Brandon J. Fleming, Kenneth Belitz, Courtney D. Killian
2025, Groundwater (63) 301-305
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateJack N. Carter, Caroline Hasler, Anthony Fuentes, Andrew Tholt, Leah E. Morgan, Paul R. Renne
2025, Geochimica et Cosmochimica Acta (397) 149-163
The K/Ar and 40Ar/39Ar geochronometers are based on the naturally occurring radionuclide 40K. Their precision and accuracy are limited by uncertainties on the 40K decay constants and, in the case of the 40Ar/39Ar geochronometer, the isotopic composition of neutron fluence monitors. To address these limitations, we introduce a Bayesian calibration of the 40K decay scheme....
Lucila Marie Corro, Kenneth J. Bagstad, Mehdi Heris, Peter Christian Ibsen, Karen Schleeweis, James E. Diffendorfer, Austin Troy, Kevin Megown, Jarlath P.M. O'Neil-Dunne
2025, Scientific Data (12)
Moderate-resolution (30-m) national map products have limited capacity to represent fine-scale, heterogeneous urban forms and processes, yet improvements from incorporating higher resolution predictor data remain rare. In this study, we applied random forest models to high-resolution land cover data for 71 U.S. urban areas, moderate-resolution National Land Cover Database (NLCD)...
Paul C. Hackley, Justin E. Birdwell, Ryan J. McAleer
2025, Applied Geochemistry (185)
Solid bitumen reflectance (BRo in %) is widely used as a thermal maturity proxy in source-rock reservoirs, yet solid bitumen texture and physical attributes may be affected by varying environmental constraints during its formation, e.g., water saturation, mineral catalysis, or salinity. Herein we investigated the development of solid bitumen properties during...
Ramon C. Naranjo, Zachary Johnson, Lisa Lucas, Nancy T. Baker, Christopher Green
2025, Journal of Hydrology (658)
There is a need to prioritize research and data collection in river basins by integrating information from environmental, ecological, and socioeconomic datasets to maintain acceptable water quality for human uses and ecosystem health. Multiple anthropogenic and natural stressors are responsible for driving changes in stream temperatures that can alter ecosystems...
Robert Daniel Hunter, Song S. Qian, Jason L. Fischer, Ryan Brown, Lucas Nathan, John M. Dettmers, James Roberts, Corbin David Hilling, Matthew Ross Acre, Robert L. Mapes, Ryan Young, Christine M. Mayer
2025, Fisheries Research (285)
Natural resources management is often concerned with conserving rare-native or controlling rare-invasive fishes. Informing and assessing conservation and control efforts frequently requires information from captures. When little is understood about spatial and temporal fish distributions, captures can be infrequent and costly. If successful management depends on effective management response, optimizing...
Anthony Francis Pivarunas, Margaret Susan Avery, Jonathan T. Hagstrum, Scott E.K. Bennett, Andrew T. Calvert
2025, Journal of Geophysical Research: Solid Earth (130)
The Picture Gorge Basalt (PGB) is part of the Miocene Columbia River Basalt Group (CRBG). The PGB, which outcrops in eastern Oregon, is considered coincident in time with the voluminous Grande Ronde Basalt. New radiometric ages have expanded the age‐range of the PGB, suggesting it began erupting prior to the Steens...
Jennifer G. Howeth, Sarah A. Amjad, Crysta A. Gantz, Nicholas E. Mandrak, Paul L. Angermeier, Michael P. Marchetti, Julian D. Olden, David M. Lodge
2025, Biological Invasions (27)
Biological invasions driven by international trade heighten the urgency for development of invasion risk models, as the traits and parameters that consistently predict successful invasion remain unresolved. For four regions of North America that include parts of the United States and Canada (Sacramento-San Joaquin River Basins, Lower Colorado River Basin,...
Jacob Oram, Amy Kristine Wray, Helen Trice Davis, Luz A. de Wit, Winifred F. Frick, Andrew B. Hoegh, Kathryn M. Irvine, Patrick Pollock, Andrea Nichole Schuhmann, Frank (Contractor) Charles Tousley, Brian Reichert
2025, Global Ecology and Conservation (60)
Human-built structures can provide important habitat for wildlife, but predicting which structures are most likely to be used remains challenging. To evaluate the predictive capabilities of data-driven ensemble modeling approaches, we conducted surveys for bats and signs of bat use, such as urine and guano staining, at bridges across the...
