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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: 175495

Testing spatial out-of-sample area of influence for grain forecasting models Testing spatial out-of-sample area of influence for grain forecasting models

We examine the factors that determine if a grain forecasting model fit to one region can be transferred to another region. Prior research has proposed examining the area of applicability (AoA) of a model based on structurally similar characteristics in the Earth Observation predictors and weights based on the model derived feature importance. We expand on and evaluate this approach in...
Authors
Frank Davenport, Donghoon Lee, Shraddhanand Shukla, Greg Husak, W. Chris Funk, Michael Budde, James Rowland

Glucocorticoid and glycemic responses to immune challenge in a viviparous snake afflicted with an emerging mycosis Glucocorticoid and glycemic responses to immune challenge in a viviparous snake afflicted with an emerging mycosis

Disease may be both a cause and consequence of stress, and physiological responses to infectious disease may involve stress coping mechanisms that have important fitness consequences. For example, glucocorticoid and glycemic responses may affect host fitness by altering resource allocation and use in hosts, and these responses may be affected by competing stressors. To better understand...
Authors
Craig M. Lind, Joseph Agugliaro, Jason Ortega, Jenna N. Palmisano, Jeffrey M. Lorch, Tran Truong, Terence M. Farrell

Distributed volcanism—Characteristics, processes, and hazards Distributed volcanism—Characteristics, processes, and hazards

Introduction Distributed volcanism is defined by regions of dominantly, but not exclusively, monogenetic eruptive vents that are commonly mafic. Volcanic eruptions within distributed fields can range in composition from basalt to rhyolite and produce all types of volcanoes in all tectonic environments. This diversity in eruption composition and style reflects complex and varied magma...

Temporal, spatial, and chemical evolution of Quaternary high-silica rhyolites in the Mineral Mountains, Utah Temporal, spatial, and chemical evolution of Quaternary high-silica rhyolites in the Mineral Mountains, Utah

The Mineral Mountains in southwestern Utah are a structurally controlled core complex at the confluence of the Colorado Plateau and the Basin and Range physiographic provinces. Aside from hosting Utah’s largest batholith, the Mineral Mountains host some of the State’s youngest high-silica rhyolites, which have been linked to a magma source that is presently being utilized as an enhanced...
Authors
Tiffany A. Rivera, Brian R. Jicha, Stefan Kirby, Hannah B. Peacock

Vortex trapping of suspended sand grains over ripples Vortex trapping of suspended sand grains over ripples

Coastal hydrodynamics and morphodynamics integrate the effects of small-scale fluid-sediment interactions; yet, these small-scale processes are not well understood. To investigate sediment trapping by turbulent coherent structures or vortices, the transport of coarse sand over ripples was analyzed in a small-oscillatory flow tunnel with phase-separated Particle Image and Tracking...
Authors
Donya P. Frank-Gilchrist, Allison M. Penko, Margaret L. Palmsten, Joseph Calantoni

Detection and transport of environmental DNA from two federally endangered mussels Detection and transport of environmental DNA from two federally endangered mussels

Environmental DNA (eDNA) offers a novel approach to supplement traditional surveys and provide increased spatial and temporal information on species detection, and it can be especially beneficial for detecting at risk or threatened species with minimal impact on the target species. The transport of eDNA in lotic environments is an important component in providing more informed...
Authors
Brandon James Sansom, Dannise Vannesa Ruiz-Ramos, Nathan Thompson, Maura O Roberts, Zachary Taylor, Katie Ortiz, Jess W. Jones, Catherine A. Richter, Katy E. Klymus
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