Comparisons of shoreline positions from satellite-derived and traditional field- and remote-sensing techniques
Andrea C. O'Neill, Sharon F. Batiste, Daniel D. Buscombe, Joseph Burgess, Kara S. Doran, Ann E. Gibbs, Rachel E. Henderson, Julia L. Heslin, Catherine N. Janda, Mark A. Lundine, Joseph F. Terrano, Jonathan A. Warrick, Kathryn M. Weber
2025, Open-File Report 2025-1054
Satellite-derived shorelines (SDS) have the potential to help researchers answer critical coastal science questions and support work to predict coastal change by filling in the spatial and temporal gaps present in current field-based and remote-sensing data collection methods. The U.S. Geological Survey conducted comparison analyses of traditionally sourced shorelines and...
Density as a mechanism linking habitat disturbance to increased pathogen prevalence: Evidence from a natural experiment
Gabriel M. Barrile, Anna D. Chalfoun, Annika W. Walters, Jerod A. Merkle
2025, Ecology (106)
Sudden habitat loss associated with environmental disturbance can trigger animals to move from affected to undisturbed areas, where increases in local density may occur. Although pathogen transmission is strongly related to local density, how crowding after habitat loss affects infection dynamics in wild populations remains unclear. Here...
The acoustic-Doppler current profiler (ADCP): A comprehensive tool for river-reach hydromorphodynamics
Gábor Fleit, Marian Muste, Sándor Baranya, Dongsu Kim, Amanda Whaling, Tate McAlpin, Hojun You
2025, Advances in Water Resources (206)
This paper introduces the use of acoustic Doppler current profiler (ADCP) measurements as input for the Acoustic Mapping Velocimetry (AMV) method, a technique for characterizing the dynamics of riverine bedforms. The performance of this new approach, ADCP-AMV, is compared with input from a multibeam echosounder through a...
Potential thiamine deficiency of phytoplankton across a productivity gradient and seasons in Ohio lakes
Freya Elizabeth Rowland, Michael J. Vanni, Nicole M. Hayes, Clifford E. Kraft
2025, Freshwater Biology (70)
Although nitrogen and phosphorus deficiency of algal blooms have been the focus of substantial attention, organic nutrients can limit algal growth in aquatic systems. Growing evidence indicates thiamine (vitamin B1) can influence the community of primary producers in marine systems, but comparatively little is known about the effect of...
Depth of magma crystallization and fluid exsolution beneath the porphyry-skarn Cu deposits at Santa Rita and Hanover-Fierro, New Mexico, USA
Andreas Audétat, Jia Chang, Sean Patrick Gaynor
2025, Economic Geology (120) 1679-1699
The depth level at which porphyry Cu–forming magmas fractionated and exsolved mineralizing fluids is actively debated. In the classic model, extensive magma fractionation occurs in large, upper crustal magma chambers, and concomitant fluid exsolution leads to forceful expulsion of residual magmas in the form of porphyry dikes, stocks, and breccia...
Temporal changes in nutrient concentrations in the Lower Grand River and selected drainage basins, Missouri and Iowa, during the Mississippi River Basin Healthy Watersheds Initiative (2010–23)
Brock J.W. Kamrath, Courtney N. Lauderback, Jennifer C. Murphy
2025, Scientific Investigations Report 2025-5099
This report describes a cooperative study by the U.S. Geological Survey and Missouri Department of Natural Resources that evaluated temporal changes in total nitrogen (TN) and total phosphorus (TP) concentrations in the Lower Grand River hydrologic unit. The study focused on trends since 2010, when the basin was designated as...
An evaluation of the effects of different deicing salt application rates on three watersheds in Essex County, New York
Kristina Gutchess, Natasha Scavotto, Amanda Dondero, Joshua Woda, Neil Terry, Kirk Smith, John Williams
2025, Scientific Investigations Report 2025-5062
The U.S. Geological Survey, in cooperation with the New York State Department of Transportation, evaluated the effects of different deicing salt application rates on surface water, groundwater, and highway runoff quality near State highways in northern New York. Three reaches of State highways were tested with different deicing treatments between...
Evaluating the central–marginal hypothesis: Introgression and genetic variation at the trailing edge of Quercus bicolor
Jesse B. Parker, Sean Hoban, Laura Thompson, Scott E. Schlarbaum
2025, Molecular Ecology (34)
The central–marginal hypothesis (CMH) predicts reduced genetic diversity and increased differentiation in range-edge populations due to ecological marginality and limited gene flow. Deviations from this pattern, however, can result from historical demographic processes, variation in reproductive strategies or interspecific hybridization. The genus Quercus, known for hybridization and long-distance pollination, offers an...
