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.
Mission Area Publications
Mission Area Publications
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.
Filter Total Items: 171795
Precaldera mafic magmatism at Long Valley, California: Magma-tectonic siting and incubation of the Great Rhyolite System
The iconic volcanic center at Long Valley has released ∼820 km3 of rhyolite in at least 110 eruptions. From 2.2 Ma until 0.23 Ma, products were exclusively rhyolitic, and ∼ 700 km3 were high-silica rhyolite severely depleted in Sr, Ba, and Eu. The rhyolitic interval was preceded by an interval from 3.9 to 2.6 Ma with numerous basalt-andesite-dacite eruptions accompanied by no rhyolite at all. We h
Authors
Edward Hildreth, Judith E. Fierstein, Andrew T. Calvert
Magma storage and transport timescales for the 1959 Kīlauea Iki eruption and implications for diffusion chronometry studies using time-series samples versus tephra deposits
Complex crystal cargo in basaltic eruptions has the potential to yield diverse insights on pre- and syn-eruptive timescales of magma storage and transport. Research on eruption products from the 1959 eruption from Kīlauea Iki Crater at Kīlauea volcano (Hawai‘i) demonstrates that time-series samples collected during an eruption can yield a wealth of information not accessible by studying the fall d
Authors
Kendra J. Lynn, Rosalind L. Helz
Evaluating the sensitivity of multi-dimensional model predictions of salmon habitat to the source of remotely sensed river bathymetry
Multi-dimensional numerical models are fundamental tools for investigating biophysical processes in aquatic ecosystems. Remote sensing techniques increase the feasibility of applying such models at riverscape scales, but tests of model performance on large rivers have been limited. We evaluated the potential to develop two-dimensional (2D) and three-dimensional (3D) hydrodynamic models for a 1.6-k
Authors
Lee R. Harrison, Carl J. Legleiter, Vamsi K Sridharana, Peter Dudley, Miles E. Daniels
Environmental monitoring for invasive fungal pathogens of ʽŌhiʽa (Metrosideros polymorpha) on the Island of Hawaiʽi
The invasive rust Austropuccina psidii was detected in the Hawaiian Islands in 2005 and has become widely established throughout the archipelago in both native and introduced species of Myrtaceae. Initial predictions about the impacts of the fungus on native ʽōhiʽa lehua (Metrosideros polymorpha), a keystone native tree, have not materialized, but there is ongoing concern that introductions of new
Authors
Carter T. Atkinson, Kylle Roy
Partnering in search of answers: Seabird die-offs in the Bering and Chukchi Seas
Prior to 2015, seabird die-offs in Alaskan waters were rare; they typically occurred in mid-winter, linked to epizootic disease events or above-average ocean temperatures associated with strong El Nino-Southern Oscillation events (Bodenstein et al. 2015, Jones et al. 2019, Romano et al. 2020). Since 2015, the U.S. Fish and Wildlife Service (USFWS) has monitored mortality events that have become an
Authors
Robb A. S. Kaler, Gay Sheffield, S Backensto, Jackie Lindsey, T. Jones, J. Parrish, B Ahmasuk, Barbara Bodenstein, Robert J. Dusek, Caroline R. Van Hemert, Matthew M. Smith, P Schwalenberg
Quantifying aspects of rangeland health at watershed scales in Colorado using remotely sensed data products
During grazing permit renewals, the Bureau of Land Management assesses land health using indicators typically measured using field-based data collected from individual sites within grazing allotments. However, agency guidance suggests assessments be completed at larger spatial scales.We explored how the current generation of remotely sensed data products could be used to quantify aspects of land h
Authors
Nathan J. Kleist, Christopher T Domschke, S E Litschert, J Hunter Seim, Sarah K. Carter
SPCIS: Standardized Plant Community with Introduced Status database
The movement of plant species across the globe exposes native communities to new species introductions. While introductions are pervasive, two aspects of variability underlie patterns and processes of biological invasions at macroecological scales. First, only a portion of introduced species become invaders capable of substantially impacting ecosystems. Second, species that do become invasive at o
Authors
Lais Petri, Evelyn M. Beaury, Jeff Corbin, Kristen Peach, Helen Sofaer, Ian Pearse, Reagan Early, Dave Barnett, Inés Ibáñez, Robert K. Peet, Michael Schafale, Thomas Wentworth, James Vanderhorst, David N. Zaya, Greg Spyreas, Bethany A. Bradley
Decades of global sturgeon conservation efforts are threatened by an expanding captive culture industry
After centuries of overexploitation and habitat loss, many of the world's sturgeon (Acipenseridae) populations are at the brink of extinction. Although significant resources are invested into the conservation and restoration of imperiled sturgeons, the burgeoning commercial culture industry poses an imminent threat to the persistence of many populations. In the past decade, the number and distribu
Authors
Shannon L. White, Dewayne A. Fox, Tamar Beridze, Stephania K Bolden, Robin L. Johnson, Thomas F Savoy, Fleur Scheele, Andrea D Schreier, David C. Kazyak
Modeling of historical and current distributions of lone star tick, Amblyomma americanum (Acari: Ixodidae), is consistent with ancestral range recovery
The lone star tick, Amblyomma americanum L., is a three-host hard tick notorious for aggressive feeding behavior. In the early to mid-20th century, this species’ range was mostly limited to the southern USA. Since the 1950s, A. americanum has been detected in many new localities in the western, northcentral, and northeastern regions of the country. To examine the influence of climate on this appar
Authors
Ilia Rochlin, Andrea Egizi, Howard Ginsberg
The economic costs of chronic wasting disease in the United States
Cervids are economically important to a wide range of stakeholders and rights holders in the United States. The continued expansion of chronic wasting disease (CWD), a fatal neurodegenerative disease affecting wild and farmed cervids, poses a direct and indirect threat to state and federal government agency operations and cervid related economic activity. However, the scale of this disease’s direc
Authors
Scott J. Chiavacci
Assessment of vulnerabilities and opportunities to restore marsh sediment supply at Nisqually River Delta, west-central Washington
A cascading set of hazards to coastal environments is intimately tied to sediment transport and includes the flooding and erosion of shorelines and habitats that support communities, industry, infrastructure, and ecosystem functions (for example, habitats critical to fisheries). This report summarizes modeling and measurement data used to evaluate the sediment budget of the Nisqually River Delta,
Authors
Eric E. Grossman, Sean C. Crosby, Andrew W. Stevens, Daniel J. Nowacki, Nathan R. vanArendonk, Christopher A. Curran
Microbial source tracking and land use associations for antibiotic resistance genes in private wells influenced by human and livestock fecal sources
Antimicrobial resistance is a growing public health problem that requires an integrated approach among human, agricultural, and environmental sectors. However, few studies address all three components simultaneously. We investigated the occurrence of five antibiotic resistance genes (ARGs) and the class 1 integron gene (intI1) in private wells drawing water from a vulnerable aquifer influenced by
Authors
Tucker R. Burch, Joel P. Stokdyk, Aaron Firnstahl, Burney Kieke Jr, Rachel Cook, Sarah Opelt, Sue Spencer, Lisa Durso, Mark A. Borchardt