SFRmaker and Linesink-Maker: Rapid construction of streamflow routing networks from hydrography data
Andrew T. Leaf, Michael N. Fienen, Howard W. Reeves
2021, Groundwater (59) 761-771
Groundwater models have evolved to encompass more aspects of the water cycle, but the incorporation of realistic boundary conditions representing surface water remains time-consuming and error-prone. We present two Python packages that robustly automate this process using readily available hydrography data as the primary input. SFRmaker...
Progress towards integrating an understanding of chemical ecology into sea lamprey control
Skye D. Fissette, Tyler John Buchinger, C. Michael Wagner, Nicholas S. Johnson, Anne M Scott, Weiming Li
2021, Journal of Great Lakes Research (47) S660-S672
The sea lamprey, Petromyzon marinus, is a destructive invader in the Laurentian Great Lakes that relies on several complex chemical cues to complete their life cycle. The central roles of chemical cues in sea lamprey reproduction provide opportunities to leverage knowledge of sea lamprey chemical ecology when developing alternative or supplemental strategies for...
Coflowering invasive plants and a congener have neutral effects on fitness components of a rare endemic plant
Diane L. Larson, Jennifer L Larson, Amy Symstad, Deborah A. Buhl, Zachary M. Portman
2021, Ecology and Evolution (11) 4750-4762
Network analyses rarely include fitness components, such as germination, to tie invasive plants to population-level effects on the natives. We address this limitation in a previously studied network of flower visitors around a suite of native and invasive plants that includes an endemic plant at Badlands...
Post-fire management targeting invasive annual grasses may have inadvertently released the exotic perennial forb Chondrilla juncea and suppressed its biocontrol agent
Brynne E. Lazarus, Matthew J. Germino
2021, Biological Invasions (23) 1915-1932
Top-down and bottom-up factors affecting invasive populations are rarely considered simultaneously, yet their interactive responses to disturbances and management interventions can be essential to understanding invasion patterns. We evaluated post-fire responses of the exotic perennial forb Chondrilla juncea (rush skeletonweed) and its biocontrol agents to landscape factors and a post-fire combined herbicide...
Simulation of groundwater flow in the aquifer system of the Anacostia River and surrounding watersheds, Washington, D.C., Maryland, and Virginia
Jeff P. Raffensperger, Lois M. Voronin, Cheryl A. Dieter
2021, Scientific Investigations Report 2013-5225
The U.S. Geological Survey, in cooperation with the District Department of Energy & Environment, Water Quality Division, is investigating the hydrogeology of the tidal Anacostia River watershed within Washington, D.C., with the goal of improving understanding of the groundwater-flow system and the interaction of groundwater and surface water in the...
Black abalone surveys at Naval Base Ventura County, San Nicolas Island, California—2020, annual report
Michael C. Kenner
2021, Open-File Report 2021-1023
The U.S. Geological Survey monitors a suite of intertidal black abalone sites at San Nicolas Island, California, in cooperation with the U.S. Navy, which owns the island. The nine rocky intertidal sites were established in 1980 to study the potential impact of translocated sea otters on the intertidal black abalone...
Sea-level rise enhances carbon accumulation in United States tidal wetlands
Ellen Herbert, Lisamarie Windham-Myers, Matthew L. Kirwan
2021, One Earth (4) 425-433
Coastal wetlands accumulate soil carbon more efficiently than terrestrial systems, but sea level rise potentially threatens the persistence of this prominent carbon sink. Here, we combine a published dataset of 372 soil carbon accumulation rates from across the United States with new analysis of 131 sites in coastal Louisiana and...
Substitution of inland fisheries with aquaculture and chicken undermines human nutrition in the Peruvian Amazon
Sebastian A. Heilpern, Kathryn Fiorella, Carlos Canas, Alexander S. Flecker, Luis Moya, Shahid Naeem, Suresh Sethi, Maria Uriarte, Ruth DeFries
2021, Nature Food (2) 192-197
With declining capture fisheries production, maintaining nutrient supplies largely hinges on substituting wild fish with economically comparable farmed animals. Although such transitions are increasingly commonplace across global inland and coastal communities, their nutritional consequences are unknown. Here, using human demographic and health information, and fish nutrient composition data from the...
Water temperature and availability shape the spatial ecology of a hot springs endemic toad
Brian J. Halstead, Patrick M. Kleeman, Jonathan P. Rose, Kristen J Fouts
2021, Herpetologica (77) 24-36
Desert amphibians are limited to exploiting ephemeral resources and aestivating or to inhabiting scarce refuges of permanent water, such as springs. Understanding how amphibians use these resources is essential for their conservation. Dixie Valley Toads (Anaxyrus williamsi) are precinctive to a small system of...
A multidisciplinary investigation into the eruptive style, processes, and duration of a Cascades back-arc tholeiitic basalt: A case study of the Brushy Butte flow field, northern California, United States
Drew T. Downs, Duane E. Champion, Michael A. Clynne, L.J. Patrick Muffler
2021, Frontiers in Earth Science (9)
The Cascades back-arc in northern California is dominated by monogenetic tholeiitic basalts that erupted throughout the Pleistocene. Elucidating their eruptive history and processes is important for understanding potential future eruptions here. We focus on the well-exposed monogenetic volcano that emplaced the Brushy Butte flow field, which constructed a ∼150 m tall...
