP
Conservation Area however, specific management
regimes will not be necessary for this species because it
occurs in a variety of Habitats ranging from undisturbed
to highly disturbed.
Objective 1: Include within the MSHCP Conservation Area
142,116 acres (44 percent) of suitable Habitat in
the Plan Area comprised of grassland, coastal sage
scrub, Riversidean alluvial fan sage scrub, desert
scrub, juniper woodland and scrub, and playas and
vernal pools. Conservation in the primary Core
Habitat Areas includes Existing Core A (10,740
acres), Existing Core C (15,610 acres), Existing
Core D (2,510 acres), Existing Core G (4,490
acres), Existing Core H (17,470 acres), Existing
Core F (8,360 acres), Existing Core J (24,370
acres), Proposed Extension of Existing Core 2
(8,100 acres), Proposed Extension of Existing Core
6 (1,180 acres), Proposed Extension of Existing
Core 7 (3,220 acres), Proposed Core 1 (7,470
acres), Proposed Core 2 (5,050 acres), Proposed
Conservation of the San Diego black-tailed
jackrabbit will be achieved by inclusion of
approximately 142,116 acres (44 percent)
of suitable Conserved Habitat in the
MSHCP Conservation Area. The MSCHP
Conservation Area includes large Habitat
areas and adequate Habitat Linkages that
will allow for the natural fluctuations in
population densities and distribution of the
jackrabbit, including the Santa Rosa
Plateau, Lake Skinner-Diamond Valley
Lake, Vail Lake-Sage-Wilson Valley, the
Badlands-San Jacinto River, Lakeview
Mountains, Sedco Hills-Kabian Park, and
Anza-Cahuilla valleys.
Approximately 183,412 acres (56
percent) of suitable Habitat for the
jackrabbit would be outside the
MSHCP Conservation Area.
None 8 General Management Measure 1.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-105
Core 3 (24,920 acres), Proposed Core 4 (11,890
acres), Proposed Core 5 (3,220 acres), Proposed
Core 6 (4,290 acres), Proposed Core 7 (50,000
acres), Non-contiguous Habitat Block 2 (1,230
acres), and Non-contiguous Habitat Block 5 (7,150
acres).
Objective 2: Include within the MSHCP Conservation Area
approximately 27,700 acres of Habitat Linkages
between Core Areas, including contiguous uplands
from Estelle Mountain to Wildomar, Temescal
Wash, Gavilan Hills, San Jacinto River from the
National Forest to Canyon Lake, Santa Ana River,
Murrieta Creek, Temecula Creek, Tucalota Creek,
Wilson Creek, Tule Creek, San Timoteo Creek, and
San Gorgonio Wash.
San Diego desert woodrat
(Neotoma lepida
intermedia)
1 The San Diego desert woodrat is found throughout the
Plan Area in sage scrub and chaparral wherever there are
rock outcrops, boulders, cactus patches and dense
undergrowth. The largest contiguous populations
probably are in Lake Mathews-Estelle Mountain, Kabian
area, the Badlands, San Jacinto Wildlife Area-Lake Perris,
Lake Skinner-Diamond Valley Lake, Vail Lake-Sage, and
on the Santa Rosa Plateau. As long as adequate
microHabitats are conserved, this species will remain
viable in the Plan Area. No specific management regimes
are anticipated for maintaining an adequate amount of
Habitat for this species.
Objective 1: Include within the MSHCP Conservation Area
364,828 acres (62 percent) of suitable Habitat in
the Plan Area comprised of chaparral, coastal sage
scrub, Riversidean alluvial fan sage scrub, desert
scrub, and juniper woodland and scrub.
Conservation in the primary Core Habitat Areas
includes Existing Core C (15,610 acres), Existing
Core G (4,490 acres), Existing Core H (17,470
acres), Existing Core F (8,360 acres), Existing Core
J (24,370 acres), Proposed Extension of Existing
Core 2 (8,100 acres), Proposed Extension of
Existing Core 6 (1,180 acres), Proposed Extension
of Existing Core 7 (3,220 acres), Proposed Core 1
(7,470 acres), Proposed Core 2 (5,050 acres),
Proposed Core 3 (24,920 acres), Proposed Core 4
(11,890 acres), Proposed Core 5 (3,220 acres),
Proposed Core 6 (4,290 acres), Proposed Core 7
(50,000 acres), and Non-contiguous Habitat Block
5 (7,150 acres).
Conservation for the San Diego desert
woodrat will be achieved by inclusion of at
least 364,828 acres (62 percent) of
suitable Conserved Habitat in the MSHCP
Conservation Area. Included in the
MSHCP Conservation Area are large
Habitat blocks and Linkages that are
suitable for occupation by the San Diego
desert woodrat in the four major Habitat
complexes : the Santa Ana Mountain
Foothills-Santa Rosa Plateau complex, the
Lake Mathews-Estelle Mountain-Steele
Peak-Kabian Park-Sedco Hills complex,
the Badlands-San Jacinto Mountain
Foothills-Agua Tibia Wilderness complex,
and the Banning Bench complex (see
summary of Core Areas in Objective 1).
Populations of the desert woodrat should
remain viable in these four areas.
Approximately 218,955 acres (38
percent) of suitable Habitat for the
desert woodrat would be outside the
MSHCP Conservation Area.
None 8 General Management Measure 1.
Stephens’ kangaroo rat
(Dipodomys stephensi)
2 The Stephens' kangaroo rat is relatively widespread
throughout the Plan Area, but the main blocks of occupied
Habitat are concentrated in several Core Areas that must
be conserved. The Stephens' kangaroo rat also requires
Objective 1: Include within the MSHCP Conservation Area a
minimum of 15,000 acres of occupied Habitat (as
defined in the Habitat Conservation Plan for the
Stephens' Kangaroo Rat in Western Riverside
The total estimated Conservation of
occupied and suitable Habitat in the
MSHCP Conserv at ion Area is
approximately 22,400 acres. Approval
Within the existing Stephens' kangaroo
rat HCP area it was estimated that
approximately 15,000 acres of the
estimated 30,000 acres would be
None 1 to 8 Within the minimum 15,000 acres of occupied Habitat in the
MSHCP Conservation Area, maintain at least 30 percent of the
occupied Habitat (approximately 4,500 acres) at a population
density of medium or higher (i.e., at least 5-10 individuals per
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-106
species-specific monitoring and management to ensure
its long-term viability in the Plan Area, including tracking
population densities and maintaining sparse, open
grassland Habitats.
The Long term SKR HCP provides Take Authorization for
SKR within its boundaries. The MSHCP will provide Take
Authorization for SKR outside the boundaries of the SKR
HCP, but within the Plan Area boundaries. As set forth in
Section 16.2 of the Implementing Agreement (Section 5.0
of the MSHCP, Volume I), the core reserves established
by the SKR HCP will be managed as part of the MSHCP
Conservation Area consistent with the SKR HCP.
County, March 1996), as measured across any
consecutive 8-year period (i.e., the approximate
length of the weather cycle), in a minimum of six
Core Areas within the existing boundary of the
Habitat Conservation Plan for the Stephens'
Kangaroo Rat in Western Riverside County. This
objective is consistent with the requirements of the
Stephens' kangaroo rat HCP. Core Areas, as
identified in the HCP, include Lake Mathews-Estelle
Mountain, Motte-Rimrock Reserve, Lake
Skinner-Domenigoni Valley, San Jacinto Wildlife
Area-Lake Perris, Sycamore Canyon-March Air
Force (Reserve) Base, Steele Peak, and Potrero
ACEC.
Objective 2: Include within the MSHCP Conservation Area at
least 3,000 acres of occupied Habitat, as
measured across any consecutive 8-year period,
in a minimum of two Core Areas outside the
existing boundary of the Habitat Conservation Plan
for the Stephens' Kangaroo Rat in Western
Riverside County. One of the Core Areas will be
the Potrero Valley area (as distinct from the
Potrero ACEC Core Areas listed in Objective 1) and
the other will be in the Anza and Cahuilla valleys.
Objective 3: Within the minimum 15,000 acres of occupied
Habitat in the MSHCP Conservation Area, maintain
at least 30 percent of the occupied Habitat
(approximately 4,500 acres) at a population
density of medium or higher (i.e., at least 5-10
individuals per hectare; O'Farrell and Uptain 1989)
across all Core Areas. No single Core Area will
account for more than 30 percent of the total
medium (or higher) population density area.
and implementation of the Stephens'
kangaroo rat HCP in 1996 was based on
the determination that the HCP would
conserve the kangaroo rat within the
Western Riverside County area covered by
the Plan. Expansion of the MSHCP
Conservation Area under the MSHCP
would increase the amount of Conserved
Habitat by at least 3,200 acres in the two
new Core Areas and by several thousand
acres in smaller scattered patches
throughout the MSHCP Conservation Area.
taken over the 30-year life of the
permit (RCHCA 1996). However, this
assumption was conservative relative
to the MSHCP because it did not take
into consideration several factors,
including:
• inherent protection of occupied
Habitat on other public lands
outside of Core Areas, on
undevelopable lands, and lands
occupied by other listed species;
• occupied Habitat on lands used
for dryland farming that are likely
to remain in the HCP area; and
• additional Conservation through
the multispecies planning effort.
Within the broader scope of the
MSHCP, compared to the Stephens'
kangaroo rat HCP area, estimating
Take of occupied Stephens' kangaroo
rat Habitat outside of the MSHCP
Conservation Area is difficult because
current mapping of occupied Habitat
generally is not available. Based on
existing data for known occupied and
p o t e n t i a l / p r o ba b l e H a b i t a t ,
approximately 12,940 acres are
outside of the MSHCP Conservation
Area and individuals within these
areas will be subject to Incidental Take
consistent with the Plan. However, it
is highly unlikely that any given project
would impact more than a few 10s to
a few hundred acres at a time. In the
recent past, one of the largest Takes
of occupied Habitat outside the
existing Stephens' kangaroo rat HCP
Plan Area was about 135 acres of
occupied Habitat in the Norco Hills,
hectare; O'Farrell and Uptain 1989) across all Core Areas. No
single Core Area will account for more than 30 percent of the
total medium (or higher) population density area.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-107
but this area comprised much of what
remained in the vicinity that probably
supported 1,000+ acres as recently
as 1989. Small projects in some of
the non-Core Areas listed above may
result in smaller impacts that may
cumulatively total several hundred to a
few thousand acres in the foreseeable
future. Other areas outside of the
MSHCP Conservation Area and Rural/
Mountainous areas where some Take
is likely to occur in the future include
east Riverside (e.g., Alessandro Hills),
Moreno Valley, Woodcrest, Mead
Valley, Perris, Sun City, Norco Hills,
Wildomar, Menifee, Murrieta,
Temecula, Hemet, San Jacinto, and
Banning/ Beaumont. Under the
Rural/Mountainous designation, areas
where previously the risk to occupied
Habitat potentially would have been
high, the amount of Take also will be
substantially lower.
PLANTS
beautiful hulsea
(Hulsea vestita ssp.
callicarpha)
2 Beautiful hulsea is designated as a Group 2 species
because of its restriction to the Agua Tibia and San
Jacinto Mountains and San Jacinto Foothills Bioregions,
primarily within USFS lands. Within the Plan Area,
beautiful hulsea is restricted to chaparral and lower
montane coniferous forests at elevations of 915 m to
3,050 m within the Agua Tibia and San Jacinto Mountains
and San Jacinto Foothills Bioregions. This perennial plant
grows on granitic soils, rock or gravelly soils in chaparral
and in open areas of montane conifer forest.
The University of California, Riverside, (UCR) GIS
database and the Rancho Santa Ana Botanic Gardens,
Pomona and UCR herbaria include 44 records at 32
locations, 25 of which are located on Forest Service
lands. However, 34 of the 44 records are dated 1970 or
earlier. Based on these records, beautiful hulsea occurs
Objective 1: Include within the MSHCP Conservation Area at
least 106,440 acres of suitable Habitat (chaparral
and montane coniferous forest between 915 and
3,050 m in the Agua Tibia and San Jacinto
Mountains and Foothills Bioregions).
Objective 2: Include within the MSHCP Conservation Area at
least 12 of the known occurrences at Lake Fulmor,
Pine Cove, Idyllwild, Mountain Center, Pine
Meadow and Lake Hemet.
Objective 3: Within the MSHCP Conservation Area, confirm 16
localities (locality in this sense is not smaller than
one quarter section) with no fewer than 50
individuals each (unless a smaller population has
been demonstrated to be self-sustaining).
Conservation for this species will be
achieved by inclusion of at least 106,440
acres of suitable Conserved Habitat and
25 known localities within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 36,060 acres (25
percent) of potential Habitat for
beautiful hulsea will not be conserved.
According to the UCR database and
herbarium records, 19 of the mapped
locations are located on private lands
and will not be conserved. Of these
19 mapped locations, however, 18 are
dated 1970 or earlier.
None 8 Reserve Managers will avoid or minimize adverse effects to
existing and new locations of beautiful hulsea populations to the
maximum extent practicable.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-108
in the vicinity of Lake Fulmor, Pine Cove, Idyllwild,
Mountain Center, Pine Meadow and Hemet Lake in the
San Jacinto Mountains; and on Cahuilla Mountain. Reiser
(1996) reports this species from North Mountain, east of
Hemet, along the summit fire road. CNDDB does not
contain any occurrence data for this species.
The beautiful hulsea is restricted to the western slopes of
the San Jacinto Mountains and the northern slopes of the
Agua Tibia Mountains and the MSHCP Conservation Area
configuration is expected to provide long-term
Conservation of the species. However, because the
majority of the existing records are dated prior to 1970,
Incidental Take of this species is not included in this
permit until Conservation of the species in the Plan Area
has been demonstrated by reaching Objective 3.
Brand’s phacelia
(Phacelia stellaris)
3 Brand's phacelia is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements, and management
requirements for flood plain processes. There are only
two known occurrences within the Plan Area. This
species was collected at Fairmont Park in 1925 and was
recently observed in the Santa Ana Wilderness Area. This
species appears to be restricted to sandy benches along
the Santa Ana River.
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for Brand's phacelia will be
conducted as part of the project review process for public
and private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat is present
(see Narrow Endemic Plant Species Survey Area Map,
Figure 6-1 of the MSHCP, Volume I). Brand's phacelia
located as a result of survey efforts shall be conserved in
accordance with procedures described within Section
6.1.3, MSHCP, Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least 6,100 acres of suitable Habitat (meadows/
marshes and playa/vernal pools between 0 and
500 m within the Riverside Lowlands Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least the two known localities (one historic and one
extant) of this species along the Santa Ana River at
Fairmont Park and in the Santa Ana Wilderness
Area.
Objective 3: Surveys for Brand's phacelia will be conducted as
part of the project review process for public and
private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species
Survey Area Map, Figure 6-1 of the MSHCP,
Volume I). Brand's phacelia located as a result of
survey efforts shall be conserved in accordance
with procedures described within Section 6.1.3,
MSHCP, Volume I.
Conservation for this species will be
achieved by inclusion of at least 6,100
acres of suitable Conserved Habitat and
two known occurrences along the Santa
Ana River (one historic occurrence at
Fairmont Park and one extant occurrence
along a horse trail in the Santa Ana
Wilderness Area along the Santa Ana
River) in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 11,800 acres of
potential Habitat for Brand's phacelia
would not be included in the MSHCP
Conservation Area. Neither the
historic location nor the one extant
location would be located outside the
MSHCP Conservation Area.
Yes, see Section
6.1.3 (Protection
o f N a r r o w
Endemic Plant
Species).
8 Reserve Managers will manage this species for off-road vehicle
use and trampling.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-109
California beardtongue
(Penstemon californicus)
2 California beardtongue is designated as a Group 2
species because it is restricted to the Desert Transition,
San Jacinto Foothills, San Jacinto Mountains, and Santa
Ana Mountains, primarily within USFS lands. Within the
Plan Area, California beardtongue is restricted to
chaparral, coniferous forest, and pinyon-juniper woodland
Habitats at elevations of 1,000 m to 2,100 m within the
Desert Transition, San Jacinto Foothills, San Jacinto
Mountains, and Santa Ana Mountains Bioregions.
Specifically, the plant occurs on rocky or clay soils, in
openings within chaparral adjacent to meadow Habitat,
openings within chaparral on ridgetops and in the ecotone
between chaparral and lower montane coniferous forest.
The University of California, Riverside (UCR), GIS
database has seven occurrences for this species, the
UCR herbarium has two records for this species and the
California Natural Diversity Database (CNNDB) has nine
mapped occurrences within the San Jacinto Mountains,
including Garner Valley, Pyramid Peak, Kenworthy Ranger
Station and Blackburn Canyon; and two outlier locations:
Cactus Valley and north of Sage.
California beardtongue is designated as a Forest Service
Sensitive Species. Forest Service Sensitive Plants are
protected through the implementation of Forest plans and
the biological evaluation (BE) process, which considers
the potential effects of Forest Service activities on these
species.
Objective 1: Include within the MSHCP Conservation Area at
least 118,110 acres of suitable Habitat (chaparral
and montane coniferous forest between 1,000 and
2,100 m within the Desert Transition, San Jacinto
Mountains and Foothills and Santa Ana Mountain
Bioregions).
Objective 2: Include within the MSHCP Conservation Area at
least 15 occurrences in Aguanga, Blackburn
Canyon and the San Jacinto Mountains (including
Garner Valley, Pyramid Peak, and Kenworthy
Ranger Station).
Conservation for this species will be
achieved by inclusion of at least 118,110
acres of suitable Conserved Habitat and
15 known localities in the San Jacinto
Mountains within large blocks of Habitat in
the MSHCP Conservation Area.
Approximately 52,100 acres (31
percent) of potential Habitat for
California beardtongue will not be
conserved. According to the UCR
herbarium and UCR database, three of
the mapped locations, including one
locality in the San Jacinto Mountains
and the two outliers in Cactus Valley
and north of Sage will not be
conserved. According to the CNDDB,
one of the mapped locations is within
a private in-holding in the San Jacinto
Mountains approximately two miles
north of the intersection of Highway
74 and Highway 371 and will not be
conserved.
None 8 Reserve Managers will avoid or minimize adverse effects to
California beardtongue to the maximum extent practicable.
Reserve Managers will manage grazing activities in proximity to
known and future occurrences.
California bedstraw
(Galium californicum ssp.
primum)
2 California bedstraw is designated as a Group 2 species
because it is restricted to the San Jacinto Mountains,
primarily within USFS lands and because it has specific
Habitat requirements. Within the Plan Area, California
bedstraw is restricted to the ecotone of chaparral and
lower montane coniferous forest and in the lower edge of
the pine belt at elevations of 1,350 m to 1,700 m within
the San Jacinto Mountains Bioregion on USFS lands.
Objective 1: Include within the MSHCP Conservation Area at
least 41,420 acres of suitable Habitat (chaparral
and montane coniferous forest between 1,350 and
1,700 m within the San Jacinto Mountains
Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least four of the known occurrences of this species
Conservation for this species will be
achieved by inclusion of at least 41,420
acres of suitable Conserved Habitat and
four known localities in the San Jacinto
Mountains between Pine Cove and
Idyllwild within large blocks of Habitat in
the MSHCP Conservation Area.
Approximately 9,180 acres (18
percent) of potential Habitat for
California bedstraw will not be
conserved and will be subject to
impacts consistent with the Plan.
Within the UCR database, two of the
mapped locations are located outside
of the MSHCP Conservation Area
None 8 Reserve Managers will avoid or minimize adverse effects to
California bedstraw populations to the maximum extent
practicable. Reserve Managers will manage this species for
genetic swamping by Galium nuttallii.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-110
California bedstraw is designated as a Forest Service
Sensitive Plant. Forest Service Sensitive Plants are
protected through the implementation of Forest plans and
the biological evaluation (BE) process, which considers
the potential effects of Forest Service activities on these
species.
in the vicinity of Alvin Meadows between Pine
Cove and Idyllwild in the San Jacinto Mountains.
within San Timoteo Canyon west of
Beaumont and within the vicinity of the
Diamond Valley Lake. According to
the CNDDB, one of the mapped
location within the San Jacinto
Mountains is located within a private
in-holding and will not be conserved.
California black walnut
(Juglans californica var.
californica)
2 California black walnut is designated as a Group 2
species because of its specialized Habitat requirements
and limited distribution within the Plan Area. California
black walnut is restricted to woodlands and forests below
900 m. Scattered individual trees exist on the Santa Rosa
Plateau and east of Pedley along Cimonite Avenue and
west of Rubidoux, immediately north of the Highway 60.
