Across the country, USGS scientists research amphibians to help other agencies manage this historically underappreciated and now declining group. Our scientists have learned that no single threat explains global amphibian declines; instead, a variety of local and global factors are contributing. Habitat loss, disease, contaminants, and other threats are all part of the pattern.
Amphibian Research
Amphibian Research in Southern California
Ecology and Conservation of Amphibians in Northern California
Herpetological Research Team (FRESC)
Amphibian Research and Monitoring Initiative: Midwest Region
Status of Northern Leopard Frogs in the Southwest
Modeling Colonization of a Population of Chiricahua Leopard Frogs
Managing the Extinction Risk of the Shenandoah Salamander
Amphibian Chytrid Fungus Sampling in Arizona and Mexico
Monitoring of Amphibians at St. Marks National Wildlife Refuge in Northwest Florida
Population Demography and Food Web Analysis of Large Aquatic Salamanders (Siren and Amphiuma) in North Florida
Use of a Sustained-Release Chemical Delivery Device in Assessing Effects of Systemic Insecticides
Adaptive Habitat Conservation for Flatwoods Salamanders
Recent data (2020-2022) related to USGS amphibian research is listed below. A complete listing of USGS amphibian data is available from the button below.
Shasta Salamanders Surveys for the Shasta-Trinity National Forest (ver. 2.0, July 2020)
The Louisiana Amphibian Monitoring Program from 1997 to 2017: Data
Species Observations from Pitfall Trap Arrays, Species Pool Matrices, and Patch Locations in Southern California from 1995-2015
Characteristics of Sites Sampled for eDNA of Amphibians in Mendocino County, California, 2016
Site and Survey Data for Dixie Valley Toads in Churchill County, Nevada, 2019
Site and Survey Data for Amphibian Surveys in Yosemite National Park, 2018
Code and Data to Fit an Integrated Population Model for the Foothill Yellow-legged Frog, Rana boylii, in Northern California
Dixie Valley Toad Radio Telemetry Data from Churchill County, Nevada, 2018-2019
Boreal toad metamorph capture, recapture and covariates data, Colorado 2017-2018
Capture-recapture, disease and covariate data for boreal toads from Blackrock Wyoming 2019
Mark-recapture data for a boreal toad metapopulation at the Lost Trail National Wildlife Refuge, Montana (2003-2018)
North Coast and Cascades Network consolidated amphibian database (1984-2005)
Recent publications (2020-2022) related to USGS amphibian research are listed below. A complete listing of USGS amphibian publications is available from the button below.
Looking ahead, guided by the past: The role of U.S. national parks in amphibian research and conservation
Multi-scale patterns in occurrence of an ephemeral pool-breeding amphibian
Identifying factors linked with persistence of reintroduced populations: Lessons learned from 25 years of amphibian translocations
Comparative toxicity of aquatic per- and polyfluoroalkyl substance exposure in three species of amphibians
Site- and individual-level contaminations affect infection prevalence of an emerging infectious disease of amphibians
Multi-species amphibian monitoring across a protected landscape: Critical reflections on 15 years of wetland monitoring in Grand Teton and Yellowstone national parks
Low occurrence of ranavirus in the Prairie Pothole Region of Montana and North Dakota (USA) contrasts with prior surveys
Effects of salinity and a glucocorticoid antagonist, RU486, on waterborne aldosterone and corticosterone of northern leopard frog larvae
Juvenile African clawed frogs (Xenopus laevis) express growth, metamorphosis, mortality, gene expression, and metabolic changes when exposed to thiamethoxam and clothianidin
Thermal conditions predict intraspecific variation in senescence rate in frogs and toads
Acute mortality in California tiger salamander (Ambystoma californiense) and Santa Cruz long-toed salamander (Ambystoma macrodactylum croceum) caused by Ribeiroia ondatrae (Class: Trematoda)
Responses of migratory amphibians to barrier fencing inform the spacing of road underpasses: A case study with California tiger salamanders (Ambystoma californiense) in Stanford, CA, USA
Across the country, USGS scientists research amphibians to help other agencies manage this historically underappreciated and now declining group. Our scientists have learned that no single threat explains global amphibian declines; instead, a variety of local and global factors are contributing. Habitat loss, disease, contaminants, and other threats are all part of the pattern.
Amphibian Research
Amphibian Research in Southern California
Ecology and Conservation of Amphibians in Northern California
Herpetological Research Team (FRESC)
Amphibian Research and Monitoring Initiative: Midwest Region
Status of Northern Leopard Frogs in the Southwest
Modeling Colonization of a Population of Chiricahua Leopard Frogs
Managing the Extinction Risk of the Shenandoah Salamander
Amphibian Chytrid Fungus Sampling in Arizona and Mexico
Monitoring of Amphibians at St. Marks National Wildlife Refuge in Northwest Florida
Population Demography and Food Web Analysis of Large Aquatic Salamanders (Siren and Amphiuma) in North Florida
Use of a Sustained-Release Chemical Delivery Device in Assessing Effects of Systemic Insecticides
Adaptive Habitat Conservation for Flatwoods Salamanders
Recent data (2020-2022) related to USGS amphibian research is listed below. A complete listing of USGS amphibian data is available from the button below.
Shasta Salamanders Surveys for the Shasta-Trinity National Forest (ver. 2.0, July 2020)
The Louisiana Amphibian Monitoring Program from 1997 to 2017: Data
Species Observations from Pitfall Trap Arrays, Species Pool Matrices, and Patch Locations in Southern California from 1995-2015
Characteristics of Sites Sampled for eDNA of Amphibians in Mendocino County, California, 2016
Site and Survey Data for Dixie Valley Toads in Churchill County, Nevada, 2019
Site and Survey Data for Amphibian Surveys in Yosemite National Park, 2018
Code and Data to Fit an Integrated Population Model for the Foothill Yellow-legged Frog, Rana boylii, in Northern California
Dixie Valley Toad Radio Telemetry Data from Churchill County, Nevada, 2018-2019
Boreal toad metamorph capture, recapture and covariates data, Colorado 2017-2018
Capture-recapture, disease and covariate data for boreal toads from Blackrock Wyoming 2019
Mark-recapture data for a boreal toad metapopulation at the Lost Trail National Wildlife Refuge, Montana (2003-2018)
North Coast and Cascades Network consolidated amphibian database (1984-2005)
Recent publications (2020-2022) related to USGS amphibian research are listed below. A complete listing of USGS amphibian publications is available from the button below.