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Filter Total Items: 343
aspen in a post-fire seral aspen-conifer stand
Aspen regeneration after stand-replacing fire
Aspen regeneration after stand-replacing fire
Aspen regeneration after stand-replacing fire

Aspen regeneration after stand-replacing fire in a seral aspen-conifer stand in the Jarbidge Mountains, Nevada

Aspen regeneration after stand-replacing fire in a seral aspen-conifer stand in the Jarbidge Mountains, Nevada

A close-up image of a rough-skinned newt's face
Rough-Skinned Newt
Rough-Skinned Newt
Rough-Skinned Newt

A female rough-skinned newt on a trail near Woodpecker Pond, Finley National Wildlife Refuge, OR. 

A female rough-skinned newt on a trail near Woodpecker Pond, Finley National Wildlife Refuge, OR. 

A white bird with long legs and a long beak wading in water
American avocet, Harney Basin
American avocet, Harney Basin
American avocet, Harney Basin

An American avocet wading in a pond near Crane Hot Springs in Oregon. The avocet was observed while conducting research on environmental contaminants in the Great Basin.

An American avocet wading in a pond near Crane Hot Springs in Oregon. The avocet was observed while conducting research on environmental contaminants in the Great Basin.

A black bird with a yellow head perched on tall grass on the shore of a lake
Yellow-headed blackbird perched by Malheur Lake
Yellow-headed blackbird perched by Malheur Lake
Yellow-headed blackbird perched by Malheur Lake

A yellow-headed blackbird perched on the shore of Malheur Lake, a saline lake in Oregon. Malheur Lake is an important habitat for many species of birds.

A yellow-headed blackbird perched on the shore of Malheur Lake, a saline lake in Oregon. Malheur Lake is an important habitat for many species of birds.

Aspen grove in northern Nevada
Aspen grove in northern Nevada
Aspen grove in northern Nevada
Aspen grove in northern Nevada

Aspen grove in northern Nevada

Aspen Forest
Aspen Forest
Aspen Forest
Aspen grove changing color, northern Nevada
Aspen grove changing color, northern Nevada
Aspen grove changing color, northern Nevada
Aspen grove changing color, northern Nevada

Aspen grove changing color, northern Nevada

sub-adult Oregon spotted frog
Anerytherisitic sub-adult Oregon spotted frog
Anerytherisitic sub-adult Oregon spotted frog
Anerytherisitic sub-adult Oregon spotted frog

Anerytherisitic sub-adult Oregon Spotted frog from Dilman Meadows, SW of Bend, Oregon. An anerytherisitic organism has inherited a recessive mutation where they lack red, yellow, and orange pigments. These organisms are usually black, grey, and brown in color.

Anerytherisitic sub-adult Oregon Spotted frog from Dilman Meadows, SW of Bend, Oregon. An anerytherisitic organism has inherited a recessive mutation where they lack red, yellow, and orange pigments. These organisms are usually black, grey, and brown in color.

three people standing in an Idaho sagebrush landscape
Scientists collecting data in Idaho sagebrush
Scientists collecting data in Idaho sagebrush
Scientists collecting data in Idaho sagebrush

USGS scientists collect data for a landscape genetics study in the sagebrush of the Great Basin.

USGS scientists collect data for a landscape genetics study in the sagebrush of the Great Basin.

Rattlesnake Mountain and vegetation
Phlox and Balsamroot flowers near Rattlesnake Mountain
Phlox and Balsamroot flowers near Rattlesnake Mountain
Phlox and Balsamroot flowers near Rattlesnake Mountain

Lower elevation sandy site with phlox and balsamroot flowers with Rattlesnake Mountain in the background

Lower elevation sandy site with phlox and balsamroot flowers with Rattlesnake Mountain in the background

Rough skinned newt in defensive posture
Rough skinned newt in defensive posture, EPA ponds, Corvallis, OR
Rough skinned newt in defensive posture, EPA ponds, Corvallis, OR
Rough skinned newt in defensive posture, EPA ponds, Corvallis, OR

Rough-skinned newt in defensive posture, EPA ponds, Corvallis, OR. Rough-skinned newts produce a powerful neurotoxin as a defense against predators. 

Rough-skinned newt in defensive posture, EPA ponds, Corvallis, OR. Rough-skinned newts produce a powerful neurotoxin as a defense against predators. 

Coastal tailed frog male
Coastal tailed frog male dorsal side, Brush Crk, OR
Coastal tailed frog male dorsal side, Brush Crk, OR
Adult Oregon spotted frog
Adult Oregon spotted frog
Adult Oregon spotted frog

Adult Oregon spotted frog at Dilman Meadows, near Wickiup Reservoir, OR

Adult Oregon spotted frog at Dilman Meadows, near Wickiup Reservoir, OR

winding dirt road through mostly forested hills with one clearcut in the distance
Forest Roads in the Lower North Fork Siletz River Valley
Forest Roads in the Lower North Fork Siletz River Valley
Forest Roads in the Lower North Fork Siletz River Valley

Forest roads running through Bureau of Land Management land in the lower North Fork Siletz River valley in the Mary's Peak District of the northwest Oregon.

Forest roads running through Bureau of Land Management land in the lower North Fork Siletz River valley in the Mary's Peak District of the northwest Oregon.

Image: Brewer's Sparrow Nest
Brewer's Sparrow Nest
Brewer's Sparrow Nest
Brewer's Sparrow Nest

Vacant Brewer's sparrow (Spizella breweri) nest.

Image: Brewer's Sparrow Nest
Brewer's Sparrow Nest
Brewer's Sparrow Nest
Brewer's Sparrow Nest

Vacant Brewer's sparrow (Spizella breweri) nest.

a pond full of grass, clumps of clear eggs with black spots and one adult brown frog are visible
Adult Cascades Frog and Egg Masses in Tipsoo Lake, WA
Adult Cascades Frog and Egg Masses in Tipsoo Lake, WA
Adult Cascades Frog and Egg Masses in Tipsoo Lake, WA

Cluster of egg masses and an adult Cascades frog at Tipsoo Lake, Mt. Rainier National Park, WA. Researchers survey for egg masses in the spring to assess frog distribution, reproductive success, and timing of breeding.

Cluster of egg masses and an adult Cascades frog at Tipsoo Lake, Mt. Rainier National Park, WA. Researchers survey for egg masses in the spring to assess frog distribution, reproductive success, and timing of breeding.

A clear shallow stream with fallen trees on its banks and several large dead trees in the middle of it
Upper Fish Creek in the Umpqua National Forest
Upper Fish Creek in the Umpqua National Forest
Upper Fish Creek in the Umpqua National Forest

The headwaters of Upper Fish Creek watershed in the Umpqua National Forest. Large dead wood creates instream structure that is valuable habitat for aquatic animals.

The headwaters of Upper Fish Creek watershed in the Umpqua National Forest. Large dead wood creates instream structure that is valuable habitat for aquatic animals.

Subalpine meadow near Deer Park campground, Washington
Subalpine meadow - Olympic Peninsula
Subalpine meadow - Olympic Peninsula
Subalpine meadow - Olympic Peninsula

Subalpine meadow near Deer Park campground on the Olympic Peninsula in Washington.

Subalpine meadow near Deer Park campground on the Olympic Peninsula in Washington.