Skip to main content
U.S. flag

An official website of the United States government

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

Species on the Move: Northeast CASC Researchers Discuss Species Range Shift in Recent Podcast Episode

Species on the Move: Northeast CASC Researchers Discuss Species Range Shift in Recent Podcast Episode

Study Reveals That Inland Recreational Fishery Harvest is Quite the Catch

Study Reveals That Inland Recreational Fishery Harvest is Quite the Catch

USGS Expertise Informs Design and Construction of New Eel Ladder at Maryland’s Eden Mill Dam

USGS Expertise Informs Design and Construction of New Eel Ladder at Maryland’s Eden Mill Dam

Publications

Distribution, abundance, and breeding activities of Southwestern Willow Flycatchers (Empidonax traillii extimus) on the San Dieguito River and upper San Luis Rey River, San Diego County, California—2025 data summary Distribution, abundance, and breeding activities of Southwestern Willow Flycatchers (Empidonax traillii extimus) on the San Dieguito River and upper San Luis Rey River, San Diego County, California—2025 data summary

Executive Summary We surveyed for Southwestern Willow Flycatchers (Empidonax traillii extimus; flycatcher) at the San Dieguito River and the upper San Luis Rey River in 2025. Surveys were completed at five locations: one along the San Dieguito River (San Dieguito [SD]), which was last surveyed in 2016, and four along the upper San Luis Rey River, including three downstream from Lake...
Authors
Scarlett L. Howell, Barbara E. Kus

Open water control of invasive mussels using benthic mats—Part 1, short-term infusion of carbon dioxide under a mat Open water control of invasive mussels using benthic mats—Part 1, short-term infusion of carbon dioxide under a mat

This study compared the efficacy of a benthic mat alone with carbon dioxide infusion under a mat for killing Dreissena polymorpha (Pallas, 1771) (zebra mussel). Three sites were selected in Loon Lake, Sleeping Bear Dunes National Lakeshore, Benzie County, Michigan, for replication of reference, benthic mat, and carbon dioxide mat treatments. Within a site, three 4-meter (m) x 4-m plots...
Authors
Diane L. Waller, Richard A. Erickson, Jeremy K. Wise, Matthew J. Meulemans, Brad E.C. Morris, Todd J. Severson, Matthew T. Barbour

Black abalone surveys at Naval Base Ventura County, San Nicolas Island, California—2023 annual report Black abalone surveys at Naval Base Ventura County, San Nicolas Island, California—2023 annual report

The U.S. Geological Survey monitors a suite of intertidal black abalone (Haliotis cracherodii) sites at San Nicolas Island, California, in cooperation with the U.S. Navy, which owns the island. The nine rocky intertidal sites were established in 1980 to study the potential effect of translocated sea otters on the intertidal black abalone population at the island. The sites were monitored...
Authors
Michael C. Kenner, Julie L. Yee

Science

Modernized Breeding Bird Survey Portal

The North American Breeding Bird Survey (BBS) Portal is a modern information system that enables volunteer observers and regional coordinators to manage survey routes, enter field data, and coordinate route assignments online. The portal replaces legacy paper-based and outdated digital workflows with a streamlined interface built for the BBS community. Observers can view their assigned routes...
Modernized Breeding Bird Survey Portal

Modernized Breeding Bird Survey Portal

The North American Breeding Bird Survey (BBS) Portal is a modern information system that enables volunteer observers and regional coordinators to manage survey routes, enter field data, and coordinate route assignments online. The portal replaces legacy paper-based and outdated digital workflows with a streamlined interface built for the BBS community. Observers can view their assigned routes...
Learn More

USGS Northern Rocky Mountain Science Center Fiscal Year 2025 Highlights

The USGS Northern Rocky Mountain Science Center (NOROCK) proudly supports Federal, State, Tribal, and other partners by delivering high-quality data, cutting-edge science, and practical tools to support natural resource management. Below are some of NOROCK’s highlights during fiscal year 2025.
USGS Northern Rocky Mountain Science Center Fiscal Year 2025 Highlights

USGS Northern Rocky Mountain Science Center Fiscal Year 2025 Highlights

The USGS Northern Rocky Mountain Science Center (NOROCK) proudly supports Federal, State, Tribal, and other partners by delivering high-quality data, cutting-edge science, and practical tools to support natural resource management. Below are some of NOROCK’s highlights during fiscal year 2025.
Learn More

Responding to New World Screwworm in the U.S.

The USGS National Wildlife Health Center (NWHC) is supporting the Department of the Interior’s (DOI) preparedness planning and response for New World screwworm (NWS), a foreign animal disease detected in the U.S. in June 2026 after its northward spread from Central America. 
Responding to New World Screwworm in the U.S.

Responding to New World Screwworm in the U.S.

The USGS National Wildlife Health Center (NWHC) is supporting the Department of the Interior’s (DOI) preparedness planning and response for New World screwworm (NWS), a foreign animal disease detected in the U.S. in June 2026 after its northward spread from Central America. 
Learn More
Was this page helpful?