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Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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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Prioritizing US Geological Survey science on salinization and salinity in candidate and selected priority river basins Prioritizing US Geological Survey science on salinization and salinity in candidate and selected priority river basins
The US Geological Survey (USGS) is selecting and prioritizing basins, known as Integrated Water Science basins, for monitoring and intensive study. Previous efforts to aid in this selection process include a scientifically defensible and quantitative assessment of basins facing human-caused water resource challenges (Van Metre et al. in Environmental Monitoring and Assessment, 192(7)...
Authors
Christopher H. Conaway, Nancy T. Baker, Craig J. Brown, Christopher T. Green, Douglas B. Kent
Perfluorohexanesulfonic acid (PFHxS) induces hepatotoxicity through the PPAR signaling pathway in larval zebrafish (Danio rerio) Perfluorohexanesulfonic acid (PFHxS) induces hepatotoxicity through the PPAR signaling pathway in larval zebrafish (Danio rerio)
In recent years, the industrial substitution of long-chain per- and polyfluoroalkyl substances (PFAS) with short-chain alternatives has become increasingly prevalent, resulting in the widespread environmental detection of perfluorohexanesulfonic acid (PFHxS), a short-chain PFAS. However, there remains limited information about the potential adverse effects of PFHxS at environmental...
Authors
Haolin Liao, Ying-Jie He, Shuwen Zhang, Xinyuan Kang, Xin Yang, Bentuo Xu, Jason Tyler Magnuson, Shuping Wang, Chunmiao Zheng, Wenhui Qiu
Hypothetical CO2 leakage into, and hydrological plume management within, an underground source of drinking water at a proposed CO2 storage facility, Kemper County, Mississippi, USA Hypothetical CO2 leakage into, and hydrological plume management within, an underground source of drinking water at a proposed CO2 storage facility, Kemper County, Mississippi, USA
A large Geologic Carbon Sequestration (GCS) hub has been proposed in Kemper County, Mississippi. The target injection interval consists of numerous Cretaceous-aged deep saline aquifers overlain by a competent and extensive regional sealing layer. Above the seal, the deepest Underground Source of Drinking Water (USDW) at the site is the Eutaw aquifer of the Eutaw Group and McShan...
Authors
Michelle R. Plampin, Matthew D. Merrill
Deformation of Mauna Loa volcano before, during, and after its 2022 eruption Deformation of Mauna Loa volcano before, during, and after its 2022 eruption
Mauna Loa on the Island of Hawaiʻi erupted on 27 November 2022, the first eruption since 1984, which marked the culmination of decades-long period of non-eruptive unrest and relative quiescence. We briefly describe the evolution of the USGS Hawaiian Volcano Observatory’s geodetic monitoring network at Mauna Loa and show patterns of deformation as measured by Global Navigation Satellite...
Authors
Andria P. Ellis, Ingrid A. Johanson, Michael P. Poland
How, what, and where you sample environmental DNA affects diversity estimates and species detection How, what, and where you sample environmental DNA affects diversity estimates and species detection
Environmental DNA (eDNA) is a complex mixture of DNA, varying in particle sizes and distributed heterogeneously in aquatic systems. Optimizing eDNA sampling is crucial for maximizing species detection, particularly in high-risk scenarios like invasive species management. In this study, we compare two eDNA sampling methods - namely tow net and grab sample, where the tow nets process large...
Authors
Anish Kirtane, Leif Howard, Caitlin Beaver, Margaret Hunter, Gordon Luikart, Kristy Deiner
Antibodies to influenza A virus in Lesser (Aythya affinis) and Greater Scaup (Aythya marila) in the USA Antibodies to influenza A virus in Lesser (Aythya affinis) and Greater Scaup (Aythya marila) in the USA
Scaup, including both Lesser and Greater (Aythya affinis and Aythya marila, respectively), are a grouping of populous and widespread North American diving ducks. Few influenza type A viruses (IAV) have been reported from these species despite a high prevalence of antibodies to IAV being reported. Existing virologic and serologic data indicate that IAV infection routinely occurs in scaup...
Authors
Harrison Huang, Rebecca L. Poulson, Jeffery D. Sullivan, Susan E.W. De La Cruz, Hutchison Walbridge, David E. Stallknecht, Diann Prosser
First records distribution models to guide biosurveillance for non-native species First records distribution models to guide biosurveillance for non-native species
Quickly locating new populations of non-native species can reduce the ecological and economic costs of species invasions. However, the difficulty of predicting which new non-native species will establish, and where, has limited active post-border biosurveillance efforts. Because pathways of introduction underlie spatial patterns of establishment risk, an intuitive approach is to search...
