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<br />Appendix D <br />Biological Resources Background Information <br /> <br />Species Status* Habitat Potential For Occurance <br />California horned FSC,CSC Occurs in valley-foothill Low. Sand areas and washes minimal. <br />lizard hardwood, conifer and <br />Phrynosomo riparian habitats, as well <br />coranatum frontale as in pine-cypress juniper <br /> and annual grass <br /> habitats. Prefers sand <br /> areas, washes, flood <br /> plains and wind-blown <br /> deposits. <br />silvery legless lizard FSC,CSC Found in sandy or loose Low. No reported occurrences near <br />Anniella pulchra loamy soils under sparse Study Area. <br />pulchra vegetation. Soil moisture <br /> is essential. <br />San Joaquin FSC,CSC Found in open, dry Low. No typical scrub habitat present. <br />coachwhip habitats with little or no <br />(whipsnakel tree cover. Found in <br />Masticophis valley grassland and <br />flagellum ruddocki saltbush scrub in the San <br /> Joaquin Valley. Needs <br /> mammal burrows for <br /> refuge and egg-laying. <br />Alameda FT, ST Prefers a chaparral Low. Typical habitat not present in the <br />whipsnake habitat with rock Study Area. <br />Mosticophis latera/is outcroppings and small <br />euryxanthus mammal burrows for <br /> basking and refuge. Can <br /> occur n adjacent <br /> communities, including <br /> grassland and oak <br /> savanna. Found in the <br /> East Bay hills. <br />giant garter snake FT,ST Prefers freshwater marsh Low. Study Area is west ofknown <br />Thamnophis gigas and low gradient range. <br /> streams. Has adapted to <br /> drainage channels and <br /> irrigation ditches. <br />California tiger FPT,CSC Inhabits annual grass Moderate. Suitable habitat present in <br />salamander habitat and mammal cow pond and detention basins. <br />Ambystoma burrows. Seasonal ponds <br />californiense and vernal pools crucial <br /> to breeding <br />western spadefoot FSC,CSC Occurs primarily in Low. Study Area is west of known range <br />toad grasslands but <br />Scophiopus occasionally populates <br />hammondi; valley-foothill hardwood <br /> woodlands. Feed on <br /> insects, worms, and other <br /> invertebrates. <br /> <br />D21 <br />