Biologists measure a grizzly bear’s paw width.
Images
Images described and linked on this webpage come from a wide variety of USGS science activities and presentations performed by USGS Science Center staff members in the Region 7: Upper Colorado Basin. A search tool is provided to narrow the number of image files shown.
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Measuring the bear's paw
Biologists measure a grizzly bear’s paw width.
At the capture site
At capture sites with road access, biologists drive to a trap with a bear inside to set up for collecting biological data.
At capture sites with road access, biologists drive to a trap with a bear inside to set up for collecting biological data.
Preparing for collection of samples
A biologist prepares to collect biological information from the bear they have captured. Biologists collect hair samples for genetic analysis, weigh the bear, and gather numerous measurements of the body, such as the head, paws, claws, teeth, etc. Overall condition of the bear is assessed as well, including a body fat measurement.
A biologist prepares to collect biological information from the bear they have captured. Biologists collect hair samples for genetic analysis, weigh the bear, and gather numerous measurements of the body, such as the head, paws, claws, teeth, etc. Overall condition of the bear is assessed as well, including a body fat measurement.
Telemetry by air
Once a grizzly bear is radio collared, biologists can track its movements with telemetry via airplane. The IGBST also used the latest telemetry technologies, which allows downloading of GPS data from the radio collar via satellites.
Once a grizzly bear is radio collared, biologists can track its movements with telemetry via airplane. The IGBST also used the latest telemetry technologies, which allows downloading of GPS data from the radio collar via satellites.
Measuring the bear's body length
Biologists measure a grizzly bear’s body length.
Biologists measure a grizzly bear’s body length.
Telemetry by foot
Once a grizzly bear is radio collared, biologists can track its movements with telemetry on foot.
Once a grizzly bear is radio collared, biologists can track its movements with telemetry on foot.
Rio Grande from New Mexico State Road 359, New Mex.
Rio Grande from New Mexico State Road 359, New Mex.North-oriented view of the Rio Grande from New Mexico State Road 359 near Mesilla, N. Mex., February 11, 2016 (photograph by Nicholas R. Glaser, U.S. Geological Survey).
SIR 2016–5011
Rio Grande from New Mexico State Road 359, New Mex.
Rio Grande from New Mexico State Road 359, New Mex.North-oriented view of the Rio Grande from New Mexico State Road 359 near Mesilla, N. Mex., February 11, 2016 (photograph by Nicholas R. Glaser, U.S. Geological Survey).
SIR 2016–5011
Rio Grande at New Mex. State Road 359
North-oriented view of the Rio Grande at New Mexico State Road 359 near Mesilla, N. Mex., February 11, 2016 (photograph by Nicholas R. Glaser, U.S. Geological Survey).
SIR 2016–5011
North-oriented view of the Rio Grande at New Mexico State Road 359 near Mesilla, N. Mex., February 11, 2016 (photograph by Nicholas R. Glaser, U.S. Geological Survey).
SIR 2016–5011
Bear scratch on tree.
When looking for a place to set up a capture location, biologists look for existing bear sign such as scratches on trees and bear scat. Sometimes traps are set in areas that have no obvious bear sign to determine if indeed bears are present.
When looking for a place to set up a capture location, biologists look for existing bear sign such as scratches on trees and bear scat. Sometimes traps are set in areas that have no obvious bear sign to determine if indeed bears are present.
Rio Grande, about 1 mile southwest of Montaño Bridge
Rio Grande, about 1 mile southwest of Montaño BridgeUpstream view of the Rio Grande from a location about 1 mile southwest of the Montaño Bridge. Photograph was taken January 24, 2016, by Nathan Myers.
SIR 2016–5021
Rio Grande, about 1 mile southwest of Montaño Bridge
Rio Grande, about 1 mile southwest of Montaño BridgeUpstream view of the Rio Grande from a location about 1 mile southwest of the Montaño Bridge. Photograph was taken January 24, 2016, by Nathan Myers.
