Status and Trends

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Reptiles

Lizards Turtles

Related Subjects

Threatened and Endangered Species

Reptiles+Human Activities+Land Use Change	Did You Know...? Diamondback Terrapin in the Chesapeake Bay The increase in predators (raccoons, foxes, cats, dogs, gulls) that comes with urban sprawl may be a cause of diamondback terrapin nesting failure.
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Modeling Habitat of the Desert Tortoise (Gopherus agassizii) in the Mojave and Parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona

May 21 2009 | Publisher: USGS | Format: URL

pubs.usgs.gov — A new tool provides land managers with a predictive model for mapping the potential distribution of desert tortoise habitat and to evaluate different land-use issues the tortoises face at a landscape scale. The model incorporates an extensive amount of field data for desert tortoises, as well as environmental data related to landscape attributes, More...

Scientists Discover a New Pacific Iguana and More Clues to a Longtime Mystery

Publisher: USGS (San Diego Field Station) | Science Center: Western Ecological Research Center (WERC, Sacramento) | Format: URL

www.werc.usgs.gov — The Pacific iguanas of the Fijian and Tongan archipelagos are a biogeographic enigma in that their closest relatives are found only in the New World, separated by 8,000 km of ocean. The Pacific iguanas have been dramatically affected by human activities; two species were eaten to extinction after human arrival in the Pacific some 2,800 years ago. More...