These are introduced occurrences (Steve Boyd, pers.
comm.). Other records include occurrences in the Santa
Ana Mountains (south of Corona and west of El Cerrito),
at Lake Skinner and near Steele Peak. Seven of the
known occurrences will be conserved in the Santa Ana
Mountains, at Lake Skinner and in the vicinity of Pedley.
Objective 1: Include within the MSHCP Conservation Area at
least 6,100 acres of suitable Habitat (riparian scrub
forests and woodland/forest and (non-riparian)
woodlands below 900 m within the Santa Ana
Mountains Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least seven known occurrences of this species
within the Santa Ana Mountains, at Lake Skinner,
at the Santa Rosa Plateau and one east of Pedley.
Conservation for this species will be
achieved by inclusion of at least 6,100
acres of suitable Conserved Habitat and
seven known localities within large blocks
of Habitat in the MSHCP Conservation
Area.
Approximately 3,830 acres (39
percent) of potential Habitat for
California black walnut will be outside
of the MSHCP Conservation Area. Of
this, approximately 3,260 acres (33
percent of total potential Habitat) will
be within Rural Mountainous
designation areas. Although these
areas will not be part of the managed
MSHCP Conservation Area, the levels
of development anticipated in these
areas may be consistent with
maintaining California black walnut in
these areas. Seven of the known
occurrences (near Steele Mountain
and scattered occurrences near
Pedley) will not be conserved in the
MSHCP Conservation Area.
None 8 Reserve Managers will avoid or minimize adverse effects to
California black walnut to the maximum extent practicable.
Reserve managers will manage known and future occurrences
of this species for grazing activities.
California muhly
(Muhlenbergia
californica)
2 California muhly is designated as a Group 2 species
because of its wide distribution within specific Habitat
associations. The species is known from Sage, Aguanga,
Estelle Mountain, Gavilan Hills, Gavilan Plateau, Prado
Dam, La Paz Canyon, Temescal Canyon, and Sitton Peak.
The CNDDB does not contain any mapped locations for
this species in the Plan Area but does contain several
written records. The UCR database does not include any
occurrences in the Plan Area but does contain one
mapped locality to the east of the Plan Area.
The distribution of California muhly is patchy and poorly
understood and the existing records are not believed to be
Objective 1: Include within the MSHCP Conservation Area at
least 368,200 acres of suitable Habitat (coastal
sage scrub, chaparral, meadow/marsh and
montane coniferous forest between 100 and 2,000
m within all Bioregions).
Objective 2: Include within the MSHCP Conservation Area the
known locations at Sage, Aguanga, Estelle
Mountain, Prado Dam, Temescal Canyon, and
Sitton Peak.
Objective 3: Within the MSHCP Conservation Area, confirm 10
localities (locality in this sense is not smaller than
one quarter section) containing at least 50 clumps
Conservation for this species will be
achieved by inclusion of at least 368,200
acres of suitable Conserved Habitat and
ten known localities within large blocks of
Habitat (at Sage, Aguanga, Estelle
Mountain, Gavilan Hills, Gavilan Plateau,
near Prado Dam, Temescal Canyon, and
the Santa Ana Mountains) in the MSHCP
Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 221,350 acres of
potential Habitat will not be included in
the MSHCP Conservation Area. This
species occurs at Sage, Aguanga,
Estelle Mountain, Gavilan Hills, Gavilan
Plateau, near Prado Dam, La Paz
Canyon, Temescal Canyon, and Sitton
Peak in the Santa Ana Mountains (U.S.
Fish and Wildlife Service, Unpublished
Data). Some or all of the occurrences
at these localities may be conserved
within the MSHCP Conservation Area.
None 8 General Management Measures 1 and 4.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-111
indicative of the distribution of this species. Incidental
Take of this species is not included in this permit until
Conservation of the species in the Plan Area has been
demonstrated by reaching Objective 3.
(unless a smaller population has been
demonstrated to be self-sustaining).
California Orcutt grass
(Orcuttia californica)
3 California Orcutt grass is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to the southern basaltic claypan vernal
pools at the Santa Rosa Plateau, and alkaline vernal pools
at Skunk Hollow and at Salt Creek west of Hemet.
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for California Orcutt grass
will be conducted as part of the project review process
for public and private projects within the Narrow Endemic
Plant Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species Survey Area
Map, Figure 6-1 of the MSHCP, Volume I). California
Orcutt grass located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.1.3, MSHCP, Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least 6,680 acres of suitable Habitat (playas and
vernal pools within the Riverside Lowlands
Bioregion of the MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area at
least three of the known locations of California
Orcutt grass at the Santa Rosa Plateau, at Skunk
Hollow and in the upper Salt Creek drainage west
of Hemet.
Objective 3: Surveys for the California Orcutt grass will be
conducted as part of the project review process for
public and private projects within the Narrow
Endemic Plant Species survey area where suitable
Habitat is present (see Narrow Endemic Plant
Species Survey Area Map, Figure 6-1, of the
MSHCP, Volume I). California Orcutt grass located
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.1.3 of the MSHCP, Volume I.
Objective 4: Include within the MSHCP Conservation Area the
watershed of the vernal pool complex on the Santa
Rosa Plateau and the vernal pool occurrences at
Skunk Hollow and Upper Salt Creek in order to
maintain hydrologic conditions.
Conservation for this species will be
achieved by inclusion of at least 6,680
acres of suitable Conserved Habitat and
three localities (Santa Rosa Plateau, upper
Salt Creek west of Hemet and Skunk
Hollow) in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring. Implementation of
Objective 4 for this species will maintain
hydrologic processes upon which this
species depends.
Approximately 1,130 acres (14
percent) of potential Habitat (playas
and vernal pools) for California Orcutt
grass will be outside the MSHCP
Conservation Area. It is important to
note that 940 acres (12 percent) of the
potential Habitat occurring outside of
the MSHCP Conservation Area is
located within the Narrow Endemic
Plant Species survey area. The
unverified occurrence of this species
west of the Santa Rosa Plateau may or
may not be conserved.
Yes, see Section
6.1.3 (Protection
o f N a r r o w
Endemic Plant
Species)
8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and enhancing the floodplain
and hydrologic processes of Upper Salt Creek west of Hemet,
Skunk Hollow, and the Santa Rosa Plateau including intermittent
flooding and periodic pooling. Particular management emphasis
will be given to preventing alteration of hydrology and floodplain
dynamics, weed abatement/fire and fire suppression practices,
grazing, off-road vehicle use and competition from alien plant
species.
chickweed oxytheca
(Oxytheca
caryophylloides)
2 Chickweed oxytheca is designated as a Group 2 species.
It is restricted to the San Jacinto Mountains, primarily
within USFS lands. Within the Plan Area chickweed
oxytheca is restricted to montane coniferous forest
(yellow pine forest) on sandy soils at elevations between
1,200 m and 2,600 m. The University of California,
Riverside, (UCR) GIS database and the Rancho Santa Ana
Botanic Gardens, Pomona and UCR herbaria include eight
occurrences in the San Jacinto Mountains dating back to
1924. The most recent occurrence is dated 1999.
Objective 1: Include within the MSHCP Conservation Area at
least 18,660 acres of suitable Habitat (montane
coniferous forest between 1,200 and 2,600 m
within the San Jacinto Mountains and Foothills
Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least five of the known locations within the San
Jacinto Mountains.
Conservation for this species will be
achieved by inclusion of at least 18,660
acres of suitable Conserved Habitat and
four known localities within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 9,200 acres (33
percent) of potential Habitat for
chickweed oxytheca will not be
conserved. According to the UCR
database and herbarium records, four
of the mapped locations are located on
private lands or within road right-of-
way and will not be conserved. Of
these four mapped locations,
however, three are dated 1924 and the
None 8 Reserve Managers will avoid or minimize adverse effects to this
species to the maximum extent practicable. Reserve Managers
will manage this species in areas where timber logging and
recreation occur.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-112
The MSHCP Conservation Area configuration is expected
to provide long-term Conservation of the species.
However, due to the age of the records, Incidental Take of
this species is not included in this permit until
Conservation of the species in the Plan Area has been
demonstrated by reaching Objective 3.
Objective 3: Within the MSHCP Conservation Area, confirm 10
localities (locality in this sense is not smaller than
one quarter section) managed with 1,000
individuals each (unless a smaller population has
been demonstrated to be self-sustaining).
third dates from 1978.
Cleveland’s bush
monkeyflower
(Mimulus clevelandii)
2 Cleveland’s bush monkeyflower is designated as a Group
2 species because it is restricted to the Santa Ana and
Agua Tibia mountains, primarily within USFS Lands.
Within the Plan Area, Cleveland’s bush monkeyflower is
restricted to chaparral and lower montane coniferous
forests at elevations above 914 meters within the Santa
Ana and Agua Tibia Mountains. This species has one
population (consisting of several occurrences) on
Santiago Peak in the Santa Ana Mountains and is present
at several localities within the Agua Tibia Mountains.
Most of the known occurrences are within the Cleveland
National Forest. Overall, approximately 10,870 acres
(93%) of potential Habitat in the Plan Area are within
existing Public/Quasi-Public Lands.
Objective 1: Include within the MSHCP Conservation Area at
least 10,870 acres of suitable Habitat (chaparral,
montane coniferous forest and woodland/forest
above 914 m within the Santa Ana Mountains and
Agua Tibia Mountain Bioregions).
Objective 2: Include within the MSHCP Conservation Area the
two known localities of this species on Santiago
Peak in the Santa Ana Mountains and on the
northern slopes of the Agua Tibia Mountains.
Conservation for this species will be
achieved by inclusion of at least 10,870
acres of suitable Conserved Habitat and
two core localities (Santa Ana Mountains
and Agua Tibia Mountains) within large
blocks of Habitat in the MSHCP
Conservation Area.
Approximately 790 acres of potential
Habitat for Cleveland's bush
monkeyflower will not be conserved in
the MSHCP Conservation Area. One
of the records (in the foothills of the
Agua Tibia Mountains) will not be
conserved.
None 8 Reserve Managers will avoid or minimize adverse effects to
Cleveland bush monkey flower populations to the maximum
extent practicable. Reserve Managers will manage this species
in ridgeline and mountaintop areas where trails, roads and
transmitting equipment are existing or proposed.
cliff cinquefoil
(Potentilla rimicola)
2 Cliff cinquefoil is designated as a Group 2 species
because it is restricted to the San Jacinto Mountains,
primarily within USFS lands. Within the Plan Area, cliff
cinquefoil is restricted to openings in upper-montane
coniferous forest and subalpine coniferous forest at
elevations between 2,390 m and 3,030 m within the San
Jacinto Mountains Bioregion. Cliff cinquefoil is a
perennial plant which grows in granitic crevices within
upper montane and subalpine coniferous forest.
The UCR database does not contain any occurrences for
this species in the Plan Area. The CNDDB contains two
occurrences in the Plan Area: in Dark Canyon and near
Deer Spring in the San Jacinto Mountains.
The cliff cinquefoil is restricted to the San Jacinto
Mountains and the MSHCP Conservation Area
configuration is expected to provide long-term
Conservation of the species. However, due to the paucity
of occurrence data, Incidental Take of this species is not
included in this permit until Conservation of the species
Objective 1: Include within the MSHCP Conservation Area at
least 1,500 acres of suitable Habitat (montane
coniferous forest between 2,390 and 3,030 m
within the San Jacinto Mountains Bioregion).
Objective 2: Include within the MSHCP Conservation Area the
two known localities of this species in Dark
Canyon and near Deer Spring.
Objective 3: Within the MSHCP Conservation Area, confirm five
localities (locality in this sense is not smaller than
one quarter section).
Conservation for this species will be
achieved by inclusion of at least 1,500
acres of suitable Conserved Habitat and
two known localities within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 10 acres (less than 1
percent) of potential Habitat for cliff
cinquefoil will not be conserved. None
of the known occurrences will be
located outside of the MSHCP
Conservation Area.
None 8 Reserve Managers will avoid or minimize adverse effects to cliff
cinquefoil to the maximum extent practicable. Reserve
Managers will manage this species where rock-climbing
activities are allowed or proposed.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-113
in the Plan Area has been demonstrated by reaching
Objective 3.
This species is designated as a Forest Service Sensitive
Species which can be managed at the site specific level.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
Coulter’s goldfields
(Lasthenia glabrata ssp.
coulteri)
3 Coulter’s goldfields is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to the alkali floodplains of the San
Jacinto River, Mystic Lake and Salt Creek in association
with Willows, Domino and Traver soils. Coulter’s
goldfields occurs as three core locations within the Plan
Area. The largest and most significant populations are
within the San Jacinto Wildlife Area and southern shores
of Mystic Lake. This represents the largest remaining
concentration of this species throughout its known range.
Although currently suppressed by discing and dryland
farming, the middle segment of the San Jacinto River
represents a Core Area. A third Core Area is located on
the alkali flats between Alberhill and Lake Elsinore. One
population is known to occur on Salt Creek. Small, or
historic populations, have also been reported from Anza,
the vicinity of Murrieta and Temecula, the lake bed of
Lake Elsinore, and at Woodcrest near Mockingbird
Canyon. The current status of many of these smaller
populations is unknown.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for Coulter’s
goldfields will be conducted as part of the project review
process for public and private projects within the Criteria
Area where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Coulter’s goldfields located as a result of
survey efforts shall be conserved in accordance with
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area at
least 20 of the known occurrences of this species,
including the three Core Areas: the San Jacinto
Wildlife Area and the southern shores of Mystic
Lake, the middle segment of the San Jacinto River
and a portion of the Alberhill locality.
Objective 3: Surveys for Coulter's goldfields will be conducted
for public and private projects within the Criteria
Area where suitable habitat is present (see Criteria
Area Species Survey Area Map, Figure 6-2 of the
MSHCP, Volume I). Coulter's goldfields located as
a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2 of the MSHCP, Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
three core localities (the San Jacinto
Wildlife Area and the southern shores of
Mystic Lake; along the middle segment of
the San Jacinto River; and a portion of the
Core Area at Alberhill) within large blocks
of Habitat in the MSHCP Conservation
Area. In addition, implementation of
Objective 3 for this species will provide
new data to guide Reserve Assembly,
m an a g e m e n t a n d m o n it o r in g .
Implementation of Objectives 4 and 5 for
this species will maintain alluvial
processes (floodplain hydrology and
flooding) upon which this species
depends.
Approximately 1,370 acres (17
percent) of potential Habitat for
Coulter's goldfields will be outside the
MSHCP Conserva t ion Area .
Twenty-five of the 80 occurrences
included in the UCR database,
herbarium records and CNDDB will be
outside the MSHCP Conservation
Area. However, the current status of
many of these small or historic
populations (reported from Anza, the
vicinity of Murrieta and Temecula, and
at Woodcrest near Mockingbird
Canyon) is unknown.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and enhancing the floodplain
processes of the San Jacinto River, upper Salt Creek and the
alkali wetlands near Nichols Road, including intermittent flooding
and periodic pooling. Particular management emphasis will be
given to preventing alteration of hydrology and floodplain
dynamics, weed abatement/fire and fire suppression activities,
off-road vehicle use, trampling and competition from non-native
plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-114
procedures described within Section 6.3.2, MSHCP,
Volume 1.
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Objective 5: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained
within the linkage in order to provide for the
distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change.
Coulter’s matilija poppy
(Romneya coulteri)
1 Coulter’s matilija poppy is designated as a Group 1
species because it has a wide distribution throughout the
Plan Area within suitable Habitat. Coulter’s matilija poppy
is known from the confluence of Leach and Dickey
Canyons; Alberhill (Mountain Avenue and canyons near
Alberhill); Fresno Canyon and Wardlow Canyon west of
Corona; and the Gavilan Plateau; Temescal Canyon near
Glen Eden and Hagador Canyon; and Horsethief Canyon.
Coulter’s matilija poppy occurs in dry washes and
canyons below 1,200 m in open, mildly disturbed sage
scrub, chaparral and along rocky drainages.
The University of California, Riverside (UCR) database has
35 occurrence points for this species, the majority of
which occur in the Santa Ana Mountains and east to
Temescal Canyon. The herbaria at UCR and the Rancho
Santa Ana Botanic Gardens contain eight records of this
species, scattered from the Santa Ana Mountains east to
the Gavilan Plateau.
The Coulter’s matilija poppy is restricted to the eastern
slopes and foothills of the Santa Ana Mountains. Most of
the records for this species are outside of the proposed
MSHCP Conservation Area. However, the existing records
are not believed to be indicative of the distribution of this
species and the MSHCP Conservation Area configuration
is expected to provide long-term Conservation of the
Objective 1: Include within the MSHCP Conservation Area
65,350 acres of chaparral and 5,300 acres of
coastal sage scrub below 1,200 feet on Forest
Service and Public/Quasi-Public Lands within the
Santa Ana Mountains Bioregion.
Objective 2: Within the MSHCP Conservation Area, confirm 30
localities (locality in this sense is not smaller than
one quarter section).
Conservation for this species will be
achieved by inclusion of at least 70,650
acres of suitable Conserved Habitat and
25 known localities within large blocks of
Habitat in the MSHCP Conservation Area.
About 26,730 acres of potential
Habitat for the Coulter's matilija poppy
will be outside the MSHCP
Conservation Area. Twenty-eight of
the 43 known occurrences are located
outside the MSHCP Conservation
Area, primarily in the vicinity of
Woodcrest, on the Gavilan Plateau, the
foothills of the Santa Ana Mountains.
None 8 General Management Measure 1.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-115
species. Incidental Take of this species is not included in
this permit until Conservation of the species in the Plan
Area has been demonstrated by reaching Objective 2.
Davidson’s saltscale
(Atriplex serenana var.
davidsonii)
3 Davidson’s saltscale is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to the alkali floodplains of the San
Jacinto River, Mystic Lake and Salt Creek in association
with Willows, Domino and Traver soils. Populations are
known from the Upper Salt Creek drainage area west of
Hemet and along the San Jacinto River floodplain from
Mystic Lake south to the Ramona Expressway where it
occurs in small, patchy populations. The Salt Creek
populations appear to represent the largest remaining
concentrations of this species known to exist. This
species may also occur in the vicinity of the Nichols Road
wetlands at Alberhill and Murrieta Hot Springs.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list surveys for Davidson’s
saltscale will be conducted as part of the project review
process for public and private projects within the Criteria
Area where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Davidson’s saltscale located as a result of
survey efforts shall be conserved in accordance with
procedures described within Section 6.3.2, MSHCP,
Volume 1.
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area the
three known localities of Davidson's saltscale at
Salt Creek, the San Jacinto River and the San
Jacinto Wildlife Area.
Objective 3: Surveys for the Davidson's saltscale will be
conducted as part of the project review process for
public and private projects within the Criteria Area
where suitable habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the
MSHCP, Volume I). Davidson's saltscale located
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2 of the MSHCP, Volume 1.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Objective 5: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
three core localities (Salt Creek west of
Hemet, the San Jacinto Wildlife Area and
along the middle segment of the San
Jacinto River) and two potential locations
(Nichols Road wetlands and near Murrieta
Hot Springs) within large blocks of Habitat
in the MSHCP Conservation Area.
Moreover, the configuration of the Criteria
Area and Public/Quasi-Public Lands
provides for maintenance of floodplain
processes along Salt Creek and the San
Jacinto River as described above. In
addition, implementation of Objective 3 for
this species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 1,370 acres (17
percent) of potential Habitat for
Davidson's saltscale will not be
conserved within the MSHCP
Conservation Area.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 General Management Measure 4. Reserve Managers will ensure
Habitat support functions within the MSHCP Conservation Area
by maintaining and enhancing the floodplain processes of the
San Jacinto River, Salt Creek and Mystic Lake, including
intermittent flooding and periodic pooling. Particular
management emphasis will be given to preventing alteration of
hydrology and floodplain dynamics, farming, fire and fire
suppression activities, off-road vehicle use, grazing and
competition from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-116
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained
within the linkage in order to provide for the
distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change.
Engelmann oak
(Quercus engelmanii)
2 Engelmann oak is designated as a Group 2 species
because of its specialized Habitat requirements and
limited distribution within the Plan Area. Engelmann oak
is restricted to southern oak woodlands and riparian/oak
woodlands. Although 75 occurrences of Engelmann oak
have been recorded within western Riverside County, the
majority of stands in the Plan Area occur in a twelve-by-
twelve-mile area around the Santa Rosa Plateau in the
foothills of the Santa Ana Mountains. Engelmann oaks
are found on the Plateau in both the open or savannah
phase and the riparian phase.
