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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

FORT Science in Action 2026, Part 18: Ecological research supporting wild horse and burro management

FORT Science in Action 2026, Part 18: Ecological research supporting wild horse and burro management

FORT Science in Action 2026, Part 17: Large mammal science for management of public lands

FORT Science in Action 2026, Part 17: Large mammal science for management of public lands

FORT Science in Action 2026, Part 16: Advances in science and monitoring tools for management of bats across the continent

FORT Science in Action 2026, Part 16: Advances in science and monitoring tools for management of bats across the continent

Publications

A framework for investigating fish population density responses to habitat fragmentation A framework for investigating fish population density responses to habitat fragmentation

Globally, fish populations that rely on rivers are being fragmented by in-stream barriers, but it is unclear how pervasive any negative population responses to fragmentation are. We developed a modeling framework for estimating density responses of fishes upstream and downstream of in-stream barriers and applied it to learn how low-head dams have influenced fish assemblages in 24 Great...
Authors
Sean Alois Lewandoski, Gale Bravener, Nathan Coombs, Robert McLaughlin

First application of a coastal-dune model (AeoLiS) to simulate fluvial-aeolian morphodynamics First application of a coastal-dune model (AeoLiS) to simulate fluvial-aeolian morphodynamics

Quantifying aeolian processes is important to decision-making in river management and for optimizing strategies for ecosystem conservation, natural resource management, and recreation. We applied the AeoLiS aeolian transport model, originally developed for coastal environments, to a dryland river corridor to evaluate its ability to simulate sediment dynamics in a fluvial-aeolian system...
Authors
Madeline Margaret Kelley, Joel B. Sankey, Nicholas Cohn, Amy E. East, Alan Kasprak, Helen C. Fairley, Joshua Caster, B. van Westen

A genomic tool to tackle cryptic diversity demonstrates the potential for off-target use of GT-seq panels A genomic tool to tackle cryptic diversity demonstrates the potential for off-target use of GT-seq panels

A comprehensive understanding of life history is vital to successful species conservation and management. When different life history stages are accompanied by considerable morphological or cryptic variation, such as the egg and larval phases exhibited by most fishes, genomic tools are essential for identifying species so that early-life ecology questions can be studied. Genotyping-in...
Authors
Amanda Susanne Ackiss, Mark R. Vinson, Ann J. Ropp, Kristen M. Gruenthal, Trevor J. Krabbenhoft, Joseph V. Siegel, Wendylee Stott, Daniel L. Yule, Wesley A. Larson

Science

2026 Environmental Health Program Highlights

The USGS’s environmental health research in 2026 advanced national priorities focused on strengthening America’s energy future, supporting responsible mineral development, continuing scientific integrity, and improving environmental resilience. The studies highlighted below, show how USGS scientists in the Environmental Health (EH) Program delivered actionable, trusted science through improved...
2026 Environmental Health Program Highlights

2026 Environmental Health Program Highlights

The USGS’s environmental health research in 2026 advanced national priorities focused on strengthening America’s energy future, supporting responsible mineral development, continuing scientific integrity, and improving environmental resilience. The studies highlighted below, show how USGS scientists in the Environmental Health (EH) Program delivered actionable, trusted science through improved...
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USGS Energy and Wildlife Research Update (March–September 2026)

The USGS and collaborators are advancing research across a range of energy generation technologies and their effects on fish, wildlife and habitats. This research update highlights recent studies on oil and gas development, including the effectiveness of mitigation measures for migratory caribou in the Arctic and the demographic responses of mule deer to habitat quality, climate, and energy...
USGS Energy and Wildlife Research Update (March–September 2026)

USGS Energy and Wildlife Research Update (March–September 2026)

The USGS and collaborators are advancing research across a range of energy generation technologies and their effects on fish, wildlife and habitats. This research update highlights recent studies on oil and gas development, including the effectiveness of mitigation measures for migratory caribou in the Arctic and the demographic responses of mule deer to habitat quality, climate, and energy...
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USGS Bird Science by Flyway—Summer 2026 Highlights

Connecting state agencies and biologists to the breadth of partner-driven science that USGS supports in your flyway.
USGS Bird Science by Flyway—Summer 2026 Highlights

USGS Bird Science by Flyway—Summer 2026 Highlights

Connecting state agencies and biologists to the breadth of partner-driven science that USGS supports in your flyway.
Learn More
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