Articles
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.
Filter Total Items: 77863
Special issue “Understanding phreatic eruptions - recent observations of Kusatsu-Shirane volcano and equivalents -” Special issue “Understanding phreatic eruptions - recent observations of Kusatsu-Shirane volcano and equivalents -”
No abstract available.
Authors
Yasuo Ogawa, Takeshi Ohba, Tobias Fischer, Mare Yamamoto, A.D. Jolly
The 180-km-long Meers-Willow Fault System in the Southern Oklahoma Aulacogen: A potential U.S. mid-continent seismic hazard The 180-km-long Meers-Willow Fault System in the Southern Oklahoma Aulacogen: A potential U.S. mid-continent seismic hazard
We integrate new high-resolution aeromagnetic data with seismic reflection data, well logs, satellite remote sensing, and field observations to provide a regional view of buried and exposed structures in the Southern Oklahoma Aulacogen and to assess their potential for future seismicity. Trends ranging from NW−SE to ∼E−W, peaking at 330° ± 4.5° and 280° ± 3°, dominate the magnetic...
Authors
Brandon F. Chase, Folarin Kolawole, Estella A. Atekwana, Brett M. Carpenter, Molly Turko, Mohamed Abdelsalam, Carol A. Finn
Integrative monitoring strategy for marine and freshwater harmful algal blooms and toxins across the freshwater-to-marine continuum Integrative monitoring strategy for marine and freshwater harmful algal blooms and toxins across the freshwater-to-marine continuum
Many coastal states throughout the USA have observed negative effects in marine and estuarine environments caused by cyanotoxins produced in inland waterbodies that were transported downstream or produced in the estuaries. Estuaries and other downstream receiving waters now face the dual risk of impacts from harmful algal blooms (HABs) that occur in the coastal ocean as well as those...
Authors
Meredith D. A. Howard, Jayme Smith, David A. Caron, Raphael Kudela, Keith A. Loftin, Kendra Hayashi, Rich Fadness, Susan Fricke, Jacob Kann, Miranda Roethler, A.O. Tatters, Susanna Theroux
Satellite remote sensing of crop water use across the Missouri River Basin for 1986–2018 period Satellite remote sensing of crop water use across the Missouri River Basin for 1986–2018 period
Understanding historical crop water use (CWU) dynamics is important to improve land and water management. In this study, well-validated (coefficient of determination = 0.91, percent bias = 4%, and percent root mean square error = 11.8%) Landsat-based actual evapotranspiration (ETa) time-series estimations were used to (1) assess summer season CWU (CWU-Su) dynamics, (2) investigate CWU-Su...
Authors
Arun Bawa, Gabriel B. Senay, Sandeep Kumar
Informing surveillance through the characterization of outbreak potential of chronic wasting disease in white-tailed deer Informing surveillance through the characterization of outbreak potential of chronic wasting disease in white-tailed deer
Understanding the role that an environmental prion reservoir plays in the outbreak dynamics of chronic wasting disease (CWD) in free ranging white-tailed deer (Odocoileus virginianus) is critical for the allocation of disease surveillance resources by state and provincial wildlife agencies. We hypothesized that demographic, ecological, and epidemiological configurations naturally...
Authors
Brenda J. Hanley, Michelle Carstensen, Daniel P. Walsh, Sonja A. Christensen, Daniel J. Storm, James G. Boothe, Joseph Guinness, Cara E. Them, Md Sohel Ahmed, Krysten L. Schuler
Characterizing storm-induced coastal change hazards along the United States West Coast Characterizing storm-induced coastal change hazards along the United States West Coast
Traditional methods to assess the probability of storm-induced erosion and flooding from extreme water levels have limited use along the U.S. West Coast where swell dominates erosion and storm surge is limited. This effort presents methodology to assess the probability of erosion and flooding for the U.S. West Coast from extreme total water levels (TWLs), but the approach is applicable...
Authors
James B. Shope, Li H. Erikson, Patrick L. Barnard, Curt D. Storlazzi, Katherine A. Serafin, Kara S. Doran, Hilary F. Stockdon, Borja G. Reguero, Fernando J. Mendez, Sonia Castanedo, Alba Cid, Laura Cagigal, Peter Ruggiero
Endemic Guadalupe bass (Micropterus treculii) are supported by isotopically distinct resources in tributary versus mainstem river food webs Endemic Guadalupe bass (Micropterus treculii) are supported by isotopically distinct resources in tributary versus mainstem river food webs
We used stable isotope analysis to investigate differences in Guadalupe bass (Micropterus treculii) resource use that might be associated with population-level variation in mainstem river versus tributary stream habitats. Guadalupe bass from mainstem sites had higher δ13C and δ15N values compared to those collected in tributaries, likely reflecting greater importance of algae as a basal...
Authors
Allison A. Pease, Jessica E. Pease, Preston T. Bean, Timothy B. Grabowski
Response study of a tall San Diego, California building inferred from the M7.1 July 5, 2019 Ridgecrest, California earthquake motions Response study of a tall San Diego, California building inferred from the M7.1 July 5, 2019 Ridgecrest, California earthquake motions
The shaking of a new 24-story tall building in San Diego, California, was recorded by its seismic monitoring array during the M7.1 Ridgecrest, California earthquake of July 5, 2019. The building is located ~340 km from the epicenter of the event. The building is a special moment framed (SMF) steel structure with reduced beam sections (RBS) and viscous damper systems (DS). Peak...