Objective 1: Include within the MSHCP Conservation Area at
least 19,070 acres of suitable Habitat (woodlands
and forests, including riparian, where they occur
below 1,325 m within the Santa Ana, Riverside
Lowlands and San Jacinto Foothills Bioregions).
Objective 2: Include within the MSHCP Conservation Area at
least 33 known occurrences of this species,
including the core locations at the Santa Rosa
Plateau and in the Santa Ana Mountains.
Objective 3: Within the MSHCP Conservation Area, maintain
recruitment at a minimum of 80 percent of the
conserved populations as measured by the
presence/absence of seedlings and/or saplings
across any consecutive five years.
Conservation for this species will be
achieved by inclusion of at least 19,070
acres of suitable Conserved Habitat and
33 known localities within large blocks of
Habitat and Linkages in the MSHCP
Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 9,300 acres (33
percent) of the potential Habitat will
not be included in the MSHCP
Conservation Area. Of this,
approximately 4,490 acres will be in
Rural/Mountains designation areas.
Forty-three occurrences will be
located outside of the MSHCP
Conservation Area; 29 of those 43
occurrences are located in the
Rural/Mountainous area.
None 8 1 to 5 Reserve Managers will avoid or minimize adverse effects to
Engelmann's oak to the maximum extent practicable. Reserve
Managers will manage known and future occurrences of this
species in order to maintain recruitment at a minimum of 80% of
the conserved populations as measured by the
presence/absence of seedlings and/or saplings across any
consecutive five years. Individual seedlings and/or saplings will
be followed in order to assemble demographic data.
Fish’s milkwort
(Polygala cornuta var.
fishiae)
2 Fish’s milkwort is designated as a Group 2 species. Fish’s
milkwort is associated with shaded areas within
cismontane oak woodlands and riparian woodlands,
although it also occurs in xeric and mesic chaparral
Habitat at elevations between 100 m and 1,100 m in the
Santa Ana and Agua Tibia Mountains. The known and
historic occurrences in the Plan Area are restricted to the
Tenaja/Santa Rosa Plateau area and the lower national
forest of the Santa Ana Mountains (San Mateo Canyon,
Santa Rosa Plateau, Temecula Canyon, Cole Canyon and
the Santa Margarita Ecological Reserve). Fish’s milkwort
has been recorded just outside the southern boundary of
Riverside County along the southern flank of the Agua
Tibia Mountains indicating that this species may also be
found along the northern slopes of the Agua Tibia
Mountains.
Objective 1: Include within the MSHCP Conservation Area at
least 123,580 acres of suitable Habitat (chaparral,
riparian scrub and woodland/forest between 100
and 1,100 m in the Santa Ana Mountains and Agua
Tibia Mountains Bioregions).
Objective 2: Include within the MSHCP Conservation Area at
least three of the known localities (Santa Rosa
Plateau, Santa Margarita Ecological Preserve, and
San Mateo Canyon).
Objective 3: Within the MSHCP Conservation Area, confirm 10
localities (locality in this sense is not smaller than
one quarter section) with at least 50 individuals
(ramets or genets) each (unless a smaller
population has been demonstrated to be
self-sustaining).
Conservation for this species will be
achieved by inclusion of at least 123,580
acres of suitable Conserved Habitat and at
least three known localities within large
blocks of Habitat at San Mateo Canyon in
the Santa Ana Mountains, the Santa Rosa
Plateau and the Santa Margarita Ecological
Preserve in the MSHCP Conservation
Area. In addition, implementation of
Objective 3 for this species will provide
new data to guide Reserve Assembly,
management and monitoring.
Approximately 75,210 acres will not
be included in the MSHCP
Conservation Area. Of nine mapped
localities, four (two at Temecula
Canyon and Cole Canyon west of
Murrieta , and two at Main Street
Canyon just south of Corona) are
located outside the MSHCP
Conservation Area. Currently
unknown occurrences outside the
MSHCP Conservation Area will be
subject to Take in accordance with
Section 6.1.4.
None 8 Reserve Managers will avoid or minimize adverse effects to this
species to the maximum extent practicable.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-117
Fish’s milkwort is restricted to the eastern slopes of the
Santa Ana Mountains and possibly the northern slopes of
the Agua Tibia Mountains. Although the MSHCP
Conservation Area configuration is expected to provide
long-term Conservation of the species, the distribution of
the species is not entirely understood. Incidental Take of
this species is not included in this permit until
Conservation of the species in the Plan Area has been
demonstrated by reaching Objective 3.
graceful tarplant
(Holocarpha virgata ssp.
elongata)
2 Graceful tarplant is designated as a Group 2 species
because although this species has a fairly scattered
distribution, the known occurrences are concentrated
within the Santa Ana Mountains and Foothills, primarily
within USFS Lands. Within the Plan Area, graceful
tarplant is restricted to coastal scrub, chaparral,
cismontane woodland, lower montane coniferous forest
and valley and foothill grasslands at elevations below 600
m within Western Riverside County.
Graceful tarplant is a Forest Service Sensitive Species
found in the Cleveland National Forest. Forest Service
Sensitive Plants are protected through the implementation
of Forest Plans and the biological evaluation (BE)
process, which considers the potential effects of Forest
Service activities on these species.
The MSHCP Conservation Area configuration is expected
to provide long-term Conservation of the species.
However, due to the age of the records (dating from 1959
to 1994), Incidental Take of this species is not included in
this permit until Conservation of the species in the Plan
Area has been demonstrated by reaching Objective 3.
Objective 1: Include within the MSHCP Conservation Area at
least 129,910 acres of suitable Habitat (chaparral,
coastal sage scrub, grassland, meadows and
marshes below 600 m).
Objective 2: Include within the MSHCP Conservation Area at
least eight of the known locations, including four
occurrences located on Santa Rosa Plateau and
four occurrences in the San Mateo Canyon
Wilderness Area.
Objective 3: Within the MSHCP Conservation Area, confirm 10
localities (locality in this sense is not smaller than
one quarter section) with 1,000 individuals each
(unless a smaller population has been
demonstrated to be self-sustaining).
Conservation for this species will be
achieved by inclusion of at least 129,910
acres of suitable Conserved Habitat and
eight known localities (on the Santa Rosa
Plateau and in the San Mateo Canyon
Wilderness Area of the Santa Ana
Mountains) within large blocks of Habitat
in the MSHCP Conservation Area. In
addition, implementation of Objective 3 for
this species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 156,180 acres (54
percent) of potential Habitat for
graceful tarplant will not be conserved.
One of the mapped locations is located
southwest of Cherry Street in
Temecula, outside of the MSHCP
Conservation Area. This locality dates
from 1967 and is likely extirpated.
None 8 Reserve Managers will avoid or minimize adverse effects to
graceful tarplant to the maximum extent practicable.
Hall‘s monardella
(Monardella macrantha
ssp. hallii)
2 Hall’s monardella is designated as a Group 2 species
because although this species has a fairly scattered
distribution (Santa Ana Mountains, San Jacinto
Mountains, San Bernardino Mountains and the Agua Tibia
Mountains), the known occurrences are concentrated
within the USFS lands. Within the Plan Area, Hall’s
monardella is restricted to chaparral, lower montane
coniferous forest, woodlands and forest, and valley and
Objective 1: Include within the MSHCP Conservation Area at
least 224,860 acres of suitable Habitat (chaparral,
grasslands, montane coniferous forest and
woodland forest within the Santa Ana Mountain,
San Jacinto Mountains, San Bernardino Mountains
and Agua Tibia Mountain Bioregions).
Conservation for this species will be
achieved by inclusion of at least 224,860
acres of suitable Conserved Habitat and
five known localities (two in the San
Jacinto Mountains, two in the Agua Tibia
Mountains and one in the Santa Ana
Mountains) within large blocks of Habitat
in the MSHCP Conservation Area.
Approximately 83,530 acres (27
percent) of potential Habitat for Hall’s
monardella will not be included within
the Criteria Area or existing
Public/Quasi-Public Lands. None of
the known occurrences for this
species will be outside the MSHCP
Conservation Area.
None 8 Reserve Managers will avoid or minimize adverse effects to
Hall's monardella populations to the maximum extent practicable.
Reserve Managers will manage known and future occurrences
of this species where recreational and fire-suppression activities
are allowed or planned.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-118
foothill grasslands. This is a species which is found
primarily on USFS lands at Cahuilla Mountain and a
locality south west of Pine Cove in the San Jacinto
Mountains, the north slope of the Agua Tibia Mountains,
and Santiago Peak in the Santa Ana Mountains.
This species is designated as a Forest Service Sensitive
Species. Forest Service Sensitive Species are protected
through the implementation of Forest Plans and the
biological evaluation (BE) process, which considers the
potential effects of Forest Service activities on these
species.
Objective 2: Include within the MSHCP Conservation Area at
least the five known locations of this species:
Cahuilla Mountain and an occurrence southwest of
Pine Cove in the San Jacinto Mountains, two
occurrences on the north slope of the Agua Tibia
Mountains and Santiago Peak in the Santa Ana
Mountains.
Hammitt's clay-cress
(Sibaropsis hammittii)
3 Hammitt's clay-cress is designated as a Group 3 species
because of its limited geographic distribution and special
habitat requirements. Within the Plan Area, Hammitt's
clay-cress is only known from the Elsinore Peak area of
the Santa Ana Mountains in grasslands. Suitable habitat
consists of coastal sage scrub, chaparral, and peninsular
juniper woodland on clay soils between 300 and 1,000 m
in the Santa Ana Mountains and Riverside Lowlands
bioregions. Suitable habitat for this species is found on
Public/Quasi-Public (Forest Service) and private lands.
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for Hammitt's clay-cress will
be conducted as part of the project review process for
public and private projects within the Narrow Endemic
Plant Species survey area where suitable habitat is
present (see Narrow Endemic Plant Species Survey Area
Map, Figure 6-1 of the MSHCP, Volume I). Hammitt's
clay-cress located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.1.3, MSHCP, Volume 1.
Objective 1: Include within the MSHCP Conservation Area at
least 21,260 acres of suitable habitat (grassland,
coastal sage scrub, chaparral and peninsular
juniper woodland between 300 and 1,000 m in the
Riverside Lowlands and Santa Ana Mountains
bioregions). This will include at least 2,070 acres
of clay soils: Altamont (190 acres), Auld (250
acres), Bosanko (600 acres), Claypit (100 acres)
and Porterville (930 acres) soils underlying the
suitable habitat.
Objective 2: Include within the MSHCP Conservation Area the
Core Area for this species, including at least the
one known locality near Elsinore Peak and suitable
habitat adjacent to these occurrences.
Objective 3: Surveys for Hammitt's clay-cress will be
conducted as part of the project review process for
public and private projects within the Narrow
Endemic Plant Species survey area where suitable
habitat is present (see Narrow Endemic Plant
Species Survey Area Map, Figure 6-1 of the
MSHCP, Volume I). Hammitt's clay-cress located
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.1.3, MSHCP, Volume I.
Conservation for this species will be
achieved by inclusion of at least 21,260
acres of suitable Conserved Habitat and
five known occurrences near Elsinore
Peak within large blocks of Habitat in the
MSHCP Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 15,825 acres (42%) of
suitable Habitat will not be conserved.
It is important to note, however, that
this suitable Habitat is included within
the Narrow Endemic Plant Species
survey area and Conservation of this
suitable Habitat will be addressed in
accordance with the procedures
presented in the Narrow Endemic
Plant Species policy described in
Section 6.1.3 of the MSHCP, Volume
I.
Yes, see Section
6.1.3 (Protection
o f N a r r o w
Endemic Plant
Species).
8 Reserve Managers will manage this species with regard to
alteration of the natural fire regime, trampling, off-road vehicle
use, and non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-119
heart-leaved pitcher sage
(Lepechinia cardiophylla)
2 Heart-leaved pitcher sage is designated as a Group 2
species because of its restriction to the Santa Ana
Mountains, primarily (potentially all) within USFS lands.
Within the Plan Area, heart-leaved pitcher sage is
restricted to chaparral and woodlands and forests at
elevations between 550 m and 1,370 m within the Santa
Ana Mountains. All populations occur within USFS lands
except four occurrences, which are suspect and should
be verified.
This is a species which is found in a number of locations
in the Santa Ana Mountains, including Sierra Peak, Indian
Truck Trail, Bald Peak, Trabuco Peak, Horsethief Trail,
Pleasants Peak and the ridge between Ladd Canyon and
East Fork Canyon. All of the undisputed occurrences are
located on USFS lands.
Heart-leaved pitcher sage is designated a Forest Service
Sensitive Species. Forest Service Sensitive Species are
protected through the implementation of Forest Plans and
the biological evaluation (BE) process, which considers
the potential effects of Forest Service activities on these
species.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for heart-
leaved pitcher sage will be conducted as part of the
project review process for public and private projects
within the Criteria Area where suitable Habitat is present
(see Criteria Area species Survey Area Map, Figure 6-2 of
the MSHCP, Volume I). Heart-leaved pitcher sage located
as a result of survey efforts shall be conserved in
accordance with procedures described within Section
6.3.2, MSHCP, Volume 1.
Objective 1: Include within the MSHCP Conservation Area at
least 56,950 acres of suitable Habitat (chaparral,
woodlands and forests between 550 m and 1,370
m within the Santa Ana Mountains Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least six known populations in the Santa Ana
Mountains (within the vicinity of Sierra Peak, Indian
Truck Trail, Bald Peak, Trabuco Peak, Horsethief
Trail, Pleasants Peak, and the ridge between Ladd
Canyon and East Fork Canyon).
Objective 3: Surveys for the heart-leaved pitcher sage will be
conducted as part of the project review process for
public and private projects within the Criteria Area
where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the
MSHCP, Volume I). Heart-leaved pitcher sage
located as a result of survey efforts shall be
conserved in accordance with procedures
described within Section 6.3.2 of the MSHCP,
Volume 1.
Conservation for this species will be
achieved by inclusion of at least 56,950
acres of suitable Conserved Habitat and
six known localities (in the Santa Ana
Mountains of the Cleveland National
Forest) within large blocks of Habitat in the
MSHCP Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 14,560 acres (20
percent) of potential Habitat for heart-
leaved pitcher sage will not be
included within the Criteria Area or
existing Public/Quasi-Public Lands.
Four populations of heart-leaved
pitcher sage recorded outside of the
Santa Ana Mountains (Cleveland
National Forest) and outside of the
MSHCP Conservation Area are
suspect and should be verified.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 Reserve Managers will avoid or minimize adverse effects to
heart-leaved pitcher sage to the maximum extent practicable.
Reserve Managers will manage known and future occurrences
of this species where transmission lines and fire-suppression
activities are allowed or planned.
intermediate mariposa lily
(Calochortus weedii var.
intermedius)
2 Intermediate mariposa lily is designated as a Group 2
species because of its scattered but restricted distribution
within particular Habitat associations. Within the Plan
Area, this species is known from Vail Lake and the hills
west of Crown Valley. Intermediate mariposa lily is also
known from Sierra Peak, along the border between
Orange County and Riverside County, although this
Objective 1: Include within the MSHCP Conservation Area at
least 195,730 acres of suitable Habitat (chaparral
and coastal sage scrub between 120 and 850 m).
Objective 2: Include within the MSHCP Conservation Area at
least two of the known localities (hills west of
Crown Valley and Vail Lake) and possibly a third
Conservation for this species will be
achieved by inclusion of at least 195,730
acres of suitable Conserved Habitat and at
least two known localities within large
blocks of Habitat at Vail Lake and Crown
Valley in the MSHCP Conservation Area.
Approximately 147,550 (43 percent) of
potential Habitat will not be included in
the MSHCP Conservation Area. All of
the known occurrences of this species
will be conserved.
None 8 Reserve Managers will avoid or minimize adverse effects to
intermediate mariposa lily to the maximum extent practicable.
Reserve Managers will manage known and future occurrences
of this species where fire, fire-suppression or road construction
activities are allowed or proposed.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-120
occurrence may not lie within the boundaries of the Plan
Area. This species occurs on dry, rocky open slopes and
rock outcrops in coastal scrub and chaparral at elevations
from 120 m to 850 m.
This species is designated as a Forest Service Sensitive
Species. Forest Service Sensitive Plants are protected
through the implementation of Forest plans and the
biological evaluation (BE) process, which considers the
potential effects of Forest Service activities on this
species.
locality (Sierra Peak area of the Santa Ana
Mountains) of the species.
Jaeger’s milk-vetch
(Astragalus pachypus var.
jaegeri)
2 Jaeger's milk-vetch is designated as a Group 2 species
because of its several Core Areas. Although the species
has a fairly scattered distribution (Vail Lake near Kolb
Creek, on the south side of Aguanga Valley, in the vicinity
of Sage, Temecula Canyon, in the vicinity of Castile
Canyon, in a canyon west of Portrero Creek, and at the
base of Agua Tibia Mountain), Jaeger's milk-vetch
appears to be concentrated in the vicinity of Sage, Vail
Lake near Kolb Creek, and the base of Agua Tibia
Mountains. Jaeger's milk-vetch is endemic to northern
San Diego and southern Riverside counties.
Jaeger's milk-vetch occurs on dry ridges and valleys and
open sandy or rocky slopes in coastal scrub, chaparral,
valley and foothill grassland and cismontane woodland
Habitats at elevations of 365 to 915 m (CNDDB 2000;
CNPS 2001). Most areas of known written descriptions
of the species are being conserved either within the
Criteria Area or existing Public/Quasi-Public Lands
including the Core Areas: Sage, Vail Lake near Kolb
Creek, and the base of Agua Tibia Mountains.
This species is designated as a Forest Service Sensitive
Species which can be managed at the site specific level.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
Objective 1: Include within the MSHCP Conservation Area
249,440 acres of suitable Habitat (chaparral,
grassland, coastal sage scrub and woodland/forest
between 365 and 915 m in the appropriate
Bioregions).
Objective 2: Include within the MSHCP Conservation Area the
seven known localities (18 occurrences) of this
species at Aguanga Valley, San Jacinto Mountains,
Potrero Creek, Sage, Temecula Canyon, and the
Core location at Vail Lake and the base of the Agua
Tibia Mountains.
Conservation for this species will be
achieved by inclusion of at least 249,440
acres of suitable Conserved Habitat and
seven known localities (Aguanga Valley,
Sage, Vail Lake, San Jacinto Mountains,
Agua Tibia Mountains, Potrero Creek, and
Temecula Canyon) within large blocks of
Habitat in the MSHCP Conservation Area.
Approximately 223,800 acres (48
percent) of potential Habitat will not be
conserved. Of the 11 herbarium
records, two of the localities will not
be conserved: Beaumont (dating from
1897) and the foothills of the Agua
Tibia Mountains (dating from 19997).
Of the three UCR database point
localities for this species, one of the
records (Beaumont 1897) will not be
conserved; however, this overlaps
with the herbarium Beaumont 1897
record.
None 8 Reserve Managers will avoid or minimize adverse effects to
Jaeger's milkvetch to the maximum extent practicable. Reserve
Managers will manage known and future occurrences of this
species where agricultural conversion and grazing is allowed or
proposed.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-121
Johnston’s rock cress
(Arabis johnstonii)
3 Johnston’s rock cress is designated as a Group 3 species
because it is endemic to the San Jacinto Mountains and
the known populations require specific monitoring and
management. Within the Plan Area, Johnston’s rock
cress is restricted to the Garner Valley/Lake Hemet area
of the San Jacinto Mountains in chaparral and pine forest
Habitat at elevations of 1,400 m to 2,150 m. Suitable
Habitat for this species is found on Public/Quasi-Public
(Forest Service) and private lands. In the Plan Area, most
of the occurrences within the Forest are in two grazing
allotments. The Forest Service has taken steps to
minimize the effects of grazing where this plant is present
on grazing allotments.
This is a species on the Narrow Endemic Plant list
(Section 6.1.3) and surveys for Johnston’s rock cress will
be conducted as part of the project review process for
public and private projects within the Narrow endemic
Plant Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species Survey Area
Map, Figure 6-1 of the MSHCP, Volume I). Johnston’s
rock cress located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.1.3, MSHCP, Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least 34,975 acres of suitable Habitat (chaparral
and pine forest Habitat between 1,400 and 2,150
m within the San Jacinto Mountains Bioregion).
Objective 2: Include within the MSHCP Conservation Area the
two Core Areas for this species, including at least
17 of the known occurrences in Garner Valley and
Mountain Springs and suitable Habitat adjacent to
these occurrences.
