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Cooperative Research Units

Established in 1935, our mission is our hallmark: develop the conservation workforce through university graduate education, and to facilitate science decisions and technical assistance between natural resource agencies and universities. There are 41 units in 39 states, with a National Program Office at the U.S. Geological Survey in Reston, Virginia. 

News

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Michigan State University and USGS team up in state-federal partnership for fishery and wildlife science

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Energy development in migration corridors affects mule deer access to best forage

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Secretary Haaland Announces Progress Toward Conservation and Restoration of Wildlife Corridors and Habitat Connectivity

Publications

Simple statistical models can be sufficient for testing hypotheses with population time series data

Time-series data offer wide-ranging opportunities to test hypotheses about the physical and biological factors that influence species abundances. Although sophisticated models have been developed and applied to analyze abundance time series, they require information about species detectability that is often unavailable. We propose that in many cases, simpler models are adequate for testing hypothe

Estimating Pacific walrus abundance and survival with multievent mark-recapture models

Arctic marine ecosystems are undergoing rapid physical and biological change associated with climate warming and loss of sea ice. Sea ice loss will impact many species through altered spatial and temporal availability of resources. In the Bering and Chukchi Seas, the Pacific walrus Odobenus rosmarus divergens is one species that could be impacted by rapid environmental change, and thus, population

Temporal mismatch in space use by a sagebrush obligate species after large-scale wildfire

The increase in size and frequency of wildfires in sagebrush steppe ecosystems has significant impacts on sagebrush obligate species. We modeled seasonal habitat use by female greater sage-grouse (Centrocercus urophasianus) in the Trout Creek Mountains of Oregon and Nevada, USA, to identify landscape characteristics that influenced sage-grouse habitat selection and to create predictive surfaces of

Science

Stories from the Field

We appreciate hearing from Members of State fish and wildlife agencies, universities, and friends. If you wish to share a story, let us know. Please enjoy our success stories.
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Stories from the Field

We appreciate hearing from Members of State fish and wildlife agencies, universities, and friends. If you wish to share a story, let us know. Please enjoy our success stories.
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Climate

Click the image cards below to learn more about the effects of projected climate trends on humans, fish and wildlife populations, and habitats. Our researchers work with cooperators to better understand potential implications and to reduce uncertainty so that managers can better evaluate future scenarios and management options.
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Climate

Click the image cards below to learn more about the effects of projected climate trends on humans, fish and wildlife populations, and habitats. Our researchers work with cooperators to better understand potential implications and to reduce uncertainty so that managers can better evaluate future scenarios and management options.
Learn More

Decision Science

We host strong decision science programs on University campuses listed below. Understanding cultural, social, and political factors drives decision-making. In other words, what people think matters. One of the key building blocks our program is we actively engage local communities and our research is relevant to the needs of the States, geographic regions, and the Nation. We make available new...
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Decision Science

We host strong decision science programs on University campuses listed below. Understanding cultural, social, and political factors drives decision-making. In other words, what people think matters. One of the key building blocks our program is we actively engage local communities and our research is relevant to the needs of the States, geographic regions, and the Nation. We make available new...
Learn More