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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Seasonal variability in macroinvertebrate assemblages in paired perennial and intermittent streams in Costa Rica
Ecological effects of flooding and drying events are relatively understudied in the Neotropics and less is known about these hydrological extremes in intermittent streams. Neotropical headwater streams in Costa Rica provide opportunities to evaluate the response of macroinvertebrate communities to seasonal changes in flow regime in relatively human undisturbed systems. We quantified the effects of
Authors
Darixa D Hernandez-Abrams, Scott Connelly, Mary Freeman, Pablo E. Gutierrez-Fonseca, Seth J. Wenger
Climate disequilibrium dominates uncertainty in long-term projections of primary productivity
Rapid climate change may exceed ecosystems' capacities to respond through processes including phenotypic plasticity, compositional turnover and evolutionary adaption. However, consequences of the resulting climate disequilibria for ecosystem functioning are rarely considered in projections of climate change impacts. Combining statistical models fit to historical climate data and remotely-sensed es
Authors
Andrew J Felton, Robert K Shriver, Michael Stemkovski, John B. Bradford, Katharine N. Suding, Peter B. Adler
Avian predation on juvenile and adult Lost River and Shortnose Suckers: An updated multi-predator species evaluation
Previous research suggests that predation by piscivorous colonial waterbirds may negatively influence the survival of Lost River Suckers (LRS) Deltistes luxatus and Shortnose Suckers (SNS) Chasmistes brevirostris in the Upper Klamath Basin (UKB), USA. However, estimates of predation from past studies, which were based on suckers with PIT tags, represent minimum estimates of sucker mortality becaus
Authors
Allen Evans, Quinn Payton, Nathan V Banet, Bradley M. Cramer, Caylen Kelsey, David A. Hewitt
River channel response to invasive plant treatment across the American Southwest
Invasive riparian plants were introduced to the American Southwest in the early 19th century and contributed to regional trends of decreasing river channel width and migration rate in the 20th century. More recently, efforts to remove invasive riparian vegetation (IRV) have been widespread, especially since 1990. To what extent has IRV treatment reversed the earlier trend of channel narrowing and
Authors
Celeste Wieting, J. M. Friedman, Sara L. Rathburn
Off-fault deformation in regions of complex fault geometries: the 2013, Mw7.7, Baluchistan rupture (Pakistan)
Observations of recent earthquake surface ruptures show that ground deformations include a localized component occurring on faults, and an off-fault component affecting the surrounding medium. This second component is also referred to as off-fault deformation (OFD). The localized component generally occurs on complex networks of faults that connect at depth onto a unique fault plane, whereas OFD c
Authors
Solene Antoine, Yann Klinger, Arthur Delorme, Ryan D. Gold
Optical properties of dissolved organic matter in throughfall and stemflow vary across tree species and season in a temperate headwater forest
Tree-derived dissolved organic matter (DOM) comprises a significant carbon flux within forested watersheds. Few studies have assessed the optical properties of tree-derived DOM. To increase understanding of the factors controlling tree-derived DOM quality, we measured DOM optical properties, dissolved organic carbon (DOC) and calcium concentrations in throughfall and stemflow for 17 individual rai
Authors
Kevin A Ryan, Thomas Adler, Ann T. Chalmers, Julia Perdrial, Stephen Sebestyen, James B. Shanley, Aron Stubbins
Disease outbreaks select for mate choice and coat color in wolves
We know much about pathogen evolution and the emergence of new disease strains, but less about host resistance and how it is signaled to other individuals and subsequently maintained. The cline in frequency of black-coated wolves (Canis lupus) across North America is hypothesized to result from a relationship with canine distemper virus (CDV) outbreaks. We tested this hypothesis using cross-sectio
Authors
Sarah Cubaynes, E E Brandell, Daniel R. Stahler, Douglas W. Smith, Emily S. Almberg, Susanne Schindler, Robert K. Wayne, Andrew P. Dobson, Bridgett M. vonHoldt, Daniel R. MacNulty, Paul C. Cross, Peter J. Hudson, Tim Coulson
Spatial estimates of soil moisture for understanding ecological potential and risk: a case study for arid and semi-arid ecosystems
Soil temperature and moisture (soil-climate) affect plant growth and microbial metabolism, providing a mechanistic link between climate and growing conditions. However, spatially explicit soil-climate estimates that can inform management and research are lacking. We developed a framework to estimate spatiotemporal-varying soil moisture (monthly, annual, and seasonal) and temperature-moisture regim
Authors
Michael S. O'Donnell, Daniel Manier
Multi-factor biotopes as a method for detailed site characterization in diverse benthic megafaunal communities and habitats in deep-water off Morro Bay, California
Here we describe the methods and results for biological characterization of the benthos on a previously unexplored area of central California, USA seafloor. We conducted 40 remotely operated vehicle dives from 371 to 1173 m water depth. Seafloor habitats and megafauna (fish and invertebrates) were documented from 46.8 km of seafloor video footage. Our expanded development and analysis of biotopes
Authors
Linda A. Kuhnz, Lisa Gilbane, Guy R. Cochrane, Charles K. Paull
Hydrologic modeling of a perennial firn aquifer in southeast Greenland
A conceptual model, based on field observations and assumed physics of a perennial firn aquifer near Helheim Glacier (southeast Greenland), is evaluated via steady-state 2-D simulation of liquid water flow and energy transport with phase change. The simulation approach allows natural representation of flow and energy advection and conduction that occur in vertical meltwater recharge through the un
Authors
Olivia Miller, Clifford I. Voss, D. Kip Solomon, Clément Miège, Richard Forster, Nicholas Schmerr, Lynn Montgomery
Estimation of the water table position in unconfined aquifers with MODFLOW 6
The numerical estimation of the position of the water table in unconfined aquifers is important for many practical applications. Its determination through observations or analytical methods is restricted to a few cases. Therefore, it is often estimated through numerical simulations, which may be affected by numerical artifacts and/or poor stability. We use MODFLOW to estimate the position of the w
Authors
Paulo A. Herrera, Christian D. Langevin, Glenn Hammond
ECCOE Landsat Quarterly Calibration and Validation report—Quarter 2, 2022
Executive SummaryThe U.S. Geological Survey Earth Resources Observation and Science Calibration and Validation (Cal/Val) Center of Excellence (ECCOE) focuses on improving the accuracy, precision, calibration, and product quality of remote-sensing data, leveraging years of multiscale optical system geometric and radiometric calibration and characterization experience. The ECCOE Landsat Cal/Val Team
Authors
Md Obaidul Haque, Rajagopalan Rengarajan, Mark Lubke, Md Nahid Hasan, Ashish Shrestha, Fatima Tuz Zafrin Tuli, Jerad L. Shaw, Alex Denevan, Shannon Franks, Esad Micijevic, Michael J. Choate, Cody Anderson, Kurt Thome, Ed Kaita, Julia Barsi, Raviv Levy, Lawrence Ong