How many amphibian species are there in the United States?
More than 6,000 amphibian species exist worldwide, with approximately 300 of them found in the United States.
The USGS is the lead agency for the Amphibian Research and Monitoring Initiative (ARMI), a program of amphibian monitoring, research, and conservation that was established in response to the worldwide decline of amphibian species.
Related Content
What is the United States doing about amphibian deformity and decline issues?
In response to indications of worldwide declines in amphibian populations, Interior Department agencies were directed to initiate a national program of amphibian monitoring, research, and conservation. There is an urgent need to determine the scope and severity of the problem and to investigate causes. As a result, the USGS formed the National...
What causes deformities in frogs, toads, and other amphibians?
Malformed frogs first came to national attention in 1995. Since that time, reports of malformed frogs and other amphibians have increased dramatically. Malformations have been reported in at least 44 states and in more than 50 species of frogs and toads. Multiple limbs, missing limbs, and facial abnormalities are the main malformations seen. Frog...
Why are frog and toad populations declining?
Research suggests that even though amphibians are severely declining worldwide, there is no smoking gun – and thus no simple solution – to halting or reversing these declines. Though every region in the United States has suffered amphibian declines, threats differ among regions. They include: Human influence from the Mississippi River east,...
Year Published: 2019
Species occurrence data for the nation
USGS Biodiversity Information Serving Our Nation (BISON) is a unique, web-based Federal mapping resource for species occurrence data in the United States and its Territories.BISON’s size is unprecedented, including records for most living species found in the United States and encompassing the efforts of more than a million professional and...
Attribution: Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Montana, United States of America, Core Science Systems, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Fort Collins Science Center, Ecosystems, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Western Ecological Research Center, Ecosystems, United States of America, Wildland Fire Science, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Cooperative Research Units, Great Lakes Science Center, Ecosystems, Water Resources, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Alaska Science Center, Ecosystems, Region 11: Alaska, Northern Prairie Wildlife Research Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Cooperative Research Units, Water Resources, Southwest Biological Science Center, Ecosystems, , United States of America, Wildland Fire Science, Western Ecological Research Center, Ecosystems, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Wildland Fire Science, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, United States of America, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Energy, Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Northern Rocky Mountain Science Center (NOROCK), Land Resources, Land Change Science Program, Region 11: Alaska, United States of America, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Pacific Islands Water Science Center, Water Resources, Coastal and Marine Hazards and Resources Program, Northwest - Pacific Islands, Guam, Marshall Islands, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Global Seismographic Network, Region 7: Upper Colorado Basin, Antarctica, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, Remote Sensing Phenology, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Western Ecological Research Center, Ecosystems, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Water, Ohio-Kentucky-Indiana Water Science Center, Water Resources, Ohio, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Region 7: Upper Colorado Basin, Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, Oceans, Pacific Coastal and Marine Science Center, Coastal and Marine Hazards and Resources Program, United States of America, Water Resources, North Central Climate Adaptation Science Center, Pacific Coastal and Marine Science Center, Environmental Health, National Wildlife Health Center, Environmental Health, Contaminant Biology Program, Region 4: Mississippi Basin, United States of America, Geology, Minerals, Energy, and Geophysics Science Center, Cooperative Research Units, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Western Geographic Science Center, Land Change Science Program, United States of America, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Cooperative Research Units, United States of America, Wildland Fire Science, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, California Water Science Center, Water Resources, Cooperative Research Units, Western Ecological Research Center, Ecosystems, United States of America, Wildland Fire Science, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Great Lakes Science Center, Ecosystems, Science and Decisions Center, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Delaware, United States of America, Western Ecological Research Center, Ecosystems, Northeast Climate Adaptation Science Center, Land Resources, Region 1: North Atlantic-Appalachian, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Volcano Hazards Program Office, Region 7: Upper Colorado Basin, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Natural Hazards, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, California Water Science Center, Water Resources, Cooperative Research Units, Fort Collins Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Cooperative Research Units, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Cooperative Research Units, Cooperative Research Units, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Pacific Coastal and Marine Science Center, Coastal and