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Chronic wasting disease (CWD) is an emerging infectious disease that is fatal to free-ranging and captive animals in Cervidae (the deer family; referred to as “cervids”). Affected animals include deer, elk, moose, and reindeer.

A brook floater filter feeding as it is anchored into the sediment of a stream bottom. Habitat loss is a long-recognized problem for many endangered species, and the brook floater is no exception. In-stream alterations that change flow and alter sediment loads can affect downstream locations where freshwater mussels live.

Matt Kauffman, Unit Leader, USGS Wyoming Cooperative Fish and Wildlife Research Unit, second from left, works with Wyoming Game and Fish Department and University of Wyoming collaborators to release an elk fitted with a global positioning system (GPS) tracking collar.

Shovelnose sturegon.

Andrena spp. seemingly getting a piggyback ride from a bumblebee (Bombus spp.). Researcher was holding the flower on private land in Macon County.

The center of the composite flower looks like a "landing zone" and has evolved to guide pollinators to its nectar/pollen.

Fruits of Her Labor: the flower on the left has been pollinated and the fruit is developing, but the flower on the right is still being pollinated, highlighting the importance of bees to humanity's food resources. 

Ongoing camera monitoring efforts in Southern Arizona to monitor wildlife for the goal of detecting endangered jaguars and ocelots have covered 20 mountain ranges, off and on, from 2012 to 2019.

Ongoing camera monitoring efforts in Southern Arizona to monitor wildlife for the goal of detecting endangered jaguars and ocelots have covered 20 mountain ranges, off and on, from 2012 to 2019.

Ongoing camera monitoring efforts in Southern Arizona to monitor wildlife for the goal of detecting endangered jaguars and ocelots have covered 20 mountain ranges, off and on, from 2012 to 2019.

USGS researchers at the New York Cooperative Fish and Wildlife Research Unit are using trail cameras to track bobcats, black bears, and coyotes across New York. The researchers created an online database where the public can report wildlife sightings.

The dam impounding Merwin Reservoir on the Lewis River, a tributary of the lower Columbia River, has blocked salmon passage for decades.

The dam impounding Yale Reservoir on the Lewis River, a tributary of the lower Columbia River.

Researchers at the Wyoming Cooperative Fish and Wildlife Research Unit rely on field work, data collection, and reliable field equipment for most research projects in Wyoming.

Purse seine sampling for juvenile salmon offshore of the Seattle waterfront during a critical growth period that determines overall survival to adulthood for Puget Sound Chinook Salmon- a key element of the Salish Sea Marine Survival Project through the Washington Cooperative Fish and Wildlife Research Unit.

Scientists with the USGS Utah Cooperative Fish and Wildlife Research Unit are leading research on Utah’s native fish, the Bonneville cutthroat trout, a fish feared extinct in the 1970s. Researchers have monitored for fish abundance, density, distribution, size and age for nearly two decades.

Antelope walking in a grassy field.

Several bison laying and eating in a grassy field in Custer State Park, SD.

Throughout Hawaii, fishponds are considered by their local communities as important cultural touchstones, a source of local, sustainably produced food, and an important component to the development of community-based management for nearshore fisheries.

Hawaiian fishponds are important cultural and economic resources for native Hawaiians as they are an important component of a sophisticated, integrated food production system. However, changing demographics and systems of land ownership result in declines in the use and upkeep of Hawaiian fishponds throughout the 19th century.

Hawaiian fishponds were important cultural and economic resources for native Hawaiians as they were an important component of a sophisticated, integrated food production system. However, changing demographics and systems of land ownership resulted in a decline in the use and upkeep of Hawaiian fishponds throughout the 19th century.