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Cooperative Research Units

Established in 1935 at Iowa State University, our mission is our hallmark: work with University students to develop the conservation workforce, help decision-makers make complex conservation decisions, and to provide technical assistance between natural resource agencies and universities. We support 43 units located in 41 States, at 44 host universities. Our Program Office is in Reston, Virginia.

News

U.S. Geological Survey Pollinator Science Strategy, 2025–35—A Review and Look Forward

U.S. Geological Survey Pollinator Science Strategy, 2025–35—A Review and Look Forward

Scientists with the North American Bat Monitoring Program (NABat) coauthor new, more comprehensive method for estimating bat species distributions and trends over time

Scientists with the North American Bat Monitoring Program (NABat) coauthor new, more comprehensive method for estimating bat species distributions and trends over time

A novel method for estimating pathogen presence, prevalence, load, and dynamics at multiple scales

A novel method for estimating pathogen presence, prevalence, load, and dynamics at multiple scales

Publications

Sustainability trade-offs across modeled floating solar waterscapes of the Northeastern United States Sustainability trade-offs across modeled floating solar waterscapes of the Northeastern United States

Expansion of floating photovoltaic (FPV) solar systems provides a low-conflict renewable energy option to help mitigate climate change while sparing land, but potential sustainability trade-offs remain unquantified. We compare the technical potential of maximum FPV deployment to address the climate crisis with FPV-buildout scenarios that prioritize biodiversity and social values across...
Authors
Adam Gallaher, Elizabeth L. Kalies, Steven Mark Grodsky

U.S. Geological Survey Pollinator Science Strategy, 2025–35—A Review and Look Forward U.S. Geological Survey Pollinator Science Strategy, 2025–35—A Review and Look Forward

This “U.S. Geological Survey Pollinator Science Strategy, 2025–35—A Review and Look Forward” (“Pollinator Science Strategy”) describes the science vision of the U.S. Geological Survey (USGS) to support management, conservation, and policy decisions on animal pollinators and their habitats. As the science arm of the Department of the Interior (DOI), the USGS has a primary role in...
Authors
Clint R.V. Otto, Tabitha A. Graves, Desi Robertson-Thompson, Ian Pearse, Wayne E. Thogmartin, Caroline Murphy, Lisa Webb, Sam Droege, Melanie Steinkamp, Ralph Grundel

The Grouse & Grazing Project: Effects of cattle grazing on demographic traits of greater sage-grouse The Grouse & Grazing Project: Effects of cattle grazing on demographic traits of greater sage-grouse

Greater sage-grouse (Centrocercus urophasianus) were once widespread within sagebrush -grassland ecosystems of western North America, but populations have declined since the mid-1960s. Though sage-grouse were not listed as threatened or endangered under the Endangered Species Act (ESA), when examined in 2015, they remain a species of interest and concern. Roughly half of the sage-grouse...
Authors
Courtney J. Conway, Cody A. Tisdale, Karen L. Launchbaugh, Bryan S. Stevens, Grace E. Overlie, Sanford D. Eigenbrode, Paul D. Makela, Shane B. Roberts

Science

Species We Study: Pollinators

Ecosystems—whether agricultural, urban, or natural—depend on pollinators, great and small. Pollinators in the form of bees, birds, butterflies, bats, and even moths provide vital, but often invisible services, from contributing to biodiverse terrestrial wildlife and plant communities to supporting healthy watersheds. Pollinator declines worldwide have been noted as land-use and climate changes...
Species We Study: Pollinators

Species We Study: Pollinators

Ecosystems—whether agricultural, urban, or natural—depend on pollinators, great and small. Pollinators in the form of bees, birds, butterflies, bats, and even moths provide vital, but often invisible services, from contributing to biodiverse terrestrial wildlife and plant communities to supporting healthy watersheds. Pollinator declines worldwide have been noted as land-use and climate changes...
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Powering Progress: How Science Can Fuel the Energy Resources Life Cycle

Energy is essential to modern life, and accessing it involves a complex lifecycle, from resource discovery to extraction, use, and eventual remediation and reclamation. The USGS Ecosystems Mission Area supports this process by conducting research and providing scientific insights to guide decision-making at each stage. By collaborating with resource management agencies and stakeholders, we analyze...
Powering Progress: How Science Can Fuel the Energy Resources Life Cycle

Powering Progress: How Science Can Fuel the Energy Resources Life Cycle

Energy is essential to modern life, and accessing it involves a complex lifecycle, from resource discovery to extraction, use, and eventual remediation and reclamation. The USGS Ecosystems Mission Area supports this process by conducting research and providing scientific insights to guide decision-making at each stage. By collaborating with resource management agencies and stakeholders, we analyze...
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Fishing and Hunting

This page is a work in progress and showcases fishing and hunting as a way of life, a food source, and recreational opportunity for millions of Americans. The management of fish and wildlife populations for the benefit of current and future generations is the foundation of our Nation’s conservation heritage. We help to inform decisions through a variety of actions, from the development and...
Fishing and Hunting

Fishing and Hunting

This page is a work in progress and showcases fishing and hunting as a way of life, a food source, and recreational opportunity for millions of Americans. The management of fish and wildlife populations for the benefit of current and future generations is the foundation of our Nation’s conservation heritage. We help to inform decisions through a variety of actions, from the development and...
Learn More

Multimedia

Researchers tag a pronghorn
Researchers tag a pronghorn
Researchers tag a pronghorn
Researchers learning feather identification
Researchers learning feather identification
Researchers learning feather identification
Chris Pullano and Jenna Ruoss holding recently tagged female pallid sturgeon
Chris Pullano and Jenna Ruoss holding recently tagged female pallid sturgeon
Chris Pullano and Jenna Ruoss holding recently tagged female pallid sturgeon
Two researchers holding freshwater turtles
Researchers holding freshwater turtles
Researchers holding freshwater turtles
Researcher is holding a freshwater turtle
Researcher is holding a freshwater turtle
Researcher is holding a freshwater turtle
Denil Fishway
Denil fishway
Denil fishway
Westslope cutthroat trout
Westslope cutthroat trout
Westslope cutthroat trout
Westslope cutthroat trout
Westslope cutthroat trout
Westslope cutthroat trout
nature-like fishway on the yellowstone river
Nature-like fishway on the Yellowstone River
Nature-like fishway on the Yellowstone River
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