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
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Environmental implications of Ptolemaic Period rodents and shrews from the Sacred Falcon Necropolis at Quesna, Egypt (Mammalia: Muridae and Soricidae) Environmental implications of Ptolemaic Period rodents and shrews from the Sacred Falcon Necropolis at Quesna, Egypt (Mammalia: Muridae and Soricidae)
Background Assemblages of mummified and preserved animals in necropoleis of Ptolemaic Period Egypt (ca. 332–30 BC) document some aspects of the ceremonial and religious practices of the ancient Egyptians, but study of these animal remains can also provide insight into the local environments in which the animals and humans lived.Results Excavations of the Sacred Falcon Necropolis at...
Authors
Neal Woodman, Salima Ikram, Joanne Rowland
Pesticide prioritization by potential biological effects in tributaries of the Laurentian Great Lakes Pesticide prioritization by potential biological effects in tributaries of the Laurentian Great Lakes
Watersheds of the Great Lakes Basin (USA/Canada) are highly modified and impacted by human activities including pesticide use. Despite labeling restrictions intended to minimize risks to nontarget organisms, concerns remain that environmental exposures to pesticides may be occurring at levels negatively impacting nontarget organisms. We used a combination of organismal-level toxicity...
Authors
Samantha K. Oliver, Steven R. Corsi, Austin K. Baldwin, Michelle A. Nott, Gerald T. Ankley, Brett R. Blackwell, Daniel L. Villeneuve, Michelle L. Hladik, Dana W. Kolpin, Luke C. Loken, Laura A. DeCicco, Michael T. Meyer, Keith A. Loftin
The Pāhala swarm of earthquakes in Hawai‘i The Pāhala swarm of earthquakes in Hawai‘i
No abstract available.
Authors
Ashton F. Flinders
Detailed 40Ar/39Ar geochronology of the Loyalty and Three Kings Ridges clarifies the extent and sequential development of Eocene to Miocene southwest Pacific remnant volcanic arcs Detailed 40Ar/39Ar geochronology of the Loyalty and Three Kings Ridges clarifies the extent and sequential development of Eocene to Miocene southwest Pacific remnant volcanic arcs
The 2015 VESPA voyage (Volcanic Evolution of South Pacific Arcs) was a seismic and rock dredging expedition to the Loyalty and Three Kings Ridges and South Fiji Basin. In this paper we present 33 40Ar/39Ar, 22 micropaleontological, and two U/Pb ages for igneous and sedimentary rocks from 33 dredge sites in this little-studied part of the southwest Pacific Ocean. Igneous rocks include...
Authors
Phillip B. Gans, Nick Mortimer, M. Patriat, Rose E. Turnbull, M.P. Crundwell, A. Agranier, Andrew T. Calvert, G. Seward, Samuel Etienne, P.M.J. Durance, H.J. Campbell, Julien Collot
Distributions of Cisco (Coregonus artedi) in the upper Great Lakes in the mid-twentieth century, when populations were in decline Distributions of Cisco (Coregonus artedi) in the upper Great Lakes in the mid-twentieth century, when populations were in decline
The restoration of the once abundant Cisco (Coregonus artedi) is a management interest across the Laurentian Great Lakes. To inform the restoration, we (1) described historical distributions of Cisco and (2) explored whether non-indigenous Rainbow Smelt (Osmerus mordax) and Alewife (Alosa pseudoharengus) played a role in the decline of Cisco populations across the upper Great Lakes (i.e...
Authors
Yu-Chun Kao, Renee Elizabeth Renauer, David B. Bunnell, Owen Gorman, Randy L. Eshenroder
Near-term forecasts of stream temperature using deep learning and data assimilation in support of management decisions Near-term forecasts of stream temperature using deep learning and data assimilation in support of management decisions
Deep learning (DL) models are increasingly used to make accurate hindcasts of management-relevant variables, but they are less commonly used in forecasting applications. Data assimilation (DA) can be used for forecasts to leverage real-time observations, where the difference between model predictions and observations today is used to adjust the model to make better predictions tomorrow...
