Reaction kinetics and accelerant effects of sulfides in early mature hydrocarbon generation using hydrous pyrolysis
Tushar Adsul, Paul C. Hackley, Javin J. Hatcherian, Ryan J. McAleer, Carlin J. Green, Alan K. Burnham, Santanu Ghosh, Josef P. Werne, Atul K. Varma
2025, Journal of Analytical and Applied Pyrolysis (192)
Hydrocarbon generation in organic-rich sediments is influenced by the molecular organic composition and relative abundance of associated minerals. Certain mineral-derived elements act as catalysts and reaction intermediaries, facilitating early-stage hydrocarbon formation in potential source rocks. This study investigated the role of sulfur contributed from pyrite as an accelerant in thermal...
Climate and land use drivers of freshwater fish biodiversity in the northeastern United States
Jennifer B. Rogers, Graziella Vittoria DiRenzo, Rebecca M. Quiñones, Todd Richards, Allison H. Roy
2025, Biological Conservation (310)
Freshwater habitats can sustain high biodiversity, but habitat degradation, species invasion, and overexploitation have imperiled freshwater species. The multiple threats to freshwater habitats and changing stream characteristics due to climate change make it challenging to identify the drivers of fish vulnerability, especially given that the importance of drivers may vary...
The conundrum of taxonomic uniformitarianism in planktic foraminifera
Harry J. Dowsett, Marci M. Robinson, Kevin M. Foley, Whittney Spivey
2025, Palaeontology (68)
Planktic foraminiferal species distributions in the modern ocean track environmental features like sea surface temperature (SST). Species shift their distributions as the marine environment changes, providing an analogue for past behaviour. Stationarity of species' ecological tolerances is therefore a first-order assumption of all palaeoenvironmental reconstructions based upon modern analogue methods....
Real-time oil spill concentration assessment through fluorescence imaging and deep learning
Biplab Poudel, Jiacheng Xie, Congyu Guo, Olivia Watt, Erin L. Pulster, Rishi J. Patel, Jeffery A. Steevens, Dong Xu
2025, Journal of Hazardous Materials (496)
Oil spills may pose severe ecological and socioeconomic threats, necessitating rapid and accurate environmental assessment. Traditional assessment methods used to determine the extent of a spill including gas chromatography-mass spectrometry, satellite imaging, and visual surveys, are often time-consuming, expensive, and limited by weather conditions or sampling constraints. Furthermore, these methods...
A spatial analysis of the groundwater emergence flood hazard in Long Island, New York and near coastal areas surrounding Long Island Sound in New York, Connecticut, and Rhode Island
Kristina Kirkyla Masterson, Robert J. Welk, Janet R. Barclay, Kalle Jahn, Liv M. Herdman
2025, Preprint
Long Island, New York and near coastal areas surrounding Long Island Sound are densely populated and, like other coastal areas, are susceptible to flooding from several potential sources, including stormwater from precipitation events, tidal flooding and storm surge, and groundwater inundation or groundwater emergence flooding. The latter refers to the...
Benchmarking shoreline prediction models over multi-decadal timescales
Yongjing Mao, Giovanni Coco, Sean Vitousek, Jose A. A. Antolinez, Georgios Azorakos, Masayuki Banno, Clément Bouvier, Karin R. Bryan, Laura Cagigal, Kit Calcraft, Bruno Castelle, Xinyu Chen, Maurizio D'Anna, Lucas de Freitas Pereira, Iñaki de Santiago, Aditya N. Deshmukh, Bixuan Dong, Ahmed Elghandour, Amirmahdi Gohari, Eduardo Gomez-de la Peña, Mitchell D. Harley, Michael Ibrahim, Déborah Idier, Camilo Jaramillo Cardona, Changbin Lim, Ivana Mingo, Julian O'Grady, Daniel Pais, Oxana Repina, Arthur Robinet, Dano Roelvink, Joshua Simmons, Erdinc Sogut, Katie Wilson, Kristen Splinter
2025, Communications Earth & Environment (6)
Robust predictions of shoreline change are critical for sustainable coastal management. Despite advancements in shoreline models, objective benchmarking remains limited. Here we present results from ShoreShop2.0, an international collaborative benchmarking workshop, where 34 groups submitted shoreline change predictions in a blind competition. Subsets of shoreline observations at an undisclosed site...
Spatially explicit demographics of Mojave Desert Tortoises on a demography plot in California, USA
Sarah Doyle, Sean M. Murphy, K. Kristina Drake, Julie Hendrix, Todd C. Esque
2025, Herpetologica (81) 215-223
Obtaining reliable estimates of demographic parameters is critical to effective wildlife conservation and management. Densities of Mojave Desert Tortoises (Gopherus agassizii) were historically derived from capture–mark–recapture surveys on small, often strategically placed demography plots, or demographic study areas, that also provided information on demographic composition and vital rates. After protection...
