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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.

Filter Total Items: 175546

Cumulative effects analysis to inform public land management in the United States: Key characteristics and legal challenges Cumulative effects analysis to inform public land management in the United States: Key characteristics and legal challenges

Considering potential cumulative effects of proposed actions is fundamental to environmental impact analysis. However, cumulative effects analyses historically are not robust, especially for site-specific decisions. We sought to identify opportunities to strengthen cumulative effects analysis in a large United States public land management agency, the Bureau of Land Management (BLM). We...
Authors
Tait K. Rutherford, Tim O. Hammond, Alison C. Foster, Megan A. Gilbert, Travis S. Haby, Richard J. Lehrter, Jennifer K. Meineke, Ella M. Samuel, Sarah K. Carter

Population and outmigration characteristics of juvenile Bull Trout in a montane ecosystem Population and outmigration characteristics of juvenile Bull Trout in a montane ecosystem

Bull Trout Salvelinus confluentus is a federally threatened species in the conterminous United States. Although some populations are stable or increasing, Bull Trout in the United States Fish and Wildlife Service's designated Coeur d'Alene Core Area in Idaho have experienced substantial declines in abundance. Today, the remaining extant population in the Coeur d'Alene Core Area returns...
Authors
James S. Unsworth, Andrew M. Dux, Carlos A. Camacho, Michael C. Quist

Persistence of a declining anuran species across its distribution Persistence of a declining anuran species across its distribution

Information on a species’ population dynamics, such as changes in abundance and distribution, can be used to identify declining populations and initiate conservation efforts and protections. For the Ornate Chorus Frog (Pseudacris ornata), anecdotal observations of local extirpation and population declines have been noted, but trends in its range-wide population status are generally...
Authors
Erin L. Koen, Edward Hance Ellington, William J. Barichivich, Howard Kochman, Kevin M. Enge, Susan E. Walls

Bears avoid residential neighborhoods in response to the experimental reduction of anthropogenic attractants Bears avoid residential neighborhoods in response to the experimental reduction of anthropogenic attractants

Introduction: Urbanization is an extreme form of land use alteration, with human development driving changes in the distribution of resources available to wildlife. Some large carnivores have learned to exploit anthropogenic food resources in urban development, resulting in human-carnivore conflict that can have detrimental impacts to people and carnivores, as exemplified by American...
Authors
Cassandre C. Venumière-Lefebvre, Heather E. Johnson, Stewart W. Breck, Mathew W. Alldredge, Kevin R. Crooks

Apicomplexan and non-metazoan microeukaryotes in the thermosensitive reef-building coral Acropora hyacinthus shift in abundance throughout an extreme coral bleaching event Apicomplexan and non-metazoan microeukaryotes in the thermosensitive reef-building coral Acropora hyacinthus shift in abundance throughout an extreme coral bleaching event

Coral reefs play vital roles in global marine systems and are currently facing increased threats of bleaching. Coral bleaching is heavily influenced by the host-associated microeukaryote community – most notably the dinoflagellate family Symbiodiniaceae. The apicomplexan family Corallicolidae, is the second most abundant member of the microeukaryote community, yet their role in coral...
Authors
Athena Peterson, Sunni Patton, Emily Rose Schmeltzer, Carsten Grupstra, Lauren Howe-Kerr, J. Grace Klinges, Rebecca Maher, Adrianna Messyasz, Sarah Seabrook, Andrew Thurber, Adrienne Correa, Rebecca Vega Thurber

Accounting for seasonal patterns in bird availability prevents biased population trend estimates with advancing spring phenology Accounting for seasonal patterns in bird availability prevents biased population trend estimates with advancing spring phenology

Advancing spring phenology has been observed around the world, including changes in the timing of breeding of birds. When singing rates are tied to breeding stage, the rate at which birds are available for detection by surveyors can also show seasonal patterns that may shift with spring phenology. As the timing of peak bird availability changes over years, monitoring programs that do not...
Authors
Emily L. Weiser, James Johnson, Steven M. Matsuoka, Colleen M. Handel
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