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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Snag dynamics and surface fuel loads in the Sierra Nevada: Predicting the impact of the 2012–2016 drought Snag dynamics and surface fuel loads in the Sierra Nevada: Predicting the impact of the 2012–2016 drought
Forest die-backs linked to extreme droughts are expected to increase as the climate dries and warms. An example is the 2012-2016 hotter drought in California that induced widespread tree mortality in the Sierra Nevada, California. The sudden increase in snags (i.e., standing dead trees) raised immediate concerns about their impact on wildfire hazard and longer-term questions about their...
Authors
Hudson Northrop, Jodi N. Axelson, Adrian Das, Nathan L. Stephenson, Emilio Vilanova, Scott L. Stephens, John J. Battles
Marginal value analysis reveals shifting importance of migration habitat for waterfowl under a changing climate Marginal value analysis reveals shifting importance of migration habitat for waterfowl under a changing climate
Migratory waterfowl are an important resource for consumptive and non-consumptive users alike and provide tremendous economic value in North America. These birds rely on a complex matrix of public and private land for forage and roosting during migration and wintering periods, and substantial conservation effort focuses on increasing the amount and quality of target habitat. Yet, the...
Authors
Ryan C. Burner, Benjamin Donald Golas, Kevin J. Aagaard, Eric V. Lonsdorf, Wayne E. Thogmartin
Creating oriented and precisely sectioned mineral mounts for in situ chemical analyses—An example using olivine for diffusion chronometry studies Creating oriented and precisely sectioned mineral mounts for in situ chemical analyses—An example using olivine for diffusion chronometry studies
Diffusion chronometry is now a widely applied methodology for determining the rates and timescales of geologic processes from the chemical zoning observed in minerals. Despite the popularity of the method, several challenges still remain during its application, including: (1) the random sectioning of minerals either in thin sections or grain mounts in which both off-center and oblique...
Authors
Kendra J. Lynn, Liliana G. Desmither
Effects of landcover on mesocarnivore density and detection rate along an urban to rural gradient Effects of landcover on mesocarnivore density and detection rate along an urban to rural gradient
Human development has major implications for wildlife populations. Urban-exploiter species can benefit from human subsidized resources, whereas urban-avoider species can vanish from wildlife communities in highly developed areas. Therefore, understanding how the density of different species varies in response to landcover changes associated with human development can provide important...
Authors
Leah McTigue, Brett Alexander DeGregorio
Shifted sediment-transport regimes by climate change and amplified hydrological variability in cryosphere-fed rivers Shifted sediment-transport regimes by climate change and amplified hydrological variability in cryosphere-fed rivers
Climate change affects cryosphere-fed rivers and alters seasonal sediment dynamics, affecting cyclical fluvial material supply and year-round water-food-energy provisions to downstream communities. Here, we demonstrate seasonal sediment-transport regime shifts from the 1960s to 2000s in four cryosphere-fed rivers characterized by glacial, nival, pluvial, and mixed regimes, respectively...
Authors
Tinghu Zhang, Dongfeng Li, Amy E. East, Albert J. Kettner, James L. Best, Jinren Ni, Xixi Lu
Alternative lifestyles: A plague persistence hypothesis Alternative lifestyles: A plague persistence hypothesis
Several explanations have been posited for how the plague bacterium (Yersinia pestis) reemerges during sylvatic cycles within the same foci over many years, and often without direct evidence of host die-offs. One prevalent view is that transmission-optimized Y. pestis bacteria, exhibiting epizootic/enzootic behavior, almost continually replicate and survive through repeated, linked, host...
Authors
Jeffrey Wimsatt, David A. Eads, Marc R. Matchett, Dean E. Biggins
Detection and quantification of preferential flow using artificial rainfall with multiple experimental approaches Detection and quantification of preferential flow using artificial rainfall with multiple experimental approaches
Preferential flow in the unsaturated zone strongly influences important hydrologic processes, such as infiltration, contaminant transport, and aquifer recharge. Because it entails various combinations of physical processes arising from the interactions of water, air, and solid particles in a porous medium, preferential flow is highly complex. Major research is needed to improve the...
