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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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We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.

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Filter Total Items: 175939

Streamflow and surface-water presence data availability across the conterminous United States: A review for headwater systems Streamflow and surface-water presence data availability across the conterminous United States: A review for headwater systems

Water is essential for life on Earth, supporting ecosystems, human health, and economic activities. Hydrology relies on observational data, and this paper discusses regional and national datasets for the conterminous United States (CONUS) publicly available as of 2023, focusing on headwaters, defined as first- and second-order streams at 1:24000 scale. It identifies 72 primary and...
Authors
Roy Sando, Kristin Jaeger, Christa Kelleher, John C. Hammond, Jay R. Christensen, Catalina Segura, Heather E. Golden, Frederick Y. Cheng, Admin Husic, C. Nathan Jones, Charles R. Lane, Li Li, D. Tyler Mahoney, Hillary McMillan, Adam N. Price, Erin C. Seybold, Adam Ward, Margaret Zimmer, Steven James Pestana
By
Wyoming-Montana Water Science Center

PFAS mixture composition and internal exposure profiles shape biological responses under field-realistic exposure PFAS mixture composition and internal exposure profiles shape biological responses under field-realistic exposure

Per- and polyfluoroalkyl substances (PFAS) occur as complex mixtures, yet mixture-dependent biological effects under environmentally realistic exposure conditions remain poorly understood. We conducted multiyear (2018, 2019, 2021) continuous-flow, field-based exposures of male fathead minnows (Pimephales promelas) using a low-PFAS reference well (REF; sum of measured PFAS (∑PFAS) 0.1–0.2...
Authors
Alan M. Vajda, Jill Jenkins, David Bertolatus, Denis R. LeBlanc, Christopher J. Martyniuk, Zachary Ryan Hopkins, Andrea K. Tokranov, A. R. Dethloff, Joseph C. Tucker, Rainer Lohmann, Larry B. Barber
By
Water Resources Mission Area

Effects of warming on growth and leaf colonization by litter mat-forming fungi in a wet tropical forest in Puerto Rico Effects of warming on growth and leaf colonization by litter mat-forming fungi in a wet tropical forest in Puerto Rico

Wet tropical forests are experiencing rising temperatures and increased frequency and intensity of extreme climatic events, such as cyclones, which can increase rates of soil erosion and surface runoff. Fungal litter mats, formed by agaric decomposer fungi, play a crucial role in stabilizing slopes, preventing erosion, and aiding nutrient cycling; however, little is known about how...
Authors
Ari E. Puentes, D. Jean Lodge, Deyaneira A. Ortiz-Iglesias, Tatiana Barreto-Vélez, Laura C. Rubio-Lebrón, Hieu P. Chu, Christine S. O'Connell, Sasha C. Reed, Tana E. Wood
By
Ecosystems Mission Area, Southwest Biological Science Center

Lowland tropical forests remain a methane sink under warming and long-term hurricane disturbance recovery Lowland tropical forests remain a methane sink under warming and long-term hurricane disturbance recovery

Methane (CH4) is a potent greenhouse gas, and tropical forests account for roughly one–third of global atmospheric CH4 uptake by soils. Projected warming and more frequent hurricanes in these ecosystems may alter soil CH4 sink strength, as warmer and wetter soils enhance methanogenesis activity. We measured soil CH4 and CO2 efflux during the calendar summer months of 2023 and 2024...
Authors
Gabriele Larocca Conte, Lucia Zuvela, Rachel Cruz-Perez, Tatiana Barreto-Vélez, Nibia Becerra-Santillan, Sophia F. Campbell, Hieu P. Chu, Trung Dam, Iana F. Grullón-Penkova, Miriam Kleit, Deyaneira A. Ortiz-Iglesias, Laura C. Rubio-Lebrón, Molly A. Cavaleri, Sasha C. Reed, Debjani Sihi, Tana E. Wood, Christine S. O'Connell
By
Ecosystems Mission Area, Southwest Biological Science Center

Putting weight to work: A review and examples of weight-based indicators in freshwater fish stock assessment Putting weight to work: A review and examples of weight-based indicators in freshwater fish stock assessment

Despite being a direct measure of biomass and central to fisheries management, weight-based metrics remain underutilized in freshwater fish stock assessment. Here, we present a concise review of the application of weight in evaluating freshwater fish populations. We examine the historical use of weighing, assess how weight is applied across subdisciplines of freshwater fish science...
Authors
Leandro E. Miranda, Mirtha A. Angulo-Valencia, Camren E. Fraser
By
Cooperative Research Units

Colonization of southern flying squirrels (Glaucomys volans) to urban Nebraska: Range expansion or human assisted translocation? Colonization of southern flying squirrels (Glaucomys volans) to urban Nebraska: Range expansion or human assisted translocation?

Southern flying squirrels (Glaucomys volans; Linnaeus 1758) were first observed in Lincoln, Nebraska, in 2018, 80 km north of their described range. Given that southern flying squirrels are a species of concern within Nebraska, determining the origin of this new population (natural expansion or pet-trade) garnered interest from state biologists. Further, the recent colonization of...
Authors
Jennifer Wettschreck, James A. Wilson, Robert E. Wilson, Abby May, Megan Cary, Jeffrey Huebschman, Sarah A. Sonsthagen
By
Cooperative Research Units
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