Objective 3: Surveys for Johnston’s rock cress will be
conducted as part of the project review process for
public and private projects within the Narrow
Endemic Plant Species survey area where suitable
Habitat is present (see Narrow Endemic Plant
Species Survey Area Map, Figure 6-1 of the
MSHCP, Volume I). Johnston’s rock cress located
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.1.3, MSHCP, Volume I.
Conservation for this species will be
achieved by inclusion of at least 34,975
acres of suitable Conserved Habitat and
17 known localities within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 11,810 acres (25
percent) of potential Habitat will not be
conserved. According to the UCR
database, one of the mapped locations
is located on private lands and one of
the CNDDB records is not conserved.
It is important to note, however, that
this potential Habitat and the mapped
location are included within the
Narrow Endemic Plant Species survey
area and Conservation of this potential
Habitat and known location will be
addressed in accordance with the
procedures presented in the Narrow
Endemic Plant Species policy
described in Section 6.1.3 of the
MSHCP, Volume I.
Yes, see Section
6.1.3 (Protection
of Narrow
Endemic Plant
Species)
8 Reserve Managers will avoid or minimize adverse effects to
Johnston's rock cress to the maximum extent practicable.
Reserve Managers will manage known and future occurrences
of this species where fire and fire suppression, off-road vehicle
use, and grazing activities are allowed or proposed.
lemon lily
(Lilium parryi)
2 Lemon lily is designated as a Group 2 species because it
is restricted to the San Jacinto Mountains, and has site
specific monitoring and management requirements.
Within the Plan Area, lemon lily is restricted to forested,
shady stream banks within narrow canyon bottoms,
higher than 1,300 m above mean sea level within the San
Jacinto Mountains Bioregion. In Western Riverside
County, lemon lily is considered to be limited to the San
Jacinto Mountains (Reiser 1994; Skinner 1988). The
known localities are within the San Jacinto Mountains.
This plant is designated as a Forest Service Sensitive
Species. Forest Service Sensitive Species are protected
through the implementation of Forest Plans and the
biological evaluation (BE) process, which considers the
Objective 1: Include within the MSHCP Conservation Area at
least 10,250 acres of suitable Habitat (woodland/
forest and riparian scrub, woodland and forest
above 1,300 m within the San Jacinto Mountains
Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least six localities (seven occurrences) within the
San Jacinto Mountains.
Conservation for this species will be
achieved by inclusion of at least 10,250
acres of suitable Conserved Habitat and
17 known localities within large blocks of
Habitat in USFS lands in the San Jacinto
Mountains w i t h in the MSHCP
Conservation Area.
Approximately 1,170 acres (10
percent) of potential Habitat for lemon
lily will not be conserved. Of the
records in the UCR database and the
herbaria at UCR and Rancho Santa
Ana Botanic Gardens, five of the
mapped locations are located on
private lands within the San Jacinto
Mountains and will not be conserved.
None 8 Reserve Managers will avoid or minimize adverse effects to
lemon lily to the maximum extent practicable. Reserve
Managers will manage this species for pollinators,
over-collection, flood control activities and competition with
non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-122
potential effects of Forest Service activities on these
species.
little mousetail
(Myosurus minimus ssp.
apus)
3 Little mousetail is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to vernal pools in association with clay
or alkali soils. Little mousetail occurs as three Core
locations within the Plan Area: the Salt Creek population
west of Hemet (the largest population within southern
California), and the two populations on the Santa Rosa
Plateau. This species also occurs at Harford Springs
County Park.
This is a species on the Additional Surveys Needs and
Procedures (Section 6.3.2) and surveys for little
mousetail will be conducted as part of the project review
process for public and private projects within the Criteria
Area where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Little mousetail located as a result of survey
efforts shall be conserved in accordance with procedures
described within Section 6.3.2, MSHCP, Volume 1.
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area at
least five of the known locations of this species,
including Harford Springs County Park on the
Gavilan Plateau and the three core locations: one
along Salt Creek west of Hemet and two on the
Santa Rosa Plateau.
Objective 3: Surveys for the little mousetail will be conducted
as part of the project review process for public and
private projects within the Criteria Area where
suitable habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the
MSHCP, Volume I). Little mousetail located as a
result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2 of the MSHCP, Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
three core localities (the Salt Creek
population west of Hemet and the two
populations on the Santa Rosa Plateau)
within large blocks of Habitat in the
MSHCP Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring. Implementation of Objectives
4 and 5 for this species will maintain
alluvial processes (floodplain hydrology
and flooding) upon which this species
depends.
Approximately 1,370 acres of potential
Habitat for little mousetail will be
outside the MSHCP Conservation
Area. The historic populations at
March Air Reserve Base and within the
Edgemont area are likely extirpated.
The populations reported from the
vicinity of Lake Elsinore, Wildomar,
and Menifee, if still extant, are located
outside the MSHCP Conservation
Area.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and enhancing the floodplain
processes of the San Jacinto River, Salt Creek and Mystic Lake,
including intermittent flooding and periodic pooling. Particular
management emphasis will be given to preventing alteration of
hydrology and floodplain dynamics, farming, fire and fire
suppression activities, off-road vehicle use, grazing and
competition from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-123
Objective 5: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained in
order to provide for the distribution of the species
to shift over time as hydrologic conditions and
seed bank sources change.
long-spined spine flower
(Chorizanthe
polygonoides var.
longispina)
2 Long-spined spine flower is designated as a Group 2
species because of its fairly wide distribution within
specific soil restrictions and the presence of two Core
locations. The species is known from Temescal Canyon
area, Lake Mathews-Estelle Mountain Reserve, Harford
Springs Park, the Motte Reserve, the Gavilan Plateau,
Alberhill, French Valley, Vail Lake, Agua Tibia Mountains,
Murrieta, the southern Santa Ana Mountains, the Santa
Rosa Plateau, Skunk Hollow, the Paloma Valley, Lake
Skinner Preserve, and along the north slopes of the
Palomar Mountains. Long-spined spine flower appears to
be most prevalent in the vicinity of Lake Mathews and the
Agua Tibia Mountains.
Objective 1: Include within the MSHCP Conservation Area at
least 389,510 acres of suitable Habitat (chaparral,
coastal sage scrub and grassland) including
Altamont (190 acres), Auld (400 acres), Bosanko
(470 acres), Porterville (100 acres), and claypit
(600 acres) soils.
Objective 2: Include within the MSHCP Conservation Area at
least 32 locations of this species, including the two
Core locations at Lake Matthews and in the Agua
Tibia Mountains.
Conservation for this species will be
achieved by inclusion of at least 389,510
acres of suitable Conserved Habitat and at
least 57 known occurrences at 15
locations (including the Core localities at
Lake Mathews and the Agua Tibia
Mountains) within large blocks of Habitat
at Lake Mathews, Vail Lake, Santa Rosa
Plateau, Santa Ana Mountains, San
Jacinto Mountains and Agua Tibia
Mountains in the MSHCP Conservation
Area.
Approximately 309,020 acres will not
be included in the MSHCP
Conservation Area. Nineteen of the 55
records in the UCR database and the
herbaria at UCR and Rancho Santa
Ana Botanic Gardens will not be
conserved within the MSHCP
Conservation Area. The 19
occurrences include the following
localities: Temescal Canyon, Murrieta,
Gavilan Plateau, Alberhill, City of
Riverside, Sedco Hills, Antelope
Valley, Rancho California, and the
Santa Ana Mountains. Three of the
CNDDB occurrences at Lake Mathews
will not be conserved.
None 8 Reserve Managers will avoid or minimize adverse effects to
long-spined spine flower to the maximum extent practicable.
Reserve Managers will manage this species regarding threats to
this species, including competition with non-native grasses,
off-road vehicle use, sheep and cattle grazing, and discing.
many-stemmed dudleya
(Dudleya multicaulis)
3 Many-stemmed dudleya is designated as a Group 3
species because of its limited geographic distribution in
Riverside County and specialized Habitat requirements.
A number of populations exist within western Riverside
County; however, these are concentrated within the Santa
Ana Mountains Bioregion and western portion of the
Riverside Lowlands Bioregion, with the majority of the
populations known from the Temescal Canyon, Gavilan
Plateau, and Alberhill areas and the Santa Ana Mountains,
including the San Mateo Wilderness Area of the Cleveland
National Forest. Many-stemmed dudleya is associated
with openings in chaparral, coastal sage scrub, and
grasslands underlain by clay and cobbly clay soils of the
following series: Altamont, Auld, Bosanko, Claypit, and
Porterville.
This is a species on the Narrow Endemic Plant list
(Section 6.1.3) and surveys for many-stemmed dudleya
will be conducted as part of the project review process
Objective 1: Include within the MSHCP Conservation Area at
least 142,680 acres of suitable Habitat (chaparral,
coastal sage scrub and grassland below 700 m in
the Riverside Lowlands and Santa Ana Mountain
Bioregions) in the Plan Area, including 1,575 acres
of clay soils: 190 acres of Altamont, 210 acres of
Auld, 490 acres of Bosanko, 100 acres of Claypit
soils and 585 acres of Porterville soils.
Objective 2: Include within the MSHCP Conservation Area at
least 26 of the known occurrences of
many-stemmed dudleya, including the
occurrences at Estelle Mountain, Temescal
Canyon, the Santa Ana Mountains, Gavilan Hills,
Alberhill Creek, and Prado Basin.
Objective 3: Surveys for many-stemmed dudleya will be
conducted as part of the project review process for
public and private projects within the Narrow
Conservation for this species will be
achieved by inclusion of at least 142,680
acres of suitable Conserved Habitat and
26 known localities (Estelle Mountain,
Temescal Canyon, the Santa Ana
Mountains, Gavilan Hills, Alberhill Creek,
Prado Basin) within large blocks of Habitat
in the MSHCP Conservation Area. In
addition, implementation of Objective 3 for
this species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 185,710 acres (53
percent) of potential Habitat and 17
occurrences (Mira Loma, foothills of
the Santa Ana Mountains, Coronita,
east of Lake Elsinore and near
Alberhill) within the Plan Area will not
be conserved; however, all of the Core
locations will be included in the
MSHCP Conservation Area. Portions
of additional populations will be
addressed through application of the
Narrow Endemics policy described in
Section 6.1.3 of the MSHCP, Volume
I.
Yes, see Section
6.1.3 (Protection
o f N a r r o w
Endemic Plant
Species)
8 Reserve Managers will avoid or minimize adverse effects to the
many-stemmed dudleya to the maximum extent practicable.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-124
for public and private projects within the Narrow Endemic
Plant Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species Survey Area
Map, Figure 6-1 of the MSHCP, Volume I).
Many-stemmed dudleya located as a result of survey
efforts shall be conserved in accordance with procedures
described within Section 6.1.3, MSHCP, Volume 1.
This species is designated as a Forest Service Sensitive
Species which can be managed at the site specific level.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
Endemic Plant Species survey area where suitable
Habitat is present (see Narrow Endemic Plant
Species Survey Area Map, Figure 6-1 of the
MSHCP, Volume I). Many-stemmed dudleya
located as a result of survey efforts shall be
conserved in accordance with procedures
described within Section 6.1.3, MSHCP, Volume I.
Mojave tarplant
(Deinandra mohavensis)
(formerly known as
Hemizonia mohavensis)
2 Mojave tarplant is designated as a Group 2 species
because it is restricted to the San Jacinto Mountains,
primarily within USFS lands. Within the Plan Area, Mojave
tarplant is restricted to low sand bars in river beds, along
stream channels and in ephemeral grassy areas in
riparian scrub and chaparral at elevations between 850 m
to 1,575 m in the San Jacinto Mountains Bioregion.
The California Natural Diversity Database (CNDDB)
contains three occurrences for this species, all located
along Highway 243 north of Pine Cove within the San
Jacinto Mountains and the University of California,
Riverside (UCR) GIS database and UCR herbarium
contain five occurrences, three in the San Jacinto
Mountains, one near the San Jacinto River east of Hemet
and one northeast of Vail Lake (the Vail Lake record is
suspect). Seven of the eight known occurrences are
located within the MSHCP Conservation Area, although
two of the UCR herbarium records and two of the CNDDB
records appear to be the same locality.
Although the existing records are not believed to be
indicative of the distribution of this species, the MSHCP
Conservation Area configuration is expected to provide
long-term Conservation of the species. Incidental Take of
this species is not included in this permit until
Objective 1: Include within the MSHCP Conservation Area at
least 80,160 acres of suitable Habitat (chaparral,
riparian scrub, and woodland/forest between 850
and 1,575 m within the San Jacinto Mountains
Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least five of the known localities (represented by
seven records) within the San Jacinto Mountains
and Foothills and northeast of Vail Lake.
Objective 3: Include within the MSHCP Conservation Area at
least four localities (locality in this sense is not
smaller than one quarter section) occupying at
least 100 acres.
Conservation for this species will be
achieved by inclusion of at least 80,160
acres of suitable Conserved Habitat and
five known localities (six records at four
localities within the San Jacinto Mountains
and Foothills and one record northeast of
Vail Lake) within large blocks of Habitat in
the MSHCP Conservation Area. In
addition, implementation of Objective 3 for
this species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 27,850 acres (26
percent) of potential Habitat for Mojave
tarplant will not be conserved.
According to the University of
California, Riverside, GIS database, the
mapped location along the Banning
Idyllwild Panoramic Highway is
located on private lands and will not
be conserved. According to the
CNDDB, an occurrence within the San
Jacinto Mountains is located outside
of the MSHCP Conservation Area
(road right-of-way)and will not be
conserved.
None 8 Reserve Managers will avoid or minimize adverse effects to this
species to the maximum extent practicable. Reserve Managers
will manage known and future occurrences of this species
where flood control and grazing activities are allowed or
proposed.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-125
Conservation of the species in the Plan Area has been
demonstrated by reaching Objective 3.
mud nama
(Nama stenocarpum)
3 Mud nama is designated as a Group 3 species because
of its limited geographic distribution and specialized
Habitat requirements and management requirements for
hydrology. This species occurs within muddy
embankments of marshes and swamps, and within lake
margins and riverbanks. Only three occurrences of this
species are known from the Plan Area: two occurrences
along the San Jacinto River near Gilman Springs Road
and one occurrence in the USGS 7.5 minute El Casco
quadrangle.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for mud nama
will be conducted as part of the project review process
for public and private projects within the Criteria Area
where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Mud nama located as a result of survey efforts
shall be conserved in accordance with procedures
described within Section 6.3.2, MSHCP, Volume 1.
Objective 1: Include within the MSHCP Conservation Area at
least 7,050 acres of suitable habitat (meadows/
marshes and playa/vernal pools between 5 and
500 m within the Riverside Lowlands Bioregion).
Objective 2: Include within the MSHCP Conservation Area two
of the three known occurrences of this species
along the San Jacinto River near Gilman Springs
Road.
Objective 3: Surveys for mud nama will be conducted as part of
the project review process for public and private
projects within the Criteria Area where suitable
habitat is present (see Criteria Area Species Survey
Area Map, Figure 6-2 of the MSHCP, Volume I).
Mud nama located as a result of survey efforts
shall be conserved in accordance with procedures
described within Section 6.3.2 of the MSHCP,
Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Conservation for this species will be
achieved by inclusion of at least 7,050
acres of suitable Conserved Habitat and
two occurrences. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring. Implementation of Objective 4
for this species will maintain alluvial
processes (e.g., floodplain hydrology)
upon which this species depends.
Approximately 1,220 acres of potential
Habitat in the Plan Area will not be
conserved. The exact location of the
occurrence noted in the USGS 7.5
minute El Casco quadrangle is not
known; therefore, it is not known
whether this location will be conserved
within the MSHCP Conservation Area
or not.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 General Management Measure 4.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-126
Munz’s mariposa lily
(Calochortus palmeri var.
munzii)
3 Munz's mariposa lily is designated as a Group 3 species
because it is restricted to the San Jacinto Mountains,
primarily within USFS lands. Within the Plan Area, Munz's
mariposa lily is restricted to lower montane coniferous
forest (yellow pine forest), chaparral and meadows at
elevations between 900 m and 1,640 m within the San
Jacinto Mountains Bioregion. Occurrences are known
from Garner Valley along both sides of Highway 74, off
Forbes Ranch Road and near Mountain Center. CNNDB
contains three mapped occurrences in the San Jacinto
Mountains, two of which are located within existing
Public/Quasi-Public Lands.
This species is designated as a Forest Service Sensitive
Species which can be managed at the site specific level.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
This is a species on the Narrow Endemic Plant list
(Section 6.1.3) and surveys for Munz's mariposa lily will
be conducted as part of the project review process for
public and private projects within the Narrow Endemic
Plant Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species Survey Area
Map, Figure 6-1 of the MSHCP, Volume I). Munz's
mariposa lily located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.1.3, MSHCP, Volume 1.
Objective 1: Include within the MSHCP Conservation Area
33,470 acres of suitable Habitat (chaparral,
meadow, and montane coniferous forest between
900 and 1,640 m within the Narrow Endemic
Survey Area of the San Jacinto Mountains
Bioregion).
Objective 2: Include within the MSHCP Conservation Area 10 of
the known locations within the San Jacinto
Mountains, including Garner Valley.
Objective 3: Surveys for Munz's mariposa lily will be conducted
as part of the project review process for public and
private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species
Survey Area Map, Figure 6-1 of the MSHCP,
Volume I). Munz's mariposa lily located as a result
of survey efforts shall be conserved in accordance
with procedures described within Section 6.1.3 of
the MSHCP, Volume I.
Conservation for this species will be
achieved by inclusion of at least 33,470
acres of suitable Conserved Habitat and
10 known localities within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 9,880 acres (23
percent) of potential Habitat for Munz's
mariposa lily will not be included in the
MSHCP Conservation Area. Four of
the 14 localities will not be conserved
within the MSHCP Conservation Area.
It is important to note, however, that
this potential Habitat and these
mapped location are included within
the Narrow Endemic Plant Species
survey area and Conservation of this
potential Habitat and known locations
will be addressed in accordance with
the procedures presented in the
Narrow Endemic Plant Species policy
described in Section 6.1.3 of the
MSHCP, Volume I.
Yes, see Section
6.1.3 (Protection
of Narrow
Endemic Plant
Species)
8 Reserve Managers will avoid or minimize adverse effects to
Munz's mariposa lily to the maximum extent practicable.
Particular management emphasis will be given to competition
with non-native species, sheep and cattle grazing, off-road
vehicle use, fire and fire suppression activities and hydrology
altering activities.
Munz’s onion
(Allium munzii)
3 Munz's onion is designated as a Group 3 species because
of its limited geographic distribution in Riverside County
and specialized Habitat requirements. The species has a
scattered distribution (Estelle Mountain and the Gavilan
Plateau at Harford Springs Park southeast through the
hills north of Lake Elsinore, to the Paloma Valley, Skunk
Hollow, and Lake Skinner area) and is associated with
clay and cobbly clay soils which include the following
series: Altamont, Auld, Bosanko, Claypit, and Porterville.
Objective 1: Include within the MSHCP Conservation Area at
least 21,260 acres of suitable Habitat (grassland,
coastal sage scrub, chaparral and peninsular
juniper woodland between 300 and 1,000 m in the
Riverside Lowlands and Santa Ana Mountains
Bioregions). This will include at least 2,070 acres
of clay soils: Altamont (190 acres), Auld (250
acres), Bosanko (600 acres), Claypit (100 acres)
and Porterville (930 acres) soils underlying the
suitable Habitat.
Conservation for this species will be
achieved by inclusion of at least 21,260
acres of suitable Conserved Habitat and
15 known localities within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 15,825 acres of
potential Habitat in the Plan Area will
not be conserved. Fifty percent of the
core locations at Harford Springs and
Estelle Mountain occur on private
lands but will be conserved in
accordance with the Narrow Endemics
policy described in Section 6.1.3 of
the MSHCP, Volume I. Two
populations (EO 5 and EO 16) are
Yes, see Section
6.1.3 (Protection
of Narrow
Endemic Plant
Species)
8 Reserve Managers will manage known and future occurrences
of this species for competition with non-native plant species,
clay mining, off-road vehicle use and discing activities.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-127
This is a species on the Narrow Endemics Plant list
(Section 6.1.3) and surveys for Munz's onion will be
conducted as part of the project review process for public
and private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat is present
(see Narrow Endemic Plant Species Survey Area Map,
Figure 6-1 of the MSHCP, Volume 1). Munz's onion
located as a result of survey efforts shall be conserved in
accordance with procedures described within Section
6.1.3, MSHCP, Volume 1.