K. Dana Chadwick, Frank W. Davis, Kimberley Miner, Ryan Pavlick, Mark Reynolds, Philip A. Townsend, Philip Brodrick, Christiana Ade, Jean Allen, Leander D. L. Anderegg, Yoseline Angel, Indra Boving, Kristin B. Byrd, Petya Campbell, Luke Carberry, Katherine Cavanaugh, Kyle C. Cavanaugh, Kelly Easterday, Regina Eckert, Michelle M. Gierach, Kaitlin Gold, Erin Hestir, Fred Huemmrich, Maggie Klope, Raymond F. Kokaly, Piper Lovegreen, Kelly Luis, Conor McMahon, Nicholas Nidzieko, Francisco Ochoa, Anna Ongjoco, Elsa Ordway, Madeleine Pascolini-Campbell, Natalie Queally, Dar A. Roberts, Clare Saiki, Fabian D Schneider, Alexey N. Shiklomanov, German Silva, Jordan Snyder, Michele Thornton, Anna Trugman, Nidhi Vinod, Ting Zheng, Dulcinea M. Avouris, Brianna Baker, Latha Baskaran, Tom Bell, Megan Berg, Michael Bernas, Niklas Bohn, Renato Braghiere, Zach Breuer, Andrew J. Brooks, Nolan Burkard, Julia Burmistrova, Kerry-Anne Cawse-Nicholson, John Chapman, Johana Chazaro-Haraksin, Joel Cryer, K.C. Cushman, Kyla M. Dahlin, Phuong Dao, Athena DiBartolo, Michael Eastwood, Clayton D. Elder, Angela Giordani, Kathleen Grant, Robert O. Green, Alexa Hanson, Brendan Heberlein, Mark Helmlinger, Simon Hook, Daniel J. Jensen, Emma Johnson, Marie Johnson, Michael Kiper, Christopher Kibler, Jennifer Y. King, Kyle Kovach, Aaron Kreisberg, Daniel Lacey, Evan Lang, Christine M. Lee, Amanda M Lopez, Brittany Lopez Barreto, Andrew Maguire, Elliott Marsh, Charles E. Miller, Dieu My Nguyen, Cassandra Nickles, Jonathan Ocón, Elijah Papen, Maria Park, Benjamin Poulter, Ann M. Raiho, Porter Reim, Timothy J. Robinson, Fernando Romero Galvan, Ethan Shafron, Brenen R. Skalitzky, Sydney Stroschein, Nicole Chin Taylor, David R. Thompson, Kate Thompson, Cecily Tye, Joelie Van Beek, Cecilia Vanden Heuvel, Jonathan Vellanoweth, Evert Vermeer, Claire Villanueva-Weeks, Kristen Zumdahl, David Schimel
2025, Ecosphere (16)
We stand at the threshold of a transformative era in Earth observation, marked by space-borne visible-to-shortwave infrared (VSWIR) imaging spectrometers that promise consistent global observations of ecosystem function, phenology, and inter- and intra-annual change. However, the full value of repeat spectroscopy, the information embedded within different temporal scales, and the...
Marisa Takada Martinez, Laura D’Acunto, Stephanie Romanach
2025, Journal of Applied Ecology (62) 1137-1151
Understanding how species populations change with environmental conditions is important for implementing effective habitat management and conservation strategies. Challenges to evaluating population-level responses to environmental conditions arise when data are sparse or not spatiotemporally aligned, especially for at-risk species with small, declining numbers.We synthesized 30 years (1992–2021) of three partially...
Rosemary Hartman, Noah Knowles, Amanda Fencl, Julia Ekstrom
2025, San Francisco Estuary and Watershed Science (23)
Droughts are frequent events in the western United States, and can disrupt water supply and degrade water quality, challenging water management in the Sacramento–San Joaquin Delta (Delta). This chapter for the State of Bay–Delta Science report describes what drought means for the Delta, how drought is managed in the Delta,...
Tom D. Byl, Devin M. Moore, Champagne Cunningham, De’Etra Young
2025, Open-File Report 2025-1004
The Southeastern United States has many lakes, streams, and reservoirs that serve as important drinking water sources with recreational, agricultural, and ecological uses. However, harmful algal blooms (HABs) are becoming more common in these waters, causing health issues for humans and animals. HABs have been listed as a contaminant of...
Patrick Kroboth, Benjamin H. Stahlschmidt, Duane Chapman
2025, Journal of Fish and Wildlife Management
A piscicide delivery method was designed to selectively target Black Carp Mylopharyngodon piceus, an invasive fish species in North America, which possesses pharyngeal teeth adapted for crushing mollusk prey. Many North American mollusks exist in small, fragmented populations susceptible to local extirpation. A Black Carp-selective toxic bait deployed properly could be used...
Joel B. Sankey, Nathaniel Bransky, Lori M. Pigue, Keith Kohl, Thomas M. Gushue
2025, Data Report 1202
In May 2021, the U.S. Geological Survey’s Grand Canyon Monitoring and Research Center acquired airborne multispectral high-resolution data for the Colorado River in the Grand Canyon, Arizona. The image data, which consist of four spectral bands (red, band 1; green, band 2; blue, band 3; and near infrared, band 4)...
