Conceptual and numerical groundwater flow model of the Iowa River alluvial aquifer near Tama County, Iowa, 1980 through 2022
Kendall M.F. Goldstein, Kyle W. Davis
2025, Scientific Investigations Report 2025-5086
The Iowa River alluvial aquifer is an important source of water on the Meskwaki Settlement in Tama County, Iowa, which is land owned by the Sac & Fox Tribe of the Mississippi in Iowa (commonly known as the Meskwaki Nation). The U.S. Geological Survey constructed a groundwater flow model, including...
Approximate inland extent of saltwater intrusion at the base of the Biscayne aquifer, Miami-Dade County, Florida, 2022
Jade Ziqiu Zhang, Corinne Renshaw
2025, Scientific Investigations Map 3541
Miami-Dade County is part of a densely populated urban corridor in southeastern Florida. The Biscayne aquifer serves as Miami-Dade County’s primary drinking water source and is characterized by highly permeable karstic limestone and carbonate sand. The aquifer’s coastal location and permeable nature make it susceptible to saltwater intrusion. Monitoring the...
Rice cultivation supports growth and survival of a threatened semi-aquatic reptile
Jonathan P. Rose, Allison M. Nguyen, Anna Jordan, Daniel Antonio Macias, Elliot James Schoenig, Giancarlo Ray Napolitano, Richard Kim, Julia S.M. Ersan, Alexandria M. Fulton, Brian Halstead
2025, Ecological Applications (35)
Integration of agroecosystems and other working landscapes with protected lands and waters is critical to the conservation of Earth's biodiversity. Rice agroecosystems support many species by providing aquatic habitat where natural wetlands have been altered or drained. In regions with long dry seasons, rice fields and associated irrigation canals provide...
Predicting sediment bulk density for San Francisco Estuary
Samantha C. McGill, Jessica R. Lacy
2025, San Francisco Estuary and Watershed Science (23)
Sediment bulk density (ρ-dry) and particle size are two important parameters for predicting sediment bed erosion. ρ-dry, however, is difficult to measure accurately. The units of ρdry have not been consistently reported in the literature, leading to confusion, particularly in the calculation of sediment budgets that typically require integrating mass-based...
Biologging to identify nesting and non-nesting emergences for four species of imperiled sea turtles
Kristen Hart, Connor F. White, Donna J. Shaver, Margaret Lamont, Michael Cherkiss, Andrew G. Crowder, Nicholas M. Whitney
2025, Frontiers in Marine Science (12)
Quantifying sea turtle nesting behavior is essential for recovery planning and evaluating management actions. Traditional monitoring approaches, based on nest counts from beach surveys, can misclassify non-nesting emergences, obscure true fecundity, and underestimate clutch frequency, metrics that directly influence population models and regulatory decisions. Here, we demonstrate...
Designs for cyanobacterial harmful algal bloom monitoring in the Sacramento–San Joaquin Delta, California
Keith Bouma-Gregson, Lisa Lucas, Andrea Cecile Jaegge, Dulcinea Marie Avouris, Emily T. Richardson, Jacob Aaron Zwart, Tamara E. C. Kraus
2025, Preprint
Cyanobacterial harmful algal blooms (CHABs) are a growing concern in freshwater environments. These blooms can lead to degraded water quality, ecosystem disruptions, and public health threats due to the production of potent cyanotoxins. The Sacramento–San Joaquin Delta (California, USA; the Delta) has experienced CHABs since 1999, including CHABs that produce...
Land use and soil characteristics are associated with increased risk of treponeme-associated hoof disease in elk
Steven N. Winter, Glen A. Sargeant, Margaret A. Wild, Erin Clancey, Kathryn P. Huyvaert, Kyle Garrison, Pilar Fernandez
2025, Ecosphere (16)
Environments can shape the occurrence and extent of disease outbreaks in wildlife. We studied the effects of environmental features on the occurrence of treponeme-associated hoof disease (TAHD), an emerging infectious disease of free-ranging elk (Cervus canadensis), in southwestern Washington, USA. During the 2016–2022 harvest seasons, successful elk hunters returned mandatory...
Foundational principles of an applied cultural evolutionary science for natural resource management and conservation
Richard Eugene Waggaman Berl, Jonathan J. Fisk, Lily M. van Eeden, Jonathan Salerno, Álvaro Fernández-Llamazares, Kirsten Leong, Jonathan W. Long, G. Scott Boomer, Christopher K. Williams, Ugo Arbieu, Lisa Lehnen, Adam Landon, Erle C. Ellis, Bas Verschuuren, Lincoln R. Larson, Michael C. Gavin
2025, Philosophical Transactions of the Royal Society B Biological Sciences (380)
Culture, as the filter through which people view the world and a key determinant of human behaviour, is central to the practice of natural resource management and conservation. Conservation is intended to moderate the impacts of human cultural modification of the environment, exists as an endeavour because...