A review of abrupt permafrost thaw: Definitions, usage, and a proposed conceptual framework
Hailey Webb, Matthias Fuchs, Benjamin W. Abbott, Thomas A. Douglas, Clayton D. Elder, Jessica G. Ernakovich, Eugenie Euskirchen, Mathias Göckede, Guido Grosse, Gustaf Hugelius, Miriam C. Jones, Charles Koven, Heather Kropp, Emma Lathrop, Wenwen Li, Michael M. Loranty, Susan M Natali, David Olefeldt, Christina Schädel, Edward A.G. Schuur, Oliver Sonnentag, Jens Strauss, Anna-Maria Virkkala, Merritt R. Turetsky
2025, Current Climate Change Reports (11)
Purpose of ReviewWe review how ‘abrupt thaw’ has been used in published studies, compare these definitions to abrupt processes in other Earth science disciplines, and provide a definitive framework for how abrupt thaw should be used in the context of permafrost science.Recent FindingsWe address several aspects...
Ice thickness regulates heat flux in permanently ice-covered lakes
Hilary A. Dugan, Maciej K. Obryk, Michael Gooseff, Peter Doran, Amy Chiuchiolo, Jade Lawrence, John Priscu
2025, Limnology and Oceanography (70) 2556-2568
The permanently ice-covered lakes of Taylor Valley, Antarctica, are rare ecosystems where permanent ice cover and year-round vertically stable water columns provide critical redox zones for cold-adapted microorganisms. Using 30 yr of limnological data from the McMurdo Dry Valleys Long-Term Ecological Research program, we assessed the water column heat flux of...
The pre-maria geologic history of the Imbrium basin preserved by remnant highlands massifs
Ben D. Byron, Catherine M. Elder, Lori M. Pigue, Jean-Pierre Williams
2025, JGR Planets (130)
The Imbrium basin is one of the largest and youngest impact basins on the Moon. It has experienced multiple phases of volcanism that filled the basin with basaltic lavas, obscuring most evidence of geologic activity prior to the emplacement of mare basalts. Elevated basin ring massifs, however, can retain some...
Development of regression equations to estimate flow durations, low-flow frequencies, and mean flows at ungaged stream sites in Connecticut using data through water year 2022
Elizabeth A. Ahearn, Gardner C. Bent
2025, Scientific Investigations Report 2025-5027
To aid Federal and State regulatory agencies in the effective management of water resources, the U.S. Geological Survey, in cooperation with the Connecticut Department of Energy and Environmental Protection and the Connecticut Department of Transportation, updated flow statistics for 118 streamgages and developed 47 regression equations to estimate selected flow...
Animal trajectory imputation and uncertainty quantification via deep learning
Kehui Yao, Ian P. McGahan, Jun Zhu, Daniel J. Storm, Daniel P. Walsh
2025, Environmetrics (36)
Imputing missing data in animal trajectories is crucial for understanding animal movements during unobserved periods. However, the traditional methods, such as linear interpolation and the continuous-time correlated random walk model, are often inadequate to capture the complexity of animal movements. Here, we develop a deep learning approach to animal trajectory...
The 3D National Topography Model Call for Action—Part 2: The Next Generation 3D Elevation Program
Vicki Lukas, Larry Sugarbaker, Cindy A. Thatcher, Allyson L. Jason, Jason M. Stoker
2025, Circular 1553
The three-dimensional (3D) National Topography Model initiative to integrate elevation and hydrography data includes the next generation of hydrography data from the 3D Hydrography Program and the next generation of elevation data from the 3D Elevation Program (3DEP). The first-ever collection of light detection and ranging (lidar) data for the...
Genetic structure of an expanding population of Humpback Chub in Grand Canyon
Maria C. Dzul, Robert Massatti, Charles B. Yackulic, Emily Omana-Smith, Kirk Young
2025, North American Journal of Fisheries Management (45) 929-940
ObjectiveHumpback Chub (HBC) Gila cypha in Grand Canyon declined in abundance and distribution over the latter part of the 20th century but have substantially increased in abundance and distribution over the past two decades. Although previous genetic work suggested that HBC in Grand Canyon belong to one genetic...
Inferring Brown-Capped Rosy-Finch demography and breeding distribution trends from long-term wintering data in New Mexico
Whitney A. Watson, Corrie C. Borgman, Steven Cox, Abigail Jean Lawson
2025, Report
The three North American Rosy-Finch species (Brown-capped [Leucosticte australis], Black [L. atrata], and Gray-crowned [L. tephrocotis]) are among the most climate-threatened species in the United States. New Mexico is an important location for investigating the effects of climate change because it is the southernmost location in which Brown-capped Rosy-Finches breed...
Factors affecting the distribution of water-bearing fractures in the bedrock aquifers of West Virginia
Mark D. Kozar, Mitchell A. McAdoo, Samuel H. Austin, Carson A. Wright
2025, Scientific Investigations Report 2025-5044
Bedrock aquifers cover 23,601 square miles within the State of West Virginia and comprise 97.4 percent of the surficial area within the State; the remaining 2.6 percent (621 square miles) consists of alluvial sand-and-gravel and glacial outwash aquifers bordering the State’s major rivers. While West Virginia’s alluvial aquifers have been...
