Representation of surface-water flows using Gradient-Related Discharge in an Everglades Network
E. Swain, T. Adams
2024, Scientific Investigations Report 2024-5041
The Everglades Depth Estimation Network interpolates water-level gage data to produce daily water-level elevations for the Everglades in south Florida. These elevations were used to estimate flow vectors (gradients and directions) and volumetric flow rates using the Gradient-Related Discharge in an Everglades Network (GARDEN) application developed by the U.S....
Unified 200 kyr paleohydrologic history of the Southern Great Basin: Death Valley, Searles Valley, Owens Valley and the Devils Hole cave
Tim Lowenstein, Kristian Olson, Brian W. Stewart, David McGee, Justin Stroup, Adam M. Hudson, Kathleen Wendt, Mark Peaple, Sarah Feakins, Ronald Spencer, Tripti Bhattacharya, Steven P. Lundblad, Ronald Litwin
2024, Quaternary Science Reviews (336)
We present a hydroclimate synthesis of the southern Great Basin over the last two glacial-interglacial cycles focused on paleolakes in Death Valley (core DV93-1), Searles Valley (core SLAPP-SRLS17), Owens Valley (core OL92), and the Devils Hole cave. There is...
Using an adaptive modeling framework to identify avian influenza spillover risk at the wild-domestic interface
Diann Prosser, Cody M. Kent, Jeffery D. Sullivan, Kelly A. Patyk, Mary-Jane McCool, Mia K. Torchetti, Kristina Lantz, Jennifer M. Mullinax
2024, Scientific Reports (14)
The wild to domestic bird interface is an important nexus for emergence and transmission of highly pathogenic avian influenza (HPAI) viruses. Although the recent incursion of HPAI H5N1 Clade 2.3.4.4b into North America calls for emergency response and planning given the unprecedented scale, readily available data-driven models are lacking. Here,...
Relatively stable pressure effects and time-increasing thermal contraction control Heber geothermal field deformation
Guoyan Jiang, Andrew J. Barbour, Robert John Skoumal, Kathryn Zerbe Materna, Aren Crandall-Bear
2024, Nature Communications (15)
Due to geological complexities and observational gaps, it is challenging to identify the governing physical processes of geothermal field deformation including ground subsidence and earthquakes. In the west and east regions of the Heber Geothermal Field (HGF), decade-long subsidence was occurring despite injection of heat-depleted brines, along with transient reversals...
Variation in Cooper's Hawk (Accipiter cooperii) eggshell thickness: DDT, measurement methods, and location
G. M. Santolo, Clint W. Boal
2024, Journal of Raptor Research (58) 1-9
We collected Cooper's Hawk (Accipiter cooperii) eggshells from nests in the Tucson, Arizona, USA, area in the 1990s incidental to other activities and compared them to pre-DDT Cooper's Hawk eggshells (119 museum specimens from 14 states, 1894–1939) ranging from 0.284–0.402 mm (x̄= 0.348 mm, SD = 0.0243) and we also...
Evaluation of coal mine drainage and associated precipitates for radium and rare earth element concentrations
Bonnie McDevitt, Charles A. III Cravotta, Ryan J. McAleer, John C Jackson, Aaron M. Jubb, Glenn D. Jolly, Benjamin C. Hedin, Nathaniel R. Warner
2024, Journal of International Coal Geology (289)
Coal mine drainage (CMD) and associated metal-rich precipitates have recently been proposed as unconventional sources of rare earth elements (REEs). However, the potential occurrence of radium (Ra), a known carcinogen, with the REE-bearing phases has not been investigated. We hypothesized...
Bedrock geologic map of the Woodstock quadrangle, Grafton County, New Hampshire
Gregory J. Walsh, William C. Burton, Thomas R. Armstrong, E. Allen Crider, Jr.
2024, Scientific Investigations Map 3522
The bedrock geology of the Woodstock 7.5-minute quadrangle consists of highly deformed metasedimentary rocks of the Central Maine trough, including the Silurian Rangeley and Perry Mountain Formations and the Devonian Littleton Formation. The central, northern, and eastern parts of the quadrangle are underlain by the oldest rocks in the area,...
Field observations and logs from the Rose Hip trench exposure across a north-facing scarp within the Seattle Fault Zone, southern Bainbridge Island, Washington
Stephen J. Angster, Brian L. Sherrod, Wes Johns, Jessie K. Pearl
2024, Scientific Investigations Map 3520
The Seattle Fault Zone is an approximately 70-km-long, east-west-trending zone of south-dipping blind reverse faults within the Puget lowland region in Washington. Because of the proximity, the Seattle Fault Zone poses a significant earthquake hazard to the Puget sound and Seattle metropolitan regions. We present preliminary mapping and trench-site information...
