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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 65,000 articles authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Getting ahead of flash drought: From early warning to early action Getting ahead of flash drought: From early warning to early action
Flash droughts, characterized by their unusually rapid intensification, have garnered increasing attention within the weather, climate, agriculture, and ecological communities in recent years due to their large environmental and socioeconomic impacts. Because flash droughts intensify quickly, they require different early warning capabilities and management approaches than are typically...
Authors
Jason Otkin, Molly Woloszyn, Hailan Wang, Mark Svoboda, Marina Skumanich, Roger Pulwarty, Joel Lisonbee, Andrew Hoell, Mike Hobbins, Tonya Haigh, Amanda E. Cravens
Industrial particulate pollution and historical land use contribute metals of concern to dust deposited in neighborhoods along the Wasatch Front, UT, USA Industrial particulate pollution and historical land use contribute metals of concern to dust deposited in neighborhoods along the Wasatch Front, UT, USA
The Salt Lake Valley, UT, USA, is proximal to the desiccating Great Salt Lake (GSL). Prior work has found that this lakebed/playa contributes metals-laden dust to snow in the Wasatch and Uinta Mountains. Dust and industrial particulate pollution are also delivered to communities along the Wasatch Front, but their sources, compositions, and fluxes are poorly characterized. In this study...
Authors
Annie L. Putman, Daniel K. Jones, Molly A. Blakowski, Destry N. DiViesti, Scott Hynek, Diego P. Fernandez, Danielle Mendoza
Using active source seismology to image the Palos Verdes Fault damage zone as a function of distance, depth, and geology Using active source seismology to image the Palos Verdes Fault damage zone as a function of distance, depth, and geology
Fault damage zones provide a window into the non-elastic processes of an earthquake. Geological and seismic tomography methods have been unable to measure damage zones at depth with sufficient spatial sampling to evaluate the relative influence of depth, distance, and lithological variations. Here, we identify and analyze the damage zone of the Palos Verdes Fault offshore southern...
Authors
Travis Alongi, Emily Brodsky, Jared W. Kluesner, Daniel S. Brothers
Agricultural land use shapes dispersal in white-tailed deer (Odocoileus virginianus) Agricultural land use shapes dispersal in white-tailed deer (Odocoileus virginianus)
Background Dispersal is a fundamental process to animal population dynamics and gene flow. In white-tailed deer (WTD; Odocoileus virginianus), dispersal also presents an increasingly relevant risk for the spread of infectious diseases. Across their wide range, WTD dispersal is believed to be driven by a suite of landscape and host behavioral factors, but these can vary by region, season...
Authors
Marie L. J. Gilbertson, Alison Ketz, Matthew Hunsaker, Dana Jarosinski, Wesley Ellarson, Daniel P. Walsh, Daniel J. Storm, Wendy Christine Turner
Cause of death, pathology, and chronic wasting disease status of white-tailed deer (Odocoileus virginianus) mortalities in Wisconsin Cause of death, pathology, and chronic wasting disease status of white-tailed deer (Odocoileus virginianus) mortalities in Wisconsin
White-tailed deer (WTD; Odocoileus virginianus) are a critical species for ecosystem function and wildlife management. As such, studies of cause-specific mortality among WTD have long been used to understand population dynamics. However, detailed pathological information is rarely documented for free-ranging WTD, especially in regions with a high prevalence of chronic wasting disease...
Authors
Marie L.J. Gilbertson, Ellen E. Brandell, Marie E. Pinkerton, Nicolette M. Meaux, Matthew Hunsaker, Dana Jarosinski, Wesley Ellarson, Daniel P. Walsh, Daniel J. Storm, Wendy Christine Turner
Geomorphology shapes relationships between animal communities and ecosystem function in large rivers Geomorphology shapes relationships between animal communities and ecosystem function in large rivers
Understanding how the Earth's surface (i.e. ‘nature's stage') influences connections between biodiversity and ecosystem function (BEF) is a central objective in ecology. Despite recent calls to examine these connections at multiple trophic levels and at more complex and realistic scales, little is known about how landscape structure shapes BEF relationships among animal communities in...
