•conservation status of intertidal vascular plants of piermont marsh, rob naczi (new york...
TRANSCRIPT
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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What are
Intertidal Plants?
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Intertidal plants are poorly known,
even among botanists.
Why Study Intertidal Plants?
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Intertidal plants are poorly known,
even among botanists.
What we do know reveals
at least several species
are restricted to the
intertidal habitat.
Why Study Intertidal Plants?
Parkers Pipewort
(Eriocaulon parkeri),
an intertidal-restricted species
once common on the Hudson
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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New England
Bulrush
(Bolboschoenusnovae-angliae)
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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New England
Bulrush
(Bolboschoenusnovae-angliae)
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Intertidal plants are poorly known,
even among botanists.
What we do know reveals at least severalspecies are restricted to the intertidal habitat.
The intertidal habitat is quite rare.
Why Study Intertidal Plants?
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Intertidal plants are poorly known,
even among botanists.
What we do know reveals at least severalspecies are restricted to the intertidal habitat.
The intertidal habitat is quite rare.
Intertidal habitats face multiple threats.
Why Study Intertidal Plants?
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Why Study Intertidal Plants?
Given their restrictiveness and the
numerous environmental threats
they face, intertidal plants aresensitive indicators of
environmental health.
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Why Study Intertidal Plants?
Intertidal plants should be
conservation priorities.
Given their restrictiveness and the
numerous environmental threats
they face, intertidal plants aresensitive indicators of
environmental health.
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Objective
Conduct conservation assessments ofvascular plant species restricted or
nearly restricted to intertidal habitats.
Spongy Arrowhead(Sagittaria montevidensis ssp. spongiosa)
Smiths Bulrush(Schoeno lectiella smithii)
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Funding
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Methods
1. Reviewed museum specimens to assemble
baseline on historic occurrences.
Focused on 32 species.
Studied 850 specimens from 8 museums.
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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2. Conducted field work.
explored historic sites as well as many
previously unexplored sites
worked during daily narrow window of
opportunity
Methods, cont.
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Sarah Walker,
NYBG
David Werier,
N.Y. Flora Assocn.
Hudson River Field Participants
Charlie Zimmerman,
NYBG
Jenna Dorey,
NYBG
Suneeti Jog,
The NatureConservancy
Nava Tabak,
Scenic Hudson
Erik Kiviat,
Hudsonia
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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Hudson River Estuary
Study Sites
Historic
(1825-2003)
92 sites
Current
(2011-2014)
118 sites
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3. Analyzing data.
comparing historic to current occurrences
Methods, cont.
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Why It Matters
1. This is the first comprehensive study of the Hudsons
intertidal plants.
2. Intertidal plants are worth conserving.
unique elements of our shared natural heritage
inhabit very few places
3. Intertidal plants provide essential ecosystem services.
stabilize shorelines
buffer effects of storms
prevent erosion
provide food and shelter for animals
4. Intertidal plants are indicators of environmental health.
5. Results of this project will inform future restoration projects.
I t tid l Pl t K
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Intertidal Plants Known
Historically From PiermontSpecies Historic
1. Water hemp (Amaranthus cannabinus)
2. Sweet-scented fleabane (Pluchea odorata)
3. Annual salt-marsh aster (Symphyotrichum subulatum)
4. Big cord grass (Spartina cynosuroides)
5. Salt meadow cord grass (Spartina patens)
6. Smooth cord grass (Spartina alternifolia)
7. chair-makers bulrush (Schoenoplectus americanus)
8. Marsh elder (Iva frutescens)
9. Eastern grasswort (Lilaeopsis chinensis)
10. Salt grass (Distichlis spicata)
11. Seacoast bulrush (Bolboschoenus robustus)
12. New England bulrush (Bolboschoenus novae-angliae)
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water hemp(Amaranthuscannabinus)
sweet-scented flea-bane (Plucheaodorata)
annual salt-marsh aster(Symphyotrichum subulatum)
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eastern grasswort(Lilaeopsis chinensis)
marsh elder(Iva frutescens)
chair-maker's bulrush(Schoenoplectusamericanus)
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big cord grass(Spartina cynosuroides)
smooth cord grass(Spartina alterniflora)
salt meadow cordgrass (Spartina patens)
salt grass (Distichlis spicata)
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8/11/2019 Conservation Status of Intertidal Vascular Plants of Piermont Marsh, Rob Naczi (New York Botanical Garden) and David Werier (Botanical and Ecological Consultant)
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salt grass (Distichlis spicata)
seacoast bulrush (Bolboschoenusrobustus)
New England bulrush(Bolboschoenus novae-angliae)
I t tid l Pl t C tl
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Intertidal Plants Currently
Present At Piermont
Species Historic Current1. Water hemp (Amaranthus cannabinus)
2. Sweet-scented fleabane (Pluchea odorata)
3. Annual salt-marsh aster (Symphyotrichum subulatum)
4. Big cord grass (Spartina cynosuroides)
5. Salt meadow cord grass (Spartina patens)
6. Smooth cord grass (Spartina alternifolia)
7. chair-makers bulrush (Schoenoplectus americanus)
8. Marsh elder (Iva frutescens)
9. Eastern grasswort (Lilaeopsis chinensis)
10. Salt grass (Distichlis spicata)
11. Seacoast bulrush (Bolboschoenus robustus)
12. New England bulrush (Bolboschoenus novae-angliae) ?
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High-quality brackish marsh
European common reed (Phragmites australis)
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High-quality brackish marsh remnant
European common reed (Phragmites australis)
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European common reed (Phragmites australis)
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Nutrient Loading
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Erosion
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water hemp
(Amaranthus cannabinus)
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??? New England bulrush
(Bolboschoenus novae-
angliae)
E ti t d F Pi t
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marsh elder(Iva frutescens)
Extirpated From Piermont
Prognoses
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PrognosesNo Management
New England bulrush
becomes extirpated continued loss of high quality
marsh habitat
perhaps eventual loss of
other intertidal speciesdependent on intact marsh
habitat
Management perhaps New England bulrush
remains extant -high quality marsh habitat
remains
-perhaps degraded habitat is
restored no further loss of intertidal
species
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Acknowledgments
Invitation to present our work: Betsy Blair
Funding: Anonymous Private Trust, Hudson River
Foundation, Linde Ostro, Stephan Chenault
Permission to access herbaria: Curators of BH,
BKL, GH, NY, NYS, PH, US, Bard
Field assistance: Charles Zimmerman,
Jenna Dorey, Suneeti Jog, Erik Kiviat,
Nava Tabak, Sarah Walker
Assistance with maps: Michelle Naczi