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Ecosystems Mission Area

The USGS Ecosystems Mission Area provides science that directly benefits the health, safety, and prosperity of the American people by providing trusted and timely information to help address the Nation’s toughest management and conservation issues impacting public lands and the surrounding communities that benefit from them. 

News

Reeling in Cleaner Data: Experts Use AI to Support Resilient Inland Fisheries

Reeling in Cleaner Data: Experts Use AI to Support Resilient Inland Fisheries

Western Fisheries Research Center Institutional Animal Care and Use Committee (IACUC) Meeting - August 19, 2026

Western Fisheries Research Center Institutional Animal Care and Use Committee (IACUC) Meeting - August 19, 2026

Advancing the Science and Management of Range Shifts

Advancing the Science and Management of Range Shifts

Publications

Estimating greater sage-grouse population sizes within Oregon, 2017–24 Estimating greater sage-grouse population sizes within Oregon, 2017–24

We fit a binomial mixture (N-mixture) model to lek (breeding area) count data to estimate annual population sizes of greater sage-grouse (Centrocercus urophasianus; sage-grouse) within Oregon between 2017 and 2024. Population estimates were delineated among 24 priority areas for conservation, and additional sources of information were considered, including male-to-female sex ratios, lek...
Authors
Brian G. Prochazka, Austin L. Nash, Shawn T. O’Neil, Skyler T. Vold, Peter S. Coates, Adrian P. Monroe, Cameron L. Aldridge

Wicked problems in practice: Responding to ecological transformation in wilderness Wicked problems in practice: Responding to ecological transformation in wilderness

Congressionally designated wilderness offers the highest level of land protection in the USA, comparable to category 1b wilderness as defined by the International Union for Conservation of Nature, yet wilderness areas face impacts of climate change. Researchers and managers increasingly recognize the immense challenge of stewarding wilderness in a changing climate. Although responding to...
Authors
Jaclyn Fox Rushing, Kira Hefty, Teresa N. Hollingsworth, Amanda E. Cravens, Christopher A. Armatas, Clare Boerigter, Kellie J. Carim, Shelley D. Crausbay, Olga Helmy, David J. Lawrence, Lauren Redmore, George W. Schuurman, Eric J. Taylor, Jennifer N.L. Wilkening, Katherine A. Zeller, Sean A. Parks

Southeastern Utah Federal lands science needs survey Southeastern Utah Federal lands science needs survey

Evidence-based scientific information can help support defensible decision making in the management of public lands. This report sought to identify current (2024–25) Federal agency research needs in southeastern Utah and to synthesize common management challenges and questions across jurisdictional boundaries. We implemented a science needs assessment focused on lands managed by the...
Authors
M. Allison Stegner, Jonathan Argov, Liz A. Ballenger, Kimberly Hartwig, Laura Martin, Gerald I. Wakefield, Rebecca A. Weissinger, Michael C. Duniway

Science

Advancing the Environmental DNA Toolkit for Ecosystem Monitoring and Management

The emerging field of Environmental DNA (eDNA) analysis allows characterization of species presence and community biodiversity by identifying trace amounts of genetic material left behind as organisms move through their environments. EESC scientists have been using eDNA technologies to detect native and rare species and as community biomonitoring tools.
Advancing the Environmental DNA Toolkit for Ecosystem Monitoring and Management

Advancing the Environmental DNA Toolkit for Ecosystem Monitoring and Management

The emerging field of Environmental DNA (eDNA) analysis allows characterization of species presence and community biodiversity by identifying trace amounts of genetic material left behind as organisms move through their environments. EESC scientists have been using eDNA technologies to detect native and rare species and as community biomonitoring tools.
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Combining Novel Technologies for Fast, Field-Ready eDNA Detection of Brown Treesnakes to Enhance Biosecurity Across International Borders

The USGS is working with the Department of the Navy to develop a new, field-ready tool to help detect Brown Treesnake environmental DNA to help prevent the spread and establishment of the invasive species into new areas.
Combining Novel Technologies for Fast, Field-Ready eDNA Detection of Brown Treesnakes to Enhance Biosecurity Across International Borders

Combining Novel Technologies for Fast, Field-Ready eDNA Detection of Brown Treesnakes to Enhance Biosecurity Across International Borders

The USGS is working with the Department of the Navy to develop a new, field-ready tool to help detect Brown Treesnake environmental DNA to help prevent the spread and establishment of the invasive species into new areas.
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Terrestrial Mammal Research

Understanding the population dynamics, predator/prey relationships and habitat ecology of terrestrial mammals, such as caribou and muskoxen, is critical for the management of these species and their habitats in Alaska.
Terrestrial Mammal Research

Terrestrial Mammal Research

Understanding the population dynamics, predator/prey relationships and habitat ecology of terrestrial mammals, such as caribou and muskoxen, is critical for the management of these species and their habitats in Alaska.
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