Toward co-designed Earth System Models: Reflecting end-user priorities in local applications from a modeler's perspective
Yifan Cheng, Nicole M. Herman-Mercer, Andrew J. Newman, Keith Musselman, Cleo Woelfle-Hazard, Dylan Blaskey, Cassandra M. Brooks, Tvetene Carlson, Joshua C. Koch, Monica Morrison, Edda A. Mutter, Daniel Sarna-Wojcicki, Peyton Thomas, Jenessa Tlen, Ryan C. Toohey
2025, AGU Advances (6)
Earth System Models (ESM) are crucial for quantifying climate impacts across Earth's interconnected systems and supporting science-based adaptation and mitigation. However, not including end-users, especially decision-makers representing communities vulnerable to climate change, can limit model utility, increase epistemic risks, and lead to information misuse in decision-making. While the...
Ultramafic float rocks at Jezero crater (Mars): Excavation of lower crustal rocks or mantle peridotites by impact cratering?
O. Beyssac, E. Clave, O. Forni, A. Udry, A.C. Pascuzzo, E. Dehouck, P.S.A. Beck, L. Mandon, C. Quantin-Nataf, N. Mangold, G. Lopez-Reyes, C. Royer, O. Gasnault, Travis S.J. Gabriel, L.C. Kah, S. Schroder, J.R. Johnson, T. Bertrand, B. Chide, T. Fouchet, J.I. Simon, F. Montmessin, A. Fau, S. Maurice, R.C. Wiens, A. Cousin
2025, Earth and Planetary Science Letters (675)
Based on observation and data from meteorites and in situ scientific missions, experiments as well as models, the Martian mantle is assumed to share some compositional and mineralogical affinity with the terrestrial mantle. However, there might be subtle differences like the Martian mantle being more ferroan. Yet,...
Simulation of groundwater flow in Wake County, North Carolina, 2000 through 2070
Dominick J. Antolino, Gerard J. Gonthier, Georgina M. Sanchez
2025, Scientific Investigations Report 2025-5087
In 2019, the U.S. Geological Survey and Wake County Environmental Services began a collaborative study to evaluate groundwater resources and long-term groundwater availability in the county’s fractured-rock groundwater system. Wake County, in central North Carolina, is experiencing rapid population growth, associated land development, and changing water use. Hydrogeologic data including...
Muskellunge spawning habitat characteristics and availability in Green Bay, Lake Michigan
Jared E. Krebs, Robert J. Sheffer, Daniel J. Dembkowski, Ryan Eastman, Steven R. Holger, Joshua K. Raabe, Daniel A. Isermann
2025, North American Journal of Fisheries Management
ObjectiveHabitat degradation has been associated with the loss of many self-sustaining Muskellunge Esox masquinongy populations, including those in Green Bay, where stocking has provided an exceptional trophy fishery but restoration goals include establishing self-sustaining populations and there is little evidence of natural recruitment. Our objectives were to determine...
River ice controls permafrost bank erosion across an Arctic delta
J Arcuri, Irina Overeem, Marisa Repasch, R. S. Anderson, S. P. Anderson, Joshua C. Koch, Frank Urban
2025, Earth Surface Processes and Landforms (50)
Bank erosion in Arctic rivers helps shape channel geometry, mobilizes carbon from permafrost and influences sediment delivery to the Arctic Ocean. On Alaska's Arctic coastal plain, rivers begin flowing during snowmelt in late spring while extensive river ice persists in channels, such that hydraulics are altered and water is kept...
Present and future coastal flooding hazard for Long Island, NY and Long Island Sound (NY/CT), USA
Salme Ellen Cook, Liv M. Herdman
2025, Preprint
Coastal flooding and the associated damages due to storms are increasing with sea level rise around the world, with regional variability in the severity of impacts., Researchers and resource managers need to better understand and predict the future shifts in coastal flooding due to these processes to plan for resilient...
Projecting management-relevant change of undeveloped coastal barriers with the Mesoscale Explicit Ecogeomorphic Barrier model (MEEB) v1.0
Ian Robert Reeves, Andrew D. Ashton, Erika E. Lentz, Christopher R. Sherwood, Davina Passeri, Sara Zeigler
2025, Geoscientific Model Development (18) 9319-9348
Models of coastal barrier geomorphic and ecologic change are valuable tools for understanding and predicting when, where, and how barriers evolve and transition between ecogeomorphic states. Few existing models of barrier systems are designed to operate over spatiotemporal scales congruous with effective management practices (i.e., decades/kilometers, referred to herein as...