Spatial occupancy patterns of the endangered northern long‐eared bat in New England
Jesse L De La Cruz, Sabrina M. Deeley, Elizabeth Ann Hunter, W. Mark Ford
2025, Diversity and Distributions (31)
AimWhite-nose syndrome has caused severe declines in eastern North American cave bats, leading to the federal listing of the northern long-eared bat (Myotis septentrionalis) as endangered in the United States and Canada. This has heightened the importance of long-term monitoring to inform species status assessments. We employed a combination of...
Detection of viral, bacterial, and protozoan pathogens and microbial source tracking markers in paired large- and small-volume water samples
Joe Heffron, Joel P. Stokdyk, Aaron D. Firnstahl, Rachel M. Cook, Claire E. Hruby, Mark A. Borchardt
2025, ES&T Water
When sampling for waterborne microbes, researchers may need to diverge from recommended sample volumes due to logistical constraints, novel targets, or challenging matrices, with little guidance about the potential impact on results. In field studies, we measured bacteria, viruses, and protozoa (15 quantitative polymerase chain reaction assays)...
Estimating flood discharges at selected annual exceedance probabilities for unregulated, rural streams in Vermont, 2023
Scott A. Olson
2025, Scientific Investigations Report 2025-5088
This report provides estimates of flood discharge at selected annual exceedance probabilities (AEPs) for streamgages in and adjacent to Vermont and equations for estimating flood discharges at AEPs of 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent (recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, and 500-years, respectively)...
Late Quaternary pollen record from southwest Seward Peninsula, western Alaska, and the vegetation history of central Beringia
Thomas A. Ager
2025, Arctic, Antarctic, and Alpine Research (57)
Pollen analysis of samples from a coastal exposure near Teller, southwestern Seward Peninsula, Alaska, provides a record of vegetation and climate spanning the Last Glacial Maximum (LGM) through the Holocene. The site is near the center of the former Bering Land Bridge (BLB). The oldest pollen-bearing sediment...
A monitoring framework to assess forest bird population response to landscape scale mosquito suppression using the Incompatible Insect Technique
Seth Judge, Christopher C Warren, Amanda K Navine, Richard J. Camp, Lisa H. Crampton, Hanna L Mounce, John Vetter, Lauren K. Smith, Patrick J. Hart, Mona Renee Bellinger, Katherine Maria McClure
2025, Hawaii Cooperative Studies Unit Technical Report HCSU-119
The Birds, Not Mosquitoes Monitoring and Support Science Working Group detailed methods for monitoring the population response of Hawaiian forest birds during implementation of the Incompatible Insect Technique (IIT) on the islands of Maui and Kauaʻi. The group prioritized methods for measuring the influence of mosquito suppression on populations within...
Groundwater structures fish growth and production across a riverscape
Jeffrey R. Baldock, Robert Al-Chokhachy, Annika W. Walters
2025, Freshwater Biology (70)
Landscapes are composed of habitat patches and conditions that vary across space and time. While habitat variability and complexity can support important ecological processes and ecosystem services, the dynamic nature of habitats can also constrain organismal growth and production as optimal conditions are fleeting. In riverine ecosystems, groundwater discharge...
When do single-species occupancy models outperform multispecies models?
Gavin G. Cotterill, Douglas A. Keinath, Tabitha A. Graves
2025, Ecology and Evolution (15)
Occupancy models have become increasingly popular for species monitoring and assessment, in part, because detection/non-detection data are readily obtained using a variety of methods. Multispecies occupancy models (MSOMs) can yield more accurate parameter estimates than single-species models (SSOMs) with less data through their hierarchical structure, making MSOMs an attractive option...
Topographic, climatic, and age controls on the reworking of volcanic debris avalanche deposits
Kristin Sweeney, Jon J. Major
2025, Bulletin of Volcanology (87)
Volcanic debris avalanches have deposited as much as 1000 km3 of largely unconsolidated material on landscapes and remodeled existing drainage networks. The landscape disturbances created by these events pose severe, cascading downstream sedimentation hazards that can require long-term societal management, as demonstrated by decades of observations and ongoing...
Twenty years (2000-2020) of butterfly monitoring data across the contiguous United States
Erica H Henry, Collin B. Edwards, Vaughn Shirey, Jeffrey S. Pippen, Dave Waetjen, Matthew L. Forister, Elise A. Larsen, Cheryl B. Schultz, James Michielini, Nathan Brockman, Kevin J. Burls, Ryan G. Drum, Martha Gatch, Jeffrey Glassberg, Nancy Hamlett, Shiran V. Hershcovich, Catherine Le, Steve McGaffin, Jen Meilinger, Lisa Richter, Regina Rochefort, Charles Schelz, Arthur M. Shapiro, Katheryn Sullivan, Douglas J. Taron, Wayne E. Thogmartin, Anna Walker, Anita Westphal, Jerome Wiedmann, Irmgard U. Wilcockson, Jennifer Zaspel, Leslie Ries
2025, Scientific Data (12)
We present the most comprehensive, integrated, butterfly monitoring dataset ever assembled for the United States. It contains over 1.2 million count records, from 65,000 surveys, representing over 12.6 million individual butterflies. To compile this dataset, we integrated data and harmonized taxonomy across 19 butterfly monitoring programs in...