Marine Hazards and Resources Program, United States of America, California Water Science Center, Water Resources, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, Cooperative Research Units, Climate Adaptation Science Centers, Climate Adaptation Science Centers, Upper Midwest Environmental Sciences Center, Ecosystems, Climate Adaptation Science Centers, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Fisheries Program, Wetland and Aquatic Research Center, Ecosystems, Cooperative Research Units, Region 4: Mississippi Basin, Upper Midwest Water Science Center, United States of America, Laboratory for Infectious Disease and the Environment, Southwest Biological Science Center, Ecosystems, Land Change Science Program, , United States of America, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Geology, Minerals, Energy, and Geophysics Science Center, New York Water Science Center, Water Resources, Patuxent Wildlife Research Center, Ecosystems, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, Earthquake Science Center, Natural Hazards, Energy Resources Program, Region 1: North Atlantic-Appalachian, Cooperative Research Units, California Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Cooperative Research Units, Environmental Health, Water Resources, Toxic Substances Hydrology Program, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, Cooperative Research Units, Cooperative Research Units, New Jersey Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Cooperative Research Units, Western Ecological Research Center, Ecosystems, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Fort Collins Science Center, Ecosystems, Cooperative Research Units, Southwest Biological Science Center, Ecosystems, , Cooperative Research Units, Cooperative Research Units, Alaska Science Center, Ecosystems, Region 11: Alaska, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Great Lakes Science Center, Ecosystems, Great Lakes Science Center, Ecosystems, Cooperative Research Units, Cooperative Research Units, Oceans, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, California, United States of America, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Change Science Program, United States of America, Volcano Hazards Program Office, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, , Water, Geology, Minerals, Energy, and Geophysics Science Center, Region 7: Upper Colorado Basin, Montana, United States of America, Water, Geology, Minerals, Energy, and Geophysics Science Center, Region 7: Upper Colorado Basin, California, United States of America, Cooperative Research Units, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Cooperative Research Units, Southwest Biological Science Center, Ecosystems, , Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Geology, Minerals, Energy, and Geophysics Science Center, Upper Midwest Environmental Sciences Center, Ecosystems, Environments Program, United States of America, Southwest Biological Science Center, Ecosystems, , United States of America, Wildland Fire Science, Volcano Hazards Program Office, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, Pacific Island Ecosystems Research Center, Ecosystems, Northwest - Pacific Islands, Upper Midwest Environmental Sciences Center, Ecosystems, Cooperative Research Units, Oceans, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, Alaska, United States of America, Cooperative Research Units, Cooperative Research Units, Northeast Climate Adaptation Science Center, Land Resources, Region 1: North Atlantic-Appalachian, Western Fisheries Research Center, Ecosystems, Fisheries Program, Fort Collins Science Center, Water Resources, Cooperative Research Units, Region 7: Upper Colorado Basin, United States of America, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Upper Midwest Environmental Sciences Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, Ecosystems, , Volcano Hazards Program Office, Upper Midwest Water Science Center, Ecosystems, New England Water Science Center, Water Resources, Land Change Science Program, Region 4: Mississippi Basin, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Cooperative Research Units, Great Lakes Science Center, Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Great Lakes Science Center, Ecosystems, Great Lakes Science Center, Ecosystems, Cooperative Research Units, Cooperative Research Units, Alaska Science Center, Ecosystems, Region 11: Alaska, California Water Science Center, Water Resources, Upper Midwest Water Science Center, Water Resources, Toxic Substances Hydrology Program, United States of America, California Water Science Center, Water Resources, Southwest Biological Science Center, Ecosystems, , Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Alaska Science Center, Ecosystems, Region 11: Alaska, Alaska Science Center, Ecosystems, Region 11: Alaska, Pacific Islands Water Science Center, Water Resources, Cooperative Research Units, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Chile, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Western Geographic Science Center, , Volcano Hazards Program Office, Western Geographic Science Center, Cooperative Research Units, Kansas Water Science Center, Water Resources, Energy Resources Program, , United States of America, Reston Biogeochemical Processes in Groundwater Laboratory, Energy, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Volcano Hazards Program Office, Alaska Science Center, Region 11: Alaska, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, New England Water Science Center, Water Resources, Land Change Science Program, Region 4: Mississippi Basin, United States of America, Science Analytics and Synthesis (SAS), United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Science Analytics and Synthesis (SAS)
View Citation
U.S. Geological Survey, 2015, Species occurrence data for the Nation—USGS Biodiversity Information Serving Our Nation (BISON) (ver. 1.1, May 2019): U.S. Geological Survey Fact Sheet 2015–3068, 2 p., https://doi.org/10.3133/fs20153068.
