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Publications

Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

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Asynchronous movement patterns between breeding and stopover locations in a long-distance migratory songbird Asynchronous movement patterns between breeding and stopover locations in a long-distance migratory songbird

The species-specific migratory patterns and strategies of many songbirds remain unknown or understudied, as research in animal ecology is biased toward the breeding period, with the fewest studies on the migratory period across taxa. Identifying large-scale spatiotemporal migratory patterns is challenging, as individuals within a species may vary in their migratory behavior and...
Authors
Theodore J. Zenzal, Andrea Contina, Hannah B. Vander Zanden, Leanne K. Kuwahara, Daniel C. Allen, Kristen M. Covino

Observing systems, modeling, and forecasting Observing systems, modeling, and forecasting

Predicting harmful algal blooms (HABs) requires integrating physical, chemical, and biological data collected from observing networks and then assimilating these data into models, which are used to generate forecasts. In 2005, the Harmful Algal Research and Response: A National Environmental Science Strategy 2005-2015 (HARRNESS, 2005) made recommendations on how to improve HAB modeling...
Authors
Keith Bouma-Gregson, Gregory Doucette, Jennifer L. Graham, Raphael Kudela, Beth Stauffer, Clarissa Anderson, John F. Bratton, Benjamin M. Holcomb, Kate Hubbard, Tenaya Norris, Tom Stiles, Peter J. Tango, Heather Raymond, Vanessa Zubkousky

Annual migratory movement, apparent molt-migration, migration schedule, and diffuse migratory connectivity of Hermit Warblers Annual migratory movement, apparent molt-migration, migration schedule, and diffuse migratory connectivity of Hermit Warblers

Quantifying migratory connectivity and annual movement is key to sound conservation planning for migratory species. Hermit Warblers (Setophaga occidentalis) are an endemic-breeding species in the Pacific Northwest that winters in Mexico and the Central Americas. This species faces threats from mature forest loss and climate change throughout its range, but we know little about its...
Authors
Hankyu Kim, Rodney Siegel, Jaime L Stephens, Joan Hagar, Brett Furnas, Min-Su Jeong, Brenda C McComb, Matthew G. Betts

Abundance and distribution of white-tailed deer on First State National Historical Park and surrounding lands Abundance and distribution of white-tailed deer on First State National Historical Park and surrounding lands

We estimated both abundance and distribution of white-tailed deer (Odocoileus virginianus) on the Brandywine Valley unit of First State National Historical Park (FRST) and the Brandywine Creek State Park (BCSP) during 2020 and 2021 with two widely used field methods — a road-based count and a network of camera traps. We conducted 24 road-based counts, covering 260 km of roadway, and...
Authors
H. Brian Underwood, Madison R. Hand, Donald J. Leopold
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