A USGS grizzly bear researcher snapped this picture of a mother grizzly bear and her cub in Yellowstone National Park. Adult females are the most important segment of the grizzly bear populations because they are the reproductive engine.
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Mother grizzly and cub at Gibbon River, Yellowstone National Park
A USGS grizzly bear researcher snapped this picture of a mother grizzly bear and her cub in Yellowstone National Park. Adult females are the most important segment of the grizzly bear populations because they are the reproductive engine.
A female Agassiz's desert tortoise at Joshua Tree National Park
A female Agassiz's desert tortoise at Joshua Tree National Park lounges in the entrance of her burrow, wearing a USGS radio.
A female Agassiz's desert tortoise at Joshua Tree National Park lounges in the entrance of her burrow, wearing a USGS radio.
Close-up of biocrust - lichen
Biological soil crusts, or biocrusts, are lichens, mosses, and cyanobacteria that grow on the soil surface and are common in the spaces between native plants in arid and semi-arid systems. Biocrusts reduce soil erosion, contribute to nutrient and water cycling, and reduce evaporation and invasion by exotic plants.
Biological soil crusts, or biocrusts, are lichens, mosses, and cyanobacteria that grow on the soil surface and are common in the spaces between native plants in arid and semi-arid systems. Biocrusts reduce soil erosion, contribute to nutrient and water cycling, and reduce evaporation and invasion by exotic plants.
Cattle Grazing at Sunset in Montana
Cattle graze on a ranch in western Montana.
Cattle graze on a ranch in western Montana.
Elk Feedgrounds
Elk grazing at a feedground in Wyoming.
Elk grazing at a feedground in Wyoming.
Blue Shiner, Cyprinella caerulea
Blue Shiner, Cyprinella caerulea
Blue Shiner, Cyprinella caerulea
Interpretive signage for USGS Western Fisheries Research Center Pump House
Interpretive signage created by interpretive designer and illustrator Denise Dahn, with murals of USGS Western Fisheries Research Center Pump House created by Jeff Jacobson in background.
Interpretive signage created by interpretive designer and illustrator Denise Dahn, with murals of USGS Western Fisheries Research Center Pump House created by Jeff Jacobson in background.
DDT nearly wiped out these birds, now they’re making a comeback
Washington Post article on the impacts of DDT on birds.
Washington Post article on the impacts of DDT on birds.
Assessment of the Cottrellville Shoreline Restoration Project
USGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.
USGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.
Laysan Albatross with chick in Kauai
Laysan albatross with chick on Kauai, 2016.
Laysan albatross with chick on Kauai, 2016.
Stony Coral Tissue Loss Disease in Biscayne National Park
The Florida Keys reefs have been experiencing a severe disease outbreak from 2014 to present called Stony Coral Tissue Loss Disease (SCTLD).
The Florida Keys reefs have been experiencing a severe disease outbreak from 2014 to present called Stony Coral Tissue Loss Disease (SCTLD).
Chesapeake Bay ospreys are healthy despite toxics in their fish diet
An adult osprey brings a fish to its nestlings at Poplar Island, Maryland. USGS researchers placed game cameras in some osprey nests to identify the types of fish that Chesapeake Bay ospreys are eating, then tested those fish species for toxic chemicals.
An adult osprey brings a fish to its nestlings at Poplar Island, Maryland. USGS researchers placed game cameras in some osprey nests to identify the types of fish that Chesapeake Bay ospreys are eating, then tested those fish species for toxic chemicals.
Albatross Satellite Tracking Study
2007 Research crew for the short-tailed albatross satellite tracking study conducted on Torishima Island, Japan. Front row (left to right): Noboru Nakamura, Hayao Murakami, Paul Sievert, Yuki Watanabe, Fumio Sato. Back row: Miwa Tsuchiya, Robert Suryan.
2007 Research crew for the short-tailed albatross satellite tracking study conducted on Torishima Island, Japan. Front row (left to right): Noboru Nakamura, Hayao Murakami, Paul Sievert, Yuki Watanabe, Fumio Sato. Back row: Miwa Tsuchiya, Robert Suryan.
Canada Goose Research
Matt Reiter, MN Ph.D. student, and Steve, field technician, gathering data near Churchill, MB, Canada for Canada Goose research project.
Matt Reiter, MN Ph.D. student, and Steve, field technician, gathering data near Churchill, MB, Canada for Canada Goose research project.
Red-Shouldered Hawk
Red-shouldered hawk capture. Recently graduated MS student Carlene Henneman working on MN Unit Leader David Anderson’s Red-shouldered hawk project.
Red-shouldered hawk capture. Recently graduated MS student Carlene Henneman working on MN Unit Leader David Anderson’s Red-shouldered hawk project.
Racoon
Ted Simons, Assistant Leader-NC Unit, Arielle Waldstein, MS Student-NC Unit, and Allan O'Connell-Research Wildlife Biologist-USGS Patuxent Wildlife Research Center, with nine raccoons trapped at Cape Lookout National Seashore as part of a study there to evaluate the consequences of predator removal for endangered species management.
Ted Simons, Assistant Leader-NC Unit, Arielle Waldstein, MS Student-NC Unit, and Allan O'Connell-Research Wildlife Biologist-USGS Patuxent Wildlife Research Center, with nine raccoons trapped at Cape Lookout National Seashore as part of a study there to evaluate the consequences of predator removal for endangered species management.
Flathead Catfish
Nebraska Cooperative Fish and Wildlife Research Unit - Nathan Gosch (right; master's student) utilizes a gastroscope to verify that all stomach contents were recovered from a flathead catfish held by Jeff Stittle (undergraduate).
Nebraska Cooperative Fish and Wildlife Research Unit - Nathan Gosch (right; master's student) utilizes a gastroscope to verify that all stomach contents were recovered from a flathead catfish held by Jeff Stittle (undergraduate).
Black Bear
The Oklahoma Unit has been studying population expansion and genetics of black bear in southeastern Oklahoma since 2001. Live capture and hair snares have been used to collect samples; from left to right: field technician, JD Davis and M.S. candidates, Angie Brown and Meredith Magnuson.
The Oklahoma Unit has been studying population expansion and genetics of black bear in southeastern Oklahoma since 2001. Live capture and hair snares have been used to collect samples; from left to right: field technician, JD Davis and M.S. candidates, Angie Brown and Meredith Magnuson.
Trout
Emerald Lake in the High Sierras of Sequoia National Park. Ph.D. Student Luke Ackerman, Ph.D. Student Jennifer Ramsay, and Oregon-Fish Unit Leader Carl Schreck, sampling blood and tissues from trout and taking whole fish for determination of possible effects of airborne contaminants.
Emerald Lake in the High Sierras of Sequoia National Park. Ph.D. Student Luke Ackerman, Ph.D. Student Jennifer Ramsay, and Oregon-Fish Unit Leader Carl Schreck, sampling blood and tissues from trout and taking whole fish for determination of possible effects of airborne contaminants.
Henslow's Sparrow
Katlyn Steinkerchner (undergraduate research technician for PA Coop Unit) is banding a Henslow’s sparrow.
Katlyn Steinkerchner (undergraduate research technician for PA Coop Unit) is banding a Henslow’s sparrow.
Wood Turtle Tracking
Michael Jones, Ph.D. candidate in the Massachusetts unit, tracking the movements of wood turtles in the Connecticut River Valley of Massachusetts.
Michael Jones, Ph.D. candidate in the Massachusetts unit, tracking the movements of wood turtles in the Connecticut River Valley of Massachusetts.