Year Published: 2017
Early action to address an emerging wildlife disease
A deadly fungal pathogen, Batrachochytrium salamandrivorans (Bsal) that affects amphibian skin was discovered during a die-off of European fire salamanders (Salamandra salamandra) in 2014. This pathogen has the potential to worsen already severe worldwide amphibian declines. Bsal is a close relative to another fungal disease known as...
Adams, M.J.; Harris, M. Camille; Grear, Daniel A.Attribution: Fort Collins Science Center, Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Cooperative Research Units, Water Resources, , United States of America, Environmental Geomorphology and Geochronology Laboratory, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), California Water Science Center, Water Resources, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, , Southwest Biological Science Center, Ecosystems, , Idaho Water Science Center, Water Resources, United States of America, Wyoming-Montana Water Science Center, Water Resources, , Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Upper Midwest Environmental Sciences Center, Ecosystems, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Southwest Biological Science Center, Ecosystems, Land Change Science Program, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, California, United States of America, Western Ecological Research Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Western Ecological Research Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Energy & Wildlife, United States of America, , Volcano Hazards Program Office, , Energy and Minerals, Science and Decisions Center, Cooperative Research Units, Southwest Biological Science Center, Ecosystems, , Great Lakes Science Center, Ecosystems, Western Geographic Science Center, Land Change Science Program, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Western Ecological Research Center, Ecosystems, Energy & Wildlife, United States of America, National Wildlife Health Center, Ecosystems, Fisheries Program, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Western Ecological Research Center, Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, Western Ecological Research Center, Ecosystems, Astrogeology Science Center, Natural Hazards, , , Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, United States of America, Western Ecological Research Center, Environmental Health, Contaminant Biology Program, United States of America, Water Resources, , Water Resources, United States of America, Geosciences and Environmental Change Science Center, Climate Research and Development Program, Region 7: Upper Colorado Basin, Western Geographic Science Center, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Southwest Biological Science Center, Ecosystems, , Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Western Geographic Science Center, , Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Southwest Biological Science Center, Ecosystems, , Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Great Lakes Science Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Wetland and Aquatic Research Center, Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Wildlife Program, Biology and Ecosystems, John Wesley Powell Center for Analysis and Synthesis, Ecosystems, Status and Trends Program, United States of America, John Wesley Powell Center for Analysis and Synthesis, Western Ecological Research Center, Ecosystems, Water, California Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, United States of America, Cooperative Research Units, Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Eastern Energy Resources Science Center, Energy Resources Program, , United States of America, Cooperative Research Units, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Southwest Biological Science Center, Ecosystems, , Alaska Science Center, Ecosystems, Energy & Wildlife, Region 11: Alaska, United States of America, Great Lakes Science Center, Ecosystems, United States of America, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, Canada, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Southwest Biological Science Center, Ecosystems, , Western Ecological Research Center, Ecosystems, Alaska Science Center, Ecosystems, Region 11: Alaska, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, California Water Science Center, Water Resources, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Southwest Biological Science Center, Environmental Health, Contaminant Biology Program, , United States of America, Upper Midwest Environmental Sciences Center, Ecosystems, Energy & Wildlife, United States of America, Upper Midwest Environmental Sciences Center, Ecosystems, California Water Science Center, Water Resources, Caribbean-Florida Water Science Center, Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Water Resources, United States of America, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Southwest Biological Science Center, Ecosystems, , Patuxent Wildlife Research Center, Environmental Health, Contaminant Biology Program, Region 1: North Atlantic-Appalachian, United States of America, California Water Science Center, Water Resources, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Water, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Colorado, United States of America, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Water, Pennsylvania Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Pennsylvania, United States of America, Astrogeology Science Center, Natural Hazards, , , Cooperative Research Units, Biology and Ecosystems, Wetland and Aquatic Research Center, , Environmental Health, National Wildlife Health Center, Ecosystems, , Nevada, United