Objective 2: Include within the MSHCP Conservation Area at
least 13 localities within Temescal Valley and the
southwestern portion of Plan Area, including the
following Core Areas: Harford Springs Park,
privately owned EO 5 population in Temescal
Valley, Alberhill, DiPalma Rd, Estelle Mountain,
Domenigoni Hills, Lake Skinner, Bachelor
Mountain, Elsinore Peak, Scott Road, North Peak,
and northeast of Alberhill (EO 16).
Objective 3: Surveys for the Munz's onion will be conducted as
part of the project review process for public and
private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species
Survey Area Map, Figure 6-1 of the MSHCP,
Volume I). Munz's onion located as a result of
survey efforts shall be conserved in accordance
with procedures described within Section 6.1.3 of
the MSHCP, Volume I.
completely outside the MSHCP
Conservation Area but will be
conserved in accordance with the
Narrow Endemics policy.
Nevin’s barberry
(Berberis nevinii)
3 Nevin's barberry is designated as a Group 3 species
because of its narrowly defined geographic distribution
(primarily the San Timoteo/Badlands area, Vail Lake and
the Agua Tibia Mountains) and dependence on natural fire
regimes.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for Nevin's
barberry will be conducted as part of the project review
process for public and private projects within the Criteria
Area where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Nevin's barberry located as a result of survey
efforts shall be conserved in accordance with procedures
described within Section 6.3.2, MSHCP, Volume 1.
Objective 1: Include within the MSHCP Conservation Area at
least 8,000 acres of suitable Habitat (chaparral and
Riversidean alluvial fan sage scrub between 300
and 659 m in the Vail Lake area as depicted on
Figure 6-1, the Narrow Endemic Plant Species
Survey Area and the Agua Tibia Mountains
Bioregion).
Objective 2: Include within the MSHCP Conservation Area the
known locations for Nevin's barberry in the San
Timoteo/Badlands area, Jurupa Hills and Agua
Tibia/Vail Lake area.
Objective 3: Surveys for this species will be conducted as part
of the project review process for public and private
projects within the Criteria Area where suitable
Habitat is present (see Criteria Area Species
Survey Area Map, Figure 6-2 of the MSHCP,
Volume 1). Nevin's barberry located as a result of
survey efforts shall be conserved in accordance
with procedures described within Section 6.3.2,
MSHCP, Volume 1.
Conservation for this species will be
achieved by inclusion of at least 8,000
acres of suitable Conserved Habitat and
49 known localities within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 3,990 acres (33
percent) of potential Habitat for Nevin's
barberry will be outside the MSHCP
Conservation Area. A lone individual
reported from a rocky outcrop in a
residential area in the city of Riverside
(U.S. Fish and Wildlife Service 1998)
is presumed to be impacted. The
historic (1927) Aguanga location could
be impacted. The Temecula location
needs to be verified (CNDDB) and
could be impacted
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 Reserve Managers will manage the known and future
occurrences of this species for competition with non-native
species, flood control activities and alteration of the natural fire
regime.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-128
ocellated Humboldt lily
(Lilium humboldtii ssp.
ocellatum)
2 Ocellated Humboldt lily is designated as a Group 2
species. The known occurrences are concentrated within
the Santa Ana and Agua Tibia mountains, primarily within
USFS Lands within the Plan Area. Ocellated Humboldt lily
is associated with riparian corridors in lower montane
coniferous forest and coastal chaparral below 1,691 m
(5,500 feet) within the Agua Tibia and Santa Ana
Mountains Bioregions. This species typically occurs on
lower stream benches but can also occur on shaded, dry
slopes, beneath a dense coniferous canopy and
cismontane oak woodland (Boyd and Banks 1995; CNPS
2001).
Most populations are concentrated in the Santa Ana
Mountains or along the north slope of the Palomar
Mountains (Reveal and Hardham 1989; Boyd and Banks
1995; Boyd et al. 1995; Banks 1999). The Forest Service
Assessment states that occurrences of this plant are
found on all four southern California National Forests.
Plants in the Cleveland and San Bernardino Forests are
found in low-elevation riparian areas and seeps of
chaparral canyons.
Objective 1: Include within the MSHCP Conservation Area at
least 7,700 acres of suitable Habitat (woodland/
forest below 1,691 m within the Santa Ana
Mountains and Agua Tibia Mountains Bioregions).
Objective 2: Include within the MSHCP Conservation Area at
least four of the known locations at Arroyo Seco
Canyon in the Agua Tibia Wilderness Area and
Fisherman's Camp in Tenaja Canyon and the
historic occurrences known from Castro Canyon,
Horsethief Canyon, Elsinore Mountains; and
Corona between Tin Mine Canyon and Santiago
Peak, Skyline Drive populations.
Conservation for this species will be
achieved by inclusion of at least 7,700
acres of suitable Conserved Habitat and at
least four known localities within large
blocks of Habitat on USFS lands within the
Santa Ana Mountains and the Agua Tibia
Mountains in the MSHCP Conservation
Area.
Approximately 3,820 acres (33
percent) of potential Habitat for
ocellated Humboldt lily will not be
included in the MSHCP Conservation
Area. The two historic (1955 and
1966) localities in Horsethief Canyon
and near Corona, will be located
outside the MSHCP Conservation
Area.
None 8 Reserve Managers will manage the known and future
occurrences of this species for the potential for collection by
humans and proximity of existing and planned trail systems.
Orcutt’s brodiaea
(Brodiaea orcuttii)
3 Orcutt's brodiaea is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for hydrology. Within the Plan Area, this
species is restricted to ephemeral wetlands on the Santa
Rosa Plateau, at Miller Mountain within the San Mateo
Wilderness Area and along the San Jacinto River south of
Perris. The Miller Mountain population of Orcutt's
brodiaea occurs with thread-leaved brodiaea at this
location.
This species is designated as a Forest Service Sensitive
Species which can be managed at the site specific level.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
Objective 1: Include within the MSHCP Conservation Area one
occurrence at Miller Mountain within the San
Mateo Wilderness Area; a complex of about five
occurrences on the Mesa de Burro, Mesa de
Colorado, and Mesa de la Punta on the Santa Rosa
Plateau within the Santa Rosa Plateau Preserve;
and one occurrence along the San Jacinto River.
Objective 2: Include within the MSHCP Conservation Area the
watershed of the vernal pool complexes at the
Santa Rosa Plateau, at Miller Mountain and along
the San Jacinto River in order to maintain
hydrologic conditions.
Conservation for this species will be
achieved by inclusion of suitable
Conserved Habitat and three known
localities (including watershed) within the
MSHCP Conservation Area.
Two records from 1960, located in the
vicinity of Murrieta Hot Springs and
west of the Santa Rosa Plateau, will
not be conserved in the MSHCP
Conservation Area.
None 8 General Management Measure 4. Reserve Managers will
maintain the hydrological processes of the watersheds
supporting the occupied vernal pools at the Santa Rosa Plateau,
the San Jacinto River and the San Mateo Wilderness Area.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-129
Palmer’s grapplinghook
(Harpagonella palmeri)
2 Palmer's grapplinghook is designated as a Group 2
species because it is known from several Core Areas and
is restricted to particular soils series within the Plan Area.
Although the species has a scattered distribution,
locations appear to be concentrated in the western
portion of the Plan Area. Palmer's grapplinghook is
associated with clay and cobbly clay soils in chaparral,
coastal sage scrub, valley and foothill grasslands (Reiser
2001), and scrub oak woodland (CNDDB) below 1500
feet (500 m). Within the Plan Area, populations are
known from the Riverside Lowlands, San Jacinto Foothill,
and Santa Ana Mountains Bioregions.
Objective 1: Include within the MSHCP Conservation Area at
least 90,490 acres of suitable Habitat (chaparral,
coastal sage scrub, and grassland below 500 m in
the Riverside Lowlands, Santa Ana Mountains and
San Jacinto Foothills Bioregions) in the Plan Area,
including 2,130 acres of clay soils: 190 acres of
Altamont, 350 acres of Auld, 570 acres of
Bosanko, 100 acres of Claypit soils and 920 acres
of Porterville soils.
Objective 2: Include within the MSHCP Conservation Area at
least 24 of the known occurrences of this species
at Temescal Wash, Alberhill, Lake Elsinore,
Antelope Valley, Bachelor Mountain, Vail Lake,
Lake Mathews, Harford Springs Park, Cleveland
National Forest, Skunk Hollow, Lake Skinner and
Vail Lake.
Conservation for this species will be
achieved by inclusion of at least 90,490
acres of suitable Conserved Habitat and
58 occurrences at 13 localities within
large blocks of Habitat (Vail Lake, Lake
Matthews, Lake Skinner, Antelope Valley,
Temescal Canyon, and the Cleveland
National Forest) in the MSHCP
Conservation Area.
Approximately 131,300 acres of
potential Habitat for Palmer's
grapplinghook will not be conserved in
the MSHCP Conservation Area. Of the
84 occurrences in the UCR database
and the herbarium records, 28 will not
be conserved, including occurrences
in the vicinity of Alberhill, Hemet Lake,
Paloma Valley, Murrietta Hot Springs,
Gavilan Plateau, El Cerrito, Santa Ana
Mountains, Lake Elsinore, Temescal
Canyon, Gavilan Hills, and Vail Lake.
None 8 Reserve Manager will avoid or minimize adverse effects to
Palmer’s grapplinghook to the maximum extent practicable.
Reserve Managers will manage known and future occurrences
of this species for competition with non-native species, fire and
fire suppression, farming, clay mining and grazing.
Palomar monkeyflower
(Mimulus diffusus)
2 Palomar monkeyflower is designated as a Group 2
species because although this species has a fairly
scattered distribution (San Jacinto Mountains along
Highways 74 and 243, the vicinity of Sage, the Santa
Rosa Plateau, French Valley north of Lake Skinner and
east of Lake Skinner), the known occurrences are
concentrated within the Santa Ana, Agua Tibia and San
Jacinto Mountains, primarily within USFS Lands. Within
the Plan Area, Palomar monkeyflower is restricted to
chaparral and montane coniferous forest at elevations
between 1,500 m to 2,000 m.
Objective 1: Include within the MSHCP Conservation Area at
least 23,800 acres of suitable Habitat (chaparral
and montane coniferous forest between 1,500 and
2,000 m within the Agua Tibia, San Jacinto and
Santa Ana Mountains Bioregions).
Objective 2: Include within the MSHCP Conservation Area at
least 18 of the known locations on the Santa Rosa
Plateau; in the vicinity of Sage; French Valley; east
of Lake Skinner; and in the San Jacinto, Agua Tibia
and Santa Ana Mountains.
Conservation for this species will be
achieved by inclusion of at least 23,800
acres of suitable Conserved Habitat and
18 known localities within large blocks of
Habitat (on the Santa Rosa Plateau; in the
vicinity of Sage; French Valley; east of
Lake Skinner; and in the San Jacinto, Agua
Tibia and Santa Ana mountains) in the
MSHCP Conservation Area.
Approximately 8,940 acres of (27
percent) the potential Habitat for
Palomar monkeyflower will not be
included in the MSHCP Conservation
Area. Of the 26 known locations (29
occurrences),11 of the mapped
locations (six locations in the San
Jacinto Mountains, one location in the
Santa Ana Mountains, and four
locations in the vicinity of Sage) are
located outside of the MSHCP
Conservation Area.
None 8 Reserve Managers will avoid or minimize adverse effects to
Palomar monkeyflower to the maximum extent practicable.
Reserve Managers will manage known and future occurrences
of this species for trampling and trail maintenance activities
where trails, roads and transmitting equipment are existing or
proposed.
Parish’s brittlescale
(Atriplex parishii)
3 Parish's brittlescale is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to the alkali floodplains of Salt Creek
in association with Willows, Domino and Traver soils.
Parish's brittlescale occurs as three populations within the
upper Salt Creek area west of Hemet. Although no
current populations are known from the lower and middle
segments of the San Jacinto River, or Mystic Lake and
the San Jacinto Wildlife Areas, these areas support
suitable Habitat and historical localities imply that these
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area the
three known populations of the Parish's brittlescale
in the upper Salt Creek drainage west of Hemet.
Objective 3: Surveys for the Parish's brittlescale will be
conducted as part of the project review process for
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
the core locality at Salt Creek and potential
Habitat along the San Jacinto River within
large blocks of Habitat in the MSHCP
Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 1,370 acres (17
percent) of potential Habitat for
Parish's brittlescale will be outside the
MSHCP Conservation Area. The
Winchester Valley locality, if still
extant, will not be conserved in the
MSHCP Conservation Area.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 General Management Measure 4. Ensure Habitat support
functions within the MSHCP Conservation Area by maintaining
and enhancing the floodplain processes of the San Jacinto River
and upper Salt Creek, including intermittent flooding and periodic
pooling. Particular management emphasis will be given to
preventing alteration of hydrology and floodplain dynamics,
farming, fire and fire suppression activities, off-road vehicle use,
grazing and competition from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-130
areas may also be key to the species survival. Records
of this species are also known from Winchester Valley.
The status of this locality is uncertain, however.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for Parish's
brittlescale will be conducted as part of the project review
process for public and private projects within the Criteria
Area where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Parish's brittlescale located as a result of
survey efforts shall be conserved in accordance with
procedures described within Section 6.3.2, MSHCP,
Volume 1.
public and private projects within the Criteria Area
where suitable habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the
MSHCP, Volume 1). Parish's brittlescale located
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2 of the MSHCP, Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Objective 5: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained
within the linkage in order to provide for the
distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change.
Parish’s meadowfoam
(Limnanthes gracilis var.
parishii)
3 Parish's meadowfoam is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for hydrology. Within the Plan Area, this
species is restricted to ephemeral wetlands on the Santa
Rosa Plateau.
Objective 1: Include within the MSHCP Conservation Area at
least one known location on the Santa Rosa
Plateau.
Objective 2: Include within the MSHCP Conservation Area the
watershed of the vernal pool complex on the Santa
Conservation for this species will be
achieved by inclusion of suitable
Conserved Habitat and the core locality
and associated watershed within a large
block of Habitat in the MSHCP
Conservation Area.
No known populations of Parish's
meadowfoam will be outside the
MSHCP Conservation Area. However,
suitable Habitat for this species is
present outside the MSHCP
Conservation Area in ephemeral
None 8 General Management Measure 4. Reserve managers will
maintain the watershed and hydrologic conditions of the known
vernal pool complexes on the Santa Rosa Plateau.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-131
Rosa Plateau in order to maintain hydrologic
conditions.
wetlands and mima mounds in forest
glades and mountain areas. The level
of potential Take in these areas
outside the MSHCP Conservation Area
cannot be determined at this time.
Parry’s spine flower
(Chorizanthe parryi var.
parryi)
2 Parry's spine flower is designated as a Group 2 species
because although it has a patchy distribution within the
Plan Area (Vail Lake, Gilman Hot Springs, Wilson Valley,
Juniper Flats, Rawson Canyon, Reche Canyon, Antelope
Valley, the Santa Rosa Hills, Cherry Valley, City of
Banning, Moreno Valley, near the intersection of Central
Avenue and Indiana Avenue, Gavilan Plateau, El Cerrito,
Quail Valley, Wolf Valley, Aguanga Valley, Diamond Valley
Lake, Valle Vista, Black Mountain, Gavilan Peak, in the
vicinity of Lake Elsinore, City of Riverside, and near
Highway 91 in the vicinity of Home Gardens) this species
has specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to alluvial floodplains and alluvial
chaparral and scrub of Western Riverside County,
specifically the Santa Ana, Agua Tibia (Palomar), San
Bernardino and San Jacinto Mountains.
Within the Plan Area, the distribution of Parry's spine
flower is patchy and poorly understood. The existing
records are not believed to be indicative of the distribution
of this species although the MSHCP Conservation Area
configuration is expected to provide long-term
Conservation of the species. Incidental Take of this
species is not included in this permit until Conservation of
the species in the Plan Area has been demonstrated by
reaching Objective 3.
This species is designated as a Forest Service Sensitive
Species which can be managed at the site specific level.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
Objective 1: Include within the MSHCP Conservation Area
218,630 acres of suitable Habitat (chaparral and
alluvial fan sage scrub between 100 and 1,300 m
in the San Bernardino, Santa Ana, Agua Tibia and
San Jacinto Mountains, the Riverside Lowlands,
Desert Transition and San Jacinto Hills Bioregions).
Objective 2: Include within the MSHCP Conservation Area
twenty (20) occurrences of Parry's spine flower,
including locations throughout the Vail Lake area
and in the vicinity of Lake Mathews, Gavilan Hills,
Antelope Valley, Rawson Canyon, Santa Rosa Hills,
Reche Canyon, Wilson Valley, Juniper Flats,
Gilman Hot Springs Road and Diamond Valley
Lake.
Objective 3: Within the MSHCP Conservation Area, confirm 10
localities (locality in this sense is not smaller than
one quarter section) with at least 1,000 individuals
(unless a smaller population has been
demonstrated to be self-sustaining).
Conservation for this species will be
achieved by inclusion of at least 218,630
acres of suitable Conserved Habitat and
17 known occurrences (at Lake Matthews,
Gavilan Hills, Antelope Valley, Rawson
Canyon, Santa Rosa Hills, Reche Canyon,
Wilson Valley, Juniper Flats, Gilman Hot
Springs Road, Vail Lake, and Diamond
Valley Lake) within large blocks of Habitat
in the MSHCP Conservation Area. In
addition, implementation of Objective 3 for
this species will provide new data to guide
Reserve Assembly, management and
monitoring.
Within the CNDDB, eight of the 19
mapped locations are located outside
of the MSHCP Conservation Area.
These locations occur at Gavilan Peak,
in the vicinity of Lake Elsinore,
Diamond Valley Lake, City of
Riverside, and near Highway 91 in the
vicinity of Home Gardens. Within the
UCR database and herbarium records,
24 of the 40 mapped locations occur
outside the MSHCP Conservation
Area. These locations occur in the
vicinity of Cherry Valley, Banning,
Beaumont, Hemet, Moreno Valley, City
of Riverside, Gavilan Plateau,
Murrieta, Winchester, east of State
Street, and Highgrove. Approximately
127,100 acres of potential Habitat for
Parry's spine flower will be outside the
MSHCP Conservation Area. The City
of Riverside (1903, 1905) and the City
of Banning (1903) records are historic
occurrences and should be verified.
None 8 Reserve Managers will avoid or minimize adverse effects to
Parry's spine flower to the maximum extent practicable.
Particular management emphasis will be given to the potential
for flood control and mining activities.
Payson’s jewelflower
(Caulanthus simulans)
1 Payson's jewelflower is designated as a Group 1 species
because it has a widespread distribution within the
Objective 1: Include within the MSHCP Conservation Area at
least 94,430 acres of suitable Habitat (chaparral,
Conservation for this species will be
achieved by inclusion of at least 94,430
Approximately 46,380 acres of
potential Habitat will not be conserved.
None 8 General Management Measure 1.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-132
southeastern portion of the Plan Area and within suitable
Habitat. Payson's jewelflower is known from Aguanga,
Billy Goat Mountain, Lewis Valley, and Tule Valley.
Potential Habitat for Payson's jewelflower includes
peninsular juniper woodland and scrub, chaparral and
coastal sage scrub between 400 and 2,200 m. This
species is dependent on disturbance (e.g., scoured areas
along stream courses, recently burned areas, etc.).
coastal sage scrub and peninsular juniper
woodland and scrub between 400 and 2,200 m).
acres of suitable Conserved Habitat and
four known localities (Aguanga, Billygoat
Mountain, Lewis Valley, and Tule Valley)
within large blocks of Habitat in the
MSHCP Conservation Area.
Of the six UCR database and UCR
herbarium records for this species in
the southeastern portion of the Plan
Area, one is located outside the
MSHCP Conservation Area in the
vicinity of Aguanga.
peninsular spine flower
(Chorizanthe leptotheca)
2 Peninsular spine flower is designated as a Group 2
species because although it has a patchy distribution
within the Plan Area (Temescal Canyon, Aguanga Valley
[Temecula River Valley], Garner Valley, Gavilan Plateau,
Hemet, Hemet Lake [UCR database], Agua Tibia
Wilderness Area, Kolb Creek at Highway 79, Vail Lake,
Good Hope, Valle Vista and Cahuilla) it has specialized
Habitat requirements. This species is found in open
Habitats, typically on granitic-derived or alluvial surfaces
between 300 and 1,900 m in elevation. At higher
elevations, this species appears to be associated with
chaparral, sage scrub and coniferous forest openings and
at lower elevations it is typically associated with old
formation alluvial benches.