Authors
Helen Sofaer, Demetra A. Williams, Catherine S. Jarnevich, Keana S. Shadwell, Caroline Kittle, Ian S. Pearse, Lucas Berio Fortini, Kelsey C. Brock
Abiotic and biotic factors related to growth of non-native Walleyes in Lake Pend Oreille, Idaho Abiotic and biotic factors related to growth of non-native Walleyes in Lake Pend Oreille, Idaho
Objective Growth is one of the primary drivers of fish population dynamics and understanding factors influencing growth is vital to effective management of fish populations. This study investigated potential factors influencing growth of a recently established, non-native population of Walleye Sander vitreus in the Lake Pend Oreille system in northern Idaho. Methods We used relative...
Authors
Susan Frawley, Matthew P. Corsi, Andrew M. Dux, Ryan S. Hardy, Michael C. Quist
Controls on lake pelagic primary productivity: Formalizing the nutrient-color paradigm Controls on lake pelagic primary productivity: Formalizing the nutrient-color paradigm
Understanding controls on primary productivity is essential for describing ecosystems and their responses to environmental change. Lake primary production is strongly controlled by inputs of nutrients and colored dissolved organic matter. While past studies have developed mathematical models of this nutrient-color paradigm, broad empirical tests of these models are scarce. We used data...
Authors
Isabella Oleksy, Christopher T. Solomon, Stuart E. Jones, Carly Olson, Brittni Bertolet, Rita Adrian, Sheel Bansal, Jill Baron, Soren Brothers, Sudeep Chandra, Hsiu-Mei Chou, William Colom-Montero, Joshua Culpeper, Elvira de Eyto, Matthew Farragher, Sabine Hilt, Kristen T. Holeck, Garabet Kazanjian, Marcus Klaus, Jennifer Klug, Jan Kohler, Alo Laas, Erik Lundin, Alice Parkes, Kevin C. Rose, Lars Rustam, James A. Rusak, Facundo Scordo, Michael J. Vanni, Piet Verburg, Gesa A. Weyhenmeyer
Detection of tick-borne pathogen coinfections and coexposures to foot-and-mouth disease, brucellosis, and Q fever in selected wildlife from Kruger National Park, South Africa, and Etosha National Park, Namibia Detection of tick-borne pathogen coinfections and coexposures to foot-and-mouth disease, brucellosis, and Q fever in selected wildlife from Kruger National Park, South Africa, and Etosha National Park, Namibia
Background: Although the rate of emerging infectious diseases that originate in wildlife has been increasing globally in recent decades, there is currently a lack of epidemiological data from wild animals. Methodology: We used serology to determine prior exposure to foot-and-mouth disease virus (FMDV), Brucella spp., and Coxiella burnetii and used genetic testing to detect blood-borne...
Authors
C.A. Cossu, S. Ochai, M. Troskie, A. Hartmann, J. Godfroid, L.-M. de Klerk, Wendy Christine Turner, P.L. Kamath, O. Louis van Schalkwyk, R. Cassini, R. Bhoora, H. van Heerden
Participatory engagement to reduce communication gaps Participatory engagement to reduce communication gaps
Underserved communities, especially those in coastal areas in Puerto Rico, face significant threats from natural hazards such as hurricanes and rising sea levels. Limited funding hinders the investment in costly mitigation measures, increasing exposure to natural disasters. Providing coastal resources and data products through effective communication mechanisms is fundamental to...
Authors
Legna M. Torres-Garcia, Manuel Valdés Pizzini, Krystalliá Valdés-Calderón, Donya P. Frank-Gilchrist, Dawn Marie Kotowicz, Emmanuel Maldonado, Priscila Vargas-Babilonia
Model predictions of global geologic hydrogen resources Model predictions of global geologic hydrogen resources
Geologic hydrogen could be a low-carbon primary energy resource; however, the magnitude of Earth’s subsurface endowment has not yet been assessed. Knowledge of the occurrence and behavior of natural hydrogen on Earth has been combined with information from geologic analogs to construct a mass balance model to predict the resource potential. Given the associated uncertainty, stochastic...
Authors
Geoffrey S. Ellis, Sarah E. Gelman