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.
An ARMI of Many
An ARMI of Many
The USGS Amphibian Research and Monitoring Initiative (ARMI) is an integrated program of research and monitoring studies across the US focused on hydrology, disease, decision support, recovery, and restoration.
A is for Amphibian
A is for Amphibian
The Ecosystems A-Z series highlights some of the work our scientists are leading starting with amphibians.
Amphibian Research
Amphibian Research
Filter Total Items: 28
Reptile and Amphibian Road Ecology
USGS is working with many partners to help reptiles, amphibians and other animals cross roads safely, improving access to essential habitat.
Effects of Saltwater Intrusion on Anuran Occupancy in Big Thicket National Preserve, Texas
WARC researchers sampled anuran populations at sites within Big Thicket National Preserve to explore saltwater intrusion on these populations.
Acoustic Monitoring for Two Rare Frog Species in Northwest Louisiana
WARC researchers are using automated recording units to monitor southern crawfish frogs and Strecker's chorus frogs in Louisiana.
Amphibian Research and Occupancy Modeling in the South-Central Region of the Amphibian Research and Monitoring Initiative (ARMI)
In response to growing public concerns about this loss of biodiversity, the U.S. Congress funded the Amphibian Research and Monitoring Initiative (ARMI), a national program coordinated by the U.S. Geological Survey.
A is for Amphibian
On April 26th, 2021, Department of Interior Secretary Deb Haaland declared May 2 - 8, 2021 as Amphibain Week! This is in In recognition of the vital importance of amphibians (frogs, toads, and salamanders) to the Nation’s public and private lands. Did you know that the USGS Ecosystems Mission Area is the biological research arm of the U.S. Department of the Interior? USGS Ecosystems Mission Area...
Interaction of Environmental Stressors and Batrachochytrium dendrobatidis (Bd) Pathogen Loads on Survival of Green Frogs (Lithobates clamitans)
The U.S. Geological Survey Amphibian Research Monitoring Initiative (ARMI) is using a combination of swabbing, non-lethal tissue sampling, soil and water sampling, and collection of a variety of other environmental variables to determine the relationships between the prevalence and pathogen load of Bd infection and environmental stressors on green treefrog survival.
Capture-Mark-Recapture of Treefrogs at Bayou Teche National Wildlife Refuge
WARC researchers are gathering amphibian data to better understand the impact of natural disasters on treefrog populations and examine post-event processes.
Quantitative and Other Methods
Applying quantitative methods to evaluate ecological hypotheses for wild animal populations is inherently challenging due to the complexity of ecological systems and the sampling process that is used to monitor them.
Agricultural Practices
Environmentally responsible land management has direct and indirect implications for wildlife, water quality, and air quality in terrestrial, aquatic, and marine ecosystems far beyond their extent. Agricultural land use accounts for over 50 percent of the surface area of the contiguous United States. Public recognition that social, aesthetic, and recreational values enhance the traditional uses of...
Oregon Spotted Frog
The Oregon spotted frog ( Rana pretiosa ) is a medium-sized anuran native to the northwestern United States. Body coloration ranges from brown or tan to brick red, usually overlaid with dark, ragged spots. Oregon spotted frogs can be distinguished from other native species by their relatively short hind legs, orange or red wash of color on underside of abdomen and legs, and upturned chartreuse...
Ecology and Conservation of Sensitive Herpetofauna Species
Many species of amphibians and reptiles are declining or facing population threats in the West related to habitat loss, habitat alteration, introduction of non-native species, and other factors. Our work focuses on the status and trends of resident herpetofauna and how to better manage their habitats. Much of the effort is undertaken with cooperators, particularly with other agencies in the...
Declining Amphibians
Amphibian populations world-wide are declining for reasons that include disease, habitat loss, and invasive species. Our research addresses these threats as part of the Amphibian Research and Monitoring Initiative (ARMI), a nationwide, federally funded program. We work with resource managers to provide information that improves understanding of status of amphibians and the implications of...
