Images

Wetlands Reserve Program site in Natchitoches Parish, Louisiana.  Ten years ago, this landowner worked with the USDA Natural Resources Conservation Service through the Wetlands Reserve Program to design and construct this slough as part of a plan to restore this field’s natural wetland hydrology.

Two researchers deploying a fishing trawl into Lake Superior while aboard the USGS GLSC's R/V Kiyi

2004 Chevak banding crew with four goose species. From left to right: Black Brandt, Emperor Goose, White-fronted Goose, and Cackling Goose.

IGBST researchers are very careful to keep the bear under shade and protected from the elements while they collect biological data.

USGS scientists return from an alpine ecosystem study site in Glacier National Park where they are researching and monitoring potential impacts of climate change on mountain ecosystems.

A massive forest die-off is projected to occur more frequently in the Southwest. Piñon pines, normally evergreen, have reddish-brown foliage in October 2002 (left). By May 2004 (right), the dead piñon pines have lost all their needles, exposing gray trunks and branches. The photos were taken from the same vantage point near Los Alamos, N.M.

Scientists at the USGS Upper Midwest Environmental Sciences Center view young freshwater mussels through miscroscopes. During laboratory tests, USGS scientists and partners found that the heart and growth rates of some species of young freshwater mussels declined as a result of elevated water temperatures, and many died.

This image of live silver carp larvae was taken with a microscope camera at the USGS Columbia Environmental Research Center. Asian carp are invasive species that could pose substantial environmental risks and economic impacts if they become established.

These juvenile silver carps are used to find potential physical, biological or chemical controls as part of an integrated pest management approach for natural resource managers.

Asian carp are invasive species that could pose substantial environmental risks and economic impacts if they become established.

This image shows an Upper Mississippi River marina covered by excessive duckweed.

A photomicrograph depicting the siliceous tests of ten species of marine radiolarians. Upon death, their tests can form siliceous marine sediments known as radiolarian ooze.

USGS scientist Jimmy Hopkins takes a streamflow measurement on the Sabine River on March 12 near Bon Weir, Texas.

A view of the Grand Canyon, with the Great Unconformity visible. Credit: Alex Demas, USGS.

A USGS biological science technician releases an adult golden eagle (Aquila chrysaetos) near Barrett Reservoir in southern California.

Location: Near Barrett Reservoir, San Diego County, California. Photo provided courtesy of photographer. Contact photographer for use.

A USGS biological science technician holds an adult golden eagle (Aquila chrysaetos) ready for release. The USGS uses solar-powered GPS tags and special 3-D mapping techniques to track the eagles' movements across the landscape.

A USGS biological science technician holds an adult golden eagle (Aquila chrysaetos) ready for release. The USGS uses solar-powered GPS tags and special 3-D mapping techniques to track the eagles' movements across the landscape.

Field training on well inventory and collection of water-level data at a non-flowing well near Yeghegnavan, Armenia, near the Armenia/Turkey/Iran border. Mt. Ararat is in background.

Mark Anderson, Director of the USGS South Dakota Water Science Center, demonstrates how to collect a stable isotope sample from a flowing well near Sis, Armenia.

The growth of aquaculture to raise trout, sturgeon and other cold-water fish has increased withdrawals of critical groundwater in the Ararat Basin of Armenia. The USGS is working with partners, including USAID, to develop scientific tools for water-resource managers to understand and predict consequences of management decisions in Armenia.

Field training on how to measure water level using a pressure gage for a flowing well in Sis, Armenia.

A monarch butterfly (Danaus plexippus) resting and sunning at an overwintering site in the Piedra Herrada Monarch Butterfly Sanctuary in Mexico. This individual is a male, identifiable by the black spot on each hindwing.