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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

Causal Analysis of Fire Regime Drivers

Causal Analysis of Fire Regime Drivers

Genetic Diversity is a Key Factor in Climate-Driven Range Shifts

Genetic Diversity is a Key Factor in Climate-Driven Range Shifts

Webinar Series - Fueling Discovery with USGS Wildland Fire Science

Webinar Series - Fueling Discovery with USGS Wildland Fire Science

Publications

Whatever it takes— Shaping the L&O Letters Early Career Publication Honor to deliver true benefit Whatever it takes— Shaping the L&O Letters Early Career Publication Honor to deliver true benefit

There are clear advantages for those who openly share their research. Publishing Open Access (OA) articles can increase author visibility (McCabe and Snyder 2014), improve productivity metrics (i.e., more diverse and higher citation rates; Huang et al. 2024; Piwowar et al. 2018), widen collaborative networks (Tai and Robinson 2018), and help secure future funding and/or comply with...
Authors
Rita M. Franco-Santos, Bridget Deemer, Laura J. Falkenberg, Mary R. Gradoville, Scott Hotaling, Erin K. Peck

Bird migration and energetics simulations incorporating oil spill effects Bird migration and energetics simulations incorporating oil spill effects

Oil spills are well-known for causing acute mortality of birds, but sublethal and delayed impacts are less understood. Focusing on the mallard (Anas platyrhynchos), we used simulation modeling to explore how sublethal oiling may affect avian survival and breeding ground body condition. We used empirically informed migration and energetics simulations to model hypothetical spills...
Authors
Benjamin M West, Mark L. Wildhaber, Wayne E. Thogmartin, Michael J. Hooper

Distribution, abundance, breeding activities, and restoration efforts for the Southwestern Willow Flycatcher at Marine Corps Base Camp Pendleton, California—2025 Annual Report Distribution, abundance, breeding activities, and restoration efforts for the Southwestern Willow Flycatcher at Marine Corps Base Camp Pendleton, California—2025 Annual Report

Executive Summary The purpose of this report is to provide the Marine Corps with an annual summary of the distribution, abundance, and breeding activity of the endangered Southwestern Willow Flycatcher (Empidonax traillii extimus; flycatcher) and to present results of management actions implemented to attract flycatchers and enhance flycatcher habitat at Marine Corps Base Camp Pendleton...
Authors
Suellen Lynn, Scarlett L. Howell, Barbara E. Kus

Science

Using Artificial Intelligence to Estimate Traffic to Improve Planning and Access to Colorado’s Public Lands

This project applies data-driven, machine‑learning methods to estimate average annual daily traffic on roads that connect people to Colorado’s public lands, where traffic data are sparse or nonexistent. Expanding on successful applications in Wyoming, the approach uses socioeconomic, land-use, roadway, and accessibility data to uniquely model traffic patterns from 2015 to 2025. These predictions...
Using Artificial Intelligence to Estimate Traffic to Improve Planning and Access to Colorado’s Public Lands

Using Artificial Intelligence to Estimate Traffic to Improve Planning and Access to Colorado’s Public Lands

This project applies data-driven, machine‑learning methods to estimate average annual daily traffic on roads that connect people to Colorado’s public lands, where traffic data are sparse or nonexistent. Expanding on successful applications in Wyoming, the approach uses socioeconomic, land-use, roadway, and accessibility data to uniquely model traffic patterns from 2015 to 2025. These predictions...
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Colonial Nesting Waterbird Ecology

USGS is engaged in a variety of research aimed at understanding population dynamics in colonially nesting waterbirds of the Chesapeake Bay. Much of this work focuses on how focal species such as Common and Least Terns, Cattle and Snowy Egrets, and others respond to habitat restoration and management on Poplar Island, a large-scale effort lead by the U.S. Army Corps of Engineers and the Port of...
Colonial Nesting Waterbird Ecology

Colonial Nesting Waterbird Ecology

USGS is engaged in a variety of research aimed at understanding population dynamics in colonially nesting waterbirds of the Chesapeake Bay. Much of this work focuses on how focal species such as Common and Least Terns, Cattle and Snowy Egrets, and others respond to habitat restoration and management on Poplar Island, a large-scale effort lead by the U.S. Army Corps of Engineers and the Port of...
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Novel Management Techniques for Colonial Nesting Waterbirds

This project focuses on USGS collaborating with USFWS colleagues to understand how management practices on Poplar Island impact target and non-target wildlife species.
Novel Management Techniques for Colonial Nesting Waterbirds

Novel Management Techniques for Colonial Nesting Waterbirds

This project focuses on USGS collaborating with USFWS colleagues to understand how management practices on Poplar Island impact target and non-target wildlife species.
Learn More
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