The 2018 update of the US National Seismic Hazard Model: Ground motion models in the central and eastern US
Sanaz Rezaeian, Peter M. Powers, Allison Shumway, Mark D. Petersen, Nico Luco, Arthur D. Frankel, Morgan P. Moschetti, Eric M. Thompson, Daniel McNamara
2021, Earthquake Spectra (37) 1354-1390
The United States Geological Survey (USGS) National Seismic Hazard Model (NSHM) is the scientific foundation of seismic design regulations in the United States and is regularly updated to consider the best available science and data. The 2018 update of the conterminous US NSHM includes major changes to the underlying ground...
The Robinson Forest environmental monitoring network: Long‐term evaluation of streamflow and precipitation quantity and stream‐water and bulk deposition chemistry in eastern Kentucky watersheds
Kenton Sena, Chris D. Barton, Tanja N. Williamson
2021, Hydrological Processes (35)
The University of Kentucky (U KY) has owned Robinson Forest (37.460723° N, 83.158598° W) since 1923, conducting experiments crucial to understanding the environmental effects of land management in the region. Part of the management of Robinson Forest has been collection of environmental data, including precipitation quantity, bulk‐deposition chemistry, streamflow, stream‐water...
Dating fault damage along the eastern Denali fault zone with hematite (U-Th)/He thermochronometry
Robert G. McDermott, Alexis K. Ault, Jonathan Saul Caine
2021, Earth and Planetary Science Letters (563)
Unraveling complex slip histories in fault damage zones to understand relations among deformation, hydrothermal alteration, and surface uplift remains a challenge. The dextral eastern Denali fault zone (EDFZ; southwest Yukon, Canada) bounds the Kluane Ranges and hosts a variety of fault-related rocks, including hematite fault surfaces, which have been exhumed...
Organic geochemistry and petrology of Devonian shale in eastern Ohio: Implications for petroleum systems assessment
Paul C. Hackley, Robert T. Ryder
2021, American Association of Petroleum Geologists Bulletin (105) 543-573
Recent production of light sweet oil has prompted reevaluation of Devonian petroleum systems in the central Appalachian Basin. Upper Devonian Ohio Shale (lower Huron Member) and Middle Devonian Marcellus Shale organic-rich source rocks from eastern Ohio and nearby areas were examined using organic petrography and geochemical analysis of solvent extracts...
Organic petrology and geochemistry of the Sunbury and Ohio Shales in eastern Kentucky and southeastern Ohio
Cortland F. Eble, Paul C. Hackley, Thomas M. Parris, Stephen F. Greb
2021, AAPG Bulletin (105) 493-515
As part of a study to determine the origin of oil and gas in the Berea Sandstone in northeastern Kentucky and southeastern Ohio, 158 samples of organic-rich shale from the Upper Devonian Olentangy and Ohio Shales and the Lower Mississippian Sunbury Shale, collectively referred to as the “black shale,”...
Before the first meal: The elusive pre-feeding juvenile stage of the sea lamprey
Thomas M. Evans, C. Michael Wagner, Scott M. Miehls, Nicholas S. Johnson, Taylor Haas, Erin Dunlop, Richard G. Manzon
2021, Journal of Great Lakes Research (47) S580-S589
Although sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes have been studied intensively for more than 70 years, many questions remain about their complex life cycle. One of the least understood portions is the post-metamorphic stage (hereafter pre-feeding juvenile, PFJ) that...
Oil–source correlation studies in the shallow Berea Sandstone petroleum system, eastern Kentucky
Paul C. Hackley, T.M. Parris, C. F. Eble, S. F. Greb, D.C. Harris
2021, American Association of Petroleum Geologists Bulletin (105) 517-542
Shallow production of sweet high-gravity oil from the Upper Devonian Berea Sandstone in northeastern Kentucky has caused the region to become the leading oil producer in the state. Potential nearby source rocks, namely, the overlying Mississippian Sunbury Shale and underlying Ohio Shale, are immature for commercial oil generation according to...
Public and private tapwater: Comparative analysis of contaminant exposure and potential risk, Cape Cod, Massachusetts, USA
Paul M. Bradley, Denis R. LeBlanc, Kristin M. Romanok, Kelly Smalling, Michael J. Focazio, Mary C. Cardon, Jimmy Clark, Justin M. Conley, Nicola Evans, Carrie E. Givens, James L. Gray, L. Earl Gray, Phillip C. Hartig, Christopher P. Higgins, Michelle L. Hladik, Luke R. Iwanowicz, Keith A. Loftin, R. Blaine McCleskey, Carrie A. McDonough, Elizabeth Medlock-Kakaley, Christopher P. Weis, Vickie S. Wilson
2021, Environmental International (152)
BackgroundHumans are primary drivers of environmental contamination worldwide, including in drinking-water resources. In the United States (US), federal and state agencies regulate and monitor public-supply drinking water while private-supply monitoring is rare; the current lack of directly...