SIR 2016–5021
Rio Grande, about 1 mile southwest of Montaño Bridge, SIR 2016–5021
Rio Grande, about 1 mile southwest of Montaño Bridge, SIR 2016–5021Upstream view of the Rio Grande from a location about 1 mile southwest of the Montaño Bridge. Photograph was taken January 24, 2016, by Nathan Myers.
Rio Grande, about 1 mile southwest of Montaño Bridge, SIR 2016–5021
Rio Grande, about 1 mile southwest of Montaño Bridge, SIR 2016–5021Upstream view of the Rio Grande from a location about 1 mile southwest of the Montaño Bridge. Photograph was taken January 24, 2016, by Nathan Myers.
La Sal Mountain Range
Snow-capped peaks of the La Sal Mountain Range as seen from the Island in the Sky District of Canyonlands National Park. This is one area in the Southwest where biocrust plays an important role.
Snow-capped peaks of the La Sal Mountain Range as seen from the Island in the Sky District of Canyonlands National Park. This is one area in the Southwest where biocrust plays an important role.
A mother grizzly bear and her cub in Yellowstone National Park.
A mother grizzly bear and her cub in Yellowstone National Park.A USGS grizzly bear researcher snapped this picture of a mother grizzly bear and her cub in Yellowstone National Park. Recent research shows that fffspring of grizzly bear mothers with a history of human-bear conflicts are more likely to be involved in human-bear conflicts than offspring of mothers without a history of human-bear conflicts.
A mother grizzly bear and her cub in Yellowstone National Park.
A mother grizzly bear and her cub in Yellowstone National Park.A USGS grizzly bear researcher snapped this picture of a mother grizzly bear and her cub in Yellowstone National Park. Recent research shows that fffspring of grizzly bear mothers with a history of human-bear conflicts are more likely to be involved in human-bear conflicts than offspring of mothers without a history of human-bear conflicts.
The Southern High Plains
The Southern High Plains of New Mexico, Oklahoma, and Texas. USGS conducted a uranium assessment in this region in 2015.
The Southern High Plains of New Mexico, Oklahoma, and Texas. USGS conducted a uranium assessment in this region in 2015.
Grizzly bear caching an elk carcass in Grand Teton National Park
Grizzly bear caching an elk carcass in Grand Teton National ParkA grizzly bear has cached an elk carcass in Grand Teton National Park. Scientists used DNA from hair samples collected from barbed wire to estimate whether the availability of carcasses associated with an elk hunting season resulted in temporary immigration of grizzly bears.
Grizzly bear caching an elk carcass in Grand Teton National Park
Grizzly bear caching an elk carcass in Grand Teton National ParkA grizzly bear has cached an elk carcass in Grand Teton National Park. Scientists used DNA from hair samples collected from barbed wire to estimate whether the availability of carcasses associated with an elk hunting season resulted in temporary immigration of grizzly bears.
Old Faithful Geyser in eruption, Yellowstone National Park
Filtering water for eDNA sample collection.
Filtering water for eDNA sample collection in Yellowstone National Park between Lewis and Shoshone Lakes.
Filtering water for eDNA sample collection in Yellowstone National Park between Lewis and Shoshone Lakes.
Great Salt Lake Receding
Receding Great Salt Lake as seen from causeway
Receding Great Salt Lake as seen from causeway
Kane Springs, San Juan County, Utah Fall 2015
Collecting sample in tall grass at Kane Springs, San Juan County, Utah, Fall 2015.
Collecting sample in tall grass at Kane Springs, San Juan County, Utah, Fall 2015.
South Salt Wash, Emery County, Utah, Fall 2015
South Salt Wash, Emery County, Utah.
Lake Powell, Kane County, Utah, Fall 2015
Collecting sediment traps on Lake Powell.
Collecting sediment traps on Lake Powell.