Colored shaded relief bathymetry and acoustic backscatter of Ozette Lake, Washington
Peter Dartnell, Daniel S. Brothers, Andrew C. Ritchie, Brian L. Sherrod, Jackson E. Currie, Peter Dal Ferro, Daniel C. Powers
2024, Scientific Investigations Map 3517
Offshore of the Pacific Northwest of the United States is the Cascadia Subduction Zone, a 1,000-kilometer-long tectonic boundary defined by a large fault, called a megathrust, that extends from the Mendocino Junction off northern California to the Nootka Fracture Zone off Vancouver Island, Canada (U.S. Geological Survey, 2023). The Juan...
Complex patterns of genetic population structure in the mouthbrooding marine catfish, Bagre marinus, in the Gulf of Mexico and U.S. Atlantic
David S. Portnoy, Shannon J. O’Leary, Andrew T. Fields, Christopher M. Hollenbeck, Dean Grubbs, Cheston T. Peterson, Jayne M. Gardiner, Douglas H. Adams, Brett J. Falterman, Marcus Drymon, Jeremy M. Higgs, Erin L. Pulster, Tonya R. Wiley, Steven A. Murawski
2024, Ecology and Evolution (14)
Patterns of genetic variation reflect interactions among microevolutionary forces that vary in strength with changing demography. Here, patterns of variation within and among samples of the mouthbrooding gafftopsail catfish (Bagre marinus, Family Ariidae) captured in the U.S. Atlantic and throughout the Gulf of Mexico were analyzed using genomics to generate...
Origins and nature of large explosive eruptions in the lower East Rift Zone of Kīlauea volcano, Hawaii: Insights from ash characterization and geochemistry
Richard W. Hazlett, Johanne Schmith, Allan Lerner, Drew T. Downs, Erin P. Fitch, Carolyn E. Parcheta, Cheryl A. Gansecki, Sarah A. Spaulding
2024, Journal of Volcanology and Geothermal Research (452)
Several powerful explosive eruptions have taken place in the populated lower East Rift Zone of Kīlauea within the past ∼750 years. These have created distinctive landforms, including a tephra rim enclosing Puʻulena Crater immediately south of the Puna Geothermal Venture power station, a tuff cone at Kapoho Crater near the eastern...
An integrative approach to assessing bridle shiner (Notropis bifrenatus) distribution using environmental DNA and traditional techniques
Lara S. Katz, Stephen M. Jr. Coghlan, Erik J. Blomberg, Michael T. Kinnison, Geneva York, Joseph D. Zydlewski
2024, Canadian Journal of Fisheries and Aquatic Sciences (81) 1217-1237
The bridle shiner (Notropis bifrenatus) is a small cyprinid native to the eastern United States and Canada. Bridle shiner populations have declined across their range, and the species now receives concern status or legal protection in 13 states and two provinces. Bridle shiners were historically found in southern and western...
Intraguild interactions and abiotic conditions mediate occupancy of mammalian carnivores: Co-occurrence of coyotes–fishers–martens
Joshua P. Twining, Jennifer L. Brazeal, Paul G. Jensen, Angela K. Fuller
2024, Oikos (2024)
The widespread eradication of large carnivores and subsequent expansion of top mesopredators has the potential to impact species and community interactions with ecosystem-wide implications. An example of these trophic dynamics is the widespread establishment of coyotes following extirpation of wolves and mountain lions in eastern North America. Here, we examined...
Microtopographic variation as a potential early indicator of ecosystem state change and vulnerability in salt marshes
Alexander J. Smith, Glenn R. Guntenspergen, Joel A. Carr, David Walters, Matt L. Kirwan
2024, Estuaries and Coasts (47) 2120-2134
As global climate change alters the magnitude and rates of environmental stressors, predicting the extent of ecosystem degradation driven by these rapidly changing conditions becomes increasingly urgent. At the landscape scale, disturbances and stressors can increase spatial variability and heterogeneity — indicators that can serve as potential early warnings of...
Post-wildfire curve number estimates for the southern Rocky Mountains in Colorado, USA
Jeremy Giovando, Wyatt Reis, Rose Shillito, Elizabeth Shaloka, Christina Chow, Michael S. Kohn, Natalie Memarsadeghi
2024, Technical Report ERDC-TR-24-12
The curve number method first developed by the US Department of Agriculture Soil Conservation Service (now the Natural Resources Conservation Service) is often used for post-wildfire runoff assessments. These assessments are critical for land and emergency managers making decisions on life and property risks following a wildfire event. Three approaches...
Great Lakes lake trout (Salvelinus namaycush) thiamine monitoring program annual report
Jacques Rinchard, James P. Ludwig, Brian F. Lantry, Brian O’Malley
2024, Report
Thiamine deficiency in lake trout eggs has been identified to induce early life-stage mortality in the Great Lakes in the 1960s through the 1990s and potentially affecting lake trout recruitment. As a results, the U.S. Geological Survey’s Great Lakes Science Center (GLSC), Eastern Ecological Science Center, and Columbia Environmental Research...