Jade Margerum, Julia Homann, Stuart Umbo, Gernot Nehrke, Thorsten Hoffmann, Anton Vaks, Aleksandr Kononov, Alexander Osintsev, Alena Maria Giesche, Andrew Mason, Franziska A. Lechleitner, Gideon M. Henderson, Ola Kwiecien, Sebastian F.M. Breitenbach
2025, Climate of the Past (21) 661-677
Wildfires are a rapidly increasing threat to boreal forests. While our understanding of the drivers behind wildfires and their environmental impact is growing, it is mostly limited to the observational period. Here we focus on the boreal forests of southern Siberia and exploit a U–Th-dated stalagmite from Botovskaya Cave, located...
Evin J. Fetkovich, Amy S. Morris, Isaac A. Dale, Chloe Codner, Ethan A. Kirby, Colin A. Baciocco, Ian M.J. Rogers, Derrick L. Wagner, Zachary D. Tomlinson, Eric G. Fiorentino
2025, Scientific Investigations Report 2025-5013
The 1973 Oklahoma Groundwater Law (Oklahoma Statute §82–1020.5) requires that the Oklahoma Water Resources Board conduct hydrologic investigations of the State’s groundwater basins to support a determination of the maximum annual yield for each groundwater basin. Every 20 years, the Oklahoma Water Resources Board is required to update the hydrologic...
Christopher J. Schenk, Tracey J. Mercier, Phuong A. Le, Andrea D. Cicero, Ronald M. Drake II, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller, Kira K. Timm
2025, Fact Sheet 2024-3050
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 1.2 billion barrels of oil and 6.4 trillion cubic feet of gas in Oman....
John C. Hammond, Bailey Anderson, Caelan Simeone, Manuela Brunner, Eduardo Munoz-Castro, Stacey A. Archfield, Eugene Magee, Rachael Armitage
2025, Hydrological Processes (39)
In this commentary, we aim to (1) describe ways that hydrological intensification and hydrological whiplash (sub-seasonal transitions between hydrological extremes) may impact water management decision-making, (2) introduce the complexities of identifying and quantifying hydrological extreme transitions, (3) discuss the processes controlling hydrological transitions and trends in hydrological extremes through time,...
John F. Gridder, Bradley James Udell, Brian Reichert, Jeffery T. Foster, William Louis Kendall, Tina L. Cheng, Winifred F. Frick
2025, Scientific Reports (15)
The use of quantitative real-time PCR (qPCR) to monitor pathogens is common; however, quantitative frameworks that consider the observation process, dynamics in pathogen presence, and pathogen load are lacking. This can be problematic in the early stages of disease progression, where low level detections may be treated as ‘inconclusive’ and...
Kristen Irwin Womble, Amanda E. Rosenberger
2025, Cooperator Science Series CSS-166-2025
We have developed a comprehensive database for freshwater mussels for the Duck River drainage in Tennessee, including its largest tributary, the Buffalo River. This database is intended to serve as an expandable template that could be applied statewide. The Duck River is one of the most biologically diverse rivers in...
R. Blaine McCleskey, Charles A. Cravotta III, Matthew P. Miller, Tanner William Chapin, Fred D. Tillman, Gabrielle L. Keith
2025, Applied Geochemistry (184)
Salinity levels in streams and tributaries of the Colorado River Basin have been a major concern for the United States and Mexico for over 50 years as the water is used by millions of people for domestic and industrial purposes. Recently, the United States Geological Survey expanded stream monitoring networks...
Kurt C. Heim, William R. Ardren, Jonah L. Withers, Zachery Eisenhauer, Matthew A. Mensinger, Theodore Castro-Santos
2025, North American Journal of Fisheries Management (45) 1-14
ObjectiveWe evaluated survival differences between upstream and downstream stocking for landlocked Atlantic Salmon Salmo salar smolts in a tributary to Lake Champlain.MethodsWe radio-tagged smolts and stocked them concurrently with 22,000 smolts at two release sites in 2 years. The downstream location (DS, river kilometer...
Monica Arienzo, Kelly Gleason, Graham A. Sexstone, Mae Sexauer Gustin, Melissa Schwan, Nicole Choma, Sarrah Dunham-Cheatham, Joseph R. McConnell, Peter Weisberg, Adam Csank
2025, Environmental Pollution (373)
Seasonal snow is an important source of drinking water and recreation, and for agriculture in the Rocky Mountain region. Monitoring snow-water quality can inform on the effects to the albedo and energy balance of the snowpack, and the sources of natural and anthropogenic aerosol and gases. This study analyzed metals...
Bruce E. Shaw, Kevin Ross Milner, Christine A Goulet
2025, Seismological Research Letters (96) 2431-2444
We use the deterministic earthquake simulator RSQSim to generate complex sequences of ruptures on fault systems used for hazard assessment. We show that the source motions combined with a wave propagation code create surface ground motions that fall within the range of epistemic uncertainties for the Next Generation Attenuation‐West2 set...