A flexible conservation and connectivity tool to inform stream conservation prioritization
Sarah G. Winikoff, Craig Paukert, Nicholas Sievert, Jane S. Rogosch
2025, Fisheries (50) 527-537
Healthy stream networks rely on diverse fish assemblages and the mobility of fish between habitats to maintain ecosystem structure and function. Anthropogenic structures that impede fish movement (e.g., roads, dams) disrupt life cycles of migratory fishes and isolate fish populations making them more sensitive to environmental stressors. Growing interest in...
Using integrated step-selection analyses to map high-risk electrocution areas for a highly mobile species
Caroline D. Cappello, Kenneth V. Jacobson, James T. Driscoll, Kyle M. McCarty, Javan Mathias Bauder
2025, Journal of Wildlife Management (89)
Knowledge of animal-movement patterns is a crucial component in identifying areas with high potential for human–wildlife conflict and in prioritizing associated management actions. Electrical energy infrastructure is a major source of mortality for animals worldwide, with millions of birds colliding with or being electrocuted by power lines and power-pole infrastructure...
A streamflow permanence classification model for forested streams that explicitly accounts for uncertainty and extrapolation
Jonathan D. Burnett, Kristin L. Jaeger, Sherri L Johnson, Steven M. Wondzell, Jason Dunham, Matthew Irwin Barker, Emily Dawn Heaston, Nathan Chelgren, Michael G. Wing, Brian Staab, Michael E. Brown
2025, Water Resources Research (61)
Accurate mapping of headwater streams and their flow status has important implications for understanding and managing water resources and land uses. However, accurate information is rare, especially in rugged, forested terrain. We developed a streamflow permanence classification model for forested lands in western Oregon using the latest light detection and...
Tailwater residency patterns of Silver Carp at Kentucky Lock and Dam
William R Budnick, Kyle Mosel, Joshua Tompkins, Brent Knights, Jonathan M. Vallazza, Marybeth K. Brey, Andrea K. Fritts
2025, North American Journal of Fisheries Management (45) 603-615
ObjectiveThe management of invasive Silver Carp Hypophthalmichthys molitrix in the Tennessee River basin focuses on removal, and there is interest in extending removal efforts to the tailwater environments of high-head locks and dams along the Tennessee River, such as Kentucky Dam. We used acoustic telemetry data from Silver...
The diel niche of brown bears: Constraints on adaptive capacity in human-modified landscapes
A. Donatelli, D. Ćirović, Mark A. Haroldson, Đuro Huber, J. Kindberg, I. Kojola, J. Kusak, G. Mastrantonio, A. Ordiz, S. Reljić, L. Santini, Frank T. van Manen, P. Ciucci
2025, Ecography (2025)
DDiel activity rhythms, representing the behavioral pattern of the sleep–wake cycle, may be adjusted by wildlife in response to changes in environmental conditions. An increase in nocturnality is typically recognized as an adaptive strategy to segregate from humans and mitigate heat stress. Numerous studies have investigated spatial patterns and habitat...
Multi-sensor proximal remote sensing for cover crop biomass estimation at high and moderate spatial resolutions
Jyoti Jennewein, Brian W. Davis, S. Seehaver-Eagan, J. Nicolette, J. Pittman, W. Dean Hively, Avi Goldsmith, C. Hidalgo, C. Reberg-Horton, S.B. Mirsky
2025, Smart Agricultural Technology (12)
Cover crops play a critical role in providing agroecological services such as improving soil health, reducing erosion and nitrogen loss, and suppressing weeds, which are closely tied to their performance such as accumulated biomass. This study evaluated the Active Canopy Sensor (ACS) -214, an active proximal sensing device equipped with...
Selected special conditions affecting peak streamflow and extreme floods in Alaska through water year 2022
Janet H. Curran
2025, Scientific Investigations Report 2025-5056
The U.S. Geological Survey, in cooperation with the Alaska Department of Transportation and Public Facilities, inventoried selected special conditions for annual peak flows and identified extreme floods at streamgages in Alaska through water year 2022 to facilitate hydrologic analysis. Special conditions identified from U.S. Geological Survey gaging records and basin...
Using community-reported data to understand how boat speed affects marine wildlife: An example with the Florida manatee
Bea Combs-Hintze, J. A. Hostetler, C.S. Calleson, B. Basset, C. Ainsworth, Julien Martin
2025, Ecological Solutions and Evidence (6)
Boat collisions are a known and increasing threat to many marine wildlife populations. The Florida manatee Trichechus manatus latirostris is a key example of a species with high boat-related mortality, whose long-term viability and population are limited by human activities in shared habitats. The goal of this work was to quantify...
Scalable environmental DNA methods reveal strong associations between landscape-scale forest habitat and insect richness
Rodney T. Richardson, Grace Avalos, Cameron J. Garland, Regina Trott, Olivia Hager, Mark J. Hepner, Clayton D. Raines, Karen Goodell
2025, Preprint
While aquatic environmental DNA (eDNA) methods have reached relative maturity, terrestrial eDNA methods are nascent and have yet to reach widespread use. Field-ready applications require eDNA survey methods where samples are easy to collect by inexperienced practitioners, easy to transport between the field and lab,...
