Chapter three - Global SSEBop actual evapotranspiration modeling and mapping using the VIIRS data
Gabriel B. Senay, Stefanie Kagone, Kul Bikram Khand, Gabriel Edwin Lee Parrish, Claudia Young, Michael Budde
2025, Book chapter, Evapotranspiration in agro-ecosystems and forestry
AActual evapotranspiration (ETa) is an essential climate variable that can be used for drought monitoring and water availability assessment because of its close connection with vegetation, soil moisture, and the water cycle. An operational ETa using the Visible Infrared Imaging Radiometer Suite (VIIRS) and global weather datasets was developed through...
‘The fish that stop’: Drivers of historical decline for Pacific cod and implications for modern management in an era of rapidly changing climate
Loren McClenachan, Bruce T. Anderson, Jason A. Addison, Steven J. Barbeaux, Karoline Moore, Kai Muir, Katherine L. Reedy, Ingrid B. Spies, Catherine F. West
2025, Philosophical Transactions of the Royal Society B: Biological Sciences (380)
n the Gulf of Alaska, a series of marine heat waves depleted Pacific cod (Gadus macrocephalus) biomass to the lowest abundance ever recorded and led to the fishery’s closure in 2020. Although the fishery has been productive for decades, this collapse may have historical precedents. Traditional knowledge holders refer to...
Identifying conditions associated with outliers produced by three different chlorophyll fluorometers: A comparison of instrumentation and development of correction formulae
Emily T. Richardson, Tamara E. C. Kraus, Crystal Lee Sturgeon, Katy O’Donnell, Brian A. Bergamaschi
2025, Limnology & Oceanography: Methods (23) 673-687
Measurements of chlorophyll concentration reported by fluorometers (fChl) are used in environmental research and monitoring, as inputs to models, and in the interpretation of remote sensing data. Researchers and managers benefit from understanding how to interpret and ensure the accuracy of fChl data collected by in situ fluorometers. Although fChl...
Snow refugia: Managing temperate forest canopies to maintain winter conditions
M.A. Pastore, S.J. Nelson, E.A. Burakowski, A.R. Contosta, A.W. D’Amato, S. Garlick, E. O. Lindsey, D.A. Lutz, Toni Lyn Morelli, A.P.K. Siren, Grace A. Smith, A. Weiskittel
2025, Ecosphere (16)
Climate change is reducing snowpack across temperate regions with negative consequences for human and natural systems. Because forest canopies create microclimates that preserve snowpack, managing forests to support snow refugia—defined here as areas that remain relatively buffered from contemporary climate change over time that sustain snow quality, quantity, and/or timing...
Determination of per- and polyfluoroalkyl substances in water by direct injection of matrix-modified centrifuge supernatant and liquid chromatography/tandem mass spectrometry with isotope dilution
James L. Gray, Leslie K. Kanagy, Christopher J. Kanagy, Cyrissa A. Anderson
2025, Techniques and Methods 5-B13
A direct-injection liquid chromatography/tandem mass spectrometry method was developed to determine 34 per- and polyfluoroalkyl substances (PFAS), including selected branched isomers, in centrifuge supernatant of matrix-modified (amended with approximately 50 percent methanol) water samples. The method has been validated in reagent water, surface water, groundwater, and wastewater effluent. Other water...
Methodology for compilation of previously published contour data showing the altitude of the base of Dakota Sandstone on the Colorado Plateau, Arizona, Colorado, New Mexico, and Utah
Donald S. Sweetkind
2025, Data Report 1213
Structure contours and other geologic information from numerous published geologic maps were digitized and compiled into a digital dataset showing the configuration of a single stratigraphic datum, the base of the Dakota Sandstone and its equivalents across the Colorado Plateau. The principal maps compiled in digital form are a series...
The 3D Elevation Program—Supporting Louisiana's economy
Chris Cretini
2025, Fact Sheet 2025-3034
Introduction Recent and ongoing collections of high-resolution elevation data in Louisiana are providing information that supports improved critical public safety modeling and enables the State to strengthen its efforts to fight the effects of land subsidence and sea-level rise. The availability of current and accurate three-dimensional (3D) elevation data supports numerous...
Assessment of undiscovered conventional oil and gas resources of the West Greenland-East Canada Province, 2023
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Phuong A. Le, Andrea D. Cicero, Ronald M. Drake II, Geoffrey S. Ellis, Michael H. Gardner, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller, Kristen R. Marra, Kira K. Timm, Scott S. Young
2025, Fact Sheet 2025-3016
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 7.8 billion barrels of oil and 91.9 trillion cubic feet of gas in the West Greenland-East Canada Province....
Comparative genomics of Bacillus anthracis A and B-clades reveals genetic variation in genes responsible for spore germination
Sankwetea P. Mokgokong, Ayesha Hassim, Tendo Mafuna, Wendy Christine Turner, Henriette van Heerden, Kgaugelo E. Lekota
2025, Genomics (117)
Bacillus anthracis, the causative agent of anthrax, is composed of three genetic clades (A, B, and C). Clade-A is the most common and distributed worldwide, B-clade has a narrow geographic distribution, and C-clade is rare. South Africa's Kruger National Park (KNP) has high diversity of B. anthracis, with strains from A...