Authors
Eric A. Scholl, Wyatt F. Cross, Christopher S. Guy
Predictions and drivers of sub-reach-scale annual streamflow permanence for the upper Missouri River basin: 1989-2018 Predictions and drivers of sub-reach-scale annual streamflow permanence for the upper Missouri River basin: 1989-2018
The presence of year-round surface water in streams (i.e., streamflow permanence) is an important factor for identifying aquatic habitat availability, determining the regulatory status of streams, managing land use change, allocating water resources, and designing scientific studies. However, accurate, high resolution, and dynamic prediction of streamflow permanence that accounts for...
Authors
Roy Sando, Kristin L. Jaeger, William H. Farmer, Theodore B. Barnhart, Ryan R. McShane, Toby L. Welborn, Kendra E. Kaiser, Konrad Hafen, Kyle W. Blasch, Benjamin C. York, Alden Shallcross
High-precision ID-TIMS U-Pb geochronology of perovskite (CaTiO3) from the Ice River Complex, southeastern British Columbia High-precision ID-TIMS U-Pb geochronology of perovskite (CaTiO3) from the Ice River Complex, southeastern British Columbia
Uranium‑lead perovskite in situ geochronology has become a cornerstone technique for determining the emplacement timing of alkaline, ultrapotassic, and silica-undersaturated igneous rocks, kimberlites, and carbonatites. Accurate in situ dates are dependent on the availability of matrix matched mineral reference materials which themselves are chemically well characterized and dated...
Authors
Seth D. Burgess, Larry M Heaman, Samuel A. Bowring
Autumn precipitation: The competition with Santa Ana winds in determining fire outcomes in southern California Autumn precipitation: The competition with Santa Ana winds in determining fire outcomes in southern California
Background: California’s South Coast has experienced peak burned area in autumn. Following typically dry, warm summers, precipitation events and Santa Ana winds (SAWs) each occur with increasing frequency from autumn to winter and may affect fire outcomes. Aims: We investigate historical records to understand how these counteracting influences have affected fires. Methods: We defined...
Authors
Daniel R. Cayan, Laurel DeHaan, Alexander Gershunov, Janin Guzman-Morales, Jon Keeley, Joshua Mumford, Alexandra D. Syphard
Actionable social science can guide community level wildfire solutions. An illustration from North Central Washington, US Actionable social science can guide community level wildfire solutions. An illustration from North Central Washington, US
In this study we illustrate the value of social data compiled at the community scale to guide a local wildfire mitigation and education effort. The four contiguous fire-prone study communities in North Central Washington, US, fall within the same jurisdictional fire service boundary and within one US census block group. Across the four communities, similar attitudes toward wildfire were...
Authors
Patricia A. Champ, Hannah Brenkert-Smith, Jonathan P Riley, James R. Meldrum, Colleen Donovan, Christopher M. Barth, Carolyn J Wagner
Thermal performance of the electron transport system Complex III in seven Alabama fishes Thermal performance of the electron transport system Complex III in seven Alabama fishes
Management of fish populations for conservation in thermally variable systems requires an understanding of the fish's underlying physiology and responses to thermal stress. Physiological research at the organismal level provides information on the overall effects of stressors such as extreme temperature fluctuations. While experiments with whole organisms provide information as to the...
Authors
Lindsay Horne, Dennis DeVries, Russell Wright, Elise R. Irwin, Benjamin Staton, Hisham Abdelrahman, James Stoeckel
Microbiomes associated with avian malaria survival differ between susceptible Hawaiian honeycreepers and sympatric malaria-resistant introduced birds Microbiomes associated with avian malaria survival differ between susceptible Hawaiian honeycreepers and sympatric malaria-resistant introduced birds
Of the estimated 55 Hawaiian honeycreepers (subfamily Carduelinae) only 17 species remain, nine of which the International Union for Conservation of Nature considers endangered. Among the most pressing threats to honeycreeper survival is avian malaria, caused by the introduced blood parasite Plasmodium relictum, which is increasing in distribution in Hawaiʻi as a result of climate change
Authors
Amanda K Navine, Kristina L. Paxton, Eben H. Paxton, Patrick J. Hart, Jeffrey T. Foster, Nancy McInerney, Robert C. Fleischer, Elin Videvall