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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

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

Shorebirds and Roads: How Human-altered Landscapes Influence Shorebird Movements in Alaska

Shorebirds and Roads: How Human-altered Landscapes Influence Shorebird Movements in Alaska

USGS EcoNews - Vol. 6 | Issue 1

Publications

The effect of turbidity on foraging by prerostrum juvenile Paddlefish

ObjectiveA previous study evaluating restoration success of Paddlefish Polyodon spathula suggested that excessive turbidity in lakes and rivers may inhibit foraging by juveniles prior to the development of the rostrum. Although a Paddlefish's rostrum, which contains electroreceptors, helps the fish to locate zooplankton prey, the prerostrum stage lacks many of these electroreceptors...
Authors
Ethan Hood, James M. Long, Daniel E. Shoup, Casey A. Pennock, Andrew R. Dzialowski, Jason D. Schooley

U.S. Geological Survey Cooperative Research Units program

This fact sheet provides a 10-year overview of the U.S. Geological Survey Cooperative Research Units program. It highlights long term accomplishments for the program's mission of applied research, graduate education and technical assistance to the partners.
Authors
Elise R. Irwin, Tess M. McConnell, Donald E. Dennerline, Kevin L. Pope, Jonathan R. Mawdsley

A wetland for all seasons? Evaluating congruence in avian species richness and habitat associations within restored wetlands across the annual cycle

Wetland restoration on agricultural land to enhance wildlife habitat through the Wetland Reserve Easement (WRE) program has substantially increased wetland area within the Lower Mississippi Alluvial Valley (LMAV). Studies assessing avian response to wetland restoration often focus on specific communities during one season such as passerines in spring or waterfowl during winter. However...
Authors
J. Podoliak, Elisabeth B. Webb, D. Hicks

Science

Deep Dive: Sustaining the Rich Economic and Recreational Benefits of the Prairie Pothole Region

The wetlands of the Prairie Pothole Region provide essential benefits to communities and are a premier waterfowl breeding ground. Explore how CASC science is informing the strategic restoration and management of the Prairie Pothole Region in the face of climate change.
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Deep Dive: Sustaining the Rich Economic and Recreational Benefits of the Prairie Pothole Region

The wetlands of the Prairie Pothole Region provide essential benefits to communities and are a premier waterfowl breeding ground. Explore how CASC science is informing the strategic restoration and management of the Prairie Pothole Region in the face of climate change.
Learn More

USGS at the 2025 Philadelphia Flower Show

USGS returns to the Philadelphia Flower Show with an exhibit featuring bees, butterflies, birds and blooms. Visit our booth at the Pennsylvania Convention Center from March 1 to 9, 2025.
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USGS at the 2025 Philadelphia Flower Show

USGS returns to the Philadelphia Flower Show with an exhibit featuring bees, butterflies, birds and blooms. Visit our booth at the Pennsylvania Convention Center from March 1 to 9, 2025.
Learn More

Corridor Mapping Team: Ungulate Migrations of the West

Advancing the conservation and understanding of Wyoming's migratory hooved animals (mule deer, elk, pronghorn, etc.). The Wyoming Cooperative Fish and Wildlife Research Unit is led by USGS federal researchers. The Wyoming Migration Initiative is a University of Wyoming’s Zoology and Physiology Department-based collaborative of biologists, photographers, mapmakers, and writers working to research...
link

Corridor Mapping Team: Ungulate Migrations of the West

Advancing the conservation and understanding of Wyoming's migratory hooved animals (mule deer, elk, pronghorn, etc.). The Wyoming Cooperative Fish and Wildlife Research Unit is led by USGS federal researchers. The Wyoming Migration Initiative is a University of Wyoming’s Zoology and Physiology Department-based collaborative of biologists, photographers, mapmakers, and writers working to research...
Learn More

Multimedia

Kelsey Shepherd, former M.S. student
Kelsey Shepherd, former M.S. student, Iowa Cooperative Fish and Wildlife Research Unit
Kelsey Shepherd, former M.S. student, Iowa Cooperative Fish and Wildlife Research Unit
Kelsey Shepherd, former M.S. student.
Kelsey Shepherd, former M.S. student at the Iowa Cooperative Fish and Wildlife Research Unit
Kelsey Shepherd, former M.S. student at the Iowa Cooperative Fish and Wildlife Research Unit
Monarch butterflies
Monarch butterflies
Monarch butterflies
Monarch butterfly
Monarch butterfly
Monarch butterfly
Monarch caterpillars
Monarch caterpillars
Monarch caterpillars
Monarch caterpillar
Monarch caterpillar
Monarch caterpillar
Monarch butterflies
Monarch butterflies
Monarch butterflies
Babocomari River in southeast Arizona.
Babocomari River in southeast Arizona
Babocomari River in southeast Arizona
Wisconsin Department of Natural Resources conducts annual dip net surveys at sturgeon spawning locations throughout the Lake
The Wisconsin Department of Natural Resources conducts annual dip net surveys at sturgeon spawning locations throughout the Lake Winnebago system
The Wisconsin Department of Natural Resources conducts annual dip net surveys at sturgeon spawning locations throughout the Lake Winnebago system
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