Surficial geology and Quaternary fault map of the Las Vegas Valley, Clark County, Nevada
Seth Dee, Alan R. Ramelli, Craig M dePolo, Shannon A. Mahan
2024, Map 193
The Surficial Geology and Quaternary Fault Map of the Las Vegas Valley, Clark County, Nevada is a 1:50,000-scale compilation of published 1:24,000-scale geologic maps integrated with new field and desktop mapping. This geologic map compilation and GIS database are part of a broader study on the Quaternary faults in the Las Vegas...
Identifying the forage base and critical forage taxa for Chesapeake waterbirds
Matthew Hack, Jeffery D. Sullivan, Cody M. Kent, Diann Prosser
2024, Journal of Fish and Wildlife Management (15) 164-174
To effectively maximize the conservation value of management plans intended to capture ecosystem-wide health, it is essential to obtain an understanding of emergent patterns in dietary dynamics spanning many species. Chesapeake Bay, USA, is a critical ecosystem used annually by a diverse assortment of waterbird species, including several of conservation...
Preparing for today's and tomorrow's water-resources challenges in eastern Long Island, New York
Ronald Busciolano, John P. Masterson, Robert F. Breault
2024, Fact Sheet 2024-3020
Freshwater is a vital natural resource. Although New York is a water-rich State, the wise and economical use of water resources is needed to ensure that there is enough water of adequate quality for both human and ecological needs—both for today and for tomorrow. Nowhere in New York is this...
Formation and evolution of the Pacific-North American (San Andreas) plate boundary: Constraints from the crustal architecture of northern California
Kevin P. Furlong, Antonio Villasenor, Harley M. Benz, Kirsty A. McKenzie
2024, Tectonics (43)
The northward migration of the Mendocino triple junction (MTJ) drives a fundamental plate boundary transformation from convergence to translation; producing a series of strike-slip faults, that become the San Andreas plate boundary. We find that the 3-D structure of the Pacific plate lithosphere in the vicinity of the MTJ controls...
Assessment of undiscovered oil and gas resources of the North Chukchi Basin, outer continental shelf of the Chukchi and East Siberian Seas, Arctic Ocean, 2023
David W. Houseknecht, Craig P. Markey, Tracey J. Mercier, Christopher J. Schenk, Christopher D. Connors, Jared T. Gooley, Palma J. Botterell, Rebecca A. Smith, William A. Rouse, Christopher P. Garrity
2024, Fact Sheet 2024-3015
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 1.8 billion barrels of oil and 119.9 trillion cubic feet of gas technically recoverable from undiscovered, conventional accumulations in Cretaceous and Cenozoic strata of the North Chukchi Basin....
Causal inference approaches reveal both positive and negative unintended effects of agricultural and urban management practices on instream biological condition
Sean Cassian Emmons, Taylor Woods, Matthew J. Cashman, Olivia Devereux, Gregory E. Noe, John A. Young, Scott Stranko, Jay V. Kilian, Katherine Hanna, Kelly O. Maloney
2024, Journal of Environmental Management (361)
Agricultural and urban management practices (MPs) are primarily designed and implemented to reduce nutrient and sediment concentrations in streams. However, there is growing interest in determining if MPs produce any unintended positive effects, or co-benefits, to instream biological and habitat...
Viral pathogen detection in U.S. game-farm mallard (Anas platyrhynchos) flags spillover risk to wild birds
Brian P. Bourke, Robert J. Dusek, Koray Ergunay, Yvonne-Marie Linton, Sergei V. Drovetski
2024, Frontiers Earth Science Journal (11)
The threat posed by emerging infectious diseases is a major concern for global public health, animal health and food security, and the role of birds in transmission is increasingly under scrutiny. Each year, millions of mass-reared game-farm birds are released into the wild, presenting a unique and a poorly...
Effects of drought and cloud-water interception on groundwater recharge and wildfire hazard for recent and future climate conditions, Kauaʻi, Oʻahu, Molokaʻi, Maui, and the Island of Hawaiʻi
Alan Mair, Delwyn S. Oki, Heidi L. Kane, Adam G. Johnson, Kolja Rotzoll
2024, Scientific Investigations Report 2023-5141
The Water-budget Accounting for Tropical Regions Model (WATRMod) code was used for Kauaʻi, Oʻahu, Molokaʻi, Maui, and the Island of Hawaiʻi to estimate the spatial distribution of groundwater recharge, soil moisture, evapotranspiration, and climatic water deficit for a set of water-budget scenarios. The scenarios included historical and future drought conditions,...
Genetic analysis of harvest samples reveals population structure in a highly mobile generalist carnivore
Stuart C. Fetherston, Robert Charles Lonsinger, Lora B. Perkins, Chadwick P. Lehman, Jennifer R. Adams, Lisette P. Waits
2024, Ecology and Evolution (14)
Delineating wildlife population boundaries is important for effective population monitoring and management. The bobcat (Lynx rufus) is a highly mobile generalist carnivore that is ecologically and economically important. We sampled 1225 bobcats harvested in South Dakota, USA (2014–2019), of which 878 were retained to assess genetic diversity and infer population...
