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Discovering Connections Across America's Lands and Waters

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Securing the Nation's Need for Native Seed

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Land management research in support of streamlined energy development, economic growth, and wildfire management

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Land Management Research Program

The Land Management Research Program conducts research to improve the effectiveness of land management and inform restoration of priority ecosystems on millions of acres including public lands such as National Parks, refuges, and other critical landscapes that support the biodiversity of fish, wildlife, and plant species, as well as thriving economies.

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Ecosystem Research

Looking towards mountain peaks from shore of Knox Lake

The Nation’s ecosystems are complex, dynamic, and exposed to a rapidly changing climate among other threats.  USGS scientists study how ecosystems function, the impacts of stressors, and make predictions about their future to improve restoration and management outcomes.

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Firelight

Wildfire in Mason Valley, Nevada

Firelight provides updates on the latest USGS fire science for a changing world. Each issue features a variety of our wildland fire science, providing information, data and tools for use by managers before, during, and after fires.

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News

Lessons Learned from Marsh-Focused Management Actions at Blackwater National Wildlife Refuge

Lessons Learned from Marsh-Focused Management Actions at Blackwater National Wildlife Refuge

RAMPS Newsletter - 2026

RAMPS Newsletter - 2026

EcoNews - Vol. 7 | Issue 2

EcoNews - Vol. 7 | Issue 2

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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
By
Ecosystems Mission Area, Land Management Research Program, Species Management Research Program, Fort Collins Science Center, Western Ecological Research Center (WERC)

Invasion resistance varies by fuel break type in sagebrush ecosystems Invasion resistance varies by fuel break type in sagebrush ecosystems

Background Wildfire is an increasingly important driver of changes within sagebrush (Artemisia spp. L.) ecosystems of the western USA, often resulting in increased spread of exotic annual grasses, such as cheatgrass (Bromus tectorum L.), and subsequent losses of native vegetation and wildlife habitat. Fuel breaks— areas of land treated to reduce or redistribute fuel loads — are widely...
Authors
Austin L. Nash, Brianne E. Brussee, Cali L. Weise, Douglas J. Shinneman, Susan K. McIlroy, Sarah C. Webster, Steven R. Mathews, Seth J. Dettenmaier, Lea A. Condon, Michele R. Crist, Cameron L. Aldridge, Julie A. Heinrichs, Mark A. Ricca, Shawn T. O’Neil, Peter S. Coates
By
Ecosystems Mission Area, Land Management Research Program, Fort Collins Science Center, Western Ecological Research Center (WERC)

Range-wide population trend analysis for greater sage-grouse (Centrocercus urophasianus)—Updated 1960–2024 Range-wide population trend analysis for greater sage-grouse (Centrocercus urophasianus)—Updated 1960–2024

Greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse) are at the center of State and national land-use policies largely because of their unique life-history traits as an ecological indicator for the health of sagebrush ecosystems. This updated population trend analysis provides State and Federal land and wildlife managers with the best available science to help guide...
Authors
Brian G. Prochazka, Peter S. Coates, Cameron L. Aldridge, Michael S. O’Donnell, David R. Edmunds, Adrian P. Monroe, Steve E. Hanser, Lief A. Wiechman, Michael P. Chenaille
By
Ecosystems Mission Area, Land Management Research Program, Fort Collins Science Center, Western Ecological Research Center (WERC)
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Science

a yellow and black patterned snake moving through the tops of a bush

Wildlife Ecology and Habitat Restoration Team

Our team conducts research on wildlife species ecology, threats to species, causes of population dynamics, and ways to mitigate threats for species recovery. For example, we conduct research on ecological restoration in terrestrial and aquatic environments, and investigate wildlife responses to restoration. We also evaluate standardized methods used to monitor post-restoration outcomes and develop...
By
Land Management Research Program, Forest and Rangeland Ecosystem Science Center
Wildlife Ecology and Habitat Restoration Team

Wildlife Ecology and Habitat Restoration Team

Our team conducts research on wildlife species ecology, threats to species, causes of population dynamics, and ways to mitigate threats for species recovery. For example, we conduct research on ecological restoration in terrestrial and aquatic environments, and investigate wildlife responses to restoration. We also evaluate standardized methods used to monitor post-restoration outcomes and develop...
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Spectacled eider male and female flying near the Colville River in 2013.

Waterfowl Research

Scientists at the USGS Alaska Science Center have conducted research on waterfowl species (ducks, geese, and swans) in Alaska since the 1970s. Because Alaska is an international crossroads of migratory bird flyways, with millions of birds from Asia and North America breeding in Alaska each summer, USGS research has also taken place in adjacent countries (Russia, Japan, Canada, Mexico) and in the...
By
Ecosystems Mission Area, Land Management Research Program, Species Management Research Program, Alaska Science Center
Waterfowl Research

Waterfowl Research

Scientists at the USGS Alaska Science Center have conducted research on waterfowl species (ducks, geese, and swans) in Alaska since the 1970s. Because Alaska is an international crossroads of migratory bird flyways, with millions of birds from Asia and North America breeding in Alaska each summer, USGS research has also taken place in adjacent countries (Russia, Japan, Canada, Mexico) and in the...
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The north fork of the Agashashok River

Hydro-Ecology of Arctic Thawing (HEAT): Hydrology

The Arctic is warming at higher rates than much of the rest of the world. For Alaska, this results in changes in hydrology and ecosystems – permafrost is thawing, changing landscapes and releasing nutrients to soils and streams.
By
Land Management Research Program, Alaska Science Center
Hydro-Ecology of Arctic Thawing (HEAT): Hydrology

Hydro-Ecology of Arctic Thawing (HEAT): Hydrology

The Arctic is warming at higher rates than much of the rest of the world. For Alaska, this results in changes in hydrology and ecosystems – permafrost is thawing, changing landscapes and releasing nutrients to soils and streams.
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