Many of the occurrence data for this species are old, with
seven of the 17 occurrences dating from 1922 to 1967.
Although it is found on USFS lands, peninsular spine
flower is not primarily a Forest Service Species; 27
percent of the potential Habitat for this species is located
in the Criteria Area. Therefore, Incidental Take of this
species is not included in this permit until Conservation of
the species in the Plan Area has been demonstrated by
reaching Objective 2.
Objective 1: Include within the MSHCP Conservation Area
206,010 acres of suitable Habitat (chaparral,
coastal sage scrub, and montane coniferous forest
between 300 and 1,900 m within the Vail Lake
area, the Agua Tibia Wilderness area, the San
Bernardino Mountains, the San Jacinto Mountains
and the Santa Ana Mountains Bioregions).
Objective 2: Within the MSHCP Conservation Area, confirm 10
localities (locality in this sense is not smaller than
one quarter section) with at least 1,000 individuals
(unless a smaller population has been
demonstrated to be self-sustaining).
Conservation for this species will be
achieved by inclusion of at least 206,010
acres of suitable Conserved Habitat and
five occurrences at three known localities
(Aguanga Valley, Kolb Creek, and
Temescal Canyon) within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 2
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Of the 17 UCR database and
herbarium records, 12 occurrences
will not be conserved within the
MSHCP Conservation Area. These
occurrences include the Valle Vista,
Garner Valley (historic, requires
verification), Hemet Lake, Gavilan
Plateau, Bautista Canyon, Reche
Canyon, Hemet, and Temescal
Canyon localities. Of the seven
unmapped locations, three locations
will not be conserved. Those
individuals occurring at Hemet Lake,
Good Hope and Cahuilla are located
outside of the MSHCP Conservation
Area and will not be conserved within
the MSHCP Plan Area. A total of
78,150 acres of potential Habitat for
the peninsular spine flower will be
outside the MSHCP Conservation
Area.
None 8 Reserve Managers will avoid or minimize adverse effects to
peninsular spine flower to the maximum extent practicable.
Particular management emphasis will be given to competition
from non-native plant species.
Plummer’s mariposa lily
(Calochortus plummerae)
2 Plummer's mariposa lily is designated as a Group 2
species because it is restricted to locations within the San
Jacinto Mountains and Foothills and San Bernardino
Mountains, primarily within USFS lands. Within the Plan
Area, Plummer's mariposa lily is restricted to coastal
scrub, chaparral, cismontane woodland, lower montane
coniferous forest and valley and foothill grasslands at
elevations from 90 m to 1,610 m within the San Jacinto
Mountains and Foothills and San Bernardino Mountains
Objective 1: Include within the MSHCP Conservation Area at
least 167,580 acres of suitable Habitat (chaparral,
coastal sage scrub, montane coniferous forest,
and woodland/forest between 90 and 1,610 m
within the San Jacinto Mountains and Foothills and
San Bernardino Mountain Bioregions).
Objective 2: Include within the MSHCP Conservation Area at
least eight of the known occurrences (near Hemet
Conservation for this species will be
achieved by inclusion of at least 167,580
acres of suitable Conserved Habitat and
eight known localities within large blocks
of Habitat in the MSHCP Conservation
Area. In addition, implementation of
Objective 3 for this species will provide
new data to guide Reserve Assembly,
management and monitoring.
Approximately 64,630 acres (28
percent) of potential Habitat for
Plummer's mariposa lily will not be
included in the MSHCP Conservation
Area. Eight of the 17 known records
of Plummer's mariposa lily will not be
conserved. The historic locations near
Banning (1926), two miles south of
Calimesa (1978), in the Badlands
None 8 Reserve Managers will avoid or minimize adverse effects to
Plummer's mariposa lily to the maximum extent practicable.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-133
Bioregions.
This plant is designated as a Forest Service Sensitive
Species. The Assessment indicates that it falls under the
"site specific" category, which means that it is an
organism requiring species-level Conservation action to
ensure its persistence in the Plan Area.
Within the Plan Area, the Plummer's mariposa lily is
restricted to the eastern slopes and foothills of the San
Jacinto and San Bernardino Mountains. The existing
records are not believed to be indicative of the distribution
of this species although the MSHCP Conservation Area
configuration is expected to provide long-term
Conservation of the species. Incidental Take of this
species is not included in this permit until Conservation of
the species in the Plan Area has been demonstrated by
reaching Objective 3.
Lake within Garner Valley within the San Jacinto
Mountains, the Jurupa Hills, Reche Canyon, along
Highway 74 in the San Jacinto Mountains and west
of Oak Glen Conservation Camp within the San
Bernardino Mountains) of Plummer's mariposa lily.
Objective 3: Within the MSHCP Conservation Area, confirm six
localities (locality in this sense is not smaller than
one quarter section) of at least 500 individuals
each (unless a smaller population has been
demonstrated to be self-sustaining).
southwest of Beaumont (1932), along
May Valley Road north of Highway 74
in the San Jacinto Mountains (1958)
and at the head of Banning Canyon
along the San Gorgonio River (1915)
are located outside of the MSHCP
Conservation Area. It cannot be
determined whether the populations
reported from the Santa Ana
Mountains along the border between
Riverside and Orange counties
(Roberts 1997; Roberts 1998) or at
Lake Skinner (Bramlet 2001) are
within or outside of the MSHCP
Conservation Area.
prostrate navarretia
(Navarretia prostrata)
3 Prostrate navarretia is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and requirements for
hydrology. This species occurs within coastal sage
scrub, valley and foothill grassland (alkaline washes) and
vernal pools between 15 and 700m. Only three
occurrences of this species are known from three general
locations within the Plan Area: the USGS 7.5 minute
Perris, Murrieta and Wildomar quadrangles. This species
is also known from the Santa Rosa Plateau.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for prostrate
navarretia will be conducted as part of the project review
process for public and private projects within the Criteria
Area where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Prostrate navarretia located as a result of
survey efforts shall be conserved in accordance with
procedures described within Section 6.3.2, MSHCP,
Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least the one known occurrence of this species on
the Santa Rosa Plateau.
Objective 2: Include within the MSHCP Conservation Area the
watershed of the vernal pool complex on the Santa
Rosa Plateau in order to maintain hydrologic
conditions.
Objective 3: Surveys for prostrate navarretia will be conducted
as part of the project review process for public and
private projects within the Criteria Area where
suitable habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the
MSHCP, Volume I). Prostrate navarretia located as
a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2 of the MSHCP, Volume I.
Conservation for this species will be
achieved by inclusion of suitable
Conserved Habitat and the core locality
and associated watershed within a large
block of habitat in the MSHCP
Conservation Area.
No known populations of prostrate
navarretia will be outside the MSHCP
Conservation Area. However, suitable
habitat for this species is present
outside the MSHCP Conservation Area
in ephemeral wetlands and mima
mounds in forest glades and mountain
areas. The level of potential Take in
these areas outside the MSHCP
Conservation Area cannot be
determined at this time.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 General Management Measure 4.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-134
prostrate spine flower
(Chorizanthe
procumbens)
2 Prostrate spine flower is designated as a Group 2 species
because although this species has a fairly scattered
distribution (Santa Ana Mountains, north slope of the
Palomar Mountains, the Santa Rosa Plateau, Beaumont,
French Valley, Winchester, the vicinity of Lake Elsinore,
Moreno Valley, the Sedco Hills and the vicinity of Anza),
the known occurrences are concentrated within the Santa
Ana Mountains or along the north slope of the Palomar
Mountains, primarily within U.S. Forest Service Lands.
The Dorland Mountain population on the north slope of
the Palomar Mountains in the Agua Tibia Wilderness Area
is the only known core location of the species. Within the
Plan Area, prostrate spine flower is found in sandy soil,
often in association with sandy barrens and sandy
openings in chamise chaparral, coastal sage scrub, and
occasionally grasslands below 800 m within the Agua
Tibia and Santa Ana Mountains Bioregions. Most
populations are concentrated in the Santa Ana Mountains
or along the north slope of the Palomar Mountains
(Reveal and Hardham 1989; Boyd, et al. 1992; Boyd and
Banks 1995). The Lake Elsinore location probably
represents a locality in the Santa Ana Mountains. The
Beaumont, French Valley, Moreno Valley and
Meadowbrook records appear to be outside of the known
range of this species and are questionable.
Objective 1: Include within the MSHCP Conservation Area at
least 64,000 acres of suitable Habitat (chaparral,
grassland and coastal sage scrub below 800 m
within the Agua Tibia Mountains and Santa Ana
Mountains Bioregions).
Objective 2: Include within the MSHCP Conservation Area at
least 14 of the known locations (in the Santa Ana
Mountains, in the Agua Tibia Mountains including
the Core Area at Dorland Mountain, west of
Beaumont, and the vicinity of French Valley).
Conservation for this species will be
achieved by inclusion of at least 64,000
acres of suitable Conserved Habitat and
14 known localities within large blocks of
Habitat in the MSHCP Conservation Area.
About 31,590 acres (33 percent) of
potential Habitat for the prostrate spine
flower would be outside the MSHCP
Conservation Area. Seven of the
mapped locations (including Moreno
Valley, Meadowbrook, Lake Elsinore,
Murrieta, two localities along
Temecula Creek, and the foothills of
the Santa Ana Mountains) are located
outside of the MSHCP Conservation
Area; however, several of these
occurrences are suspect and should
be verified.
None 8 Reserve Managers will avoid or minimize adverse effects to
prostrate spine flower to the maximum extent practicable.
Reserve Managers will manage known and future occurrences
of this species for competition with non-native grasses.
Rainbow manzanita
(Arctostaphylos
rainbowensis)
2 Rainbow manzanita is designated as a Group 2 species
because of its specialized Habitat and soils requirements
and scattered distribution within the southern portion of
the Plan Area. This species is restricted to ultramafic
southern mixed chaparral, principally on gabbro soils or
related soils rich in ferro-magnesian minerals. Although
it has a fairly scattered distribution within the Plan Area
(San Mateo Canyon Wilderness, Gavilan Mountain, Santa
Margarita Ecological Reserve, Santa Rosa Plateau, and
the Temecula, Margarita Peak and Pechanga areas), the
Santa Rosa Plateau is considered to be the Core Area.
The distribution of Rainbow manzanita is fairly scattered
but appears to be restricted to the eastern slopes of the
Santa Ana Mountains and the northern slopes of the Agua
Tibia Mountains, and therefore, the MSHCP Conservation
Area configuration is expected to provide long-term
Objective 1: Include within the MSHCP Conservation Area at
least 37,260 acres of suitable Habitat (chaparral
between 300 and 600 m within the Agua Tibia
Wilderness Area, the San Mateo Wilderness Area
and the Agua Tibia Mountains, Santa Ana
Mountains and Riverside Lowlands Bioregions).
Objective 2: Include within the MSHCP Conservation Area the
15 known localities of Rainbow manzanita: San
Mateo Canyon Wilderness, Gavilan Mountain,
Santa Margarita Ecological MSHCP Conservation
Area, Santa Rosa Plateau and the Temecula,
Wildomar, Margarita Peak and Pechanga areas.
Objective 3: Within the MSHCP Conservation Area, confirm 10
localities (locality in this sense is not smaller than
one quarter section) with more than 50 individuals
Conservation for this species will be
achieved by inclusion of at least 37,260
acres of suitable Conserved Habitat and
15 known localities within large blocks of
Habitat in the Santa Ana Mountains, the
Agua Tibia Mountains and the vicinity of
the Santa Rosa Plateau within the MSHCP
Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
All of the mapped Rainbow manzanita
locations will be conserved (including
the core Habitat area) within the
MSHCP Conservation Area with the
exception of the Temecula and
Pechanga localities. A total of 29,920
acres (45 percent) of potential Habitat
for Rainbow manzanita will be outside
the MSHCP Conservation Area. The
Temecula locality is an isolated
location in an existing urbanized area
and this area is not proposed to be
conserved as part of the overall
interconnected MSHCP Conservation
Area.
None 8 Reserve Managers will avoid or minimize adverse effects to
Rainbow manzanita to the maximum extent practicable. Reserve
Managers will manage known and future occurrences of this
species with regard to maintaining the natural fire regime,
farming activities and potential insect infestation.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-135
Conservation of the species. However, due to the
patchiness of the existing records, Incidental Take of this
species is not included in this permit until Conservation of
the species in the Plan Area has been demonstrated by
reaching Objective 3.
This species is designated as a Forest Service Sensitive
Species which can be managed at the site specific level.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
each (unless a smaller population has been
demonstrated to be self-sustaining).
round-leaved filaree
(Erodium macrophyllum)
3 Round-leaved filaree is designated as a Group 3 species
because of its specialized Habitat and soils requirements
and somewhat limited distribution (from the Gavilan Hills
southeast to the foothills of the Agua Tibia Mountains)
within the Plan Area. This species is restricted to open
cismontane woodland and valley and foothill grassland on
clay soils between 15 and 1200 m.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for
round-leaved filaree will be conducted as part of the
project review process for public and private projects
within the Criteria Area where suitable Habitat is present
(see Criteria Area Species Survey Area Map, Figure 6-2 of
the MSHCP, Volume I). Round-leaved filaree located as
a result of survey efforts shall be conserved in
accordance with procedures described within Section
6.3.2, MSHCP, Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least 37,663 acres of suitable Habitat (grasslands
and cismontane woodlands between 15 and 1,200
m within the Santa Ana Mountains and the
Riverside Lowlands Bioregions).
Objective 2: Include within the MSHCP Conservation Area eight
out of the 10 known localities of round-leaved
filaree: four occurrences in the Gavilan Hills region,
one at Lake Mathews, one along Temescal Wash
near Lee Lake, one at Diamond Valley Lake and
one in the foothills of the Agua Tibia Mountains.
Objective 3: Surveys for round-leaved filaree will be conducted
as part of the project review process for public and
private projects within the Criteria Area where
suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the
MSHCP, Volume I). Round-leaved filaree located
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2 of the MSHCP, Volume I.
Conservation for this species will be
achieved by inclusion of at least 37,663
acres of suitable Conserved Habitat and
eight known localities within large blocks
of Habitat in the Gavilan Hills, along
Temescal Wash, at Lake Mathews,
Diamond Valley Lake and the foothills of
the Agua Tibia Mountains within the
MSHCP Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Two of the mapped round-leaved
filaree locations will not be conserved
within the MSHCP Conservation Area:
one in French Valley and one in the
Gavilan Hills. A total of 215,108 acres
(85%) of potential Habitat for
round-leaved filaree will be outside the
MSHCP Conservation Area. The
Murrieta locality is an isolated location
in an existing urbanized area and this
area is not proposed to be included in
MSHCP Conservation Area.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 Reserve Managers will manage known and future occurrences
of this species with regard to non-native plant species.
San Diego ambrosia
(Ambrosia pumila)
3 San Diego ambrosia is designated as a Group 3 species
because of its limited geographic distribution, and
specialized Habitat and management requirements. Only
three populations are known from Riverside County; all
are located in the Riverside Lowlands Bioregion. The two
largest populations occur in the vicinity of Alberhill. The
first occurs both north and south of Nichols Road, west
Objective 1: Include within the MSHCP Conservation Area at
least 21,800 acres of suitable Habitat (grassland
and playa/vernal pools between 200 and 500 m
within the Riverside Lowlands Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least two of the three known locations of this
Conservation for this species will be
achieved by inclusion of at least 21,800
acres of suitable Conserved Habitat and
two Core localities within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
Approximately 52,010 (70 percent)
acres of potential Habitat in the Plan
Area will not be conserved, however,
of this 8,940 acres will be subject to
focused surveys for San Diego
ambrosia and newly identified
populations conserved in accordance
Yes, see Section
6.1.3 (Protection
of Narrow
Endemic Plant
Species)
8 Reserve Managers will manage this species for competition from
non-native species competition and trampling.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-136
of Interstate 15 and Alberhill Creek; the second is located
east of Lake Street, immediately south of Interstate 15.
A third, and smaller, population is found at Skunk Hollow,
south of Tucalota Creek and east of San Diego Aqueduct
1, near Murietta Hot Springs. At the Alberhill and Nichols
Road sites, San Diego ambrosia is found in ruderal
Habitat and open non-native grassland on Garretson
gravelly fine sandy loam soil. Both populations are within
floodplain areas associated with Alberhill Creek. At Skunk
Hollow, however, San Diego ambrosia occurs in
non-native grassland a short distance west of the Skunk
Hollow vernal pool. Here, the underlying soil is Las Posas
loam.
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for San Diego ambrosia will
be conducted as part of the project review process for
public and private projects within the Narrow Endemic
Plant Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species Survey Area
Map, Figure 6-1 of the MSHCP, Volume I). San Diego
ambrosia located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.1.3, MSHCP, Volume 1.
species: Alberhill Creek at Nichols Road and Skunk
Hollow.
Objective 3: Surveys for the San Diego ambrosia will be
conducted as part of the project review process for
public and private projects within the Narrow
Endemic Plant Species survey area where suitable
Habitat is present (see Narrow Endemic Plant
Species Survey Area Map, Figure 6-1 of the
MSHCP, Volume I). San Diego ambrosia located as
a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.1.3 of the MSHCP, Volume 1.
guide Reserve Assembly, management
and monitoring. The third Core location
(east of Lake Street in the City of Lake
Elsinore) will be conserved in accordance
with the Narrow Endemics Policy (Section
6.1.3).
with the Narrow Endemics policy.
Three records from the University of
California, Riverside (UCR) GIS
database will not be conserved (near
Pechanga, south of Lake Mathews and
near Murrieta); however, these
occurrences are suspect and should
be verified.
San Diego button-celery
(Eryngium aristulatum var.
parishii)
3 San Diego button-celery is designated as a Group 3
species because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for hydrology. Within the Plan Area, this
species is restricted to vernal pools on the Santa Rosa
Plateau.
Objective 1: Include within the MSHCP Conservation Area at
least four known locations on the Santa Rosa
Plateau.
Objective 2: Include within the MSHCP Conservation Area the
watershed of the known locations on the Santa
Rosa Plateau in order to maintain existing
hydrologic conditions.
Conservation for this species will be
achieved by inclusion of suitable
Conserved Habitat (vernal pools on the
Santa Rosa Plateau) and four known
localities and associated watershed in the
MSHCP Conservation Area.
No known populations of San Diego
button-celery will be outside the
MSHCP Conservation Area. Although
no Take of known occurrences of
button celery will occur as part of the
MSHCP, certain areas located outside
the MSHCP Conservation Area may
contain vernal pool Habitat that could
support this species. This Habitat
type is not mapped as part of MSHCP
database and therefore cannot be
quantified as potential Habitat loss at
this time.
None 8 General Management Measure 4. Reserve Managers will
maintain the watershed and hydrologic conditions of the known
vernal pool complexes on the Santa Rosa Plateau.
San Jacinto Mountains
bedstraw
(Galium angustifolium
ssp. jacinticum)
3 San Jacinto Mountains bedstraw is designated as a Group
3 species because of its restriction to the San Jacinto
Mountains and its need for site specific management and
monitoring. Within the Plan Area, San Jacinto Mountains
bedstraw is restricted to lower montane mixed forest and
Objective 1: Include within the MSHCP Conservation Area at
least 12,125 acres of suitable Habitat (montane
coniferous forest between 1,280 to 1,980 m within
the Narrow Edemic survey area of the San Jacinto
Mountains Bioregion).
Conservation for this species will be
achieved by inclusion of at least 12,125
acres of suitable Conserved Habitat and
eight known localities within large blocks
of Habitat in the MSHCP Conservation
Approximately 8,545 acres (41
percent) of potential Habitat for San
Jacinto Mountains bedstraw will not
be conserved. One of the localities is
within private in-holdings within the
Yes, see Section
6.1.3 (Protection
of Narrow
Endemic Plant
Species)
8 Reserve Managers will avoid or minimize adverse effects to San
Jacinto Mountains bedstraw to the maximum extent practicable.
Reserve Managers will manage this species for potential Habitat
loss and possible genetic swamping.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-137
coniferous forest at elevations of 1,280 m to 1,980 m
within the San Jacinto Mountains, primarily within USFS
lands. San Jacinto Mountains bedstraw is endemic to the
San Jacinto Mountains and has been reported southeast
of Hemet, Cherry Valley, Lake Fulmor, Dark Canyon and
the Black Mountain area.
