Patuxent Wildlife Research Center


Patuxent Wildlife Research Center (PWRC) produces innovative science to support natural resource management and meet our nation’s most pressing conservation challenges.
PWRC research topics include bird population dynamics, ecotoxicology, and the development of quantitative & decision analysis tools. We conduct several national programs, including the Bird Banding Lab and the Breeding Bird Survey.

Research Spotlight

Research Spotlight

USGS Patuxent scientists are providing managers with tools for improving detection and for proactively mitigating the impacts of amphibian diseases.

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Publication Spotlight

Publication Spotlight

A decision-support framework was developed in collaboration with USFWS to identify approaches to maximize salt marsh management benefits at Bombay Hook National Wildlife Refuge.

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Date published: July 23, 2019

Brilliant Bandings & Superb Sightings: Ring-billed Gull in Long Island

A color-marked Ring-billed Gull has second sighting in a Long Island village.

Date published: June 14, 2019

Modeling Management Actions Helps Researchers Pinpoint the Main Culprit of Wood Frog Declines

Amphibian decline is a global conservation crisis driven by multiple interacting stressors, which often act at a local scale with global implications.

Date published: May 31, 2019

Student Interns with Differing Abilities Recognized for Accomplishments in Employment Training

USGS student interns and employees of the Band-Scan Project reflect on their work experiences during their time in STEP-UP.


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Year Published: 2019

Decline of the North American avifauna

Species extinctions have defined the global biodiversity crisis, but extinction begins with loss in abundance of organisms that can result in extreme compositional and functional changes of ecosystems. Using multiple and independent monitoring networks, we report major population losses across much of the North American avifauna, including in once...

Sauer, John R.; Rosenberg, Kenneth V.; Dokter, Adriaan M.; Blancher, Peter J.; Smith, Adam C.; Smith, Paul A.; Stanton, J.C.; Panjabi, Arvind O.; Helft, Laura; Parr, Michael J.; Marra, Peter P.

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Year Published: 2019

The long-term effects of Hurricanes Wilma and Irma on soil elevation change in Everglades mangrove forests

Mangrove forests in the Florida Everglades (USA) are frequently affected by hurricanes that produce high-velocity winds, storm surge, and extreme rainfall, but also provide sediment subsidies that help mangroves adjust to sea-level rise. The long-term influence of hurricane sediment inputs on soil elevation dynamics in mangrove forests are not...

Feher, Laura; Osland, Michael; Anderson, Gordon; Vervaeke, William; Krauss, Ken; Whelan, Kevin R. T.; Balentine, Karen M.; Tiling-Range, Ginger; 3663; Cahoon, Donald

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Year Published: 2019

Estimating spatially and temporally complex range dynamics when detection is imperfect

Species distributions are determined by the interaction of multiple biotic and abiotic factors, which produces complex spatial and temporal patterns of occurrence. As habitats and climate change due to anthropogenic activities, there is a need to develop species distribution models that can quantify these complex range dynamics. In this paper, we...

Rushing, Clark S.; Royle, J. Andrew; Ziolkowski, David; Pardieck, Keith L.