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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Trace elements in olivine fingerprint the source of 2018 magmas and shed light on explosive-effusive eruption cycles at Kīlauea Volcano Trace elements in olivine fingerprint the source of 2018 magmas and shed light on explosive-effusive eruption cycles at Kīlauea Volcano
Understanding magma genesis and the evolution of intensive parameters (temperature, pressure, composition, degree of melting) in the mantle source of highly active volcanic systems is crucial for interpreting magma supply changes over time and recognizing cyclic behavior to anticipate future volcanic behavior. Major and trace elements in olivine are commonly used to study variations in...
Authors
Adrien Mourey, Thomas Shea, Kendra J. Lynn, Allan Lerner, Sarah Lambart, Fidel Costa, Jeffrey Oalmann, R. Lopaka Lee, Cheryl Gansecki
Variation in within-host replication kinetics among virus genotypes provides evidence of specialist and generalist infection strategies across three salmonid host species Variation in within-host replication kinetics among virus genotypes provides evidence of specialist and generalist infection strategies across three salmonid host species
Theory of the evolution of pathogen specialization suggests that a specialist pathogen gains high fitness in one host, but this comes with fitness loss in other hosts. By contrast, a generalist pathogen does not achieve high fitness in any host, but gains ecological fitness by exploiting different hosts, and has higher fitness than specialists in nonspecialized hosts. As a result...
Authors
David James Páez, Douglas G. McKenney, Maureen K. Purcell, Kerry A. Naish, Gael Kurath
Forecasting and communicating the dispersion and fallout of ash during volcanic eruptions: lessons from the September 20, 2020 eruptive pulse at Sangay volcano, Ecuador Forecasting and communicating the dispersion and fallout of ash during volcanic eruptions: lessons from the September 20, 2020 eruptive pulse at Sangay volcano, Ecuador
Volcanic ash is a hazard to human health and activities. Accurate and timely forecasts coupled with effective communication about the dispersion and fallout of volcanic ash during explosive events are essential to reduce impacts on local communities and limit economic losses. In this study, we present the first detailed description of an eruptive pulse at Sangay volcano and its eruption...
Authors
Benjamin Bernard, Pablo Samaniego, Larry G. Mastin, Stephen Hernandez, Gerardo Pino, Jamie Kibler, Marjorie Encalada, Silvano Hidalgo, Nicole Vizuete
Recent climate change has driven divergent hydrological shifts in high-latitude peatlands Recent climate change has driven divergent hydrological shifts in high-latitude peatlands
High-latitude peatlands are changing rapidly in response to climate change, including permafrost thaw. Here, we reconstruct hydrological conditions since the seventeenth century using testate amoeba data from 103 high-latitude peat archives. We show that 54% of the peatlands have been drying and 32% have been wetting over this period, illustrating the complex ecohydrological dynamics of...
Authors
Hui Zhang, Minna Valiranta, Graeme T. Swindles, Marco Aquino-Lopez, Donal Mullan, Ning Tan, Matthew Amesbury, Kirill Babeshko, Kunshan Bao, Anatoly Bobrov, Viktor Chernyshov, Marissa A. Davies, Andrei-Cosmin Diaconu, Angelica Feurdean, Sarah A. Finkelstein, Michelle Garneau, Zhengtang Guo, Miriam C. Jones, Martin Kay, Eric S. Klein, Maruisz Lamentowicz, Gabriel Magnan, Katarzyna Marcisz, Natalia Mazei, Yuri Mazei, Richard Payne, Nicolas Pelletier, Sanna Piilo, Steve Pratte, Thomas P. Roland, Damir Saldaev, William Shotyk, Thomas G. Sim, Thomas J Sloan, Michal Slowinski, Julie Talbot, Liam Taylor, Andrey N. Tsyganov, Sebastian Wetterich, Wei Xing, Yan Zhao
Democratizing macroecology: Integrating unoccupied aerial systems with the National Ecological Observatory Network Democratizing macroecology: Integrating unoccupied aerial systems with the National Ecological Observatory Network
Macroecology research seeks to understand ecological phenomena with causes and consequences that accumulate, interact, and emerge across scales spanning several orders of magnitude. Broad-extent, fine-grain information (i.e., high spatial resolution data over large areas) is needed to adequately capture these cross-scale phenomena, but these data have historically been costly to acquire...
Authors
Michael J. Koontz, Victoria Mary Scholl, Anna I Spiers, Megan E Cattau, John Adler, Joseph McGlinchy, Tristan Goulden, Brett A Melbourne, Jennifer K. Balch
Predicting physical and geomorphic habitat associated with historical lake whitefish and cisco spawning locations in Lakes Erie and Ontario Predicting physical and geomorphic habitat associated with historical lake whitefish and cisco spawning locations in Lakes Erie and Ontario
The Great Lakes basin was historically populated by multiple, coevolved coregonine species, but much of that diversity has been lost. In Lakes Erie and Ontario, both lake whitefish (Coregonus clupeaformis) and cisco (Coregonus artedi) occurred in high numbers before habitat degradation, overfishing, invasive species, and other factors caused significant declines. There is growing...
