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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The Mojave section of the San Andreas fault (California), 1: Shaping the terrace stratigraphy of Littlerock Creek through the competition between rapid strike-slip faulting and lateral stream erosion over the last 40ka. The Mojave section of the San Andreas fault (California), 1: Shaping the terrace stratigraphy of Littlerock Creek through the competition between rapid strike-slip faulting and lateral stream erosion over the last 40ka.
To determine the post-40 ka slip-rate along the Mojave section of the San Andreas Fault (MSAF) we re-analyze the sedimentary record preserved where Little Rock (LR) Creek flows across the fault. At this location, interaction between the northeast-flowing stream and right-lateral fault has resulted in the abandonment and preservation of 11 strath terraces and one paleo-floodplain in the...
Authors
Adrien Moulin, Eric Cowgill, Katherine M. Scharer, Devin McPhillips, Arjun Heimsath
Using the electron transport system as an indicator of organismal thermal tolerance and respiratory exploitation Using the electron transport system as an indicator of organismal thermal tolerance and respiratory exploitation
Freshwater ecosystems are undergoing rapid thermal shifts, making it increasingly important to understand species-specific responses to these changes. Traditional techniques for determining a species’ thermal tolerance are often lethal and time consuming. Using the enzyme activity associated with the electron transport system (ETS; hereafter referred to as enzyme assay) may provide a non...
Authors
Ehlana G. Stell, Shannon K. Brewer, Lindsay M. Horne, Russell A. Wright, Dennis R. DeVries
Arsenic, chromium, uranium, and vanadium in rock, alluvium, and groundwater, Mojave River and Morongo Areas, western Mojave Desert, southern California Arsenic, chromium, uranium, and vanadium in rock, alluvium, and groundwater, Mojave River and Morongo Areas, western Mojave Desert, southern California
Trace elements within groundwater that originate from aquifer materials and pose potential public-health hazards if consumed are known as geogenic contaminants. The geogenic contaminants arsenic, chromium, and vanadium can form negatively charged ions with oxygen known as oxyanions. Uranium complexes with bicarbonate and carbonate to form negatively charged ions having aqueous chemistry...
Authors
John A. Izbicki, Krishangi D. Groover, Whitney A. Seymour
Target and suspect per- and polyfluoroalkyl substances in fish from an AFFF-impacted waterway Target and suspect per- and polyfluoroalkyl substances in fish from an AFFF-impacted waterway
A major source of toxic per- and polyfluoroalkyl substances (PFAS) is aqueous film-forming foams (AFFF) used in firefighting and training at airports and military installations, however, PFAS have many additional sources in consumer products and industrial processes. A field study was conducted on fish tissues from three reaches of the Columbia Slough, located near Portland International...
Authors
Elena Nilsen, Derek J. Muensterman, Lya Carini, Ian R. Waite, Sean E. Payne, Jennifer Field, Jennifer L Peterson, Daniel Hafley, David Farrer, Gerrad D Jones
The 1886 Charleston, South Carolina, Earthquake: Relic railroad offset reveals rupture The 1886 Charleston, South Carolina, Earthquake: Relic railroad offset reveals rupture
In the absence of documented surface rupture during the 1 September 1886 Charleston earthquake, there has been considerable speculation about the location and mechanism of the causative fault. We use an inferred coseismic offset of the South Carolina Railroad and additional numerical constraints to develop an elastic deformation model—a west‐dipping fault following strands of two...
Authors
Roger Bilham, Susan E. Hough
Yellowstone Cutthroat Trout recovery in Yellowstone Lake: Complex interactions among invasive species suppression, disease, and climate change Yellowstone Cutthroat Trout recovery in Yellowstone Lake: Complex interactions among invasive species suppression, disease, and climate change
In Yellowstone Lake, Wyoming, the largest inland population of nonhybridized Yellowstone Cutthroat Trout Oncorhynchus clarkii bouvieri, hereafter Cutthroat Trout, declined throughout the 2000s because of predation from invasive Lake Trout Salvelinus namaycush, drought, and whirling disease Myxobolus cerebralis. To maintain ecosystem function and conserve Cutthroat Trout, a Lake Trout...
