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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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Complete genome sequence of a novel papillomavirus in Siamese fighting fish (Betta splendens) from Trinidad and Tobago Complete genome sequence of a novel papillomavirus in Siamese fighting fish (Betta splendens) from Trinidad and Tobago
Here, we announce the complete genome of a previously undescribed papillomavirus from a betta fish, Betta splendens. The genome is 5,671 bp with a GC content of 38.2%. Variants were detected in public databases. This genome is most similar to papillomaviruses that infect sea bass (52.9 % nucleotide identity).
Authors
Lemar Blake, A. Carla Phillips-Savage, Esteban Soto, Christopher Oura, Arianne Brown-Jordan, Clayton D. Raines, Christopher B. Buck, Luke R. Iwanowicz
Paleoseismology of the Sawtooth fault and implications for fault behavior in the epicentral region of the 2020 Mw 6.5 Stanley, Idaho, earthquake Paleoseismology of the Sawtooth fault and implications for fault behavior in the epicentral region of the 2020 Mw 6.5 Stanley, Idaho, earthquake
The 2020 moment magnitude (Mw) 6.5 Stanley, Idaho, earthquake raised questions about the history and extent of complex faulting in the northwestern Centennial Tectonic Belt (CTB) and its relation to the Sawtooth normal fault and Eocene Trans‐Challis fault system (TCFS). To explore faulting in this area, we excavated a paleoseismic trench across the Sawtooth fault along the western...
Authors
Christopher B. DuRoss, Zachery Lifton, Alexandra Elise Hatem, Richard Briggs, Jessica A. Thompson Jobe, Nadine G. Reitman, Glenn D. Thackray, Mark S. Zellman, Camille Marie Collett, Harrison J. Gray, Shannon A. Mahan
A tale of two islands: Tectonic and orbital controls on marine terrace reoccupation, Channel Islands National Park, California, USA A tale of two islands: Tectonic and orbital controls on marine terrace reoccupation, Channel Islands National Park, California, USA
In areas of low uplift rate on the Pacific Coast of North America, reoccupation of emergent marine terraces by later high sea-stands has been hypothesised to explain the existence of thermally anomalous fauna (mixtures of warm and cool species) of last interglacial age. If uplift rates have been low for much of the Quaternary, it follows that higher (older) terraces should also show...
Authors
Daniel R. Muhs, Lindsey T. Groves, Kathleen R. Simmons, R. Randall Schumann, Stephen B. DeVogel
From pixels to riverscapes: How remote sensing and geospatial tools can prioritize riverscape restoration at multiple scales From pixels to riverscapes: How remote sensing and geospatial tools can prioritize riverscape restoration at multiple scales
Prioritizing restoration opportunities effectively across entire riverscape networks (i.e., riverine landscape including floodplain and stream channel networks) can be difficult when relying on in-channel, reach-scale monitoring data, or watershed-level summaries that fail to capture riverscape heterogeneity and the information necessary to implement restoration actions. Leveraging...
Authors
Hayley Corrine Glassic, Kenneth C. McGwire, William W. Macfarlane, Cashe Rasmussen, Nicolaas Bouwes, Joseph M. Wheaton, Robert Al-Chokhachy
Diatoms of North America: Nomenclatural transfers within the Bacillariophyceae 1 Diatoms of North America: Nomenclatural transfers within the Bacillariophyceae 1
No abstract available.
Authors
M.B. Edlund, Sarah A. Spaulding, Ian Wesley Bishop, Anton M. Potapov, Sylvia S. Lee, Paula C. Furey, Elena Jovanoska
Utilizing artificial nesting platforms as a management tool: Enhancing breeding productivity of Western Flycatchers (Empidonax difficilis occidentalis) in southwestern Colorado and southern Arizona, USA Utilizing artificial nesting platforms as a management tool: Enhancing breeding productivity of Western Flycatchers (Empidonax difficilis occidentalis) in southwestern Colorado and southern Arizona, USA
Artificial nesting substrates have been added around the world for many cavity-nesting bird species, but this has not been undertaken as extensively for crevice-nesting birds. The Western Cordilleran Flycatcher (Empidonax difficilis occidentalis) is a migratory, crevice-nesting flycatcher that is nest-site limited, breeding in higher elevation riparian habitats throughout intermountain...