Ecosystem-engineered infections: Beaver-modified wetlands are associated with conflicting drivers of amphibian pathogen prevalence
Leah M Fischer, Angela D Luis, Blake Hossack, Taegan A. McMahon, Winsor H Lowe
2025, Royal Society Open Science (12)
Beavers are ecosystem engineers and keystone species that protect freshwater resources and increase biodiversity. Beaver reintroductions are promoted for amphibian conservation, yet their impact on Batrachochytrium dendrobatidis (Bd), a pathogen linked with amphibian population declines worldwide, remains unclear. We investigated the abiotic and biotic drivers of Bd prevalence in Columbia spotted frogs...
Principles of riverscape health
Hayley Corrine Glassic, Robert Al-Chokhachy, Joseph Wheaton, William W. Macfarlane, Christopher Jordan, Brian M. Murphy, Scott Shahverdian, Stephen Bennett, Nicolaas Bouwes, Kirstie Fryirs, Gary Brierley, Damion Ciotti, Philip Bailey, Karen Bartlet, Barbara Belletti, Simone Bizzi, James Brasington, Reid Camp, Emily Fairfax, Jordan Gilbert, Justin Jimenez, Jeremy D Maestas, Timmie Mandish, Amy McNamara, Scott R Miller, Baptiste Marizot, Mathias Perle, Herve Piegay, Helen Reid, Lindsay V. Reynolds, William Saunders, Alden Shallcross, Peter Skidmore, Rose Smith, Benoît Terrier, Gus Wathen, Nick Weber
2025, WIREsWATER (Wiley Interdisciplinary Reviews Primer) (12)
Riverscapes are the integration of terrestrial and aquatic systems from headwaters to estuaries that provide habitat and ecosystem benefits when in good health. However, current riverscape degradation is pervasive, impairing the function and resulting benefits of these systems. Healthy riverscapes are adaptive and some can ‘heal’ after disturbance with minimal...
The breeding season and movement ecology of male white‐tailed deer in southwest Wisconsin
Matthew Hunsaker, Marie L.J. Gilbertson, Daniel J. Storm, Wendy Christine Turner
2025, Ecology and Evolution (15)
White-tailed deer (Odocoileus virginianus; hereafter, deer) have been widely studied regarding their breeding ecology and responses to hunting pressures. However, variations in defining the breeding season—its duration and timing—across studies have created uncertainty about whether regional differences in deer breeding ecology stem from ecological factors or methodological inconsistencies. This study...
2022 McKinney rain-on-wildfire event, dissolved oxygen sags, and a fish kill on the Klamath River, California
Jennifer Curtis, Grant Johnson, Josh Cahill, Laurel Genzoli, Clifford Dahm, Liam N. Schenk, John Oberholzer
2025, Scientific Reports (15)
The longitudinal propagation of water-quality and ecological impairments in rivers during and after wildfires remain poorly understood. In Northern California, the 2022 McKinney Fire burned 243 km2 of the Klamath National Forest, with 83% of the burned area classified as moderate to high severity. During the active wildfire, a high-intensity monsoonal...
Spatial and temporal variability of perfluoroalkyl and polyfluoroalkyl substances in major rivers of New Mexico, USA
Kimberly R. Beisner
2025, Water Environment Research (97)
Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are ubiquitous in the environment, but sources that contribute to temporal and spatial variability in surface waters are not well defined. Many states are assessing PFAS in water resources, and insight from these statewide assessments can help guide future sampling efforts. A statewide assessment of...
Unintended indirect effects limit elk productivity from supplemental feeding in the Greater Yellowstone Ecosystem
Brian Scott Dugovich, Emily M. Tomaszewski, Eric K. Cole, Sarah Dewey, Daniel MacNulty, Brandon Scurlock, Daniel Stahler, Paul C. Cross
2025, Ecosphere (16)
The widespread practice of supplemental feeding, a bottom-up forcing of resource availability, is intended to improve wildlife population health and survival. However, supplemental feeding could trigger indirect effects by altering predation rates and disease dynamics. We investigated the effects of feeding on three key elk (Cervus canadensis) population productivity metrics...
Preparation and analysis methods for fish tissue collected from Lake Koocanusa, Montana
Travis S. Schmidt, Ashley Morgan Bussell, Molly A. Moloney, James L. Dunnigan, Trevor M. Selch, Jessica E. Brandt, Craig A. Stricker, A. Robin Stewart, Veronika A. Kocen, Danielle M. Cleveland, Vicki S. Blazer, Sarah E. Janssen, Jacob M. Ogorek, Meghan Dunn, Theresa L. McBride, Katie B. Adams, Benjamin P. Colman, Matt Young, Jennie Christensen
2025, Open-File Report 2025-1034
Lake Koocanusa, a reservoir, receives mine wastes from metallurgical coal mines in the Elk River Valley of British Columbia, Canada. Selenium and other elements discharged by the mines into the waters of the United States can pose unknown risks to aquatic life. The U.S. Geological Survey Wyoming-Montana Water Science Center...