San Jacinto Mountain bedstraw is designated as a Forest
Service Sensitive Species. Forest Service Sensitive
Species are protected through the implementation of
Forest Plans and the biological evaluation (BE) process,
which considers the potential effects of Forest Service
activities on these species.
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for San Jacinto Mountain
bedstraw will be conducted as part of the project review
process for public and private projects within the Narrow
Endemic Plant Species survey area where suitable Habitat
is present (see Narrow Endemic Plant Species Survey
Area Map, Figure 6-1 of the MSHCP, Volume I). San
Jacinto Mountain bedstraw located as a result of survey
efforts shall be conserved in accordance with procedures
described within Section 6.1.3, MSHCP, Volume 1.
Objective 2: Include within the MSHCP Conservation Area at
least eight of the known locations of this species:
Lake Fulmor, Dark Canyon and the Black Mountain
area.
Objective 3: Surveys for this species will be conducted as part
of the project review process for public and private
projects within the Narrow Endemic Plant Species
survey area where suitable Habitat is present (see
Narrow Endemic Plant Species Survey Area Map,
Figure 6-1 of the MSHCP, Volume I). San Jacinto
Mountain bedstraw located as a result of survey
efforts shall be conserved in accordance with
procedures described within Section 6.1.3,
MSHCP, Volume 1.
Area. In addition, implementation of
Objective 3 for this species will provide
new data to guide Reserve Assembly,
management and monitoring.
San Jacinto Mountains and will not be
conserved. It is important to note,
however, that this potential Habitat
and the mapped location are included
within the Narrow Endemic Plant
Species survey area and Conservation
of this potential Habitat and known
location will be addressed in
accordance with the procedures
presented in the Narrow Endemic
Plant Species policy described in
Section 6.1.3 of the MSHCP, Volume
I.
San Jacinto Valley
crownscale
(Atriplex coronata var.
notatior)
3 San Jacinto Valley crownscale is designated as a Group
3 species because of its limited geographic distribution
and specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to the alkali floodplains of the San
Jacinto River, Mystic Lake and Salt Creek in association
with Willows, Domino and Traver soils. San Jacinto
Valley crownscale occurs as 11 loosely-defined
populations (comprising three Core Areas) that are
primarily associated with Mystic Lake, the San Jacinto
River and Salt Creek tributary drainages. One additional
population is known to occur on Willows soils at Alberhill
Creek near Lake Elsinore.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for San
Jacinto Valley crownscale will be conducted as part of the
project review process for public and private projects
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area the
Alberhill Creek locality as well as the three Core
Areas, located along the San Jacinto River from the
vicinity of Mystic Lake southwest to the vicinity of
Perris and in the upper Salt Creek drainage west of
Hemet.
Objective 3: Surveys for the San Jacinto Valley crownscale will
be conducted as part of the project review process
for public and private projects within the Criteria
Area where suitable habitat is present (see Criteria
Area Species Survey Area Map, Figure 6-2 of the
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
the locality at Alberhill Creek near Lake
Elsinore and the three core localities
(Mystic Lake, the San Jacinto River and
the upper Salt Creek drainage) within large
blocks of Habitat in the MSHCP
Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring. Implementation of Objectives
4 and 5 for this species will maintain
alluvial processes (floodplain hydrology
and flooding) upon which this species
depends.
Approximately 1,370 acres (17
percent) of potential Habitat for San
Jacinto Valley crownscale will be
outside the MSHCP Conservation
Area.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and enhancing the floodplain
processes of the San Jacinto River, Mystic Lake and upper Salt
Creek, including intermittent flooding and periodic pooling.
Particular management emphasis will be given to preventing
alteration of hydrology and floodplain dynamics, farming, fire and
fire suppression activities, off-road vehicle use, and competition
from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-138
within the Criteria Area where suitable Habitat is present
(see Criteria Area Species Survey Area Map, Figure 6-2 of
the MSHCP, Volume I). San Jacinto Valley crownscale
located as a result of survey efforts shall be conserved in
accordance with procedures described within Section
6.3.2, MSHCP, Volume I.
MSHCP, Volume 1). San Jacinto Valley
crownscale located as a result of survey efforts
shall be conserved in accordance with procedures
described within Section 6.3.2 of the MSHCP,
Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Objective 5: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained in
order to provide for the distribution of the species
to shift over time as hydrologic conditions and
seed bank sources change.
San Miguel savory
(Satureja chandleri)
3 San Miguel savory is designated as a Group 3 species
because of its narrowly-defined geographic distribution
and its specialized Habitat and soils requirements. This
species is primarily restricted to rocky, gabbroic and
metavolcanic substrates in coastal sage scrub, chaparral,
cismontane woodland, riparian woodland, and valley and
foothill grasslands (between 120 and 1,005 m). The
majority of the populations/individuals are associated with
the Santa Rosa Plateau and the Santa Ana Mountains.
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for San Miguel savory will be
conducted as part of the project review process for public
Objective 1: Include within the MSHCP Conservation Area at
least 201,450 acres of suitable Habitat (chaparral,
coastal sage scrub, cismontane forest, riparian
woodland, and valley and foothill grassland
between 120 and 1,005 m).
Objective 2: Include within the MSHCP Conservation Area at
least seven of the known locations of San Miguel
savory on the Santa Rosa Plateau; in the vicinity of
Tenaja guard station and three miles south of
Murrieta near De Luz Road in the Santa Ana
Mountains; and three miles southwest of Murrieta
near Warner's Ranch.
Conservation for this species will be
achieved by inclusion of at least 201,450
acres of suitable Conserved Habitat and
seven known localities (on the Santa Rosa
Plateau and in the Santa Ana Mountains)
within large blocks of Habitat in the
MSHCP Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 224,550 (53 percent) of
potential Habitat for San Miguel savory
will be outside the MSHCP
Conservation Area, however, of this
27,760 acres will be subject to
focused surveys for San Miguel
savory and newly identif ied
populations conserved in accordance
with the Narrow Endemics policy.
Within the CNDDB, four of the five
mapped locations will not be
conserved within the MSHCP
Conservat ion Area. These
Yes, see Section
6.1.3 (Protection
of Narrow
Endemic Plant
Species)
8 Reserve Managers will avoid or minimize adverse effects to San
Jacinto Mountains bedstraw to the maximum extent practicable.
Reserve Managers will manage the known and future
occurrences of this species for recreational activities.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-139
and private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat is present
(see Narrow Endemic Plant Species Survey Area Map,
Figure 6-1 of the MSHCP, Volume I). San Miguel savory
located as a result of survey efforts shall be conserved in
accordance with procedures described within Section
6.1.3, MSHCP, Volume I.
This species is designated as a Forest Service Sensitive
Species which can be managed at the site specific level.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
Objective 3: Surveys for San Miguel savory will be conducted
as part of the project review process for public and
private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat and
gabbro soils are present (see Narrow Endemic
Plant Species Survey Area Map, Figure 6-1 of the
MSHCP, Volume I). San Miguel savory located as
a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.1.3, MSHCP, Volume 1.
occurrences are all in the vicinity of
the Santa Rosa Plateau. It should be
noted that the Narrow Endemic Plant
Species policy will apply to locations
outside the MSHCP Conservation
Area.
Santa Ana River
woollystar (Eriastrum
densifolium ssp.
sanctorum)
3 Santa Ana River woolly-star is designated as a Group 3
species because of its narrowly restricted geographic
distribution, specialized Habitat requirements and
management requirements for floodplain processes. This
species is restricted to open washes and
early-successional alluvial fan scrub on open slopes
above main watercourses on fluvial deposits where
flooding and scouring occur at a frequency that allows the
persistence of open shrublands. The Santa Ana River
woolly-star has a narrowly restricted distribution within
the Plan Area (Santa Ana River) and thus requires
species-specific monitoring and management in order to
ensure species persistence within the Plan Area.
Objective 1: Include within the MSHCP Conservation Area at
least 2,340 acres of suitable Habitat (Riversidean
alluvial fan sage scrub between 150 and 580 m in
the Riverside Lowlands Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least three occurrences of this species along the
Santa Ana River near the San Bernardino County
border.
Objective 3: Include within the MSHCP Conservation Area the
floodplain along the Santa Ana River. Alluvial
processes will be maintained in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change.
Conservation for this species will be
achieved by inclusion of at least 2,340
acres of suitable Conserved Habitat and
the known extant localities (four
occurrences) with connectivity along the
Santa Ana River in the MSHCP
Conservation Area. In addition,
implementation of Objective 3 for this
species will maintain alluvial processes
(floodplain hydrology and flooding) upon
which this species depends.
Approximately 910 acres of potential
Habitat in the Plan Area will not be
conserved. The occurrence mapped
at Limonite Avenue dates from 1986
and is likely not extant; this locality will
not be conserved. No further Take is
given for this species.
None 8 Reserve Managers will manage the floodplain along the Santa
Ana River in order to maintain alluvial processes that provide for
the distribution of the species to shift over time as hydrologic
conditions and seed bank sources change. Specifically, manage
the natural river bottom and banks, with a 500 foot buffer zone
(e.g., alluvial terraces, riparian vegetation) of the Santa Ana River
with a minimum of 0.5 mile upstream of the confluence of each
of the tributaries to the Santa Ana River between the
Riverside/San Bernardino County line and the Riverside/Orange
County line. Tributaries include Sunnyslope Creek, Mount
Rubidoux Creek, Arroyo Tequesquite, Anza Park Drain, Evans
Lake Drain, Temescal Creek and Aliso Creek. Reserve Managers
will maintain or improve existing water quality and flow levels in
the Santa Ana River by the use and enforcement of current or
better water quality standards and at a minimum maintenance of
existing flows.
shaggy-haired alumroot
(Heuchera hirsutissima)
2 Shaggy-haired alumroot is designated as a Group 2
species. This species is restricted to the San Jacinto and
Santa Rosa Mountains, primarily within USFS and State
Park lands. Within the Plan Area, shaggy-haired alumroot
is known from rocky areas and granite crevices within
upper-montane coniferous forest and subalpine
coniferous forest at elevations of 1,815 m to 3,500 m
within the San Bernardino National Forest and San Jacinto
State Park in the San Jacinto Bioregion. Seventy-eight
percent of the potential Habitat for this plant is contained
within existing Public/Quasi-Public Lands. Most of the
known occurrences of this species occur east of the Plan
Area. Only two localities of shaggy-haired alumroot are
Objective 1: Include within the MSHCP Conservation Area at
least 7,760 acres of suitable Habitat (montane
coniferous forest between 1,815 and 3,500 m in
the San Jacinto Mountains Bioregion).
Objective 2: Include within the MSHCP Conservation Area the
two known localities of this plant in the San Jacinto
Mountains: one locality lies on the western slopes
of the San Jacinto Mountains above the San
Jacinto River and the other locality is in a gully
behind Tahquitz Rock.
Conservation for this species will be
achieved by inclusion of at least 7,760
acres of suitable Conserved Habitat and
two known localities (three occurrences)
within Public/Quasi-Public Lands within
large blocks of Habitat in the MSHCP
Conservation Area.
Approximately 2,210 acres (22
percent) of potential Habitat for
shaggy-haired alumroot will not be
conserved.
None 8 Reserve Managers will avoid or minimize adverse effects to
shaggy-haired alum root to the maximum extent practicable.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-140
known within the Plan Area, both within the San Jacinto
Mountains. One locality lies on the western slopes of the
San Jacinto Mountains, above the San Jacinto River (UCR
database). The other locality is in a gully behind Tahquitz
Rock (CNDDB 2000).
This plant is designated as a Forest Service Sensitive
Species. The Assessment indicates that it falls under the
"minimal influence" category, which means that it is
affected minimally by public land management actions.
Forest Service Sensitive Species are protected through
the implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
slender-horned spine
flower (Dodecahema
leptoceras)
3 Slender-horned spine flower is designated as a Group 3
species because of its specialized Habitat requirements
and limited distribution. This species is dependent on
mature alluvial scrub that is maintained by periodic
flooding and sediment transport and only occurs along
Arroyo Seco and Kolb Creeks, Temescal Wash at Indian
Creek, central Bautista Creek, Vail Lake and the upper San
Jacinto River near Valle Vista and Hemet.
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for slender-horned spine
flower will be conducted as part of the project review
process for public and private projects within the Narrow
Endemic Plant Species survey area where suitable Habitat
is present (see Narrow Endemic Plant Species Survey
Area Map, Figure 6-1 of the MSHCP, Volume I).
Slender-horned spine flower located as a result of survey
efforts shall be conserved in accordance with procedures
described within Section 6.1.3, MSHCP, Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least 8,350 acres of suitable Habitat (chaparral and
Riversidean alluvial fan sage scrub between 200
and 700 m in the Vail Lake Narrow Endemic
Species survey area and Agua Tibia Mountains
Bioregion).
Objective 2: Include within the MSHCP Conservation Area at
least 11 of the known locations of this species,
including Temescal Canyon, Bautista Canyon,
upper San Jacinto River, Agua Tibia Wilderness
Area, Alberhill, Alberhill Creek east of Lake
Elsinore, Railroad Canyon, Vail Lake, Kolb Creek,
and east of State Street south of Hemet.
Objective 3: Surveys for slender-horned spine flower will be
conducted as part of the project review process for
public and private projects within the Narrow
Endemic Plant Species survey area where suitable
Habitat is present (see Narrow Endemic Plant
Species Survey Area Map, Figure 6-1 of the
MSHCP, Volume I). Slender-horned spine flower
located as a result of survey efforts shall be
conserved in accordance with procedures
described within Section 6.1.3, MSHCP, Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along Arroyo Seco and Kolb Creeks,
Temescal Wash at Indian Creek, central Bautista
Conservation for this species will be
achieved by inclusion of at least 8,350
acres of suitable Conserved Habitat and
11 localities (15 occurrences) within large
blocks of Habitat (Temescal Canyon,
Bautista Canyon, upper San Jacinto River,
Agua Tibia Wilderness Area, and Vail
Lake) in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring, and implementation of
Objective 4 for this species will maintain
alluvial processes (floodplain hydrology
and flooding) upon which this species
depends.
Approximately 2,950 acres of potential
Habitat for the slender-horned spine
flower in the Plan Area will not be
conserved. However, approximately
2,290 acres outside of the MSHCP
Conservation Area will be subject to
focused surveys for slender-horned
spine flower and newly identified
populations conserved in accordance
with the Narrow Endemics policy. Of
the 27 UCR database and herbarium
records, 12 of the occurrences will not
be conserved (Gavilan Plateau, north
of Meadowbrook, Temescal Canyon,
Lake Elsinore, Valle Vista, Agua Tibia
Mountains, El Cariso, and east of State
Street south of Hemet). It should be
noted that these localities will be
conserved in accordance with the
Narrow Endemics policy and the
Riparian/ Riverine Areas and Vernal
Pools Policy will apply to potential
Habitat areas for this species outside
the MSHCP Conservation Area.
Yes, see Section
6.1.3 (Protection
of Narrow
Endemic Plant
Species)
8 Reserve Managers will ensure Habitat support functions within
the MSHCP Conservation Area by maintaining and enhancing
fluvial processes of Arroyo Seco and Kolb Creeks, Temescal
Wash at Indian Creek, central Bautista Creek and the San Jacinto
River. Particular management emphasis will be given to flood
control measures, sand and gravel mining, trampling, off-road
vehicle use, and competition from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-141
Creek and the San Jacinto River upstream from
Valle Vista. Alluvial processes will be maintained
in order to provide for the distribution of the
species to shift over time as hydrologic conditions
and seed bank sources change.
small-flowered microseris
(Microseris douglasii var.
platycarpha)
2 Small-flowered microseris is designated as a Group 2
species because it is known from several Core Areas and
is restricted to particular soils series within the Plan Area.
Although the species has a scattered distribution,
locations appear to be concentrated in the western
portion of the Plan Area. Small-flowered microseris is
associated with perennial grasslands on clay lenses and
on the periphery of vernal pools, typically below 1000 m.
Within the Plan Area, populations are known from the
Riverside Lowlands and Santa Ana Mountains Bioregions,
with a cluster of populations near Vail Lake in the San
Jacinto Foothills Bioregion.
Most (eight of the 12) of the records for this species are
inside of the proposed MSHCP Conservation Area and the
MSHCP Conservation Area configuration is expected to
provide long-term Conservation of the species. However,
the existing records are not believed to be indicative of the
distribution of this species. Incidental Take of this
species is not included in this permit until Conservation of
the species in the Plan Area has been demonstrated by
reaching Objective 3.
Objective 1: Include within the MSHCP Conservation Area at
least 45,290 acres of suitable Habitat (grassland
and playas and vernal pools below 1000 m within
the Riverside Lowlands, San Jacinto Foothills and
Santa Ana Mountains Bioregions), on at least
2,280 acres of clay soils (190 acres of Altamont,
450 acres of Auld, 600 acres of Bosanko, 100
acres of Claypit and 940 acres of Porterville soils).
Objective 2: Include within the MSHCP Conservation Area at
least eight of the known locations at Lake
Matthews, in the Cleveland National Forest, at Lake
Skinner and at Vail Lake.
Objective 3: Within the MSHCP Conservation Area, confirm 10
localities (locality in this sense is not smaller than
one quarter section) with at least 1,000 individuals
(unless a smaller population has been
demonstrated to be self-sustaining).
Conservation for this species will be
achieved by inclusion of at least 45,290
acres of suitable Conserved Habitat and
23 known occurrences at Lake Mathews,
Santa Ana Mountains in the Cleveland
National Forest, Lake Skinner, Temescal
Canyon, Vail Lake, Paloma Valley, French
Valley, Cottonwood Canyon and Alberhill
within large blocks of Habitat in the
MSHCP Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 94,380 acres of
potential Habitat for small-flowered
microseris and seven of the
occurrences of the species would not
be conserved in the MSHCP
Conservation Area, including those at
Paloma Valley, Temescal Canyon, in
the Santa Ana Mountains, the Gavilan
Hills and Alberhill.
None 8 Unknown.
small-flowered morning-
glory
(Convolvulus simulans)
2 Small-flowered morning-glory is designated as a Group 2
species because the species is known from several Core
Areas and is restricted to particular soils series within the
Plan Area. Although the species has a scattered
distribution ( Lake Mathews, Alberhill, Santa Rosa
Plateau, Murrieta Hot Springs, Vail Lake, Lake Skinner,
East Hemet), populations appear to be concentrated in the
vicinity of Vail Lake. Small-flowered morning-glory is
associated with open sage scrub and grasslands in the
Riverside Lowlands, San Jacinto Foothills, and Santa Ana
Mountains Bioregions where they occur on clay and
cobbly clay soils below 1,000 feet (~325m) elevation.
Objective 1: Include within the MSHCP Conservation Area at
least 100,690 acres of suitable Habitat (coastal
sage scrub and grasslands below 325 m in the
Riverside Lowlands, San Jacinto Foothills, and
Santa Ana Mountains Bioregions), on at least
2,290 acres of clay soils (190 acres of Altamont,
450 acres of Auld, 600 acres of Bosanko, 100
acres of Claypit and 950 acres of Porterville soils).
Objective 2: Include within the MSHCP Conservation Area at
least eight of the known localities (including Vail
Lake, Lake Skinner, Lake Mathews, Temescal
Canyon, Alberhill, Santa Rosa Plateau, Santa Ana
Mountains, and Skunk Hollow) of this species.
Conservation for this species will be
achieved by inclusion of at least 100,690
acres of suitable Conserved Habitat and
13 known localities (33 occurrences)
within large blocks of Habitat in the
MSHCP Conservation Area.
Approximately 143,210 acres of
potential Habitat for small-flowered
morning-glory will not be conserved in
the MSHCP Conservation Area.
Several localities (nine occurrences)
will not be conserved within the
MSHCP Conservation Area: isolated
populations at Alberhill, Homeland,
near Hemet, Paloma Valley and Sun
City.