States of America, National Wildlife Health Center, Ecosystems, California Water Science Center, Water Resources, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, , Volcano Hazards Program Office, Pacific Coastal and Marine Science Center, California Water Science Center, Water Resources, Communications and Publishing, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Water Resources, , Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, National Wildlife Health Center, Ecosystems, Region 4: Mississippi Basin, Pacific Coastal and Marine Science Center, Minerals, Alaska Science Center, Energy and Minerals, Mineral Resources Program, Region 11: Alaska, Alaska, United States of America, Mapping, Remote Sensing, and Geospatial Data, Alaska Science Center, Ecosystems, Mineral Resources Program, Region 11: Alaska, United States of America, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Minerals, Alaska Science Center, Ecosystems, Volcano Hazards Program Office, Region 11: Alaska, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, Canada, Alaska Science Center, Ecosystems, Region 11: Alaska, California Water Science Center, Water Resources, Cooperative Research Units, Great Lakes Science Center, Ecosystems, Water Resources, , Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Geology, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, United States of America, Oceans, Pacific Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Virginia, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Astrogeology Science Center, Natural Hazards, , , Natural Hazards, Pennsylvania Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Energy & Wildlife, United States of America, Cooperative Research Units, Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Geology, Eastern Mineral and Environmental Resources Science Center, Region 1: North Atlantic-Appalachian, United States of America, Core Science Systems, Science Analytics and Synthesis (SAS), United States of America, Florence Bascom Geoscience Center, Land Change Science Program, Region 1: North Atlantic-Appalachian, United States of America, Cooperative Research Units, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Alaska Science Center, Ecosystems, Region 11: Alaska, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Cooperative Research Units, Great Lakes Science Center, Ecosystems, Western Ecological Research Center, Ecosystems, Northeast Climate Adaptation Science Center, Land Resources, Region 1: North Atlantic-Appalachian, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Western Ecological Research Center, Ecosystems, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Chile, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Sage-grouse & Sagebrush Ecosystem, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Global Seismographic Network, Region 7: Upper Colorado Basin, New Mexico, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Astrogeology Science Center, Natural Hazards, , , Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Western Ecological Research Center, Ecosystems, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Northern Prairie Wildlife Research Center, Ecosystems, Land Change Science Program, United States of America, Water Resources, , Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Alaska Science Center, Ecosystems, Region 11: Alaska, Cooperative Research Units, Water Resources, , Pacific Coastal and Marine Science Center, Cooperative Research Units, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Change Science Program, United States of America, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, , Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Arizona Water Science Center, Water Resources, , United States of America, Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Upper Midwest Environmental Sciences Center, Ecosystems, Oregon Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Cooperative Research Units, Water Resources, United States of America, New Jersey Water Science Center, Water Resources, Region 1: North Atlantic-Appalachian, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, Water Resources, Energy & Wildlife, United States of America, Reston Biogeochemical Processes in Groundwater Laboratory, Colorado Water Science Center, Ecosystems, Region 7: Upper Colorado Basin, United States of America, Water, Arizona Water Science Center, Water Resources, Toxic Substances Hydrology Program, , Arizona, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Biology and Ecosystems, California Water Science Center, Water Resources, California, United States of America, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Florida, Northern Prairie Wildlife Research Center, Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Sage-grouse & Sagebrush Ecosystem, , United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Climate Adaptation Science Centers, Land Resources, Climate Adaptation Science Centers, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Wildlife Program, South Atlantic Water Science Center (SAWSC), Water Resources, Land Change Science Program, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), United States of America, Columbia Environmental Research Center, Water Resources, Energy & Wildlife, United States of America, Reston Biogeochemical Processes in Groundwater Laboratory, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Western Ecological Research Center, Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease
View Citation
Adams, M.J., Harris, M.C., and Grear, D.A., 2017, Early action to address an emerging wildlife disease: U.S. Geological Survey Fact Sheet 2017-3013, 2 p., https://doi.org/10.3133/fs20173013.