Authors
Charles van Riper, Harold F. Greeney, Abigail J. Darrah, Andrew J. Boyce, Drew F. van Riper, Charles B. Yackulic
Ohi'a lehua (Metrosideros polymorpha): A most resilient and persistent foundation species in Hawaiian forests Ohi'a lehua (Metrosideros polymorpha): A most resilient and persistent foundation species in Hawaiian forests
Metrosideros polymorpha (‘ōhi‘a, ‘ōhi‘a lehua) is an important foundation species in Hawaiian forest habitats. The genus originated in New Zealand and was dispersed to the Hawaiian archipelago approximately 3.9 million years ago. It evolved into five distinct endemic species and one of these, Metrosideros polymorpha, further differentiated into eight varieties across what are now the...
Authors
James D. Jacobi, Hans Juergen Boehmer, Lucas Berio Fortini, Samuel M. ‘Ohukaniʻōhiʻa Gon III, Linda Mertelmeyer, Jonathan Price
Twenty years of explosive-effusive activity at El Reventador volcano (Ecuador) recorded in its geomorphology Twenty years of explosive-effusive activity at El Reventador volcano (Ecuador) recorded in its geomorphology
Shifts in activity at long-active, open-vent volcanoes are difficult to forecast because precursory signals are enigmatic and can be lost in and amongst daily activity. Here, we propose that crater and vent morphologies, along with summit height, can help us bring some insights into future activity at one of Ecuador’s most active volcanoes El Reventador. On 3 November 2002, El Reventador...
Authors
Silvia Vallejo Vargas, Angela K. Diefenbach, Elizabeth Gaunt, Marco Almeida, Patricio Ramon, Fernanda Naranjo, Karim Kelfoun
Advanced quantitative precipitation information: Improving monitoring and forecasts of precipitation, streamflow, and coastal flooding in the San Francisco Bay area Advanced quantitative precipitation information: Improving monitoring and forecasts of precipitation, streamflow, and coastal flooding in the San Francisco Bay area
Advanced Quantitative Precipitation Information (AQPI) is a synergistic project that combines observations and models to improve monitoring and forecasts of precipitation, streamflow, and coastal flooding in the San Francisco Bay Area. As an experimental system, AQPI leverages more than a decade of research, innovation, and implementation of a statewide, state-of-the-art network of...
Authors
Robert Cifelli, V Chandrasekar, Liv M. Herdman, Dave Turner, Alissa White, M. Alcott, M. C. Anderson, Patrick L. Barnard, S.K. Biswas, M. Boucher, J. Bytheway, H. Chen, H. Cutler, M. English, Li H. Erikson, F. Junyent, L. E. Johnson, J. Krebs, J. van de Lindt, J. Kim, Marty L. Leonard, Y. Ma, M. Marquis, W. Moninger, G. Pratt, C. Radhakrishnan, Michael Shields, J. Spaulding, Babak Tehranirad, R. S. Webb
A framework for disaggregating remote-sensing cropland into rainfed and irrigated classes at continental scale A framework for disaggregating remote-sensing cropland into rainfed and irrigated classes at continental scale
Agriculture consumes the largest share of freshwater globally; therefore, distinguishing between rainfed and irrigated croplands is essential for agricultural water management and food security. In this study, a framework incorporating the Budyko model was used to differentiate between rainfed and irrigated cropland areas in Africa for eight remote sensing landcover products and a high...
Authors
Afua Owusu, Stefanie Kagone, Mansoor Leh, Naga Manohar Velpuri, Murali Krishna Gumma, Benjamin Ghansah, Paranamana Thilina-Prabhath, Komlavi Akpoti, Kirubel Mekonnen, Primrose Tinonetsana, Ismail Mohammed
Improving crop-specific groundwater use estimation in the Mississippi Alluvial Plain: Implications for integrated remote sensing and machine learning approaches in data-scarce regions Improving crop-specific groundwater use estimation in the Mississippi Alluvial Plain: Implications for integrated remote sensing and machine learning approaches in data-scarce regions
Study region
Authors
Sayantan Majumdar, Ryan Smith, Fahim Hasan, Jordan Wilson, Vincent E. White, Emilia L. Bristow, James R. Rigby, Wade H. Kress, Jaime A. Painter
Application of lidar to assess the habitat selection of an endangered small mammal in an estuarine wetland environment Application of lidar to assess the habitat selection of an endangered small mammal in an estuarine wetland environment
Light detection and ranging (lidar) has emerged as a valuable tool for examining the fine-scale characteristics of vegetation. However, lidar is rarely used to examine coastal wetland vegetation or the habitat selection of small mammals. Extensive anthropogenic modification has threatened the endemic species in the estuarine wetlands of the California coast, such as the endangered salt...
Authors
J.S. Hagani, J.Y. Takekawa, S.M. Skalos, Michael L. Casazza, M.K. Riley, S.A. Estrella, L. Barthman-Thompson, K.R. Smith, Kevin J. Buffington, Karen M. Thorne