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Browse more than 65,000 articles authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 77762

Extreme precipitation variability and soil texture controls on water-table response Extreme precipitation variability and soil texture controls on water-table response

Extreme precipitation events (EPEs), a key class of hydrometeorological extremes, are intensifying globally under climate change; however, their effects on water-table dynamics across varying soil textures remain poorly understood. To better understand the impacts of EPEs, we conducted one-dimensional modeling to evaluate water-table response time, displacement, recession time, and total...
Authors
Claudia R. Corona, Shemin Ge, Suzanne P. Anderson, Jesse E. Dickinson

Urbanization alters riverine fluorescent dissolved organic matter characteristics in a forested city – metropolitan Atlanta, Georgia (USA) Urbanization alters riverine fluorescent dissolved organic matter characteristics in a forested city – metropolitan Atlanta, Georgia (USA)

Streams and rivers in urban watersheds are predicted to export more bioreactive, autochthonous dissolved organic matter (DOM) relative to forested watersheds. However, the spatial and temporal variations of DOM quality in forested urban watersheds remain uncertain, and their relationships with socioeconomic conditions, biological characteristics, and the built environment are...
Authors
Shuo Chen, Rebecca Hale, Kristina G. Hopkins, Liz Ortiz Muñoz, John Kominoski, Sarah Ledford, Krista A. Capps

Bird guilds exhibit varied responses to floodplain forest restoration in the Colorado River delta, Mexico Bird guilds exhibit varied responses to floodplain forest restoration in the Colorado River delta, Mexico

Grouping species into guilds can be useful to inform management decisions locally and at broader scales because guilds lack species-specificity. We investigated the response of five breeding bird guilds to riparian habitat restoration in the arid Colorado River delta, based on two decades of bird detections (2002–2021) at 230 bird count stations across 7 routes in actively revegetated (...
Authors
Eduardo González-Sargas, Timothy D. Meehan, Osvel Hinojosa-Huerta, Stefanny Villagomez-Palma, Christopher Dodge, Martha Gómez-Sapiens, Pamela L. Nagler, Patrick B. Shafroth

Boxed in or branching out? Movement and resource selection of eastern box turtles (Terrapene carolina carolina) in an urban green space Boxed in or branching out? Movement and resource selection of eastern box turtles (Terrapene carolina carolina) in an urban green space

The eastern box turtle (Terrapene carolina carolina) is a long-lived terrestrial turtle species distributed throughout the eastern United States that has experienced widespread population decline. Many eastern box turtle populations are persisting as remanent populations in small, fragmented urban green spaces. We investigated the movement and resource selection of eastern box turtles...
Authors
Max D. Jones, Kenneth B. Ferebee, W. Mark Ford, Elizabeth Ann Hunter

Short-term estuarine phytoplankton dynamics in response to hurricanes along the Gulf Coast of America: A Variational Autoencoder (VAE) approach with satellite and bio-optical observations Short-term estuarine phytoplankton dynamics in response to hurricanes along the Gulf Coast of America: A Variational Autoencoder (VAE) approach with satellite and bio-optical observations

Hurricanes drive diverse estuarine phytoplankton responses and can trigger cascading ecological and physicochemical impacts. Capturing these short-term dynamics requires high spatiotemporal resolution. Here, we applied a globally-applicable coastal ocean color algorithm, Variational Autoencoder (VAE), to Sentinel-2 MSI imagery for chlorophyll-a (Chl-a) estimation and validated its strong
Authors
Jiang Li, Bingqing Liu, Jiadong Lou, Xu Yuan, Eurico J. D'Sa, Melissa Millman Baustian, Megan La Peyre, Angelina Freeman, Vitor S. Martins, Emad Habib

Opportunities for the U.S. Geological Survey’s National Seismic Hazard Model to improve seismic risk assessment of critical infrastructure. Opportunities for the U.S. Geological Survey’s National Seismic Hazard Model to improve seismic risk assessment of critical infrastructure.