None 8 Unknown.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-142
smooth tarplant
(Centromadia pungens)
(formerly known as
Hemizonia pungens ssp.
laevis)
3 Smooth tarplant is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. Although this
species has a scattered distribution (Salt Creek, along the
San Jacinto River, Temecula Creek, Tres Cerrritos
northwest of Hemet, Sycamore Canyon Park, Moreno
Valley, Lake Skinner, Clinton Keith Road east of Deer
Creek Development, and Potrero Creek near Beaumont),
this species is primarily restricted to the alkali floodplains
of the San Jacinto River, Mystic Lake and Salt Creek in
association with Willows, Domino and Traver soils.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for smooth
tarplant will be conducted as part of the project review
process for public and private projects within the Criteria
Area where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Smooth tarplant located as a result of survey
efforts shall be conserved in accordance with procedures
described within Section 6.3.2, MSHCP, Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable Habitat (grassland
and playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area at
least 27 of the known occurrences of this species
at Antelope Valley; Temescal Canyon; Lake
Elsinore; Murrieta Creek; French Valley; Lakeview
Mountains; Lake Skinner; Diamond Valley Lake;
Sycamore Canyon Park; Alberhill Creek; Lake
Mathews; the Santa Ana River; and the core
locations at the San Jacinto Wildlife Area, the
middle segment of the San Jacinto River and upper
Salt Creek.
Objective 3: Surveys for the smooth tarplant will be conducted
as part of the project review process for public and
private projects within the Criteria Area where
suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the
MSHCP, Volume I). Smooth tarplant located as a
result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.3.2 of the MSHCP, Volume I.
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
the core localities (the San Jacinto Wildlife
Area, the middle segment of the San
Jacinto River and Salt Creek) within large
blocks of Habitat in the MSHCP
Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 1,370 acres (17
percent) of potential habitat for
smooth tarplant will be outside the
MSHCP Conserva t ion Area .
Thirty-nine of the occurrences in the
UCR database and herbarium
collections will not be conserved in the
MSHCP Conserva t ion Area .
Twenty-five of the occurrences in the
CNDDB database will not be
conserved in the MSHCP Conservation
Area. Localities not conserved include
the occurrences in Hemet, Tres
Cerritos, Murrieta, Moreno Valley,
Mead Valley, south of Lake Elsinore,
Glen Ivy, the City of San Jacinto, the
upper reaches of the San Jacinto River
and the four occurrences previously
impacted at Diamond Valley Lake.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 Reserve Managers will ensure Habitat support functions within
the MSHCP Conservation Area by maintaining and enhancing the
floodplain processes of the San Jacinto River, Mystic Lake and
upper Salt Creek, including intermittent flooding and periodic
pooling. Particular management emphasis will be given to
preventing alteration of hydrology and floodplain dynamics,
farming, fire and fire suppression activities, off-road vehicle use,
and competition from non-native plant species.
spreading navarretia
(Navarretia fossalis)
3 Spreading navarretia is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to the alkali floodplains of the San
Jacinto River, Mystic Lake and Salt Creek in association
with Willows, Domino and Traver soils. Eleven of the 14
populations are found in the alkali soils of three population
complexes within the Upper Salt Creek drainage west of
Hemet, and along the San Jacinto River extending from
just west of Mystic Lake south to the Perris Valley Airport.
Spreading navarretia has been reported on the Santa
Rosa Plateau and at Skunk Hollow.
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area at
least 13 of the known locations of spreading
naverretia at the Skunk Hollow, the Santa Rosa
Plateau and core locations: the San Jacinto Wildlife
Area, floodplains of the San Jacinto River from the
Ramona Expressway south to Railroad Canyon,
and upper Salt Creek west of Hemet.
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
three core localities (alkali Habitats within
the San Jacinto Wildlife Area, the
floodplains of the San Jacinto River from
Ramona Expressway south to Railroad
Canyon and the upper Salt Creek drainage
area west of Hemet) within large blocks
of Habitat in the MSHCP Conservation
Area. In addition, implementation of
Objective 3 for this species will provide
new data to guide Reserve Assembly,
m a n ag e m e n t and mon i t o r i n g .
Approximately 1,370 acres of potential
Habitat for spreading navarretia will be
outside the MSHCP Conservation
Area. It is important to note, however,
that this potential Habitat is included
within the Narrow Endemic Plant
Species survey area.
Yes, see Section
6.1.3 (Protection
of Narrow
Endemic Plant
Species)
8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and enhancing the floodplain
processes of the San Jacinto River, Mystic Lake and upper Salt
Creek, including intermittent flooding and periodic pooling.
Particular management emphasis will be given to preventing
alteration of hydrology and floodplain dynamics, farming, fire and
fire suppression activities, off-road vehicle use, grazing and
competition from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-143
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for spreading navarretia will
be conducted as part of the project review process for
public and private projects within the Narrow Endemic
Plant Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species Survey Area
Map, Figure 6-1 of the MSHCP, Volume I). Spreading
navarretia located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.1.3, MSHCP, Volume 1.
Objective 3: Surveys for the spreading navarretia will be
conducted as part of the project review process for
public and private projects within the Narrow
Endemic Plant Species survey area where suitable
habitat is present (see Narrow Endemic Plant
Species Survey Area Map, Figure 6-1 of the
MSHCP, Volume I). Spreading navarretia located
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.1.3 of the MSHCP, Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Objective 5: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained in
order to provide for the distribution of the species
to shift over time as hydrologic conditions and
seed bank sources change.
Implementation of Objectives 4 and 5 for
this species will maintain alluvial
processes (floodplain hydrology and
flooding) upon which this species
depends.
sticky-leaved dudleya
(Dudleya viscida)
2 Sticky-leaved dudleya is designated as a Group 2 species
because, in the Plan Area, it is restricted to coastal sage
scrub and chaparral on mesic, mostly north-facing, and
often steep, rocky canyon slopes within the Santa Ana
Mountains. The undisputed known occurrences are
concentrated within the San Mateo Wilderness Area of the
Santa Ana Mountains within USFS Lands.
Objective 1: Include within the MSHCP Conservation Area
71,290 acres of suitable Habitat (chaparral and
coastal sage scrub within the Santa Ana Mountains
Bioregion).
Objective 2: Include within the MSHCP Conservation Area the
three populations within the San Mateo Wilderness
Area of the Santa Ana Mountains.
Conservation for this species will be
achieved by inclusion of at least 71,290
acres of suitable Conserved Habitat and
the three known localities (one Core Area)
within large blocks of Habitat in the
MSHCP Conservation Area.
Approximately 26,740 acres (27
percent) of potential Habitat for
sticky-leaved dudleya would not be
included in the MSHCP Conservation
Area. There is one known population
cluster of this species in the San
Mateo Wilderness. No known
undisputed populations occur outside
None 8 Reserve Managers will avoid or minimize adverse effects to
sticky-leaved dudleya to the maximum extent practicable.
Reserve Managers will manage known and future occurrences
of this species where rock climbing is allowed or proposed.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-144
This species is designated as a Forest Sensitive Species
which can be managed at the site-specific level. Forest
Service Sensitive Species are protected through the
implementation of Forest Plans and the biological
evaluation (BE) process, which considers the potential
effects of Forest Service activities on these species.
the MSHCP Conservation Area.
thread-leaved brodiaea
(Brodiaea filifolia)
3 Thread-leaved brodiaea is designated as a Group 3
species because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. Twelve
populations of thread-leaved brodiaea are known from
western Riverside County along the San Jacinto River in
Nuevo, Perris, and the San Jacinto Wildlife Area; on Salt
Creek; on the Santa Rosa Plateau; and west of the Santa
Rosa Plateau. These populations are primarily clustered
into two complexes: one along the San Jacinto River near
Perris and Lakeview, and the other on the Santa Rosa
Plateau. The San Jacinto River floodplain supports about
half of the remaining western Riverside County
populations. A small population is known to occur in the
Old Salt Creek drainage west of Hemet.
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for
thread-leaved brodiaea will be conducted as part of the
project review process for public and private projects
within the Criteria Area where suitable Habitat is present
(see Criteria Area Species Survey Area Map, Figure 6-2 of
the MSHCP, Volume I). Thread-leaved brodiaea located
as a result of survey efforts shall be conserved in
accordance with procedures described within Section
6.3.2, MSHCP, Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area the
Core Areas located at Goetz Road (EO1), Perris
Valley airport (EO2), Tenaja Road (EO3), Mesa de
Colorado (EO5), Hemet vernal pools (EO 26),
South SJWA (EO27), Squaw Mountain (EO29),
Santa Rosa ranch (EO30), Slaughterhouse (EO31),
North SJWA (EO43) and Redondo Mesa (EO 52).
Objective 3: Surveys for this species will be conducted as part
of the project review process for public and private
projects in the Criteria Area where suitable habitat
is present (see Criteria Area Species Survey Area
Map, Figure 6-2 of the MSHCP, Volume I). This
species located as a result of survey efforts shall
be conserved in accordance with procedures
described within Section 6.3.2, MSHCP, Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
the 12 known localities (including both
core locations) within large blocks of
Habitat in the MSHCP Conservation Area.
In addition, implementation of Objective 3
for this species will provide new data to
guide Reserve Assembly, management
and monitoring.
Approximately 1,370 acres (17
percent) of potential Habitat for
thread-leaved brodiaea will be outside
the MSHCP Conservation Area. Nine
of the 18 occurrences will not be
conserved in the MSHCP Conservation
Area.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and enhancing the floodplain
processes of the San Jacinto River, Mystic Lake and upper Salt
Creek, including intermittent flooding and periodic pooling.
Particular management emphasis will be given to preventing
alteration of hydrology and floodplain dynamics, farming, fire and
fire suppression activities, off-road vehicle use, grazing and
competition from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-145
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Objective 5: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained in
order to provide for the distribution of the species
to shift over time as hydrologic conditions and
seed bank sources change.
Vail Lake ceanothus
(Ceanothus ophiochilus)
3 Vail Lake ceanothus is designated as a Group 3 species
because of its highly restricted geographic distribution
within the Plan Area (specifically Vail Lake and the Agua
Tibia Wilderness).
This is a species on the Additional Survey Needs and
Procedures (Section 6.3.2) list and surveys for Vail Lake
ceanothus will be conducted as part of the project review
process for public and private projects within the Criteria
Area where suitable Habitat is present (see Criteria Area
Species Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). Vail Lake ceanothus located as a result of
survey efforts shall be conserved in accordance with
procedures described within Section 6.3.2, MSHCP,
Volume I.
Objective 1: Include within the MSHCP Conservation Area at
least 13,290 acres of suitable Habitat (chaparral in
the vicinity of Vail Lake and the Agua Tibia
Wilderness).
Objective 2: Include within the MSHCP Conservation Area at
least three core locations in the vicinity of Vail Lake
and the Agua Tibia Wilderness area.
Objective 3: Surveys for this species will be conducted as part
of the project review process for public and private
projects within the Criteria Area where suitable
Habitat is present (see Criteria Area Species
Survey Area Map, Figure 6-2 of the MSHCP,
Volume I). This species located as a result of
survey efforts shall be conserved in accordance
with procedures described within Section 6.3.2,
MSHCP, Volume I.
Conservation for this species will be
achieved by inclusion of at least 13,290
acres of suitable Conserved Habitat and
three known localities (representing 54
records) within large blocks of Habitat in
the MSHCP Conservation Area. In
addition, implementation of Objective 3 for
this species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 3,350 acres of potential
Habitat for Vail Lake ceanothus will be
outside the MSHCP Conservation
Area. All of the known locations of
this species will be conserved.
Yes, see Section
6.3.2 (Additional
Survey Needs and
Procedures)
8 General Management Measure 4. Reserve Managers will
manage the known and future occurrences of this species for
competition with non-native species, flood control activities and
alteration of the natural fire regime.
vernal barley
(Hordeum intercedens)
2 Vernal barley is designated as a Group 2 species because
of its limited geographic distribution and specialized
Habitat requirements and management requirements for
floodplain processes. Twelve populations of vernal barley
are known from western Riverside County along the San
Jacinto River in Nuevo, Perris, and the San Jacinto
Wildlife Area; on Salt Creek; on the Santa Rosa Plateau;
and west of the Santa Rosa Plateau. These populations
are primarily clustered into two complexes: one along the
San Jacinto River near Perris and Lakeview, and the other
in the upper Salt Creek drainage west of Hemet. The San
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools within the San Jacinto
River, Mystic Lake and Salt Creek portions of the
MSHCP Conservation Area).
Objective 2: Include within the MSHCP Conservation Area at
least four locations (including three core locations)
of vernal barley: the San Jacinto Wildlife Area, the
middle segment of the San Jacinto River from
Ramona Expressway south to Railroad Canyon, the
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
three core localities (middle segment of
the San Jacinto River, the San Jacinto
Wildlife Area, and upper Salt Creek) within
large blocks of Habitat in the MSHCP
Conservation Area. In addition,
implementation of Objective 3 for this
species will provide new data to guide
Reserve Assembly, management and
Approximately 1,370 acres (17
percent) of potential Habitat for vernal
barley will be outside the MSHCP
Conservation Area. No known extant
populations will be outside the MSHCP
Conservation Area.
None 8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and enhancing the floodplain
processes of the San Jacinto River, Mystic Lake and upper Salt
Creek, including intermittent flooding and periodic pooling.
Particular management emphasis will be given to preventing
alteration of hydrology and floodplain dynamics, farming, fire and
fire suppression activities, off-road vehicle use, grazing and
competition from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-146
Jacinto River floodplain supports about half of the
remaining western Riverside County populations. A small
population is known to occur near Nichols Road at
Alberhill.
upper Salt Creek drainage west of Hemet, and the
occurrence near Nichols Road at Alberhill.
Objective 3: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained in
order to provide for the distribution of the species
to shift over time as hydrologic conditions and
seed bank sources change.
monitoring. Implementation of Objective 4
for this species will maintain hydrological
conditions in the floodplain along Salt
Creek in its existing condition from Warren
Road to Newport Road and the vernal
pools in Upper Salt Creek west of Hemet.
Wright’s trichocoronis
(Trichocoronis wrightii
var. wrightii)
3 Wright's trichocoronis is designated as a Group 3 species
because of its limited geographic distribution and
specialized Habitat requirements and management
requirements for floodplain processes. This species is
primarily restricted to the alkali floodplains of the San
Jacinto River in association with Willows, Domino and
Traver soils. Wright's trichocoronis occurs as two core
locations along the middle segment of the San Jacinto
River and in the San Jacinto Wildlife Area.
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for Wright's trichocoronis will
be conducted as part of the project review process for
public and private projects within the Narrow Endemic
Plant Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species Survey Area
Objective 1: Include within the MSHCP Conservation Area at
least 6,900 acres of suitable habitat (grassland and
playas and vernal pools including Willow, Domino
and Traver soils, along the San Jacinto River, at
Mystic Lake, and Salt Creek).
Objective 2: Include within the MSHCP Conservation Area at
least four of the known locations along the San
Jacinto River from the vicinity of the Ramona
Expressway and San Jacinto Wildlife Area and
along the northern shore of Mystic Lake.
Objective 3: Surveys for Wright's trichocoronis will be
conducted as part of the project review process for
public and private projects within the Narrow
Endemic Plant Species survey area where suitable
Conservation for this species will be
achieved by inclusion of at least 6,900
acres of suitable Conserved Habitat and
two core localities (middle segment of the
San Jacinto River and the San Jacinto
Wildlife Area) within large blocks of Habitat
in the MSHCP Conservation Area. In
addition, implementation of Objective 3 for
this species will provide new data to guide
Reserve Assembly, management and
monitoring. Implementation of Objectives
4 and 5 for this species will maintain
alluvial processes (floodplain hydrology
and flooding) upon which this species
depends.
Approximately 1,370 acres of potential
Habitat for Wright's trichocoronis will
be outside the MSHCP Conservation
Area. It is important to note that the
potential Habitat occurring outside of
the MSHCP Conservation Area is
located within the Narrow Endemic
Plant Species survey area. None of
the known populations will be located
outside the MSHCP Conservation
Area.
Yes, see Section
6.1.3 (Protection
o f N a r r o w
Endemic Plant
Species)
8 General Management Measure 4. Reserve Managers will
ensure Habitat support functions within the MSHCP
Conservation Area by maintaining and enhancing the floodplain
processes of the San Jacinto River, Mystic Lake and upper Salt
Creek, including intermittent flooding and periodic pooling.
Particular management emphasis will be given to preventing
alteration of hydrology and floodplain dynamics, farming, fire and
fire suppression activities, off-road vehicle use, grazing and
competition from non-native plant species.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-147
Map, Figure 6-1 of the MSHCP, Volume I). Wright's
trichocoronis located as a result of survey efforts shall be
conserved in accordance with procedures described
within Section 6.1.3, MSHCP, Volume I.
habitat is present (see Narrow Endemic Plant
Species Survey Area Map, Figure 6-1 of the
MSHCP, Volume I). Wright's trichocoronis located
as a result of survey efforts shall be conserved in
accordance with procedures described within
Section 6.1.3, MSHCP, Volume I.
Objective 4: Include within the MSHCP Conservation Area the
floodplain along the San Jacinto River consistent
with Objective 1. Floodplain processes will be
maintained along the river in order to provide for
the distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change. A potential future flood control project
along the San Jacinto River designed and
constructed consistent with the criteria for the San
Jacinto River project presented in Section 7.0 of
the MSHCP, Volume I and with the Area Plan
Subunit guidelines for Subunit 1 of the
Lakeview/Nuevo Area Plan and Subunit 4 of the
Mead Valley Area Plan will be considered to be
consistent with this objective.
Objective 5: Include within the MSHCP Conservation Area the
floodplain along Salt Creek generally in its existing
condition from Warren Road to Newport Road and
the vernal pools in Upper Salt Creek west of
Hemet. Floodplain processes will be maintained
within the linkage in order to provide for the
distribution of the species to shift over time as
hydrologic conditions and seed bank sources
change.
Yucaipa onion
(Allium marvinii)
3 Yucaipa onion is designated as a Group 3 species
because of its specialized Habitat requirements and
limited distribution. This species is dependent on clay
openings within chaparral Habitat at elevations between
760 and 1065 m. The distribution of this species within
the Plan Area is unknown at this time. Three historic
occurrences date from 1904 to 1921. No recent
occurrences have been positively identified within the
Plan Area.
Objective 1: Include within the MSHCP Conservation Area at
least 1,200 acres of suitable Habitat (chaparral
between 760 and 1065 m in the San Bernardino
Mountains Bioregion).
Objective 2: Surveys for the Yucaipa onion will be conducted as
part of the project review process for public and
private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat is
present (see Narrow Endemic Plant Species
Conservation for this species will be
achieved by inclusion of at least 1,200
acres of suitable Habitat in the MSHCP
Conservation Area. The three historic
occurrences may be included in the
MSHCP Conservation Area. In addition,
implementation of Objective 2 for this
species will provide new data to guide
Reserve Assembly, management and
monitoring.
Approximately 2,460 acres (67%) of
potential Habitat will not be conserved.
It is not known whether the three
historic occurrences are included
within the MSHCP Conservation Area.
It is important to note, however, that
this potential Habitat is included within
the Narrow Endemic Plant Species
survey area and Conservation of this
potential Habitat and three historic
Yes, see Section
6.1.3 (Protection
o f N a r r o w
Endemic Plant
Species)
8 Unknown.
9.0 Conservation and Incidental Take Estimates
TABLE 9-2. SPECIES CONSERVATION SUMMARY
MONITORING
COMMON NAME/
SCIENTIFIC NAME
GROUP
DESIGNATION RATIONALE FOR GROUP DESIGNATION SPECIES OBJECTIVES
CONSERVATION ANALYSIS
SUMMARY INCIDENTAL TAKE
SURVEY
REQUIREMENTS
Survey
Distribution
At Least
Every “X”
Years
Survey
Reproduction
Every “X”
Years MANAGEMENT ACTIVITIES SUMMARY
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-148
This is a species on the Narrow Endemic Plant List
(Section 6.1.3) and surveys for Yucaipa onion will be
conducted as part of the project review process for public
and private projects within the Narrow Endemic Plant
Species survey area where suitable Habitat is present
(see Narrow Endemic Plant Species Survey Area Map,
Figure 6-1 of the MSHCP, Volume I). Yucaipa onion
located as a result of survey efforts shall be conserved in
accordance with procedures described within Section
6.1.3, MSHCP, Volume I.
Survey Area Map, Figure 6-1 of the MSHCP,
Volume I). Yucaipa onion located as a result of
survey efforts shall be conserved in accordance
with procedures described within Section 6.1.3,
MSHCP, Volume I.
occurrences, if still extant and not
located in the MSHCP Conservation
Area, will be addressed in accordance
with the procedures presented in the
Narrow Endemic Plant Species policy
described in Section 6.1.3 of the
MSHCP, Volume I.
9.0 Conservation and Incidental Take Estimates
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-149
9.0 Conservation and Incidental Take Estimates
VOLUME I � SECTION 9 June 17, 2003
FINAL MSHCP 9-150