The rise of U.S. photovoltaics: An exploration of land use density trends in large-scale solar facility attributes, 2012-2021
K. Sydny Fujita, Ben Hoen, Dana Robson, Joesph Rand, Zachary H. Ancona, James Diffendorfer, Louisa Kramer, Christopher Garrity, Jianyu Gu, Jordan Macknick
2025, International Journal of Photoenergy (2025)
An energy transition is underway in the United States; renewable energy generation is now on par with coal and nuclear generation. The number of large-scale solar photovoltaic facilities increased approximately tenfold between 2012 and 2021, with an associated 25-fold increase in cumulative installed capacity. With ambitious decarbonization and renewable energy...
Drowned river mouth lakes are winter foraging habitats for the expanding Lake Michigan cisco Coregonus artedi population
Ralph W. Tingley III, Darryl W. Hondorp, Benjamin A. Turschak, Steven A. Pothoven, Amanda Susanne Ackiss, Jory Jonas, William W. Fetzer, Benjamin Scott Leonhardt, Andrew Edgar Honsey, Jeff Elliott, Lindsie Ann Egedy, Cory Brant, Lynn Benes, Kendra Kozlauskos, Renee Renauer-Bova, Ann J. Ropp
2025, Journal of Great Lakes Research
Characterizing fish movements is required for understanding habitat use, energy flow, and trophic structure and can inform fisheries management. Drowned river mouth (DRM) lakes are productive inland habitats in the Laurentian Great Lakes basin used by migratory fishes. Despite recognition of their ecological connections to the Great Lakes, the value...
Assessment of undiscovered oil and gas resources in the Santa Maria Basin Province, California, 2024
Christopher J. Schenk, Marilyn E. Tennyson, 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
2025, Fact Sheet 2025-3052
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional resources of 67 million barrels of oil and 56 billion cubic feet of gas in the Santa Maria Basin Province of California. ...
Divergent responses of seed banks and aboveground vegetation to drought and deluge in grasslands across an elevational gradient
Jennifer R. Gremer, Margaret M. Moore, Daniel C. Laughlin, Seth M. Munson
2025, Oecologia (207)
Increased variability in precipitation associated with climate change creates extreme conditions of drought and deluge that can have profound effects on the abundance and composition of plant communities. Responses to these extremes likely vary across climatic gradients and depend on local plant community composition, which includes the emergent, aboveground vegetation...
Simulation of the impacts of spring fiversions on streamflow in the Strawberry Creek watershed, San Bernardino County, California, using an integrated hydrological model
Derek W. Ryter, Joseph A. Hevesi, Linda R. Woolfenden
2025, Preprint
The Strawberry Creek watershed, situated in the San Bernardino Mountains of southern California, features a group of natural springs known as Arrowhead Springs that have been augmented with diversions in the form of sub-horizontal borings and tunnels. Understanding the impact of these structures on streamflow through groundwater capture is crucial...
Long‐period ground motions from dynamic rupture simulations of large earthquakes on the creeping Hayward–Calaveras–Rodgers Creek fault system
Ruth A. Harris, Michael Barall, Grace Alexandra Parker, Evan Tyler Hirakawa
2025, Seismological Research Letters
he Hayward, Calaveras, and Rodgers Creek faults in the San Francisco Bay region of California have a high probability of producing a large earthquake in the next decades. Although these faults creep, the creep is insufficient to keep up with their relatively rapid slip rates on their deepest sections, so...
Observations of tear-drinking by lepidopterans on moose (Alces alces americana) in northeastern North America
Laurence A. Clarfeld, Katherina D. Gieder, Therese M. Donovan
2025, Ecosphere (16)
Lepidoptera have long been known to feed on the tears of vertebrates as a presumed source of minerals or nutrients. While this unusual behavior has been observed in a variety of species, only a single previous record has been documented outside of the tropics. Here, we present the...
Modeling the influence of upper and lower shoreface dynamics on barrier island evolution
Rose Elizabeth Palermo, Jennifer L. Miselis, Daniel J. Ciarletta, Emily A Wei
2025, JGR Earth Surface (130)
Barrier island resilience to climate impacts depends on sediment redistribution between the subaqueous shoreface and subaerial barrier during sea-level rise and storms. However, autogenic interactions between the upper and lower shoreface and their influence on the subaerial barrier are poorly characterized. Here, we explore the influences of various shoreface components...
