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East Alameda County Regional Conservation Strategy: gy A Blueprint for Action
Users Advisory Group
December 11, 2008
East Alameda County Regional Conservation Strategy: gy A Blueprint - - PDF document
East Alameda County Regional Conservation Strategy: gy A Blueprint - - PDF document
12/12/2008 East Alameda County Regional Conservation Strategy: gy A Blueprint for Action Users Advisory Group December 11, 2008 Meeting Objectives Debrief October 16 th UAG tour 16 th UAG D b i f O b Review Phase 1 work products
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Questions about accomplishments so far…
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Phase 1
Focal species selection criteria Focal species list Public open space classification criteria Public open space map Land use classification and map Land cover mapping process Land cover map
Habitat Modeling
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Focal Species Habitat Modeling
Models give a better indication of where
i ld b d h bit t species could occur based on habitat characteristics
Will highlight areas where mitigation could
- ccur for given species
Determine when species surveys are needed Determine when species surveys are needed Gives context to the regulatory agencies
when they are reviewing a project
Focal Species Habitat Modeling
Use known life history information and available biotic and abiotic information to help biotic and abiotic information to help determine potential distribution:
Land-cover types Soils Elevation or slope characteristics Known dispersal or movement distances for wildlife Known dispersal or movement distances for wildlife Specific habitat features (e.g., aquatic habitat) Any other life history requirements that can be
replicated in GIS
Use known occurrences to check potential distribution
for accuracy.
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Delphinium recurvatum- Recurved larkspur
Habitat parameters
Sandy or clay alkaline soils in California annual grassland or valley sink scrub from 100 – 2000’.
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Blepharizonia plumosa Big tarplant
Habitat parameters
All California annual grassland up to 3609 feet on clay or clay loam soils.
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Atriplex joaquiniana – San Joaquin spearscale
Habitat parameters
All alkali meadow and scalds, alkali wetland, valley sink scrub between 0-1055 feet.
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Vernal pool fairy shrimp
Habitat parameters
All seasonal wetlands and vernal pools noted by Holland 1996.
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California red-legged frog
B di H bi Breeding Habitat
Perennial freshwater marsh, seasonal wetland, alkali wetland, pond (including stock ponds), streams, + 150’ buffer from those features.
Upland Habitat – movement
Two-mile buffer around breeding habitat in all land cover types except for: urban, rural residential, landfill, aqueduct.
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California tiger salamander
B di H bi Breeding Habitat
Perennial freshwater marsh, seasonal wetland, alkali wetland, ponds (including stock ponds) between 0-4,500 ft.
Upland Habitat – movement & non-breeding p g
1.6-mile buffer around breeding habitat in all land cover types except for: urban, rural residential, landfill, aqueduct.
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Foothill yellow-legged frog
B di d F i H bi d Breeding and Foraging Habitat – year round
All perennial rivers and streams in all land cover types except urban, rural residential, landfill.
Upland Habitat – movement & refuge p g
Buffer all breeding habitat by 165ft.
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Alameda whipsnake
Core Habitat – breeding and foraging
R k N h Mi d Ch l/Ch i Rock outcrop, Northern Mixed Chaparral/Chamise Chaparral, Mixed serpentine chaparral, northern coastal scrub/Diablan sage scrub.
Movement/Dispersal Habitat
All grassland, oak woodland, riparian forest & scrub land cover types within 300 meters (984 feet) of core habitat cover types within 300 meters (984 feet) of core habitat. All of Alameda and Vallecitos Creeks; esp. Alameda Creek where it crosses under I-680; and Vallecitos Creek linking Pleasanton Ridge and San Antonio Reservoir +300 m buffer (discussed in the Recovery Plan).
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American Badger
Denning/Mo ement Habitat Denning/Movement Habitat
California annual grassland, serpentine bunchgrass grassland, alkali meadow and scalds, valley oak woodland, developed agriculture, cropland, ruderal, rural residential.
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San Joaquin kit fox
Foraging and Movement Habitat
All l d k dl d d l d i l All grassland, oak woodland, developed agriculture, cropland, ruderal, rural- residential; Not in urban/suburban cover type. Added a 200 m buffer around major highways due to noise and traffic danger (Gerrard et al.).
Denning Habitat Denning Habitat
Habitat as described above, but with slope less than 40 degrees (Reese et al. 1992)
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Questions? Draft Document Outline
Ch 1 I d i Chapter 1 – Introduction Chapter 2 – Environmental Setting Chapter 3 – Conservation Strategy Chapter 4 – Implementation Chapter 5 – Literature Cited
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