Authors
Jacob Aaron Zwart, Samantha K. Oliver, William Watkins, Jeffrey Michael Sadler, Alison P. Appling, Hayley R. Corson-Dosch, Xiaowei Jia, Vipin Kumar, Jordan Read
Investigating effects of climate-induced changes in water temperature and diet on mercury concentrations in an Arctic freshwater forage fish Investigating effects of climate-induced changes in water temperature and diet on mercury concentrations in an Arctic freshwater forage fish
The amount of mercury (Hg) in Arctic lake food webs is, and will continue to be, affected by rapid, ongoing climate change. At warmer temperatures, fish require more energy to sustain growth; changes in their metabolic rates and consuming prey with potentially higher Hg concentrations could result in increased Hg accumulation. To examine the potential implications of climate warming on...
Authors
Sarah M. Laske, Samantha M. Burke, Michael P. Carey, Heidi K. Swanson, Christian E. Zimmerman
Revised age and regional correlations of Cenozoic strata on Bat Mountain, Death Valley region, California, USA, from zircon U-Pb geochronology of sandstones and ash-fall tuffs Revised age and regional correlations of Cenozoic strata on Bat Mountain, Death Valley region, California, USA, from zircon U-Pb geochronology of sandstones and ash-fall tuffs
Basin analysis and tectonic reconstructions of the Cenozoic history of the Death Valley region, California, USA, are hindered by a lack of volcanic (tuff) age control in many stratigraphic successions exposed in the Grapevine and Funeral Mountains of California, USA. Although maximum depositional ages (MDAs) interpreted from detrital zircon U-Pb data may be a promising alternative to...
Authors
Theresa Maude Schwartz, Amanda Kate Souders, Jens-Erik Lundstern, Amy K. Gilmer, Ren A. Thompson
Do unpublished data help to redraw distributions? The case of the spectacled bear in Peru Do unpublished data help to redraw distributions? The case of the spectacled bear in Peru
Data availability remains a principal factor limiting the use of species distribution models (SDMs) as tools for wildlife conservation and management of rare species. Although data collected in systematic and rigorous fashion are preferable, available data for most species of conservation interest are usually low in both quality and number. Here we show that combining records published...
Authors
Nereyda Falconi, John T. Finn, Todd K. Fuller, John F. Organ
Models combining multiple scales of inference capture hydrologic and climatic drivers of riparian tree distributions Models combining multiple scales of inference capture hydrologic and climatic drivers of riparian tree distributions
Predicting species geographic distributions is key to managing invasive species, conserving biodiversity, and understanding species' environmental requirements. Species distribution models (SDMs) commonly focus on climatic predictors, but other environmental factors can also be essential, particularly for species with specialized habitats defined by hydrologic, topographic, or edaphic...
Authors
Laura G Perry, Catherine S. Jarnevich, Patrick B. Shafroth
Analysis of per capita contributions from a spatial model provides strategies for controlling spread of invasive carp Analysis of per capita contributions from a spatial model provides strategies for controlling spread of invasive carp
Metapopulation models may be applied to inform natural resource management to guide actions targeted at location-specific subpopulations. Model insights frequently help to understand which subpopulations to target and highlight the importance of connections among subpopulations. For example, managers often treat aquatic invasive species populations as discrete populations due to...
Authors
Donald R. Schoolmaster, Alison A. Coulter, Jahn L. Kallis, David C. Glover, John M. Dettmers, Richard A. Erickson
Sharing land via keystone structure: Retaining naturally regenerated trees may efficiently benefit birds in plantations Sharing land via keystone structure: Retaining naturally regenerated trees may efficiently benefit birds in plantations
Meeting food/wood demands with increasing human population and per-capita consumption is a pressing conservation issue, and is often framed as a choice between land sparing and land sharing. Although most empirical studies comparing the efficacy of land sparing and sharing supported land sparing, land sharing may be more efficient if its performance is tested by rigorous experimental...
Authors
Yuichi Yamaura, Akira Unno, J. Andrew Royle