Year Published: 2013
Species data: National inventory of range maps and distribution models
The Gap Analysis Project (GAP) produces data and tools that help meet critical national challenges such as biodiversity conservation, renewable energy development, climate change adaptation, and infrastructure investment. The GAP species data includes vertebrate range maps and distribution models for the continental United States, as well as...
Gergely, Kevin J.; McKerrow, AlexaAttribution: Core Science Systems, Gap Analysis Project, Science Analytics and Synthesis (SAS), United States of America
View Citation
Species data: national inventory of range maps and distribution models; 2013; FS; 2013-3087; Gergely, Kevin J.; McKerrow, Alexa
Year Published: 2012
The state of amphibians in the United States
More than 25 years ago, scientists began to identify unexplained declines in amphibian populations around the world. Much has been learned since then, but amphibian declines have not abated and the interactions among the various threats to amphibians are not clear. Amphibian decline is a problem of local, national, and international scope that can...
Muths, E.; Adams, M.J.; Grant, E.H.C.; Miller, D.; Corn, P.S.; Ball, L.C.View Citation
The state of amphibians in the United States; 2012; FS; 2012-3092; Muths, E.; Adams, M. J.; Grant, E. H. C.; Miller, D.; Corn, P. S.; Ball, L. C.
Year Published: 2005
Amphibian Research and Monitoring Initiative (ARMI): A successful start to a national program in the United States
Most research to assess amphibian declines has focused on local-scale projects on one or a few species. The Amphibian Research and Monitoring Initiative (ARMI) is a national program in the United States mandated by congressional directive and implemented by the U.S. Department of the Interior (specifically the U.S. Geological Survey, USGS)....
Muths, Erin; Jung, Robin E.; Bailey, Larissa L.; Adams, M.J.; Corn, P. Stephen; Dodd, C. Kenneth; Fellers, Gary M.; Sadinski, Walter J.; Schwalbe, Cecil R.; Walls, Susan C.; Fisher, Robert N.; Gallant, Alisa L.; Battaglin, William A.; Green, D. EarlAttribution: Fort Collins Science Center, National Wildlife Health Center, Forest and Rangeland Ecosystem Science Center (FRESC), Wetland and Aquatic Research Center, Ecosystems, Environmental Health, Toxic Substances Hydrology Program, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 4: Mississippi Basin
View Citation
Amphibian Research and Monitoring Initiative (ARMI): a successful start to a national program in the United States; 2005; Article; Journal; Applied Herpetology; Muths, E.; Jung, R.E.; Bailey, L.L.; Adams, M.J.; Corn, P.S.; Dodd, C.K., Jr.; Fellers, G.M.; Sadinski, W.J.; Schwalbe, C.R.; Walls, S.C.; Fisher, R.N.; Gallant, A.L.; Battaglin, W.A.; Green, D.E.
Year Published: 2004
Use of amphibians as indicators of ecosystem restoration success
No abstract available at this time
Rice, Kenneth G.; Mazzotti, FrankAttribution: Wetland and Aquatic Research Center, Ecosystems, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 4: Mississippi Basin
View Citation
Use of amphibians as indicators of ecosystem restoration success; 2004; FS; 2004-3106; Rice, Kenneth G.; Mazzotti, Frank
Date published: March 6, 2019
New Species Habitat Distribution Maps Now Support Conservation Planning at a National Scale
A new dataset of habitat distribution for terrestrial vertebrate species in the conterminous United States is now available from the USGS.