As fragility and risk modeling techniques and computational capabilities evolve, complemented by moving toward more routine and systematic seismic risk assessment of all buildings and critical infrastructure, the authors pose a few critical questions to investigate how the U.S. Geological Survey (USGS) National Seismic Hazard Models (NSHMs) can be used and enhanced further to serve such...
Authors
Kishor S. Jaiswal, N. Simon Kwong

Invasive carps versus native fish: A first-pass trait-based index for assessing competition threats. Invasive carps versus native fish: A first-pass trait-based index for assessing competition threats.

Introduction: Bigheaded carp (Hypophthalmichthys spp.) are invasive fish in the Mississippi River basin. Their rapid proliferation has raised concerns about exploitative competition with native fishes, with consequences that remain incompletely understood. We aimed to identify native species most susceptible to competition based on overlap with bigheaded carp in dietary and habitat...
Authors
Leandro E. Miranda, Mirtha A. Angulo-Valencia

Spatially concentrating logging could mitigate climate-magnified fragmentation risks to a globally endangered bird Spatially concentrating logging could mitigate climate-magnified fragmentation risks to a globally endangered bird

1. Rising timber demand is transforming forest structure globally, profoundly affecting biodiversity and climate resilience. Logging-driven fragmentation is potentially a major driver of biodiversity loss in production landscapes, yet its interactions with escalating climate stressors remain poorly understood. 2. We combine two decades of Landsat-derived habitat metrics with 29,000...
Authors
Gianluca Cerullo, Dusty Gannon, Jennifer A. Bailey Guerrero, Emily Conklin, Anna Bloch Kohlberg, Kim Nelson, James W. Rivers, Jonathon Joseph Valente, Zhiqiang Yang, Matthew G.  Betts

Small earthquake moment magnitude and implications for frequency–magnitude scaling of injection induced earthquakes of the Raton Basin Small earthquake moment magnitude and implications for frequency–magnitude scaling of injection induced earthquakes of the Raton Basin

Accurate estimation of earthquake source parameters—such as moment magnitudes, corner frequencies, and stress drops—is essential for improving seismic hazard assessments and understanding earthquake physics. In this study, moment magnitudes (MW) are calculated for 31,581 earthquakes associated with wastewater injection in the Raton Basin (located along the border between northern New...
Authors
Andres Felipe Peña Castro, Brandon Schmandt, Margaret Elizabeth Glasgow, Mohammadreza Jamalreyhani, Ruijia Wang, Elizabeth S. Cochran

Reproduction partially compensates for human-caused mortality in a cooperative breeder Reproduction partially compensates for human-caused mortality in a cooperative breeder

Reproductive output can vary widely among mammalian species. There are many drivers that affect reproductive output including evolutionary, environmental, population, social, and individual traits. Although several factors, including human-caused mortality, can affect reproductive output, we generally have a poor understanding of how such factors interact to affect reproduction...
Authors
David Edward Ausband

Magnetic storms and geoelectric hazards Magnetic storms and geoelectric hazards

Magnetic storms induce geoelectric fields at Earth's surface that can interfere with grounded long-line systems. The September 1859 storm disrupted global telegraph operations, the March 1989 storm caused a blackout in Canada and interfered with electric-power-transmission systems in the United States, and other storms have had related impacts. The geographic and temporal dependence of...
Authors
Jeffrey J. Love, Paul A. Bedrosian, Anna Kelbert, E. Joshua Rigler, Greg M. Lucas, Neesha R. Schnepf

How to accelerate advances in ecological forecasting How to accelerate advances in ecological forecasting

Ecological forecasting offers critical insights for managing natural resources and safeguarding public well-being. Despite growing demand for these forecasts, progress is hindered by fragmented systems, redundant workflows, and limited interoperability. Drawing lessons from weather forecasting and recent successes like the NEON Ecological Forecasting Challenge, shared cyberinfrastructure...
Authors
Jacob Aaron Zwart, Cameron Thompson, Hassan Moustahfid, Jessica Burnett, Michael Dietze
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