Wake Atoll vessel movement biosecurity program efficacy
Stacie A. Hathaway, James C. Molden, Robert Peck, Kristen R. Rex, Cheryl S. Brehme, Theo Black, Robert N. Fisher
2025, Open-File Report 2025-1026
Executive SummaryThe purpose of this Wake Atoll Vessel Movement Biosecurity Program Efficacy document is to provide the United States Air Force (USAF) with an unbiased review of the current (2015; hereafter referred to as the 2015 Biosecurity Plan) biosecurity plan for the military base Wake Island Airfield (WIA) on Wake...
Revealing organofluorine contamination in effluents and surface waters with complementary analytical approaches: Fluorine-19 nuclear magnetic resonance spectroscopy (19F-NMR) and liquid chromatography-tandem mass spectrometry (LC-MS/MS)
K.A. Faber, W.C.K Pomerantz, James L. Gray, Laura E. Hubbard, Dana W. Kolpin, W.A. Arnold
2025, Environmental Science & Technology (59) 14695-14706
Fluorinated organic contaminants, including per- and polyfluoroalkyl substances (PFASs) and fluorinated pesticides and pharmaceuticals (FPPs), pose a persistent threat to environmental health. Widely used liquid chromatography-tandem mass spectrometry (LC-MS/MS) methods fail to capture large fractions of total organofluorine in environmental samples, confounding the assessment of fluorinated contamination. Fluorine-19 nuclear magnetic...
U.S. Geological Survey Groundwater Climate Response Network, 2024
Jason M. Fine, Rodney R. Caldwell
2025, General Information Product 254
As of October 2024, the U.S. Geological Survey (USGS) operated 588 sites across the United States and its territories as part of the Groundwater Climate Response Network (CRN). The CRN is comprised of wells selected to monitor the effects of climate variability, such as droughts, on groundwater levels nationwide. The...
Molecular evolution of TRPC4 regulatory sequences supports a role in mammalian thermoregulatory adaptation
Robert S. Cornman
2025, PeerJ (13)
BackgroundProteins encoded by the canonical transient receptor potential (Trpc) gene family form transmembrane channels involved in diverse signal-transduction pathways. Trpc4 has been shown necessary for the induction of nonshivering thermogenesis (NST) in mice, a key component of which is thermogenic brown adipose tissue (BAT). In bats, Trpc4 exhibited diversifying selection within exons encoding...
The structural and functional impacts of invasive Psidium cattleianum in forests on the Island of Hawai’i
Tara Seely, Lucas Fortini, Yutong Liang, John J. Battles
2025, Ecosystems (28)
During the past century, the proliferation of invasive species has contributed to loss of biodiversity and ecosystem degradation. In forests, invasive tree species can alter ecosystem function, but the underlying mechanisms of these changes are not fully understood. We use the ongoing invasion of P. cattleianum on the Island of Hawai’i to...
Chlorophyll trends are negative for lakes but positive for estuarine–coastal waters
James E. Cloern, Alan Jassby
2025, PNAS (122)
Nutrient (nitrogen and phosphorus) pollution is an environmental problem of global concern because overenrichment of water bodies increases phytoplankton biomass and ecosystem metabolism, depletes oxygen in bottom waters, and increases the frequency and intensity of harmful algal blooms. These responses to nutrient pollution have motivated policies to reduce anthropogenic nutrient...
Soil moisture partitioning between under canopy and interspace environments in shrublands of the northern Chihuahuan Desert
Juan Pinos, Keegan Hammond, Michael C. Duniway, John P. Anderson, Niall P. Hanan, Matthew D. Petrie
2025, Ecosystems (28)
Soil moisture is a key link between hydrologic and ecologic processes in desert shrublands. Understanding how soil moisture is spatially distributed in desert shrublands provides valuable insights into how shrubs use and impact limiting water resources, and how shrublands may respond to future meteorological and climate change. Our goals were...
Comparison of Microcystin-LR degradation by UV222 and UV254
Zanna J. Leciejewski, Zachary R. Laughrey, Amanda L. Stickney, Keith A. Loftin, Natalie M. Hull
2025, Environmental Science and Technology (59) 14660-14671
Microcystin-LR (MC-LR), a toxin produced during some cyanobacterial harmful algal blooms (cyanoHABs), can harm ecosystems and require consideration in water treatment. Ultraviolet (UV)-C treatment has the potential to degrade cyanotoxins with less harmful byproducts than other treatments. This study compares MC-LR degradation in three different water types using UV-C light...
Land application of drill waste: A scope analysis
Matthew S. Varonka, Melissa A. Lombard, Todd M. Preston, Timothy T. Bartos, Jason R. Masoner, Isabelle M. Cozzarelli
2025, Journal of the Air & Waste Management Association (75) 656-669
Drilling fluid waste land application, a process where drilling wastes are spread and tilled into the land surface, has become common in some petroleum-producing states, however, the potential benefits and risks of this practice are not well studied. Drilling fluids can be water- or oil-based and can have high concentrations...
