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.
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Interactions among rainfall, fire, forbs and non-native grasses predict occupancy dynamics for the endangered Pacific pocket mouse (Perognathus longimembris pacificus) in a Mediterranean-type ecosystem Interactions among rainfall, fire, forbs and non-native grasses predict occupancy dynamics for the endangered Pacific pocket mouse (Perognathus longimembris pacificus) in a Mediterranean-type ecosystem
It is important to understand species-habitat relationships to implement effective adaptive management for rare species. However, it can be challenging to assess habitat associations and their relationships to abiotic stressors in dynamic habitats without the insights that can be gained from long-term monitoring. We report results from the first six years of extensive track tube...
Authors
Cheryl S. Brehme, Sarah Kay Thomsen, Devin T. Adsit-Morris, Robert N. Fisher
Back-azimuth estimation of air-to-ground coupled infrasound from transverse coherence minimization Back-azimuth estimation of air-to-ground coupled infrasound from transverse coherence minimization
We present the transverse coherence minimization method (TCM)—an approach to estimate the back-azimuth of infrasound signals that are recorded on an infrasound microphone and a colocated three-component seismometer. Accurate back-azimuth information is important for a variety of monitoring efforts, but it is currently only available for infrasound arrays and for seismoacoustic sensor...
Authors
Jordan Bishop, Matthew M. Haney, David Fee, Robin Matoza, Kathleen McKee, John J. Lyons
Sound and sturgeon: Bioacoustics and anthropogenic sound Sound and sturgeon: Bioacoustics and anthropogenic sound
Sturgeons are basal bony fishes, most species of which are considered threatened and/or endangered. Like all fishes, sturgeons use hearing to learn about their environment and perhaps communicate with conspecifics, as in mating. Thus, anything that impacts the ability of sturgeon to hear biologically important sounds could impact fitness and survival of individuals and populations. There...
Authors
Arthur N. Popper, Robin D. Calfee
One byte at a time: Gathering best practices, guidelines, and resources for data standards to support ocean exploration and characterization One byte at a time: Gathering best practices, guidelines, and resources for data standards to support ocean exploration and characterization
Initiated through Presidential direction and now codified, the National Ocean Mapping, Exploration, and Characterization (NOMEC) Council comprises leaders from U.S. federal agencies with a shared goal of mapping all waters of the United States and exploring and characterizing priority areas. The NOMEC Council’s two Interagency Working Groups, Ocean and Coastal Mapping (IWG-OCM) and Ocean
Authors
Kasey Cantwell, Amanda Demopoulos, Mitchell G. Hebner, Rachel Medley, Mark Mueller, Amanda N. Netburn
Differing field methods and site conditions lead to varying bias in suspended sediment concentrations in the Lower Mississippi and Atchafalaya Rivers Differing field methods and site conditions lead to varying bias in suspended sediment concentrations in the Lower Mississippi and Atchafalaya Rivers
At sites that have been sampled for decades, changes in field and laboratory methods happen over time as instrumentation and protocols improve. Here, we compare the influence of depth- and point-integrated sampling on total, fine (
Authors
Jennifer C. Murphy, Lindsey Ayn Schafer, Scott Mize
The inevitability of large shallow craters on Callisto and Ganymede: Implications for crater depth-diameter trends The inevitability of large shallow craters on Callisto and Ganymede: Implications for crater depth-diameter trends
Complex craters with diameters (D) ≥ 40 km on Callisto and Ganymede are shallower than would be expected from simply extrapolating the depth-diameter trend from smaller (D ≤ 40 km) craters. This unusual depth-diameter (d-D) trend, and associated changes in crater morphology, have been hypothesized to result from rheological transitions, including the existence of an ocean, within the...
Authors
Michael T. Bland, Veronica Bray
Limited hybridisation and introgression despite stocking among endemic Interior Highlands black basses (Centrarchidae: Micropterus) Limited hybridisation and introgression despite stocking among endemic Interior Highlands black basses (Centrarchidae: Micropterus)
Aim: Smallmouth Bass (Micropterus dolomieu; SMB) are globally popular among anglers and have been widely introduced (i.e. stocked) for population management and sportfishing. Importantly, stocking was prevalent before cryptic diversity within the SMB complex was known, which now includes three newly elevated species: Neosho Bass (M. velox; NB), Little River Bass (M. sp. cf. dolomieu...