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.
An ARMI of Many
An ARMI of Many
The USGS Amphibian Research and Monitoring Initiative (ARMI) is an integrated program of research and monitoring studies across the US focused on hydrology, disease, decision support, recovery, and restoration.
A is for Amphibian
A is for Amphibian
The Ecosystems A-Z series highlights some of the work our scientists are leading starting with amphibians.
Amphibian Research
Amphibian Research
Filter Total Items: 28
Reptile and Amphibian Road Ecology
USGS is working with many partners to help reptiles, amphibians and other animals cross roads safely, improving access to essential habitat.
Effects of Saltwater Intrusion on Anuran Occupancy in Big Thicket National Preserve, Texas
WARC researchers sampled anuran populations at sites within Big Thicket National Preserve to explore saltwater intrusion on these populations.
Acoustic Monitoring for Two Rare Frog Species in Northwest Louisiana
WARC researchers are using automated recording units to monitor southern crawfish frogs and Strecker's chorus frogs in Louisiana.
Amphibian Research and Occupancy Modeling in the South-Central Region of the Amphibian Research and Monitoring Initiative (ARMI)
In response to growing public concerns about this loss of biodiversity, the U.S. Congress funded the Amphibian Research and Monitoring Initiative (ARMI), a national program coordinated by the U.S. Geological Survey.
A is for Amphibian
On April 26th, 2021, Department of Interior Secretary Deb Haaland declared May 2 - 8, 2021 as Amphibain Week! This is in In recognition of the vital importance of amphibians (frogs, toads, and salamanders) to the Nation’s public and private lands. Did you know that the USGS Ecosystems Mission Area is the biological research arm of the U.S. Department of the Interior? USGS Ecosystems Mission Area...
Interaction of Environmental Stressors and Batrachochytrium dendrobatidis (Bd) Pathogen Loads on Survival of Green Frogs (Lithobates clamitans)
The U.S. Geological Survey Amphibian Research Monitoring Initiative (ARMI) is using a combination of swabbing, non-lethal tissue sampling, soil and water sampling, and collection of a variety of other environmental variables to determine the relationships between the prevalence and pathogen load of Bd infection and environmental stressors on green treefrog survival.
Capture-Mark-Recapture of Treefrogs at Bayou Teche National Wildlife Refuge
WARC researchers are gathering amphibian data to better understand the impact of natural disasters on treefrog populations and examine post-event processes.
Quantitative and Other Methods
Applying quantitative methods to evaluate ecological hypotheses for wild animal populations is inherently challenging due to the complexity of ecological systems and the sampling process that is used to monitor them.
Agricultural Practices
Environmentally responsible land management has direct and indirect implications for wildlife, water quality, and air quality in terrestrial, aquatic, and marine ecosystems far beyond their extent. Agricultural land use accounts for over 50 percent of the surface area of the contiguous United States. Public recognition that social, aesthetic, and recreational values enhance the traditional uses of...
Oregon Spotted Frog
The Oregon spotted frog ( Rana pretiosa ) is a medium-sized anuran native to the northwestern United States. Body coloration ranges from brown or tan to brick red, usually overlaid with dark, ragged spots. Oregon spotted frogs can be distinguished from other native species by their relatively short hind legs, orange or red wash of color on underside of abdomen and legs, and upturned chartreuse...
Ecology and Conservation of Sensitive Herpetofauna Species
Many species of amphibians and reptiles are declining or facing population threats in the West related to habitat loss, habitat alteration, introduction of non-native species, and other factors. Our work focuses on the status and trends of resident herpetofauna and how to better manage their habitats. Much of the effort is undertaken with cooperators, particularly with other agencies in the...
Declining Amphibians
Amphibian populations world-wide are declining for reasons that include disease, habitat loss, and invasive species. Our research addresses these threats as part of the Amphibian Research and Monitoring Initiative (ARMI), a nationwide, federally funded program. We work with resource managers to provide information that improves understanding of status of amphibians and the implications of...