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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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Taking heat (downstream): Simulating groundwater and thermal equilibrium controls on annual paired air–water temperature signal transport in headwater streams Taking heat (downstream): Simulating groundwater and thermal equilibrium controls on annual paired air–water temperature signal transport in headwater streams
Headwater stream temperature often exhibits spatial variation at the kilometer-scale, but the relative importance of the underlying hydrogeological processes and riverine perturbations remains poorly understood. In this study, we investigated the relative importance of groundwater (GW) and other processes on downstream annual stream temperature signal characteristics using deterministic...
Authors
Zachary Johnson, Martin A. Briggs, Craig D. Snyder, Brittany G. Johnson, Nathaniel P. Hitt
Rainfall intensification amplifies exposure of American Southwest to conditions that trigger postfire debris flows Rainfall intensification amplifies exposure of American Southwest to conditions that trigger postfire debris flows
Short-duration, high-intensity rainfall can initiate deadly and destructive debris flows after wildfire. Methods to estimate the conditions that can trigger debris flows exist and guidance to determine how often those thresholds will be exceeded under the present climate are available. However, the limited spatiotemporal resolution of climate models has hampered efforts to characterize...
Authors
Matthew A. Thomas, Allison C. Michaelis, Nina S. Oakley, Jason W. Kean, Victor A. Gensini, Walker S. Ashley
Systematic assessment of long-read RNA-seq methods for transcript identification and quantification Systematic assessment of long-read RNA-seq methods for transcript identification and quantification
The Long-read RNA-Seq Genome Annotation Assessment Project Consortium was formed to evaluate the effectiveness of long-read approaches for transcriptome analysis. Using different protocols and sequencing platforms, the consortium generated over 427 million long-read sequences from complementary DNA and direct RNA datasets, encompassing human, mouse and manatee species. Developers...
Authors
Francisco J. Pardo-Palacios, Dingjie Wang, Fairlie Reese, Mark Diekhans, Silvia Carbonell-Sala, Brian Williams, Jane E. Loveland, Maite De María, Matthew S. Adams, Gabriela Balderrama-Gutierrez, Amit K. Behera, Jose M. Gonzalez Martinez, Toby Hunt, Julien Lagarde, Cindy E. Liang, Haoran Li, Marcus Jerryd Meade, David A. Moraga Amador, Andrey D. Prjibelski, Inanc Birol, Hamed Bostan, Ashley M. Brooks, Muhammed Hasan Celik, Ying Chen, Mei R.M. Du, Colette Felton, Jonathan Goke, Saber Hafezqorani, Ralf Herwig, Hideya Kawaji, Joseph Lee, Jian-Liang Li, Matthias Lienhard, Alla Mikheenko, Dennis Mulligan, Ka Ming Nip, Mihaela Pertea, Matthew E. Ritchie, Andre D. Sim, Alison D. Tang, Yuk Kei Wan, Changqing Wang, Brandon Y. Wong, Chen Yang, If Barnes, Andrew E. Berry, Salvador Capella-Gutierrez, Alyssa Cousineau, Namrita Dhillon, Jose M. Fernandez-Gonzalez, Luis Ferrandez-Peral, Natàlia Garcia-Reyero, Stefan Gotz, Carles Hernandez-Ferrer, Liudmyla Kondratova, Tianyuan Liu, Alessandra Martinez-Martin, Carlos Menor, Jorge Mestre-Tomas, Jonathan M. Mudge, Nedka G. Panayotova, Alejandro Paniagua, Dmitry Repchevsky, Xingjie Ren, Eric Rouchka, Brandon Saint-John, Enrique Sapena, Leon Sheynkman, Melissa Laird Smith, Marie-Marthe Suner, Hazuki Takahashi, Ingrid A. Youngworth, Piero Carninci, Nancy D. Denslow, Roderic Guigo, Margaret Hunter, Rene Maehr, Yin Shen, Hagen U. Tilgner, Barbara J. Wold, Christopher Vollmers, Adam Frankish, Kin Fai Au, Gloria M. Sheynkman, Ali Mortazavi, Ana Conesa, Angela N. Brooks
Earthquake scenario development in conjunction with the 2023 USGS National Seismic Hazard Model Earthquake scenario development in conjunction with the 2023 USGS National Seismic Hazard Model
We present earthquake scenarios developed to accompany the release of the 2023 update to the US Geological Survey National Seismic Hazard Model (NSHM). Scenarios can serve a range of local and regional needs, from developing proactive-targeted mitigation strategies for minimizing impending risk to aiding emergency management planning. These deterministic scenarios can also be used to...
Authors
Robert Edward Chase, Kishor S. Jaiswal, Mark D. Petersen
Subducting plate structure and megathrust morphology from deep seismic imaging linked to earthquake rupture segmentation at Cascadia Subducting plate structure and megathrust morphology from deep seismic imaging linked to earthquake rupture segmentation at Cascadia
The origin of rupture segmentation along subduction zone megathrusts and linkages to the structural evolution of the subduction zone are poorly understood. Here, regional-scale seismic imaging of the Cascadia margin is used to characterize the megathrust spanning ~900 km from Vancouver Island to the California border, across the seismogenic zone to a few tens of kilometers from the coast...
