otay ranch preserve city of chula vista-county of san diego · 2017. 8. 22. · city of chula vista...
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OtayOtay Ranch PreserveRanch PreserveCity of Chula VistaCity of Chula Vista--County of San DiegoCounty of San Diego
SDMMP Monitoring and Management Coordination Meeting
January 26, 2011
Prioritizing Survey, Monitoring,Prioritizing Survey, Monitoring,and Maintenance Tasksand Maintenance Tasks
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Management and Monitoring of the Preserve follows the Guidelines and Requirements of the Otay Ranch Resource Management Plans and
the MSCP
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Salt Creek and San Ysidro Preserves
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Previously Conveyed Preserve LandsPreviously Conveyed Preserve LandsApproximately 1,300 acresApproximately 1,300 acres
Salt Creek Parcel San Ysidro Parcel
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OtayOtay Ranch Resource Management PlanRanch Resource Management Plan
The purpose of the RMP is to establish:
“a permanent preserve within Otay Ranch to protect and enhance biological, paleontological, cultural, and scenic resources; maintain biological diversity; and promote the survival and recovery of native species and habitats”(County of San Diego 2007).
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RMP Phases 1 and 2RMP Phases 1 and 2
• The Phase 1 RMP (1993) identifies an open space system as a permanent 11,375-acre Preserve dedicated to the protection and enhancement of the multiple resources present on Otay Ranch .
• The Phase 1 RMP (1996 revised 2002) is to be implemented through the Phase 2 RMP. Unlike the Phase 1 RMP, the Otay Ranch Phase 2 RMP is a process rather than a single plan or document
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RMP Phase 2 ImplementationRMP Phase 2 Implementation
• A comprehensive monitoring program for the Preserve is to be developed in conjunction with the Phase 2 RMP.
• In addition, an annual monitoring program is to be developed and designed to detect changes in quality and quantity of on-site biological resources, such as sensitive wildlife and plant species, and habitat also considered to be sensitive.
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RMP Phase 2 ImplementationRMP Phase 2 Implementation
• Tasks that require a continuing commitment to implementation include, but are not limited to, ongoing studies for the coastal California gnatcatcher (CAGN, Polioptila californica californica) and coastal cactus wren (CACW, Campylorhynchus brunneicapillus).
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Preserve Owner Manager (POM)Preserve Owner Manager (POM)
• In 1996, the San Diego County Board of Supervisors authorized the formation of a POM (County 2010). The City of Chula Vista and the County of San Diego form the POM.
• The POM is responsible for a number of tasks including management of resources, restoration of habitat, and enforcement of open space restrictions for the Preserve.
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Previous Baseline SurveysPrevious Baseline Surveys
Baseline Surveys for Salt Creek and San Ysidrowere conducted by Dudek in 2009. The surveys included:
• Vegetation Mapping• Avian Point Counts• Focused Surveys for CAGN and Quino Checkerspot• Rare Plants• Mapping Exotics
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Preserve Steward/Biologist TasksPreserve Steward/Biologist Tasks
• RECON was hired by the City and County in 2009.
• Oversee and coordinate Otay Ranch preserve management, monitoring, and reporting with the Wildlife Agencies, the POM, Otay Ranch land owners who may convey lands within the Preserve, regional monitoring entities, interested public groups, and the general public.
• Provide science-based technical recommendations to POM staff and any contractors retained to conduct specific management tasks, monitoring, data collection and analysis, and adaptive management programs.
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WorkplanWorkplan 20092009--10 Identified the Following 10 Identified the Following Tasks to be PerformedTasks to be Performed
• Exotics Control• Assessment of Access-Trespass Issues• Trash Removal• Establish Photo Points for Detecting Long-term Changes• General Avian Point Count Surveys• Focus Surveys Rare Plants, CAGN and Cactus Wren• QCB Habitat Threats Assessment
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Prioritizing Weed Control Efforts:Prioritizing Weed Control Efforts:We canWe can’’t weed the whole world!t weed the whole world!
Priority for treating invasive species are based on several criteria:
• California Invasive Plant Council (Cal-IPC) ratings
• Feasibility of successful control
• Early Detection Rapid Response-Control small populations when first detected (Bay Area Early Detection Network 2010)
• Threat to sensitive species.
