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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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.
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Similar population dynamics before and after a chytridiomycosis outbreak in a tropical riparian amphibian species Similar population dynamics before and after a chytridiomycosis outbreak in a tropical riparian amphibian species
Emerging infectious diseases can cause rapid, widespread host mortality, and the lack of demographic data before and after pathogen emergence complicates understanding mechanisms of host persistence. This challenge is further compounded by environmental conditions that influence host behavior, while driving pathogen growth and virulence. These interactions create complex disease outcomes...
Authors
Graziella Vittoria DiRenzo, Rebecca M. McCaffery, Ana V. Longo, Kelly R. Zamudio, Karen R. Lips
Invasive wild pig movement and space use in a mixed-use forest landscape, South Carolina Invasive wild pig movement and space use in a mixed-use forest landscape, South Carolina
Invasive wild pigs (Sus scrofa) pose considerable ecological and economic challenges across their introduced range, and understanding their spatial ecology is critical for management. This research and accompanying dataset represents adult wild pig movement in South Carolina, United States based on 16 individuals collared in 2023-2024. Using hourly GPS collar data for 6 males and 5...
Authors
Erin K. Buchholtz, Andrew Jamison, Greg Yarrow
Getting ahead of the crises: Developing an avian malaria disease management plan for Hawaiian forest birds Getting ahead of the crises: Developing an avian malaria disease management plan for Hawaiian forest birds
Avian malaria is an existential threat to a majority of native Hawaiian forest birds. Climate change is facilitating the spread of malaria to historically disease-free areas, and despite the risk of native Hawaiian forest bird extinctions from malaria outbreaks, no comprehensive disease management plans exist for forest bird conservation areas. Hakalau Forest National Wildlife Refuge...
Authors
Eben H. Paxton, Eldridge Naboa, Nicholas R. Agorastos, Donna L. Ball, Lucas Berio Fortini, Thomas Cady, Richard J. Camp, Patrick J. Hart, Springer Kaye, Steven J. Kendall, Dennis A. LaPointe, Ricardo D. Lopez, Katherine Maria McClure, Amanda K Navine
Noble and base metal distribution and processes affecting ore tenors in the disrupted lower stratigraphy of the Stillwater Complex, USA Noble and base metal distribution and processes affecting ore tenors in the disrupted lower stratigraphy of the Stillwater Complex, USA
Exploration continues for contact-style Ni-Cu sulfide and chromitite-associated PGE mineralization in ultramafic rocks of the Stillwater Complex. At the Iron and Chrome Mountain areas, massive sulfides occur along the complex’s footwall contact and anomalous concentrations of PGE+Au are associated with the three lowermost chromitite seams. Southeast of Chrome Mountain, magmatic layering...
Authors
Allen K. Andersen, Michael Jenkins
Achieving interpretable machine learning by functional decomposition of black-box models into explainable predictor effects Achieving interpretable machine learning by functional decomposition of black-box models into explainable predictor effects
Machine learning (ML) models are often based on complex black-box architectures that are difficult to interpret. This interpretability problem can hinder the use of ML in fields like medicine, ecology, and insurance, and has boosted research in interpretable machine learning (IML). Here, we propose a novel approach for the functional decomposition of black-box predictions, which is a...
Authors
David Kohler, David Rügamer, Lindsey J. Boyle, Kelly O. Maloney, Matthias Schmid
Longer exposure to warm water increases subsequent thermal tolerance of brook trout in cold water: Acclimation timing and physiology Longer exposure to warm water increases subsequent thermal tolerance of brook trout in cold water: Acclimation timing and physiology
Climate change has resulted in increased incidence and variability of warming episodes in cold-water streams that support salmonids. The capacity to acclimate to warm temperatures may allow cold-water fish to persist in spite of changing thermal regimes, but accurately predicting fish performance under fluctuating stream temperatures also requires understanding re-acclimation to cool...