Authors
Joe C. Gunn, Andrew T. Taylor, Jeff J. Buckingham, Aaron I. Kern, James M. Long
Wherever I may roam—Human activity alters movements of red deer (Cervus elaphus) and elk (Cervus canadensis) across two continents Wherever I may roam—Human activity alters movements of red deer (Cervus elaphus) and elk (Cervus canadensis) across two continents
Human activity and associated landscape modifications alter the movements of animals with consequences for populations and ecosystems worldwide. Species performing long-distance movements are thought to be particularly sensitive to human impact. Despite the increasing anthropogenic pressure, it remains challenging to understand and predict animals' responses to human activity. Here we...
Authors
Steffen Mumme, Arthur D. Middleton, Paolo Ciucci, Johannes De Groeve, Andrea Corradini, Federico Ossi, Paul Atwood, Niko Balkenhol, Eric K. Cole, Lucie Debeffe, Sarah R. Dewey, Claude Fischer, Justin Gude, Marco Heurich, Mark A. Hurley, Anders Jarnemo, Matthew J. Kauffman, Alain Licoppe, Emiel van Loon, Doug McWhirter, Tony Mong, Luca Pedrotti, Nicolas Morellet, Atle Mysterud, Wibke Peters, Kelly Proffitt, Sonia Saïd, Johannes Signer, Peter Sunde, Martin Stary, Francesca Cagnacci
Microgravity as a tool for eruption forecasting Microgravity as a tool for eruption forecasting
Detection of gravity change over time has been used to better understand magmatic activity at volcanoes for decades, but the technique is not commonly applied to forecasting eruptions. In contrast, other tools, notably seismic, deformation, and gas monitoring have made exceptional strides in the past several decades and form the foundation for eruption forecasting, especially during the...
Authors
Elske de Zeeuw-van Dalfsen, Michael P. Poland
Mangrove habitat persistence and carbon vulnerability associated with increased nutrient loading and sea-level rise at Ding Darling National Wildlife Refuge (Sanibel Island, Florida, USA) Mangrove habitat persistence and carbon vulnerability associated with increased nutrient loading and sea-level rise at Ding Darling National Wildlife Refuge (Sanibel Island, Florida, USA)
J.N. “Ding” Darling National Wildlife Refuge (DDNWR) is located on Sanibel Island along the southwestern coast of Florida, USA. Sanibel Island is heavily developed, but DDNWR provides protection for a large mangrove area that supports biodiversity and recreational opportunity. However, nitrogen (N) and phosphorus (P) eutrophication attributed to agriculture discharge along the...
Authors
Ken Krauss, Jeremy R. Conrad, Jamie A. Duberstein, Eric Ward, Judith Z. Drexler, Kevin J. Buffington, Karen M. Thorne, Brian W. Benscoter, Haley Miller, Natalie T. Faron, Sergio Merino, Andrew From, Elitsa I. Peneva-Reed, Zhiliang Zhu
Lake Ontario April prey fish survey results and Alewife assessment, 2023 Lake Ontario April prey fish survey results and Alewife assessment, 2023
The April bottom trawl survey and Alewife Alosa pseudoharengus population assessment provides science to inform Lake Ontario fisheries management. The 2023 survey included 215 trawls in the main lake and embayments, and sampled depths from 6.5 to 252 m (21-833 ft). The survey captured 1,012,178 fish from 32 species with a total weight of 12,136 kg (26,700 lbs.). Alewife were 92% of the...
Authors
Brian Weidel, Jessica Goretzke, Jeremy Holden, Olivia Margaret Mitchinson, Scott P. Minihkeim
Stable isotope constraints on the source of ore fluids for the Hicks Dome REE+Y-HFSE-fluorspar deposit Stable isotope constraints on the source of ore fluids for the Hicks Dome REE+Y-HFSE-fluorspar deposit
Hicks Dome is comprised of coarse crystalline Mississippi Valley Type deposits at shallow levels and an enigmatic, fine-grained fluorite, rare earth elements, Y, high field strength elements, Be, and Ba rich deposit at deeper levels. Phyllosilicates from a lamprophyre dike and a breccia from two Hicks Dome drill cores were sampled to resolve the fluid history of the entire deposit using...
Authors
Julia A. McIntosh, Craig A. Johnson, Allen K. Andersen, Albert H. Hofstra