Authors
Hannah M Schaefer, Andrew Edgar Honsey, David Bunnell, Brian Weidel, Robin DeBruyne, James S. Diana, Dimitry Gorsky, Edward F. Roseman
Sedimentary geochemistry of deepwater slope deposits in southern Lake Tanganyika (East Africa): Effects of upwelling and minor lake level oscillations Sedimentary geochemistry of deepwater slope deposits in southern Lake Tanganyika (East Africa): Effects of upwelling and minor lake level oscillations
Lake Tanganyika ranks among the most valuable modern analogs for understanding depositional processes of carbonaceous sediments in ancient tropical rifts. Prior research on Lake Tanganyika has emphasized the importance of bottom-water anoxia, depositional processes (hemipelagic settling versus gravity flows), and large-scale (100s of meters) lake level change on the quality of...
Authors
Michael M. McGlue, Geoffrey S. Ellis, McKenzie A Brannon, Jennifer C Latimer, Jeffery S Stone, Sarah J. Ivory, Neema E Mganza, Michael J. Soreghan, Christopher A. Scholz
Interseismic lithospheric response of the southern end of the Cascadia Subduction Zone since the 1992 Cape Mendocino M 7.1 earthquake Interseismic lithospheric response of the southern end of the Cascadia Subduction Zone since the 1992 Cape Mendocino M 7.1 earthquake
No abstract available.
Authors
Jessica Vermeer, Mark Hemphill-Haley
Evaluation of Francisella orientalis ΔpdpA as a live attenuated vaccine against piscine Francisellosis in Nile tilapia Evaluation of Francisella orientalis ΔpdpA as a live attenuated vaccine against piscine Francisellosis in Nile tilapia
Francisella orientalis is an important bacterial pathogen of marine and freshwater fish with worldwide distribution. Fish francisellosis is a severe subacute to chronic granulomatous disease, with high mortalities and high infectivity rates in cultured and wild fish. To date, there is no approved vaccine for this disease. In this study, we evaluated the efficacy of a defined F...
Authors
Fernanda de Alexandre Sebastiao, John D. Hansen, Esteban Soto
Eimeria albigulae (Apicomplexa: Eimeriidae): New host and distributional record from the Bryant's woodrat, Neotoma bryanti (Rodentia: Cricetidae), from California, U.S.A. Eimeria albigulae (Apicomplexa: Eimeriidae): New host and distributional record from the Bryant's woodrat, Neotoma bryanti (Rodentia: Cricetidae), from California, U.S.A.
Fecal samples, collected in July 2020 and April–May 2021 from 17 Bryant's woodrats, Neotoma bryanti Merriam, from 3 sites in San Diego, Orange, and San Bernardino counties, California, were examined for coccidial parasites. Three of 8 (38%) woodrats from a single site in San Diego County were found to be passing oocysts of Eimeria albigulae Levine, Ivens, and Kruidenier, 1957...
Authors
Chris T. McAllister, John A. Hnida, Robert N. Fisher
NABat ML: Utilizing deep learning to enable crowdsourced development of automated, scalable solutions for documenting North American bat populations NABat ML: Utilizing deep learning to enable crowdsourced development of automated, scalable solutions for documenting North American bat populations
Bats play crucial ecological roles and provide valuable ecosystem services, yet many populations face serious threats from various ecological disturbances. The North American Bat Monitoring Program (NABat) aims to use its technology infrastructure to assess status and trends of bat populations, while developing innovative and community-driven conservation solutions.Here, we present NABat...
Authors
Ali Khalighifar, Benjamin S. Gotthold, Erin Adams, Jenny K. Barnett, Laura O. Beard, Eric R. Britzke, Paul A. Burger, Kimberly Chase, Zackary Cordes, Paul M. Cryan, Emily Ferrall, Christopher T. Fill, Scott E. Gibson, G. Scott Haulton, Kathryn Irvine, Lara S. Katz, William L. Kendall, Christen A. Long, Oisin Mac Aodha, Tessa McBurney, Sarah McCarthy-Neumann, Matthew W. McKown, Joy O’Keefe, Lucy D. Patterson, Kristopher A. Pitcher, Matthew Rustand, Jordi L. Segers, Kyle Seppanen, Jeremy L. Siemers, Christian Stratton, Bethany R. Straw, Theodore J. Weller, Brian E. Reichert
System characterization report on the Amazônia-1 multispectral sensor System characterization report on the Amazônia-1 multispectral sensor
Executive Summary This report addresses system characterization of the Instituto Nacional de Pesquisas Espaciais Amazônia-1 satellite and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports present and detail the methodology and procedures for...
Authors
James C. Vrabel, Gregory L. Stensaas, Cody Anderson, Jon Christopherson, Minsu Kim, Seonkyung Park