Authors
Hayley Corrine Glassic, David Chagaris, Christopher S. Guy, Lusha M. Tronstad, Dominique R. Lujan, Michelle A. Briggs, Lindsey K. Albertson, Travis O. Brenden, Timothy E. Walsworth, Todd M. Koel
Warming experiments test the temperature sensitivity of an endangered butterfly across life history stages Warming experiments test the temperature sensitivity of an endangered butterfly across life history stages
The Karner blue butterfly (Lycaeides melissa samuelis) (hereafter Karner blue) is a federally listed endangered species occurring in disjunct locations within the Midwest and Eastern United States. As a hostplant specialist and an ectotherm, the Karner blue is likely to be susceptible to effects of climate change. We undertook warming experiments to explore the temperature sensitivity of...
Authors
Lainey Bristow, Ralph Grundel, Jason Dzurisin, Yudi Li, Andrew Hildreth, Jessica Hellmann
BatTool: Projecting bat populations facing multiple stressors using a demographic model BatTool: Projecting bat populations facing multiple stressors using a demographic model
Bats provide ecologically and agriculturally important ecosystem services but are currently experiencing population declines caused by multiple environmental stressors, including mortality from white-nose syndrome and wind energy development. Analyses of the current and future health and viability of these species may support conservation management decision making. Demographic modeling...
Authors
Ashton M. Wiens, Amber Schorg, Jennifer Szymanski, Wayne E. Thogmartin
Snowpack relative permittivity and density derived from near-coincident lidar and ground-penetrating radar Snowpack relative permittivity and density derived from near-coincident lidar and ground-penetrating radar
Depth-based and radar-based remote sensing methods (e.g., lidar, synthetic aperture radar) are promising approaches for remotely measuring snow water equivalent (SWE) at high spatial resolution. These approaches require snow density estimates, obtained from in-situ measurements or density models, to calculate SWE. However, in-situ measurements are operationally limited, and few density...
Authors
Randall Bonnell, Daniel McGrath, Andrew Hedrick, Ernesto Trujillo, Tate Meehan, Keith Williams, Hans-Peter Marshall, Graham A. Sexstone, John W, Fulton, Michael Ronayne, Steven R. Fassnacht, Ryan Webb, Katherine Hale
Cultivating resilience in dryland soils: An assisted migration approach to biological soil crust restoration Cultivating resilience in dryland soils: An assisted migration approach to biological soil crust restoration
Land use practices and climate change have driven substantial soil degradation across global drylands, impacting ecosystem functions and human livelihoods. Biological soil crusts, a common feature of dryland ecosystems, are under extensive exploration for their potential to restore the stability and fertility of degraded soils through the development of inoculants. However, stressful...
Authors
Sierra Jech, Natalie K. Day, Nichole Barger, Anita Antoninka, Matthew A. Bowker, Sasha C. Reed, Colin L Tucker
Seven dam challenges for migratory fish: Insights from the Penobscot River Seven dam challenges for migratory fish: Insights from the Penobscot River
More than a century of impoundments in the Penobscot River, Maine, USA, has contributed to population declines in migratory fish in the system. A decade of change, research, and monitoring has revealed direct and indirect ways that dams have influenced the river habitat, connectivity for migratory fish, and the food web. The removal of two main-stem dams (in 2012 and 2013) and bolstering...
Authors
Joseph D. Zydlewski, Stephen M. Coghlan, Cody Dillingham, Guillermo Figueroa-Munoz, Carolyn Merriam, Sean Smith, Rylee Smith, Daniel S. Stich, Sarah K. Vogel, Karen Wilson, Gayle B. Zydlewski
Evaluation of breeding distribution and chronology of North American scoters Evaluation of breeding distribution and chronology of North American scoters
North America's scoter species are poorly monitored relative to other waterfowl. Black Melanitta americana, surf M. perspicillata, and white-winged M. deglandi scoter abundance and trend estimates are thus uncertain in many parts of these species' ranges. The most extensive source of waterfowl abundance and distribution data in North America is the Waterfowl breeding population and...
Authors
Kristin Bianchini, Scott G. Gilliland, Alicia Berlin, Timothy D. Bowman, W. Sean Boyd, Susan E.W. De La Cruz, Daniel Esler, Joseph R. Evenson, Paul L. Flint, Christine Lepage, Scott R. McWilliams, Dustin E. Meattey, Jason E. Osenkowski, Matthew Perry, Jean-Francois Poulin, Eric T. Reed, Christian Roy, Jean-Pierre L. Savard, Lucas Savoy, Jason L Schamber, Caleb S. Spiegel, John Takekawa, David H. Ward, Mark L. Mallory