Date published: December 13, 2016
Saving Salamanders: Vital to Ecosystem Health
Amphibians—the big-eyed, swimming-crawling-jumping-climbing group of water and land animals that includes frogs, toads, salamanders and worm-like caecilians—are the world’s most endangered vertebrates.
Date published: September 27, 2016
Newt News: Deadly Fish Disease Discovered in Salamanders
Attribution: Ecosystems, National Wildlife Health Center
Date published: May 23, 2016
New Research Confirms Continued, Unabated and Large-Scale Amphibian Declines: Local Action Key to Reversing Losses
New U.S. Geological Survey-led research suggests that even though amphibians are severely declining worldwide, there is no smoking gun – and thus no simple solution – to halting or reversing these declines.
Date published: February 22, 2016
Deadly Amphibian Fungus Abroad Threatens Certain U.S. Regions
The areas of the United States that are most at risk of a potentially invasive salamander fungus are the Pacific coast, the southern Appalachian Mountains and the mid-Atlantic regions, according to a recently published U.S. Geological Survey report.
Date published: January 20, 2016
Invasive Amphibian Fungus Could Threaten US Salamander Populations
A deadly fungus causing population crashes in wild European salamanders could emerge in the United States and threaten already declining amphibians here, according to a report released today by the U.S. Geological Survey.
Attribution: Core Science Systems, National Wildlife Health Center
Date published: March 29, 2000
New USGS Research Shows How Land Use Affects Amphibians
New USGS research shows that rural areas and farms may be friendlier to frogs and toads than urban areas. Dr. Melinda Knutson, a conservation scientist with the U.S. Geological Survey, said the research on frog and toad populations in two Midwestern states shows that frog and toad abundance and species richness were low in urban areas but near normal in agricultural areas.
September 28, 2017
2017 September Evening Public Lecture — What's in a species name?
Title: What's in a species Name?: How wildlife management relies on modern systematics research and museum collections
* What have museum collections taught us about invasive diseases?
* When is an endangered species not a species?
* How can birds in a museum help protect airline passengers?
* How do geology and biology govern what species we find on
Attribution: Patuxent Wildlife Research Center
December 31, 2016
Chinese Firebelly Newt
A Chinese firebelly newt (Cynops orientalis), the first salamander species found to be infected with the spring viraemia of carp virus.
Attribution: Ecosystems, National Wildlife Health Center
December 15, 2016
Northern leopard frog in Glen Canyon
Northern leopard frog in Glen Canyon.
Attribution: Southwest Biological Science Center
September 27, 2016
Eft stage of red-spotted newt
The eft stage of a red-spotted newt.
Attribution: Ecosystems
December 31, 2014
An invasive American bullfrog with tracking device.
An invasive American bullfrog with tracking device.
December 31, 2014
Green Tree Frog
This green tree frog (Hyla cinerea) sits on the lip of a pitcher plant in a bog in Alabama. The frog was down in the pitcher plant, but moved up to rest on its edge as the photographer approached.
Attribution: South Atlantic Water Science Center (SAWSC)
July 31, 2013
Weighing a Toad
USGS technician weighing a Yosemite toad in the field.
...Attribution: Western Ecological Research Center
July 12, 2010
Frog in Hiding
Frog in hiding along the Sheyenne River southeast of Maddock, North Dakota. Photograph taken during a bioassessment of the area.
June 30, 2010
Evening Frog Calls
An impressive chorus of frogs recorded at 9:00 pm on July 1, 2010 at Lake Ramsey Savannah State Wildlife Management Area near Covington, LA. Over the constant staccato "machine gun" call of the Pinewoods Treefrog (Hyla femoralis) you can hear the repetitive nasal "trill" of the Cope's Gray Treefrog (Hyla chrysoscelis) and the frequent sheep-like bleats of the Eastern
December 31, 2002
USGS Scientist Mark Roth listening to frog calls.
USGS Scientist Mark Roth listening to frog calls. Coolecting frog calls allows scientists to determine distribution of species.