Authors
Maria Clementina Caputo, Lorenzo De Carlo, Rita Masciale, Kimberlie Perkins, Antonietta Celeste Turturro, John R. Nimmo
Response of lake metabolism to catchment inputs inferred using high-frequency lake and stream data from across the northern hemisphere Response of lake metabolism to catchment inputs inferred using high-frequency lake and stream data from across the northern hemisphere
In lakes, the rates of gross primary production (GPP), ecosystem respiration (R), and net ecosystem production (NEP) are often controlled by resource availability. Herein, we explore how catchment vs. within lake predictors of metabolism compare using data from 16 lakes spanning 39°N to 64°N, a range of inflowing streams, and trophic status. For each lake, we combined stream loads of...
Authors
Jessica R. Corman, Jacob Aaron Zwart, Jennifer Klug, Denise A Bruesewitz, Elvira de Eyto, Marcus Klaus, Lesley B. Knoll, James A. Rusak, Michael J. Vanni, Maria Belen Alfonso, Rocio Luz Fernandez, Huaxia Yao, Kari Austnes, Raoul-Marie Couture, Heleen A. de Wit, Jan Karlsson, Alo Laas
Horizon scanning for potentially invasive non-native marine species to inform trans-boundary conservation management – Example of the northern Gulf of Mexico Horizon scanning for potentially invasive non-native marine species to inform trans-boundary conservation management – Example of the northern Gulf of Mexico
Prevention of non-native species introductions and establishment is essential to avoid adverse impacts of invasive species in marine environments. To identify potential new invasive species and inform non-native species management options for the northern Gulf of Mexico (Alabama, Mississippi, Louisiana, Texas), 138 marine species were risk screened for current and future climate...
Authors
Kathryn A. O’Shaughnessy, Lorenzo Vilizzi, Wesley M. Daniel, Monica E. McGarrity, Hanna Bauer, Leslie Hartman, Stephen Geiger, Paul Sammarco, Steve Kolian, Scott Porter, Jessica Dutton, Matthew R. McClure, Michael Norberg, Alex Fogg, Timothy J. Lyons, Justin Procopio, Lauren Bantista, Wayne A Bennett, Mary Wicksten, David B. Reeves, Julie Lively, Elizabeth M. Robinson, Jorge Brenner, Joseph Goy, Ashley Morgan-Olvera, Anna L.E. Yunnie, Gordon H. Copp
Georectified polygon database of ground-mounted large-scale solar photovoltaic sites in the United States Georectified polygon database of ground-mounted large-scale solar photovoltaic sites in the United States
Over 4,400 large-scale solar photovoltaic (LSPV) facilities operate in the United States as of December 2021, representing more than 60 gigawatts of electric energy capacity. Of these, over 3,900 are ground-mounted LSPV facilities with capacities of 1 MWdc or more. Ground mounted LSPV installations continue increasing, with more than 400 projects appearing online in 2021 alone; however...
Authors
K. Sydny Fujita, Zachary H. Ancona, Louisa Kramer, Mary Straka, Tandie E. Gautreau, Dana Robson, Christopher P. Garrity, Ben Hoen, James E. Diffendorfer
Monitoring Avian Productivity and Survivorship (MAPS) 6-year summary, Naval Outlying Landing Field, Imperial Beach, southwestern San Diego County, California, 2014–20 Monitoring Avian Productivity and Survivorship (MAPS) 6-year summary, Naval Outlying Landing Field, Imperial Beach, southwestern San Diego County, California, 2014–20
Executive Summary From 2014 to 2020, a Monitoring Avian Productivity and Survivorship (MAPS) banding station (station) was operated at the Naval Outlying Landing Field (NOLF), Imperial Beach, in southwestern San Diego County, California. The station was established as part of a long-term monitoring program of Neotropical migratory bird populations on NOLF and helps Naval Base Coronado...
Authors
Suellen Lynn, Shannon M. Mendia, Barbara E. Kus
Development and application of a risk assessment tool for aquatic invasive species in the international Rainy-Lake of the Woods Basin, United States and Canada Development and application of a risk assessment tool for aquatic invasive species in the international Rainy-Lake of the Woods Basin, United States and Canada
The Rainy-Lake of the Woods Basin covers 70,000 square kilometers in mid-central North America and is contained within the Provinces of Ontario and Manitoba in Canada and the State of Minnesota in the United States. This basin contains natural wilderness areas, national parks, and thousands of lakes that bring outdoor enthusiasts from around the world for hunting, fishing, backpacking...
Authors
Amanda H. Bell, Leon R. Katona, Nicole M. Vellequette