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Filter Total Items: 341
Backpack bird tracking devise
Platform transmitter terminal (PTT) recovered from male osprey.
Platform transmitter terminal (PTT) recovered from male osprey.
Platform transmitter terminal (PTT) recovered from male osprey.

PTT, or platform transmitter terminal, recovered from 22.83 year old male osprey. 

A blue purple bird with dark wings standing on a dead tree, with three holes in tree that are bird nests
Western purple martin nesting on a snag
Western purple martin nesting on a snag
Western purple martin nesting on a snag

A western purple martin on a snag - or dead tree- in western Oregon. Purple martins require snags for nesting.

A western purple martin on a snag - or dead tree- in western Oregon. Purple martins require snags for nesting.

bat with left wing spread open
Examining a bat's wing for white-nose syndrome in Washington
Examining a bat's wing for white-nose syndrome in Washington
Examining a bat's wing for white-nose syndrome in Washington

Researchers examine a bat (Myotis sp.) to test for the fungus that causes white-nose syndrome.

a field at the base of hills with short green grass, in the middle is a perfect square that is brown and missing grass
Experimental herbicide treatment plot in Idaho
Experimental herbicide treatment plot in Idaho
Experimental herbicide treatment plot in Idaho

The Wildcat experimental treatment site in southwest Idaho at the base of the Owyhee Mountains. The brown square was treated with pre-emergent herbicide and is free of cheatgrass, a few native perennial bunchgrasses were able to establish. This image was taken the first Spring after treatment.

The Wildcat experimental treatment site in southwest Idaho at the base of the Owyhee Mountains. The brown square was treated with pre-emergent herbicide and is free of cheatgrass, a few native perennial bunchgrasses were able to establish. This image was taken the first Spring after treatment.

a person pressing a long metal device into the ground, the plot of soil is bare but outside the plot there is green grass
Field technician collecting a soil core
Field technician collecting a soil core
Field technician collecting a soil core

A field technician taking a soil core sample at Wildcat, a field site in southwest Idaho. Scientists are studying the effects of herbicides used to control exotic annual grasses on soil.

A field technician taking a soil core sample at Wildcat, a field site in southwest Idaho. Scientists are studying the effects of herbicides used to control exotic annual grasses on soil.

Epiphytic lichen on a tree in Oregon
Epiphytic lichen on a hardwood tree in Corvallis, Oregon
Epiphytic lichen on a hardwood tree in Corvallis, Oregon
Epiphytic lichen on a hardwood tree in Corvallis, Oregon

The USGS is researching how trees and epiphytic lichens are affected by nitrogen deposition in temperate forests.

The USGS is researching how trees and epiphytic lichens are affected by nitrogen deposition in temperate forests.

sampling equipment on big sagebrush site
Plot 347, point 6, Morley Nelson Snake River NCA
Plot 347, point 6, Morley Nelson Snake River NCA
Plot 347, point 6, Morley Nelson Snake River NCA

Cover photo for Shinneman, D.J., Welty, J.L., Arkle, R.S., Pilliod, D.S., Glenn, N.F., McIlroy, S.K., Halford, A.S., 2018, Fuels guide and database for intact and invaded big sagebrush (Artemisia tridentata) ecological sites—User manual: U.S. Geological Survey Data Series Report 1048, p.

Cover photo for Shinneman, D.J., Welty, J.L., Arkle, R.S., Pilliod, D.S., Glenn, N.F., McIlroy, S.K., Halford, A.S., 2018, Fuels guide and database for intact and invaded big sagebrush (Artemisia tridentata) ecological sites—User manual: U.S. Geological Survey Data Series Report 1048, p.

Idaho/Oregon border stake with person pulling a sled in background
Crossing the Idaho-Oregon border in winter
Crossing the Idaho-Oregon border in winter
Crossing the Idaho-Oregon border in winter

This remote area along the southern Idaho-Oregon border was affected by the 2015 Soda Fire, which burned nearly 400 square miles of sagebrush habitat important to many species of wildlife, as well as federal and private ranchlands.

This remote area along the southern Idaho-Oregon border was affected by the 2015 Soda Fire, which burned nearly 400 square miles of sagebrush habitat important to many species of wildlife, as well as federal and private ranchlands.

Testing for Bsal
Testing for Bsal
Testing for Bsal
Testing for Bsal

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

woman leaning on soil auger
Collecting soil cores for a SageSTEP carbon budget study
Collecting soil cores for a SageSTEP carbon budget study
Collecting soil cores for a SageSTEP carbon budget study

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.

