Images

Buildings and trees on a hill.

Distant view of hills and plains dotted with buildings.

View of urban landscape and farms from the top of a hill.

Phragmites australis invading a Great Lakes coastal wetland. This tall wetland grass was introduced from Europe in the early 19th century and aggressively displaces native vegetation causing plant diversity to decline and critical habitat for fish and other wildlife to be altered.

South Fork of the Shenandoah River with trees and mountain in background.

Southern Virginia farm of Christmas trees of various types.

Libellula vibrans at rest on a blade of grass.

Typical early establishing species in a prairie reconstruction planted with a low-diversity seed mix. 

Juvenile Chinook salmon monitoring below the The Dalles Dam on the Columbia River.

Newly hatched Killdeer young and unhatched egg in nest bowl found on Lake Sakakawea, North Dakota

Image of Upland Sandpiper fledgling taken during Breeding Bird Surveys in Day County, South Dakota.

Photographer Tad Pfeffer capturing images of Columbia Glacier in Prince William Sound, Alaska. He is looking down-glacier towards the ice front, which faces open water in the fjord. This open water is extremely rare, and has not happened again since 2005. The fjord is typically covered with iceberg debris, called mélange.

Emerald Lake is at maximum depth levels in the summer, when snowmelt from surrounding peaks feeds the lake.

Mojave Desert Tortoise found in Piute Valley in Clark County, Nevada, in
2005

Mountain big sagebrush - or Artemisia tridentata ssp. vaseyana - is a sub-species of big sagebrush that is found in primarily at higher elevation and colder, drier sites between the Rocky Mountains and the Cascades and Sierra Nevada.

A Vermont Unit researcher outfits a captured bobcat with a lightweight GPS collar that will record its daily movements.The collar will provide information on bobcat home range size, habitat use, and movements.

A Vermont Unit researcher outfits a captured bobcat with a lightweight GPS collar that will record its daily movements.The collar will provide information on bobcat home range size, habitat use, and movements.

Hermit thrushes are a songbird species that was strongly affected by plant community changes in mountains because of reduced snowpack and cascading ecological effects, according to a USGS Montana Cooperative Wildlife Research Unit study.

Scenic view of rock formation and coast line.

Coastal view showing rocks and coast line.

Shoreline view with snow-topped mountains in background.