Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 42768
Volume of larvae Is the most important single predictor of mass temperatures in the forensically important Calliphorid, Chrysomya megacephala (Diptera: Calliphoridae) Volume of larvae Is the most important single predictor of mass temperatures in the forensically important Calliphorid, Chrysomya megacephala (Diptera: Calliphoridae)
Calliphorid species form larval aggregations that are capable of generating heat above ambient temperature. We wanted to determine the relationship between volume, number of larvae, and different combinations of instars on larval mass heat generation. We compared different numbers of Chrysomya megacephala (F.) larvae (40, 100, 250, 600, and 2,000), and different combinations of instars (...
Authors
S. V. Gruner, D. H. Slone, J.L. Capinera, M. P. Turco
Reinforcement and validation of the analyses and conclusions related to fishway evaluation data from Bunt et al.: ‘Performance of fish passage structures at upstream barriers to migration’ Reinforcement and validation of the analyses and conclusions related to fishway evaluation data from Bunt et al.: ‘Performance of fish passage structures at upstream barriers to migration’
Detailed re-examination of the datasets that were used for a meta-analysis of fishway attraction and passage revealed a number of errors that we addressed and corrected. We subsequently re-analysed the revised dataset, and results showed no significant changes in the primary conclusions of the original study; for most species, effective performance cannot be assured for any fishway type.
Authors
C.M. Bunt, Theodore R. Castro-Santos, Alexander Haro
Unusual clockwise loop migration lengthens travel distances and increases potential risks for a central Asian, long distance, trans-equatorial migrant, the Red-footed Falcon Falco vespertinus Unusual clockwise loop migration lengthens travel distances and increases potential risks for a central Asian, long distance, trans-equatorial migrant, the Red-footed Falcon Falco vespertinus
Capsule: Red-footed Falcons Falco vespertinus migrating from northern Kazakhstan proceed west before heading south to Africa; their northbound travel follows a different route with passage close to shooting hotspots in the Mediterranean. Aim: To use tracking and ringing data to document for the first time the migration of globally threatened Red-footed Falcons from northern Kazakhstan...
Authors
Todd E. Katzner, Evgeny A. Bragin, Alexander E. Bragin, Michael J. McGrady, Tricia A. Miller, Keith L. Bildstein
Diadophis Punctuatus (Ring-necked Snake). Diet. Diadophis Punctuatus (Ring-necked Snake). Diet.
No abstract available.
Authors
Dustin A. Wood, Jason Myrand, Andrew T. Holycross
Eastern Whip-poor-wills (Antrostomus vociferus) are positively associated with low elevation forest In the central Appalachians Eastern Whip-poor-wills (Antrostomus vociferus) are positively associated with low elevation forest In the central Appalachians
Populations of the Eastern Whip-poor-will (Antrostomus vociferus) are thought to be declining because of a range of potential factors including habitat loss, pesticide use, and predation. However, this species is nocturnal and, as a consequence, it is poorly studied, and its population status is not well assessed by traditional diurnal bird surveys. We used nocturnal road surveys to...
Authors
Christina L. Slover, Todd E. Katzner
Gopherus agassizii (Mohave Desert Tortoise). Probable rattlesnake envenomation Gopherus agassizii (Mohave Desert Tortoise). Probable rattlesnake envenomation
No abstract available.
Authors
Kristin H. Berry, Timothy A. Shields, Elliott R. Jacobson
Rare alluvial sands of El Monte Valley, California (San Diego County), support high herpetofaunal species richness and diversity, despite severe habitat disturbance Rare alluvial sands of El Monte Valley, California (San Diego County), support high herpetofaunal species richness and diversity, despite severe habitat disturbance
We characterized the species richness, diversity, and distribution of amphibians and reptiles inhabiting El Monte Valley, a heavily disturbed, alluvium-filled basin within the lower San Diego River in Lakeside, California. This rare habitat type in coastal southern California is designated as a critical sand resource by the state of California and is currently under consideration for a...
Authors
Jonathan Q. Richmond, Carlton J. Rochester, Nathan W. Smith, Jeffrey A. Nordland, Robert N. Fisher
Modeling the effects of tile drain placement on the hydrologic function of farmed prairie wetlands Modeling the effects of tile drain placement on the hydrologic function of farmed prairie wetlands
The early 2000s saw large increases in agricultural tile drainage in the eastern Dakotas of North America. Agricultural practices that drain wetlands directly are sometimes limited by wetland protection programs. Little is known about the impacts of tile drainage beyond the delineated boundaries of wetlands in upland catchments that may be in agricultural production. A series of...
Authors
Brett Werner, John Tracy, W. Carter Johnson, Richard A. Voldseth, Glenn R. Guntenspergen, Bruce Millett
Enabling science support for better decision-making when responding to chemical spills Enabling science support for better decision-making when responding to chemical spills
Chemical spills and accidents contaminate the environment and disrupt societies and economies around the globe. In the United States there were approximately 172,000 chemical spills that affected US waterbodies from 2004 to 2014. More than 8000 of these spills involved non–petroleum-related chemicals. Traditional emergency responses or incident command structures (ICSs) that respond to...
Authors
Jennifer L. Weidhass, Andrea M. Dietrich, Nathan J. DeYonker, R. Ryan Dupont, William T. Foreman, Daniel Gallagher, Jennifer E. G. Gallagher, Andrew J. Whelton, William Alexander
Toward a national, sustained U.S. ecosystem assessment Toward a national, sustained U.S. ecosystem assessment
The massive investment of resources devoted to monitoring and assessment of economic and societal indicators in the United States is neither matched by nor linked to efforts to monitor and assess the ecosystem services and biodiversity that support economic and social well-being. Although national-scale assessments of biodiversity (1) and ecosystem indicators (2) have been undertaken...
Authors
Stephen T. Jackson, Clifford S. Duke, Stephanie E. Hampton, Katharine L. Jacobs, Lucas N. Joppa, Karim-Aly S. K. Kassam, Harold A. Mooney, Laura A. Ogden, Mary Ruckelshaus, Jason F. Shogren
Environmental implications of the use of sulfidic back-bay sediments for dune reconstruction — Lessons learned post Hurricane Sandy Environmental implications of the use of sulfidic back-bay sediments for dune reconstruction — Lessons learned post Hurricane Sandy
Some barrier-island dunes damaged or destroyed by Hurricane Sandy's storm surges in October 2012 have been reconstructed using sediments dredged from back bays. These sand-, clay-, and iron sulfide-rich sediments were used to make berm-like cores for the reconstructed dunes, which were then covered by beach sand. In November 2013, we sampled and analyzed partially weathered materials...
Authors
Geoffrey S. Plumlee, William Benzel, Todd M. Hoefen, Philip L. Hageman, Suzette A. Morman, Timothy J. Reilly, Monique Adams, Cyrus J. Berry, Jeffrey Fischer, Irene Fisher
Topographic and fire weather controls of fire refugia in forested ecosystems of northwestern North America Topographic and fire weather controls of fire refugia in forested ecosystems of northwestern North America
Fire refugia, sometimes referred to as fire islands, shadows, skips, residuals, or fire remnants, are an important element of the burn mosaic, but we lack a quantitative framework that links observations of fire refugia from different environmental contexts. Here, we develop and test a conceptual model for how predictability of fire refugia varies according to topographic complexity and...
Authors
Meg A. Krawchuk, Sandra L. Haire, Jonathan D. Coop, Marc-André Parisien, Ellen Whitman, Geneva W. Chong, Carol Miller