USGS: Biology arrow iconStatus & Trends Home arrow iconTaxa/Organisms arrow iconAmphibians arrow iconSalamanders+Threatened and Endangered Species

Reports & Publications

None

Related Subjects

Amphibians

Frogs & Toads

Caves & Subterranean Habitats

Desert

Forest

Grassland

Inland Waters

Marine

Montane

Rocky Areas

Shrubland/Steppe

Urban

Wetlands

Have a suggestion for new material?


Amphibian Monitoring in the Canyon Country of the Colorado Plateau

February 2004 | Publisher: USGS (Amphibian Research and Monitoring Initiative (ARMI)) | Science Center: USGS Other | Format: URL

armi.usgs.gov — At least 13 amphibian species are found on the Colorado Plateau, although some have very limited distributions in this bioregion. Amphibian declines have been documented in many parts of the world, but knowledge of amphibians on the Colorado Plateau is inadequate to determine population status or trends for most species. The U.S. Geological More...

  • ARMI website logo

Using Proportion of Area Occupied to Estimate Abundance of Amphibians in Everglades National Park and Big Cypress National Preserve

Publisher: USGS (South Florida Information Access (SOFIA)) | Science Center: USGS Other | Format: URL

sofia.usgs.gov — This project uses data on detection of amphibian species after repeated sampling at a site to estimate the occupancy rate of various amphibian species (MacKenzie et al., 2002). Declines in amphibian populations have been documented for many regions and habitat types worldwide (Alford and Richards, 1999). No single cause for declines has been More...

  • Florida leopard frog, Rana sphenocephala

Amphibians

Publisher: NBII | Format: URL

www.nbii.gov — The NBII Amphibians Web site serves as a resource for individuals to learn about amphibians and factors affecting global amphibian populations. This site allows citizen scientists to contribute informative reports regarding local amphibian populations, thereby assisting the greater scientific community's efforts to better understand amphibian More...

  • American toad (Bufo americanus)

Conservation Genetics of Threatened Pacific Northwest Salamanders

Publisher: USGS | Science Center: Forest and Rangeland Ecosystem Science Center (FRESC, Corvallis) | Format: URL

fresc.usgs.gov — Molecular genetic methods are being used to assess population differentiation for a number of salamanders listed as species of concern in the Northwest Forest Management Plan: the Oregon slender salamander, Larch Mountain salamander, southern torrent salamander, Cascade torrent salamander, Columbia torrent salamander, and Olympic torrent More...

  • blank image