Authors
Suzanne M. Carbotte, Brian Boston, Shuoshuo Han, Brandon Shuck, Jeffrey Beeson, Juan Pablo Canales, Harold Tobin, Nathaniel C. Miller, Mladen Nedimovic, Anne M. Trehu, Michelle Lee, Madelaine Lucas, Hanchao Jian, Danqi Jiang, Liam Moser, Christine S. Anderson, Darren Judd, Jaime Fernandez, Chuck Campbell, Antara Goswami, Rajendra Gahlawat
Hirsutonosema embarrassi n. gen. n. sp. (Phylum Microsporidia) in the Ovary of Mucket (Actinonaias ligamentina), Plain Pocketbook (Lampsilis cardium), and Fatmucket (Lampsilis siliquoidea) (Unionidae) from the Embarrass River, Wisconsin, USA Hirsutonosema embarrassi n. gen. n. sp. (Phylum Microsporidia) in the Ovary of Mucket (Actinonaias ligamentina), Plain Pocketbook (Lampsilis cardium), and Fatmucket (Lampsilis siliquoidea) (Unionidae) from the Embarrass River, Wisconsin, USA
During an epidemiological survey following a mortality event of freshwater mussels in 2018 in the Embarrass River, Wisconsin, USA, we identified a novel microsporidian parasite in the ovaries of mucket (Actinonaias ligamentina), plain pocketbook (Lampsilis cardium), and fatmucket (Lampsilis siliquoidea) (Unionidae). Histopathology showed round-to-oval microsporidian spores in the...
Authors
Susan Knowles, Eric M. Leis, J.C. Richard, I.F. Standish, Jamie Bojko, Jesse Weinzinger, Diane L. Waller
Scenario design for infectious disease projections: Integrating concepts from decision analysis and experimental design Scenario design for infectious disease projections: Integrating concepts from decision analysis and experimental design
Across many fields, scenario modeling has become an important tool for exploring long-term projections and how they might depend on potential interventions and critical uncertainties, with relevance to both decision makers and scientists. In the past decade, and especially during the COVID-19 pandemic, the field of epidemiology has seen substantial growth in the use of scenario...
Authors
Michael C. Runge, Katriona Shea, Emily Howerton, Katie Yan, Harry Hochheiser, Erik T Rosenstrom, William J.M. Probert, Rebecca K. Borchering, Madhav V. Marathe, Bryan Lewis, Srinivasan Venkatramanan, Shaun Truelove, Justin Lessler, Cecile Viboud
Marine heatwaves affect breeding, diet and population size but not body condition of a range-edge little penguin colony Marine heatwaves affect breeding, diet and population size but not body condition of a range-edge little penguin colony
Significant marine heatwaves (MHWs) developed along the Western Australian coast in 1999 and 2011. Despite ecosystem losses and the southwards occurrence of many tropical fish species during and after the extreme MHW in 2011, there have been few studies on the effects of this MHW on seabirds, and no biological impacts related to the 1999 MHW have been reported. Using data from 1986-2019...
Authors
B.L. Cannell, William L. Kendall, J.A. Tyne, M. Bunce, Y. Hetzel, D. Murray, B. Radford
Mechanisms by which marine heatwaves impact seabirds Mechanisms by which marine heatwaves impact seabirds
Marine heatwaves (MHWs) are characterized by periods of extreme warming of local to basin-scale marine habitat. Effects of MHWs on some seabirds (e.g. mass die-offs) are well documented, but mechanisms by which seabirds respond to MHWs remain poorly understood. Following from a symposium at the 3rd World Seabird Conference, this Theme Section presents recent research to address this...
Authors
John F. Piatt, Mayumi L. Arimitsu, Sarah Ann Thompson, Rob Suryan, Rory Wilson, Kyle Elliott, W.J. Sydeman
Turning setbacks into stepping-stones for growth in conservation paleobiology Turning setbacks into stepping-stones for growth in conservation paleobiology
Conservation paleobiology is a cross-disciplinary field that utilizes the geohistorical record of past life on Earth to inform present-day decisions in conservation and restoration and assist in planning for future natural resource management. However, information on how past ecosystems and species responded to environmental change over decadal to millennial timescales is rarely...
Authors
G. Lynn Wingard, Chris L. Schneider, Gregory P. Dietl, Damien A. Fordham
Fish invasion of prairie pothole wetlands reduces amphipod abundance, a key vertebrate forage Fish invasion of prairie pothole wetlands reduces amphipod abundance, a key vertebrate forage
Fishes have spread into previously fishless wetlands, likely affecting other species. In the Prairie Pothole Region of North America, the invasion of fish into wetlands is facilitated by interactions of altered land use, climate, and hydrology. We aimed to understand the effects of fishes on amphipods, which are macroinvertebrates that vertebrates rely on as forage. We hypothesized the...
Authors
Jake D. Carleen, Danelle M. Larson, Michael J. Anteau, Megan J. Fitzpatrick, Andrew W. Hafs, Carl W. Isaacson, Breanna R. Keith
Breeding ecology of White-tailed Hawks (Geranoaetus albicaudatus) on Texas barrier islands Breeding ecology of White-tailed Hawks (Geranoaetus albicaudatus) on Texas barrier islands
The White-tailed Hawk (Geranoaetus albicaudatus) is listed as a state threatened species in Texas. It occupies prairies and savannas of the Gulf Coastal Plain, but also the barrier islands, many of which are exposed to rapid development and other human disturbances. This is a concern as White-tailed Hawks are known to be highly sensitive to nesting disturbance. We examined the breeding...
Authors
Clint W. Boal, Carey L. Haralson-Strobel, C. Craig Farquhar