Four eagles around a carcass in the snow. Two are flying. Two are on the ground.
Four eagles on a carcass
Four eagles on a carcass
Four eagles on a carcass

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.

a person standing on a rocky hill holding a radio antenna
Tracking Oregon spotted frogs with radio telemetry
Tracking Oregon spotted frogs with radio telemetry
Tracking Oregon spotted frogs with radio telemetry

USGS scientist Brome McCreary holding a radio telemetry antenna and receiver, tracking Oregon spotted frogs on the Deschutes River in Oregon. This work was part of a study investigating fall movements and overwintering habitat use. 

USGS scientist Brome McCreary holding a radio telemetry antenna and receiver, tracking Oregon spotted frogs on the Deschutes River in Oregon. This work was part of a study investigating fall movements and overwintering habitat use. 

a person standing in tall grass at the edge of a slough holding a radio antenna
Tracking Oregon spotted frogs in the Deschutes River
Tracking Oregon spotted frogs in the Deschutes River
Tracking Oregon spotted frogs in the Deschutes River

USGS scientist Jennifer Rowe using radio telemetry to track Oregon spotted frogs in Dead Slough on the Deschutes River, Oregon. This work was part of a study investigating fall movements and overwintering habitat use.

USGS scientist Jennifer Rowe using radio telemetry to track Oregon spotted frogs in Dead Slough on the Deschutes River, Oregon. This work was part of a study investigating fall movements and overwintering habitat use.

two scientists setting up an experiment in an area dominated by cheatgrass
Setting up a bacterial control experiment on cheatgrass
Setting up a bacterial control experiment on cheatgrass
Setting up a bacterial control experiment on cheatgrass

Scientists are studying several weed suppressive bacteria to see if they can be used as a biological control on invasive exotic grasses, such as cheatgrass.

Scientists are studying several weed suppressive bacteria to see if they can be used as a biological control on invasive exotic grasses, such as cheatgrass.

Wind turbines at the Altamont Pass Wind Farm
Wind turbines at the Altamont Pass Wind Farm
Wind turbines at the Altamont Pass Wind Farm
Wind turbines at the Altamont Pass Wind Farm

The Altamont Pass Wind Far is located in northern California.

close up image of blackened soil with light brown oval shaped seeds
Grass seeds on burned soil
Grass seeds on burned soil
Grass seeds on burned soil

Grass seeds on freshly burned soil at the site of the 2015 Soda Wildfire. Grass seeds were aerially sown to restore native perennial vegetation.

Grass seeds on freshly burned soil at the site of the 2015 Soda Wildfire. Grass seeds were aerially sown to restore native perennial vegetation.

a field of interspersed bunches of tall green grass, surrounded by wire fencing, brown grassy hills in the distance
Experimental plot of native bunchgrasses at the site of the Soda Wildfire
Experimental plot of native bunchgrasses at the site of the Soda Wildfire
Experimental plot of native bunchgrasses at the site of the Soda Wildfire

A plot of bunchgrasses that established after the 2015 Soda Wildfire. The site was treated with herbicide the first fall post-fire, then grasses were drill seeded the subsequent year. A fence was installed to exclude livestock. This approach of combining herbicide, seeding, and grazing treatments is known as layering.

A plot of bunchgrasses that established after the 2015 Soda Wildfire. The site was treated with herbicide the first fall post-fire, then grasses were drill seeded the subsequent year. A fence was installed to exclude livestock. This approach of combining herbicide, seeding, and grazing treatments is known as layering.

Biologist snorkeling during fish survey
Riverscape snorkelers
Riverscape snorkelers
Riverscape snorkelers

Biologists snorkel the Bogachiel River in Washington State to count resident and migratory fish as part of a riverscape survey.

Biologists snorkel the Bogachiel River in Washington State to count resident and migratory fish as part of a riverscape survey.

three scientists preparing to conduct an underwater biological survey
Preparing for underwater biological surveys of the Bogachiel River
Preparing for underwater biological surveys of the Bogachiel River
Preparing for underwater biological surveys of the Bogachiel River

Three USGS scientists prepare to conduct underwater biological surveys of the Bogachiel River, Washington

Three USGS scientists prepare to conduct underwater biological surveys of the Bogachiel River, Washington

Sampling for Bsal
Sampling for Bsal
Sampling for Bsal
Sampling for Bsal

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

Bumble bee on Scarlet Globemallow
Bumble bee on Scarlet Globemallow
Bumble bee on Scarlet Globemallow
Bumble bee on Scarlet Globemallow

To investigate whether insects could be used as bioindicators of climate change, USGS researchers studied insect community composition along an elevation gradient in semi-arid shrublands of eastern Oregon.

To investigate whether insects could be used as bioindicators of climate change, USGS researchers studied insect community composition along an elevation gradient in semi-arid shrublands of eastern Oregon.