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...
Discovery and genomic characterization of a novel hepadnavirus from asymptomatic anadromous alewife (Alosa pseudoharengus)
Clayton D. Raines, Jan Lovy, Nicolas B.D. Phelps, Sunil Mor, Terry Ng, Luke R. Iwanowicz
2024, Viruses (16)
The alewife (Alosa pseudoharengus) is an anadromous herring that inhabits waters of northeastern North America. This prey species is a critical forage for piscivorous birds, mammals, and fishes in estuarine and oceanic ecosystems. During a discovery project tailored to identify potentially emerging pathogens of this species, we obtained the...
Evaluating the effectiveness of joint species distribution modeling for fresh water fish communities within large watersheds
Paul McLaughlin, Kevin Krause, Kelly O. Maloney, Taylor Woods, Tyler Wagner
2024, Canadian Journal of Fisheries and Aquatic Sciences (81) 1248-1263
Accurately predicting species’ distributions is critical for the management and conservation of fish and wildlife populations. Joint Species Distribution Models (JSDMs) account for dependencies between species often ignored by traditional species distribution models. We evaluated how a JSDM approach could improve predictive strength for stream fish communities within large watersheds...
Records of fleas (Siphonaptera) from Delaware
A.C Kennedy, W.S. Winter, A.L. Gardner, Neal Woodman, S.A. Shifflett, S. Redus, J.R. Newcomer, R. P. Eckerlin
2024, Journal of Medical Entomology (61) 959-964
We present an annotated checklist of fleas (Siphonaptera) known to occur in the state of Delaware based on an examination of Siphonaptera collections at the University of Delaware and the Carnegie Museum of Natural History, as well as new specimens of fleas we collected from wildlife, other hosts, and tick...
On the survival and habitat use of hatchery-reared cisco (Coregonus artedi) in Lake Erie
Richard Kraus, James Markham, Jason Robinson, Thomas MacDougall, Matthew Faust, Joseph Schmitt, Christopher Vandergoot, James E. McKenna Jr., Dimitri Gorsky
2024, Journal of Great Lakes Research (50)
Cisco (Coregonus artedi) have been extirpated from Lake Erie in North America since the 1960s, but they once supported one of the largest Laurentian Great Lakes fisheries. Numerous potential impediments to rehabilitation have been identified, including summer habitat refugia and predation. We used acoustic telemetry to investigate the thermal habitat use and survival of hatchery-reared...
Atlas of microscopic images of biochar using reflected light microscopy in biochar characterization
Agnieszka Drobniak, Maria Mastalerz, Will Knauth, Omid Adarkani, Telma Ataide dos Santos, Valdeci Caio de Faria, Tara Congo, Paul C. Hackley, Javin J. Hatcherian, James C. Hower, Henrik I. Petersen, Julito Reyes, Hamed Sanei
2024, Indiana Journal of Earth Sciences (6)
Derived through the thermochemical conversion of biomass, biochar is a carbon-rich substance recognized for its significance in environmental applications and sustainable agriculture. As interest in its utilization continues to rise, it becomes crucial to comprehend how the source material and pyrolysis parameters influence the properties of biochar and, consequently, to...
Site response in the Walnut Creek–Concord region of the San Francisco Bay, California: Ground motion amplification in a fault-bounded basin
Stephen H. Hartzell, Alena L. Leeds, Leonardo Ramirez-Guzman, Victoria Langenheim, Robert G. Schmitt
2024, Bulletin of the Seismological Society of America (114) 2668-2686
Thirty‐seven portable accelerometers were deployed in the eastern San Francisco Bay communities of Walnut Creek and Concord to study site response in a fault‐bounded, urban, sedimentary basin. Local earthquakes were recorded for a period of two years from 2017 to 2019 resulting in 101 well‐recorded events. Site response is estimated...