Authors
Amy M. Regish, Matthew O’Donnell, Benjamin Letcher, Timothy Lambert, Daniel J. Hall, Stephen D. McCormick
Aggregating three sources of long-term trends of swallows and martins to identify priority conservation areas in the Great Lakes region Aggregating three sources of long-term trends of swallows and martins to identify priority conservation areas in the Great Lakes region
1. Long-term monitoring of bird populations across scales is important in evaluating conservation targets and creating effective conservation strategies. For nearly six decades, the Breeding Bird Survey (BBS) has served as the primary broad-scaled source of relative abundance trends of swallows and martins in North America. Recently, however, it has become possible to obtain breeding...
Authors
Maria C.T.D. Belotti, Brian Daniel Gerber, Wenlong Zhao, Yuting Deng, Victoria F. Simons, Gustavo Perez, Jeffrey F. Kelly, Subhransu Maji, Daniel Sheldon, Kyle G. Horton
Near-real-time geochemical monitoring of Hawaiian volcanoes using energy dispersive X-ray fluorescence (EDXRF) Near-real-time geochemical monitoring of Hawaiian volcanoes using energy dispersive X-ray fluorescence (EDXRF)
Syn-eruption geochemical monitoring during volcanic activity is an important component of integrated volcanic monitoring. Volcanoes on the Island of Hawai‘i are primarily monitored by the U.S. Geological Survey’s Hawaiian Volcano Observatory using instrumental networks, field surveys, satellite observations, and petrologic monitoring. In collaboration with the University of Hawaiʻi at...
Authors
Steven P. Lundblad, Peter R. Mills, Kendra J. Lynn, Elisabeth Gallant, Cheryl Gansecki, Meghann Decker, Drew T. Downs
Chronic, low concentration pesticide exposure alters reproduction and behavior in the intertidal sea anemone, Anthopleura elegantissima Chronic, low concentration pesticide exposure alters reproduction and behavior in the intertidal sea anemone, Anthopleura elegantissima
Widespread pesticide and herbicide use paired with frequent transport away from application sites has led to pesticide presence in nearly all terrestrial and aquatic environments globally. Pesticides have unintentional toxic effects on non-target organisms by interfering with cellular processes, behavior, feeding, reproduction, and disrupting endocrine processes. The aggregating anemone
Authors
Bria Bleil, Elise F. Granek, Nathan L. Kirk, Michelle L. Hladik
Viral outbreak dynamics and evolution in wildlife at the interface with humans Viral outbreak dynamics and evolution in wildlife at the interface with humans
In this study, we used a multi-faceted approach to understand patterns of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission and persistence in a wild white-tailed deer (Odocoileus virginianus) population. Serology data indicated transmission of SARS-CoV-2 and persistence during the seven-month sampling period. Traditional disease modelling based on deer-to-deer...
Authors
Rachael Marie Giglio, Aaron Westmoreland, Mark Q. Wilber, Grete WIlson-Henjum, Aung Nyein Chan, Billy Gardner, Wantida Horpiencharoen, Roderick B. Gagne, Avery M. Corondi, Alec Baker, Matthew A. Combs, Jefferey Chandler, Kezia R. Manlove, Kim M. Pepin, W. David Walter
Interaction strength and harvest intensity mediate predator–prey dynamics on coral reefs Interaction strength and harvest intensity mediate predator–prey dynamics on coral reefs
Understanding predator–prey relationships is fundamental to our knowledge of the stability and resilience of ecological systems. These dynamics are shaped by both ecological factors, like interaction strength, and anthropogenic factors, like harvest intensity, which can have large-scale implications for community structure. However, few studies have focused on the combined impact of...
Authors
Sophia A. Rahnke, Winter. Kawika B., Lillian Joy Tuttle Raz, Lisa C. McManus
Spatial connections between the timing of hydroclimatic extremes Spatial connections between the timing of hydroclimatic extremes
No abstract available.
Authors
Stacey Archfield