Authors
Mehmet Celebi, Daniel Swensen
Diverse aging rates in ectothermic tetrapods provide insights for the evolution of aging and longevity Diverse aging rates in ectothermic tetrapods provide insights for the evolution of aging and longevity
Comparative studies of mortality in the wild are necessary to understand the evolution of aging; yet, ectothermic tetrapods are underrepresented in this comparative landscape, despite their suitability for testing evolutionary hypotheses. We present a study of aging rates and longevity across wild tetrapod ectotherms, using data from 107 populations (77 species) of nonavian reptiles and...
Authors
Beth A. Reinke, Hugo Cayuela, Fredric J. Janzen, Jean-François Lemaitre, Jean-Michel Gaillard, A. Michelle Lawing, John B. Iverson, Ditte G Christiansen, Iñigo Martínez-Solano, Gregorio Sánchez-Montes, Jorge S. Gutiérrez, Francis L Rose, Nicola J. Nelson, Susan Keall, Alain J Crivelli, Theodoros Nazirides, Annegret Grimm-Seyfarth, Klaus Henle, Emiliano Mori, Gaetan Guiller, Rebecca Homan, Anthony Olivier, Erin L. Muths, Blake R. Hossack, Xavier Bonnet, David S. Pilliod, Marieke Lettink, Tony Whitaker, Benedikt R. Schmidt, Michael G. Gardner, Marc Cheylan, Francoise Poitevin, Ana Golubovic, Ljiljana Tomovic, Dragan Arsovski, Richard A Griffiths, Jan W. Arntzen, Jean-Pierre Baron, Jean-Francois Le Galliard, Thomas Tully, Luca Luiselli, Massimo Capula, Lorenzo Rugiero, Rebecca M. McCaffery, Lisa A Eby, Briggs-Gonzalez; Venetia, Frank Mazzotti, David M. Pearson, Brad A. Lambert, David M. Green, Nathalie Jreidini, Claudio Angelini, Graham Pyke, Jean-Marc Thirion, Pierre Joly, Jean-Paul Lena, Tony Tucker, Limpus, Pauline Priol, Aurelien Besnard, Pauline Bernard, Kristin Stanford, Richard S. King, Justin M Garwood, Jaime Bosch, Franco Souza, Jaime Bertoluci, Shirley Famelli, Kurt Grossenbacher, Omar Lenzi, Kathleen Matthews, Sylvain Boitaud, Deanna H. Olson, Tim Jessop, Graeme Gillspie, Jean Clobert, Murielle Richard, Andrés Valenzuela-Sánchez, Gary M. Fellers, Patrick M. Kleeman, Brian J. Halstead, Evan H. Campbell Grant, Phillip G Byrne, Thierry Fretey, Gernard Le Garff, Pauline Levionnois, John C. Maerz, Julian Pichenot, Kurtulus Olgun, Nazan Uzum, Aziz Avci, Claude Miaud, Johan Elmberg, Gregory P Brown, Richard Shine, Nathan F Bendik, Lisa O’Donnell, Courtney L. Davis, Michael J Lannoo, Rochelle M Stiles, Robert M Cox, Aaron M Reedy, Daniel A. Warner, Eric Bonnaire, Kristine Grayson, Roberto Ramos-Targarona, Eyup Baskale, David J. Munoz, John Measey, F. Andre de Villiers, Will Selman, Victor Ronget, Anne M. Bronikowski, David A W Miller
Mega-depressions on the Cocos Ridge: Links between volcanism, faults, hydrothermal circulation, and dissolution Mega-depressions on the Cocos Ridge: Links between volcanism, faults, hydrothermal circulation, and dissolution
High-resolution bathymetry and 3D seismic data along the Cocos Ridge reveal a 245 km2 field of ∼1 to 4 km in diameter seafloor depressions. The seafloor depressions are part of a two-tiered honeycomb pattern. The lower-tier depressions have steep faults that truncate strata with chaotic internal reflections consistent with sediment collapse into the depression. These extend into a lens...
Authors
Jared W. Kluesner, Eli Silver, Nathaniel Bangs, Cesar Ranero, Stephanie Nale, James Gibson, Kirk McIntosh
Temporal segregation in spawning between native Yellowstone cutthroat trout and introduced rainbow trout Temporal segregation in spawning between native Yellowstone cutthroat trout and introduced rainbow trout
Hybridisation with introduced taxa poses a threat to native fish populations. Mechanisms of reproductive isolation can limit or prevent hybridisation between closely related species. Understanding how these mechanisms interact between the same species across geographically distinct occurrences of secondary contact, and how regional factors influence them, can inform our understanding of
Authors
John M. Fennell, William C. Rosenthal, Catherine E. Wagner, Jason C. Burckhardt, Annika W. Walters
Population genetics reveals bidirectional fish movement across the Continental Divide via an interbasin water transfer Population genetics reveals bidirectional fish movement across the Continental Divide via an interbasin water transfer
Interbasin water transfers are becoming an increasingly common tool to satisfy municipal and agricultural water demand, but their impacts on movement and gene flow of aquatic organisms are poorly understood. The Grand Ditch is an interbasin water transfer that diverts water from tributaries of the upper Colorado River on the west side of the Continental Divide to the upper Cache la...
Authors
Audrey Harris, Sara J. Oyler-McCance, Jennifer A. Fike, Matthew P Fairchild, Christopher M Kennedy, Harry J Crockett, Dana L. Winkelman, Yoichiro Kanno