All four of these factors are taken into consideration when determining treatment priority for invasive species.
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Prioritizing Weed Control EffortsPrioritizing Weed Control Efforts
• Tamarisk-High• Giant Reed-High• Pampas Grass-High• Sweet Fennel-High• Blue Gum-Moderate• Tree Tobacco-Moderate• Mexican Fan Palm-
Moderate• Stinkwort-Moderate• Peruvian Pepper-
Limited
Salt Creek-Control PriorityHigh: stinkwort
Medium: pampas grass, tree tobacco
Low: tamarisk, giant reed, wild fennel, Peruvian pepper tree, blue gum, Mexican fan palm
San YsidroHigh: stinkwort
Medium: tamarisk, pampas grass
Species Observed and Cal-Ipc Rating
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RECON Crews Sprayed RECON Crews Sprayed StinkwortStinkwort and then and then Biologists Hand Pulled Remaining Plants During Biologists Hand Pulled Remaining Plants During
Regular Site VisitsRegular Site Visits
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Access IssuesAccess Issues
Salt Creek• Multiple Uncontrolled Access Points (South and West
sides of Otay Valley• Fence Repair• Gate Installation• Additional Signage
San Ysidro• Primary Access Controlled by Locked Gate• Access issues are mostly related to the on-going Border
Patrol Mission
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Identifying Fence Repair Areas and Identifying Fence Repair Areas and Locations for Additional SignageLocations for Additional Signage
Southern Boundary Fence at Salt Creek
Existing Sign at Salt Creek
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Fence Repair Assessment
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The Problem with Fixing the FenceAdding More Signs and Gates…
It’s in the FUDS AreaWe might blow up!
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Photo Points MonitoringLocations-Salt Creek
Repeat Photographs For Repeat Photographs For Detecting LongDetecting Long--term term
Changes in VegetationChanges in Vegetation
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Spring and Late SeasonSpring and Late SeasonRepeat PhotosRepeat Photos
April 2010 at San Ysidro September 2010 same location
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Rare Plant SurveysRare Plant Surveys
Snake Cholla at Salt CreekMSCP NE and CNPS 1B.1
Variegated Dudleya at Salt Creek MSCP NE and CNPS 1B.1
Dunn’s Mariposa Lily at San YsidroMSCP NE and CNPS 1B.2
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Rare Plant SurveysRare Plant Surveys
Otay Mountain Lotus at San YsidroCNPS 1B.1
Small-Flowered Morning Glory San Ysidro-CNPS 4.2
Jennifer’s Monardella at San YsidroCNPS 1B.2
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Rare PlantsRare PlantsOtay Lilac
CNPS 1B.2
San Diego GoldenstarMSCP and CNPS 1B.1
Orcutt’s BrodiaeaMSCP NE CNPS 1B.1
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Faunal SurveysFaunal Surveys
Coastal Cactus Wren NestMSCP, CSC
Coastal California GnatcatcherFT, MSCP, CSC
QCB Habitat Threats Assessment
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Incidental ObservationsIncidental Observations
Coastal Rosy BoaFSC
Two-striped Garter SnakeCDFG CSC
Roadrunner
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Incidental ObservationsIncidental Observations
Bullock’s Oriole
Lark Sparrow
Red Tailed Hawk
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Incidental ObservationsIncidental Observations
California Horned LarkCDFG CSC
Killdeer Salt Creek
Western Mule DeerMSCP
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Red Diamond RattlesnakeCDFG CSC
Southern Pacific Rattlesnake
Speckled Rattlesnake
All 3 Species of Rattlesnake at San Ysidro
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Newly Conveyed Lands
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Newly Conveyed LandsNewly Conveyed Lands
Baseline Surveys to be Conducted on Approximately 1,500 acres inSpring 2011
Reprioritized tasks so that new lands can be surveyed.Need to know what we have before we can manage it effectively.
Surveys Include: Vegetation Mapping, general floral and faunal surveys and reporting
Data will be provided to SanBIOS
SanBIOS is used to organize a catalog of species observations that have been recorded by professional biologists from the County ofSan Diego as well as from various other agencies and private firms.
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Thank You!Thank You!