Mapped: 33 new big game migrations across American West
Art and Science
Science
Diversity, Equity, Inclusion, Accessibility
Year in Review
World's Longest Mule Deer Migration
Beluga Whale in Alaska’s Cook Inlet
Wildlife Management Institute Outdoors New Bulletin
Stories from the Field
All Research
Purdue University hosts new CRU!
Budget, Staffing, How our Program Works
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, VA.
Research at a Glance
Research at a Glance
We have more than 1,000 research projects under way and generate 250-300 scientific publications annually.
How our Program Works
How our Program Works
Fire, wildlife disease, human dimensions, threatened and endangered species
News
A new study predicts grizzly bear habitat use in the Bitterroot Ecosystem of Montana and Idaho
A new study predicts grizzly bear habitat use in the Bitterroot Ecosystem of Montana and Idaho
Study finds salamanders are surprisingly abundant in northeastern forests
Study finds salamanders are surprisingly abundant in northeastern forests
Fridays Findings - June 14, 2024
Fridays Findings - June 14, 2024
Publications
Wildlife health capacity enhancement in Thailand through the World Organisation for Animal Health Twinning Program
There is an increasing need for robust wildlife health programs that provide surveillance and management for diseases in wildlife and wild aquatic populations to manage associated risks. This paper illustrates the value of a systematic method to enhancing wildlife health programs. The U.S. Geological Survey and Mahidol University, Faculty of Veterinary Science, Thailand National Wildlife Health Ce
Population genetic structure and demographic history reconstruction of introduced flathead catfish (Pylodictis olivaris) in two US Mid-Atlantic rivers
Population genetic analysis of invasive populations can provide valuable insights into the source of introductions, pathways for expansion, and their demographic histories. Flathead catfish (Pylodictis olivaris) are a prolific invasive species with high fecundity, long-distance dispersal, and piscivorous feeding habits that can lead to declines in native fish populations. In this study, we analyse
Common-garden experiment reveals outbreeding depression and region-of-origin effects on reproductive success in a frequently translocated tortoise
Human-mediated animal movement can expose wildlife populations to novel environments. Phenotypic plasticity can buffer against the challenges presented by novel environments, while adaptation to local ecosystems may limit resilience in novel ecosystems. Outbreeding depression during the mixing of disparate gene pools can also reduce reproductive success after long-distance movement. Here, we use a
Science
Sustaining Horseshoe Crabs and Supporting Migratory Shorebirds in the Delaware Bay
USGS is developing predictive models to inform sustainable harvest of horseshoe crabs ( Limulus polyphemus) in Delaware Bay to help managers make decisions to support needs of people and shorebirds including rufa red knot ( Calidris canutus rufa ).
USGS Alaska Science Center Wildlife Tracking Data Collection
Understanding the short- and long-distance movements of wildlife is critical for a wide variety of ecological research questions and management decisions. Since the mid-1980s, the USGS Alaska Science Center has used information from telemetry devices on wildlife species to determine locations of animals throughout their annual cycles, understand patterns of habitat use, quantify time spent on...
2022 Year in Review
This has been another outstanding year for the CRU Program, and I am pleased to provide you with our 2022 Year in Review report. Highlights of this past year include the creation of our 42nd unit at Michigan State University and the completion of hiring activities for 37 new unit scientists in 31 States. In this report, you will learn more about the spectacular accomplishments of our students...
