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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. There are 42 units in 40 states. We host a national program office at the USGS in Reston, Virginia.

News

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Home for the Holidays: Follow One Mule Deer’s 242-Mile Journey Across the Changing American West

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New big game migration maps support conservation planning across the West

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Population declines in Alaska beluga whale population may be linked to low birth and survival rates

Publications

Wind-energy development alters pronghorn migration at multiple scales

Migration is a critical behavioral strategy necessary for population persistence and ecosystem functioning, but migration routes have been increasingly disrupted by anthropogenic activities, including energy development. Wind energy is the world's fastest growing source of electricity and represents an important alternative to hydrocarbon extraction, but its effects on migratory species beyond bir

A new approach to the study of relationship quality in dolphins: framework and preliminary results

Proximity and synchronous behaviours from surface observations have been used to measure association patterns within and between dolphin dyads. To facilitate an investigation of relationship quality in dolphins, we applied a method used for chimpanzees and ravens that examined three main components to describe relationships: value, security, and compatibility. Using pilot data from a long-term stu

Ungulate migrations of the western United States, volume 3

Ungulates (hooved mammals) have a broad distribution across the western United States and play an important role in maintaining predator-prey dynamics, affecting vegetation communities, and providing economic benefits to regional communities through tourism and hunting. Throughout the diverse landscapes they occupy, many ungulate populations undertake seasonal migrations to exploit spatially and t

Science

Wyoming Migration Initiative: Ungulate Migration in 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...
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Wyoming Migration Initiative: Ungulate Migration in 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...
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Hurricane Portfolio

Research conducted as part of the CRU program is determined, approved, and supported by each unit’s coordinating committee composed of representatives from the USGS, one or more of the respective State fish and wildlife agencies, the host university, the Wildlife Management Institute, and the USFWS. The stakeholder-driven nature of the program’s research portfolio is designed to ensure that the...
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Hurricane Portfolio

Research conducted as part of the CRU program is determined, approved, and supported by each unit’s coordinating committee composed of representatives from the USGS, one or more of the respective State fish and wildlife agencies, the host university, the Wildlife Management Institute, and the USFWS. The stakeholder-driven nature of the program’s research portfolio is designed to ensure that the...
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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...
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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...
Learn More