USGS conducts a health assessment on a mantee in Crystal River, Florida.
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USGS conducts a health assessment on a mantee in Crystal River, Florida.
USGS conducts a health assessment on a mantee in Crystal River, Florida.
USGS conducts a health assessment on a mantee in Crystal River, Florida.
USGS conducts a health assessment on a mantee in Crystal River, Florida.
USGS conducts a health assessment on a mantee in Crystal River, Florida.
Eastern tiger salamanders are on the move! This one was spotted crossing the road at St. Croix Wetland Management District in Wisconsin. Tiger salamanders mostly eat small insects and worms.
Photo by Caitlin Smith/USFWS.
Eastern tiger salamanders are on the move! This one was spotted crossing the road at St. Croix Wetland Management District in Wisconsin. Tiger salamanders mostly eat small insects and worms.
Photo by Caitlin Smith/USFWS.
Invasive black and white tegu lizards (Salvator merianae). USGS is working on development of tools for the detection and capture of invasive reptiles in Florida.
Invasive black and white tegu lizards (Salvator merianae). USGS is working on development of tools for the detection and capture of invasive reptiles in Florida.
A Chinese firebelly newt (Cynops orientalis), the salamander species recently found to be infected with the spring viraemia of carp virus, or SVCV.
A Chinese firebelly newt (Cynops orientalis), the salamander species recently found to be infected with the spring viraemia of carp virus, or SVCV.
A Chinese firebelly newt (Cynops orientalis), the first salamander species found to be infected with the spring viraemia of carp virus.
A Chinese firebelly newt (Cynops orientalis), the first salamander species found to be infected with the spring viraemia of carp virus.
Dissected guano pellet showing antennae, eyes, and body fragments of midges.
Dissected guano pellet showing antennae, eyes, and body fragments of midges.
USGS and other scientists have studied in-depth alligator populations in Florida and Louisiana, but basic ecological knowledge is lacking for populations at the northern edge of their range.
USGS and other scientists have studied in-depth alligator populations in Florida and Louisiana, but basic ecological knowledge is lacking for populations at the northern edge of their range.
South Carolina alligators occupy a patchwork of diverse habitats, including rivers, lakes, wooded swamps, tidal marshes, and impounded freshwater wetlands. As a mobile, opportunistic predator, alligators seasonally adjust their habitat use for feeding.
South Carolina alligators occupy a patchwork of diverse habitats, including rivers, lakes, wooded swamps, tidal marshes, and impounded freshwater wetlands. As a mobile, opportunistic predator, alligators seasonally adjust their habitat use for feeding.
Reports of golden eagle mortality linked to wind energy facilities are cause for concern especially when coupled with the knowledge that golden eagles move great distances between breeding and wintering areas. Mortalities at a particular wind energy facility can consequently affect breeding populations of golden eagles at local and continent-wide scales.
Reports of golden eagle mortality linked to wind energy facilities are cause for concern especially when coupled with the knowledge that golden eagles move great distances between breeding and wintering areas. Mortalities at a particular wind energy facility can consequently affect breeding populations of golden eagles at local and continent-wide scales.
Frosted flatwoods salamander in St. Marks National Wildlife Refuge, Florida
Frosted flatwoods salamander in St. Marks National Wildlife Refuge, Florida
Scientists sample a rough-skinned newt for the fungal pathogen Batrachochytrium salamandrivorans, or Bsal, at a pond near Portland, Oregon. Bsal is decimating wild salamander populations in Europe and could emerge in the U.S. thro
Scientists sample a rough-skinned newt for the fungal pathogen Batrachochytrium salamandrivorans, or Bsal, at a pond near Portland, Oregon. Bsal is decimating wild salamander populations in Europe and could emerge in the U.S. thro
This auger is used to collect 1 meter deep soil cores for a carbon budget study associated with the SageSTEP project. SageSTEP is a long-term, multi-disciplinary experiment evaluating sagebrush restoration methods in the Great Basin.
This auger is used to collect 1 meter deep soil cores for a carbon budget study associated with the SageSTEP project. SageSTEP is a long-term, multi-disciplinary experiment evaluating sagebrush restoration methods in the Great Basin.
A Louisiana black bear and her cubs up in a tree. USGS science on population demographics, population viability, and relocation efforts were used to inform the 2016 USFWS decision to remove the species from the Endangered Species List due to recovery.
A Louisiana black bear and her cubs up in a tree. USGS science on population demographics, population viability, and relocation efforts were used to inform the 2016 USFWS decision to remove the species from the Endangered Species List due to recovery.
Native and invasive plants in desert southwest.
Native and invasive plants in desert southwest.
Water sampling on the pontoon of a seaplane in Lake Clark National Park, Alaska.
Water sampling on the pontoon of a seaplane in Lake Clark National Park, Alaska.
Turbid glacial runoff in roaring river, surrounded by mountains in Lake Clark National Park, Alaska.
Turbid glacial runoff in roaring river, surrounded by mountains in Lake Clark National Park, Alaska.
Person taking data in a healthy dryland grassland with dark biocrusts between bunchgrasses and cacti in Utah.
Person taking data in a healthy dryland grassland with dark biocrusts between bunchgrasses and cacti in Utah.
The eagle in the foreground with the wide white tail band is a golden eagle. The other eagles are two adult and one Basic II bald eagles.
The eagle in the foreground with the wide white tail band is a golden eagle. The other eagles are two adult and one Basic II bald eagles.
Student volunteers are trained to scan historic library materials. The materials can be complex, consisting of multiple parts.
Student volunteers are trained to scan historic library materials. The materials can be complex, consisting of multiple parts.