Estimation of dynamic geologic CO2 storage resources in the Illinois Basin, including effects of brine extraction, anisotropy, and hydrogeologic heterogeneity
Michelle R. Plampin, Steven T. Anderson, Stefan Finsterle, Ashton M. Wiens
2025, Frontiers in Earth Science (13)
Since the vast majority of carbon dioxide (CO2) storage resources in the United States are in deep saline aquifers, optimizing the use of these saline storage resources could be crucial for efficient development of geologic CO2 storage (GCS) resources and basin- or larger-scale deployment of GCS in the country. Maximum CO2 injection...
Quality of groundwater used for domestic supply in the Gilroy-Hollister basin and surrounding areas, California, 2022
Kirsten E. Faulkner, Bryant C. Jurgens
2025, Scientific Investigations Report 2025-5097
More than 2 million Californians rely on groundwater from domestic wells for drinking-water supply. This report summarizes a 2022 California Groundwater Ambient Monitoring and Assessment Priority Basin Project (GAMA-PBP) water-quality survey of 33 domestic and small-system drinking-water supply wells in the Gilroy-Hollister Valley groundwater basin and the surrounding areas, where more...
Pre-eruptive characteristics of “suspect” silicic magmas in Carlin-type Au-forming systems
Celestine N. Mercer, Julie Roberge, Regina Marie Khoury, Albert H. Hofstra
2025, American Mineralogist (110) 1898-1918
World-class Carlin-type Au deposits hosted in sedimentary rock were formed when profuse Eocene silicic magmatism swept across northern Nevada in response to arc migration. Carlin-type Au deposits formed along with porphyry/skarn Cu-Mo-W-Au deposits, epithermal Ag-Au deposits, and distal disseminated Ag-Au deposits. But unlike these other Au-bearing deposits that have clear...
Predicting niche spaces of expanding Evening Bat (Nycticeius humeralis) populations following white-nose syndrome establishment
Sally B. Martinez, Laura D’Acunto, Bradford J. Westrich, Scott M. Bergeson, Patrick A. Zollner
2025, Journal of Mammalogy
Observations of the Evening Bat (Nycticeius humeralis), a species historically distributed abundantly throughout the southeastern United States, are speculated to have increased in the Midwest. One hypothesis for this expansion in geographic distribution is that local extirpations of other bat species resulted in the expanded realized niche spaces for evening...
Leveraging an observed-data likelihood improves the use of machine learning labels in a Bayesian hierarchical model for bioacoustic data
Jacob Oram, Katharine M. Banner, Christian Stratton, Andrew Hoegh, Kathryn Irvine
2025, Annals of Applied Statistics (19) 2957-2980
Classification of massive datasets by machine learning (ML) algorithms is promising for many scientific domains, especially wildlife monitoring programs that rely on passive acoustic surveys for detecting species. However, treating ML-predicted class labels (e.g., species identity) as truth biases inferences of focal parameters within common modeling frameworks. One solution is...
Range-wide population trend analysis for greater sage-grouse (Centrocercus urophasianus)—Updated 1960–2024
Brian G. Prochazka, Peter S. Coates, Cameron L. Aldridge, Michael S. O’Donnell, David R. Edmunds, Adrian P. Monroe, Steve E. Hanser, Lief A. Wiechman, Michael P. Chenaille
2025, Data Report 1217
Greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse) are at the center of State and national land-use policies largely because of their unique life-history traits as an ecological indicator for the health of sagebrush ecosystems. This updated population trend analysis provides State and Federal land and wildlife managers with the best available...
A framework for analyzing wild turkey summer sighting data.
Duane R. Diefenbach, Frances E. Buderman, Mary Jo Casalena, Michael Dye, Robert Gates, Laura Christine Gigliotti, C. Robert Long, Katherine Martin, Michael Muthersbaugh, Michael L. Peters, James Sloan, Joshua Stiller, Mark Wiley
2025, Wildlife Society Bulletin (49)
Wildlife agencies collect data on productivity (e.g., proportion of hens with poults and number of poults per hen) of wild turkey (Meleagris gallopavo) to monitor population status and trends. However, sampling protocols to collect productivity data rely on opportunistic observations reported by wildlife agency personnel and the...
Disentangling geomorphic equifinality in sediment and hydrologic connectivity through the analyses of landscape drivers of hysteresis
Jong Cho, J. William Lund, Grady Ball, Jeb E. Brown, Allen C. Gellis, Laura N. Gurley, Scott Douglas Hamshaw, Jeffrey Stephen Kwang, Andrew Roy Laws, Gregory E. Noe, Gretchen P. Oelsner, Francis Parchaso, Cara L. Peterman-Phipps, Katherine Skalak, Nicholas Alan Sutfin
2025, Earth Surface Processes and Landforms (50)
Sources, transport mechanisms and pathways of fine sediment in river systems are dependent on a multitude of climatic, geomorphic and anthropogenic factors, resulting in geomorphic equifinality, in which it is difficult to parse how different landscape processes affect sediment transport across different spatiotemporal scales. The objectives of this study are...
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
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...
