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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: 174766

Using neutral landscape models to evaluate the umbrella species concept in an ecotone Using neutral landscape models to evaluate the umbrella species concept in an ecotone

Context Steep declines in North American rangeland biodiversity have prompted researchers and managers to use umbrella species as a tool to manage diverse suites of co-occurring wildlife, but efficacy of this method has been variable. Evaluation of prairie and shrubland grouse as umbrellas is typically restricted to observed overlap between umbrella and background species, but this...
Authors
Courtney J. Duchardt, Adrian P. Monroe, David R. Edmunds, Matthew James Holloran, Alison G. Holloran, Cameron L. Aldridge

A conceptual framework for estimation of initial emergency food and water resource requirements in disasters A conceptual framework for estimation of initial emergency food and water resource requirements in disasters

Many households lack the necessary food and water supplies to sustain themselves for more than three days during a disaster. Community vulnerability assessments can be used to identify households with more pressing needs for emergency food and water resources. It is critical that these assessments include the interaction between physical impacts to lifeline infrastructure and the social
Authors
Joseph Charles Toland, Anne Wein, An-Min Wu, Lauryn Spearing

Inferring pathogen presence when sample misclassification and partial observation occur Inferring pathogen presence when sample misclassification and partial observation occur

Surveillance programmes are essential for detecting emerging pathogens and often rely on molecular methods to make inference about the presence of a target disease agent. However, molecular methods rarely detect target DNA perfectly. For example, molecular pathogen detection methods can result in misclassification (i.e. false positives and false negatives) or partial detection errors (i...
Authors
Evan H. Campbell Grant, Riley O. Mummah, Brittany A. Mosher, Jonah Evans, Graziella Vittoria DiRenzo

Model-based assessment and mapping of total phosphorus enrichment in rivers with sparse reference data Model-based assessment and mapping of total phosphorus enrichment in rivers with sparse reference data

Water nutrient management efforts are frequently coordinated across thousands of water bodies, leading to a need for spatially extensive information to facilitate decision making. Here we explore potential applications of a machine learning model of river low-flow total phosphorus (TP) concentrations to support landscape nutrient management. The model was trained, validated, and then...
Authors
Peter C. Esselman, R Jan Stevenson

Climate change and the global redistribution of biodiversity: Substantial variation in empirical support for expected range shifts Climate change and the global redistribution of biodiversity: Substantial variation in empirical support for expected range shifts

Background Among the most widely predicted climate change-related impacts to biodiversity are geographic range shifts, whereby species shift their spatial distribution to track their climate niches. A series of commonly articulated hypotheses have emerged in the scientific literature suggesting species are expected to shift their distributions to higher latitudes, greater elevations, and...
Authors
Madeleine A. Rubenstein, Sarah R. Weiskopf, Romain Bertrand, Shawn Carter, Lise Comte, Mitchell J. Eaton, Ciara G. Johnson, Jonathan Lenoir, Abigail Lynch, Brian W. Miller, Toni Lyn Morelli, Mari Angel Rodriguez, Adam Terando, Laura Thompson

Shorebird monitoring using spatially explicit occupancy and abundance Shorebird monitoring using spatially explicit occupancy and abundance

Loss of habitat and human disturbance are major factors in the worldwide decline of shorebird populations, including that of the threatened migratory piping plover (Charadrius melodus). From 2013 to 2018, we conducted land-based surveys of the shorebird community every other week during the peak piping plover season (September to March). We assessed the ability of a thin plate spline...
Authors
Eve Bohnett, Jessica Schulz, Robert C. Dobbs, Thomas Hoctor, Dave Hulse, Bilal Ahmad, Wajid Rashid, Hardin Waddle

A Fisherman's Tale: An unusual observation of the Ozark Cavefish, Troglichthys (= Amblyopsis) Rosae (Eigenmann) A Fisherman's Tale: An unusual observation of the Ozark Cavefish, Troglichthys (= Amblyopsis) Rosae (Eigenmann)

Troglichthys (= Amblyopsis) rosae (Ozark Cavefish) is currently known from 83 locations within the Ozark Highlands ecoregion. We found a cavefish at a new location in the Grand Lake O' the Cherokees on the western side of the Neosho River (Delaware County, OK), which is on the northwest periphery of the Ozark Cavefish range. Examination of the mitochondrial ND2 gene supports that the...
Authors
Joshua. B. Mouser, Josh Johnston, Matthew L. Niemiller, Shannon K. Brewer

Evaluating regional length limits in freshwater fisheries Evaluating regional length limits in freshwater fisheries

Length limits are often used in recreational fisheries management to prevent overharvest and manipulate fish size distributions. These regulations are ideally customized to meet water-specific stock dynamics and fishery objectives. However, in districts with numerous discrete waters, fisheries are commonly managed with a universal regional regulation. Evaluating alternative regional...
Authors
Andrew C. Shamaskin, Michael E. Colvin, Leandro E. Miranda

Climate change risks to freshwater subsistence fisheries in Arctic Alaska: Insights and uncertainty from broad whitefish Coregonus nasus Climate change risks to freshwater subsistence fisheries in Arctic Alaska: Insights and uncertainty from broad whitefish Coregonus nasus

Arctic freshwater ecosystems and fish populations are largely shaped by seasonal and long-term watershed hydrology. In this paper, we hypothesize how changing air temperature and precipitation will alter freeze and thaw processes, hydrology, and instream habitat to assess potential indirect effects, such as the change to the foraging and behavioral ecology, on Arctic fishes, using Broad...
Authors
Jason C. Leppi, Daniel J. Rinella, Mark S. Wipfli, Anna K. Liljedahl, Andrew C. Seitz, Jeffrey A. Falke

Effects of nitrate and conductivity on embryo-larval fathead minnows Effects of nitrate and conductivity on embryo-larval fathead minnows

Nitrate concentrations have been rising in surface waters over the last century and now frequently exceed drinking water standards and environmental safety benchmarks globally. Health-wise, these trends are concerning because nitrate has been shown to disrupt endocrine function and developmental outcomes. The present study investigated potential sublethal effects of nitrate on developing...
Authors
Thea M. Edwards, Daniel J. Lamm, Joel J. Harvey

Demographics and gross pathology of scoters and scaups killed by the Cosco Busan oil spill in California Demographics and gross pathology of scoters and scaups killed by the Cosco Busan oil spill in California

Unusual wildlife mortality events provide a unique opportunity to collect information on demographics, disease, and body condition in affected wildlife, which may be useful for informing oil spill damage assessments and future spill responses. In November 2007, the Cosco Busan Oil Spill occurred in San Francisco Bay, California, a globally important wintering area for waterfowl. The...
Authors
Jessie Beck, Ryan D. Carle, HannahRose M. Nevins, Susan E.W. De La Cruz, Erica Donnelly-Greenan
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