Per- and polyfluoroalkyl substances (PFAS) in New Hampshire soils and biosolids
Andrea K. Tokranov, Kate Emma A. Schlosser, Jeffrey M. Marts, Anthony F. Drouin, Leah M. Santangelo, Sydney M. Welch
2021, General Information Product 208
The U.S. Geological Survey, in cooperation with the New Hampshire Department of Environmental Services, is undertaking a study on per- and polyfluoroalkyl substances (PFAS) in soils and biosolids. The study will characterize PFAS concentrations in shallow soil and selected biosolids throughout the State of New Hampshire, conduct laboratory experiments to...
Leveraging risk communication science across US federal agencies
William M. P. Klein, Alycia Boutte, Heather Brake, Madeline Beal, Katherine Lyon-Daniel, Emily Eisenhauer, Monica Grasso, Bryan Hubbell, Karen Jenni, Christopher Lauer, Arthur Lupia, Christine Prue, Paula Rausch, Carl D. Shapiro, Michael D. Smith, William Riley
2021, Nature Human Behavior (5) 411-413
Many US federal agencies apply principles from risk communication science across a wide variety of hazards. In so doing, they identify key research and practice gaps that, if addressed, could help better serve the nation’s communities and greatly enhance practice, research, and policy development....
Whole‐genome resequencing reveals persistence of forest‐associated mammals in Late Pleistocene refugia along North America’s North Pacific Coast
Jocelyn P. Colella, Tianying Lan, Sandra L. Talbot, Charlotte Lindqvist, Joseph A. Cook
2021, Journal of Biogeography (48) 1153-1169
AimNumerous glacial refugia have been hypothesized along North America's North Pacific Coast that may have increased divergence of refugial taxa, leading to elevated endemism and subsequently clustered hybrid zones following deglaciation. The locations and community composition of these ice‐free areas remains controversial, but whole‐genome sequences now enable...
A numerical study of wave-driven mean flows and setup dynamics at a coral reef-lagoon system
Dirk P. Rijnsdorp, Mark L. Buckley, Renan da Silva, Mike Cuttler, Jeff Hansen, Ryan Lowe, Rebecca H. Green, Curt D. Storlazzi
2021, Journal of Geophysical Research-Oceans (126)
Two-dimensional mean wave-driven flow and setup dynamics were investigated at a reef-lagoon system at Ningaloo Reef, Western Australia, using the numerical wave-flow model, SWASH. Phase-resolved numerical simulations of the wave and flow fields, validated with highly detailed field observations (including >10 sensors through the energetic surf zone),...
Geology and calcite deposition of Fort Stanton-Snowy River Cave
Johanna Blake
2021, Lite Geology (48) 7-8
No abstract available....
Evaluating a laboratory flume microbiome as a window into natural riverbed biogeochemistry
Matthew H. Kaufman, John G. Warden, M. Bayani Cardenas, James C. Stegen, Emily B. Graham, Joseph Brown
2021, Frontiers in Water (21)
Riverbeds are hotspots for microbially-mediated reactions that exhibit pronounced variability in space and time. It is challenging to resolve biogeochemical mechanisms in natural riverbeds, as uncontrolled settings complicate data collection and interpretation. To overcome these challenges, laboratory flumes are often used as proxies for natural riverbed systems. Flumes capture spatiotemporal...
Ecosystem response persists after a prolonged marine heatwave
Robert M. Suryan, Mayumi L. Arimitsu, Heather A. Coletti, Russell R. Hopcroft, Mandy Lindeberg, Steven J. Barbeaux, Sonia Batten, William J. Burt, Mary Anne Bishop, James L. Bodkin, R. Brenner, Robert W. Campbell, Daniel A. Cushing, Seth L. Danielson, Martin W. Dorn, Brie Drummond, Daniel Esler, Thomas S. Gelatt, Dana H. Hanselman, Katrin Iken, David B. Irons, Scott A. Hatch, Stormy Haught, Kris Holderied, David G. Kimmel, Brenda H. Konar, Kathy J. Kuletz, Arthur B. Kettle, Benjamin J. Laurel, John M. Maniscalco, Daniel Monson, Craig O. Matkin, Caitlin McKinstry, John Moran, D. Olsen, John F. Piatt, Wayne A. Palsson, W. Scott Pegau, Lauren A. Rogers, Nora A. Rojek, Anne Schaefer, Ingrid B. Spies, J.M. Straley, Suzanne L. Strom, Marysia Szymkowiak, Kathryn L. Sweeney, Ben P. Weitzman, Ellen M. Yasumiishi, Stephanie Zador
2021, Scientific Reports (11)
Some of the longest and most comprehensive marine ecosystem monitoring programs were established in the Gulf of Alaska following the environmental disaster of the Exxon Valdez oil spill over 30 years ago. These monitoring programs have been successful in assessing recovery from oil spill impacts, and their continuation decades later has now provided...
