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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: 175547

Applying the resist-accept-direct (RAD) framework to wildlife health management Applying the resist-accept-direct (RAD) framework to wildlife health management

Wildlife diseases can have substantial impacts on wildlife populations as well as on human and domestic animal health and well-being. Although many agencies and stakeholders share a goal of supporting wildlife health, reducing wildlife disease burden is complicated by a scarcity of effective interventions for wildlife, competition for funds, and conflicting priorities. As a result...
Authors
Wynne Emily Moss, Gregor W. Schuurman, Emily S. Almberg, Danielle Buttke, Nathan L. Galloway, Samantha E.J. Gibbs, Anne Hubbs, Katherine Richgels, C. LeAnn White, Paul C. Cross

Hydraulic connectivity and hydrochemistry influence microbial community structure in agriculturally-affected alluvial aquifers in the Midwestern United States Hydraulic connectivity and hydrochemistry influence microbial community structure in agriculturally-affected alluvial aquifers in the Midwestern United States

Alluvial aquifers can provide ecosystem services and drinking water, but much remains unknown about human effects on aquifer microbiomes. Therefore, we used amplicon sequencing and hydrochemical characterization to pair microbial communities with environmental conditions across 37 alluvial aquifer wells. The study region spanned eastern Iowa and southern Minnesota (USA) and contained a...
Authors
Hunter Schroer, Kendra M. Markland, Fangqiong Ling, Craig L. Just

Assimilation of reduced carbon triggers platinum alloy saturation in mafic and ultramafic magmas Assimilation of reduced carbon triggers platinum alloy saturation in mafic and ultramafic magmas

It is generally observed that magmatic sulfide ores have higher ratios of Pd/Pt than the mantle-like values of their parental magmas. This discrepancy has defied simple explanation because the partitioning behavior of both elements between sulfide and silicate liquids is very similar. Assimilation of sulfur- and carbon-rich country rocks by mafic and ultramafic magmas is considered a...
Authors
Ying Zhou Li, William D. Smith, Michael Jenkins, Zhuosen Yao, James E. Mungall

A generalized deep learning model to detect and classify volcano seismicity A generalized deep learning model to detect and classify volcano seismicity

Volcano seismicity is often detected and classified based on its spectral properties. However, the wide variety of volcano seismic signals and increasing amounts of data make accurate, consistent, and efficient detection and classification challenging. Machine learning (ML) has proven very effective at detecting and classifying tectonic seismicity, particularly using Convolutional Neural...
Authors
David Fee, Darren Tan, John J. Lyons, Mariangela Sciotto, Andrea Cannata, Alicia J. Hotovec-Ellis, Tarsilo Girona, Aaron Wech, Diana Roman, Matthew M. Haney, Silvio De Angelis

Evaluating the influence of constructed subtidal reefs on marsh shoreline erosion, sediment deposition, and wave energy Evaluating the influence of constructed subtidal reefs on marsh shoreline erosion, sediment deposition, and wave energy

Salt marshes play a critical role in providing economic and ecological benefits but are susceptible to shoreline erosion. Natural and nature-based features (NNBF), such as breakwater reefs, are often used to reduce shoreline exposure to wave action and provide biogenic benefits. However, waves and water level are also responsible for the sediment supply necessary for marsh accretion, a...
Authors
Kathryn E.L. Smith, Jonathan L. Pitchford, Eric L. Sparks, Michael J. Archer, Matthew Virden, Joseph F. Terrano, Christopher G. Smith

Risk implications of Poisson assumptions and declustering inferred from a fully time-dependent earthquake forecast Risk implications of Poisson assumptions and declustering inferred from a fully time-dependent earthquake forecast

We use the Third Uniform California Earthquake Rupture Forecast Epidemic Type Aftershock Sequence model, which is fully time-dependent in terms of including spatiotemporal clustering, to evaluate the effects of the Poisson assumption and declustering algorithms on statewide loss exceedance curves. The model is simulation based, meaning it produces synthetic catalogs that exhibit...
Authors
Edward H. Field, Kevin Ross Milner, Keith A. Porter
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