Shoaling wave shape estimates from field observations and derived bedload sediment rates
Tarandeep S. Kalra, Steven E. Suttles, Christopher R. Sherwood, John C. Warner, Alfredo Aretxabaleta, Gibson Robert Scott Leavitt
2022, Journal of Marine Science and Engineering (10)
The shoaling transformation from generally linear deep-water waves to asymmetric shallow-water waves modifies wave shapes and causes near-bed orbital velocities to become asymmetrical, contributing to net sediment transport. In this work, we used two methods to estimate the asymmetric wave shape from data at three sites. The first method converted...
Empirical map-based nonergodic models of site response in the greater Los Angeles area
Grace Alexandra Parker, Annemarie S. Baltay Sundstrom
2022, Bulletin of the Seismological Society of America (112) 1607-1629
We develop empirical estimates of site response at seismic stations in the Los Angeles area using recorded ground motions from 414 M 3–7.3 earthquakes in southern California. The data are from a combination of the Next Generation Attenuation‐West2 project, the 2019 Ridgecrest earthquakes, and about 10,000 newly processed records. We estimate site...
Earthquake-derived seismic velocity changes during the 2018 caldera collapse of Kīlauea volcano
Alicia J. Hotovec-Ellis, Brian Shiro, David R. Shelly, Kyle R. Anderson, Matt Haney, Weston Thelen, Emily K. Montgomery-Brown, Ingrid A. Johanson
2022, Journal of Geophysical Research (127)
The 2018 Kīlauea caldera collapse produced extraordinary sequences of seismicity and deformation, with 62 episodic collapse events which significantly altered the landscape of the summit region. Despite decades of focused scientific studies at Kīlauea, detailed information about the internal structure of the volcano is limited. Recently developed...
Perfluoroalkyl and polyfluoroalkyl substances in groundwater used as a source of drinking water in the eastern United States
Peter B. McMahon, Andrea K. Tokranov, Laura M. Bexfield, Bruce D. Lindsey, Tyler D. Johnson, Melissa A. Lombard, Elise Watson
2022, Environmental Science & Technology (56) 2279-2288
In 2019, 254 samples were collected from five aquifer systems to evaluate per- and polyfluoroalkyl substance (PFAS) occurrence in groundwater used as a source of drinking water in the eastern United States. The samples were analyzed for 24 PFAS, major ions, nutrients, trace elements, dissolved organic carbon (DOC), volatile organic...
Nutrient improvements in Chesapeake Bay: Direct effect of load reductions and implications for coastal management
Rebecca R. Murphy, Jennifer L. D. Keisman, Jon Harcum, Renee Karrh, Michael F. Lane, Elgin S. Perry, Qian Zhang
2022, Environmental Science & Technology (56) 260-270
In Chesapeake Bay in the United States, decades of management efforts have resulted in modest reductions of nutrient loads from the watershed, but corresponding improvements in estuarine water quality have not clearly materialized. Generalized additive models were used to directly link river flows and nutrient loads from the watershed to...
How much marsh restoration is enough to deliver wave attenuation coastal protection benefits?
Katherine A. Castagno, Neil K. Ganju, Michael W. Beck, Alison Bowden, Steven B. Scyphers
2022, Frontiers in Marine Science (8)
As coastal communities grow more vulnerable to sea-level rise and increased storminess, communities have turned to nature-based solutions to bolster coastal resilience and protection. Marshes have significant wave attenuation properties and can play an important role in coastal protection for many communities. Many restoration projects seek to maximize this ecosystem...
Behavioral state-dependent habitat selection and implications for animal translocations
Simona Picardi, Peter S. Coates, Jesse L. Kolar, Shawn T. O’Neil, Steven R. Mathews, David K. Dahlgren
Annabel Smith, editor(s)
2022, Journal of Applied Ecology (59) 624-635
Post-release monitoring of translocated animals is often used to inform future translocation protocols. Quantifying habitat selection of translocated individuals may help identify features that characterize good settlement habitat and thus inform the choice of future release sites. However, translocated animals often undergo post-release behavioural modification, and their habitat selection...
Invasion of Siberian elm (Ulmus pumila) along the South Platte River: The roles of seed source, human influence, and river geomorphology
Lindsay Reynolds, Laura Perry, Patrick B. Shafroth, Gabrielle L. Katz, Andrew S. Norton
2022, Wetlands (42) 1-23
Riparian ecosystems in the western USA have been invaded by non-native woody species deliberately introduced for stream bank stabilization, agricultural windbreaks, and urban shade. Recent work suggests that the non-native tree Ulmus pumila (Siberian elm) is capable of significant spread in western riparian ecosystems, that range infilling is still incomplete, and that...
Daily foraging activity of an imperiled ground squirrel: Effects of hibernation, thermal environment, body condition, and conspecific density
Austin A Z. Allison, Courtney J. Conway
2022, Behavioral Ecology and Sociobiology (76)
Food acquisition is among the most important tasks faced by free-ranging animals. Predation and thermal risks, however, can make foraging a costly endeavor and foraging can preclude other important activities. Moreover, seasonal life cycle events such as hibernation impose energetic thresholds and time constraints on foraging. These factors interact with...
Estimating wolf abundance from cameras
David Edward Ausband, Paul M. Lukacs, Mark A. Hurley, Shane Roberts, Kaitlyn M. Strickfaden, Anna K. Moeller
2022, Ecosphere (13)
Monitoring the abundance of rare carnivores is a daunting task for wildlife biologists. Many carnivore populations persist at relatively low densities, public interest is high, and the need for population estimates is great. Recent advances in trail camera technology provide an unprecedented opportunity for biologists to monitor rare species economically....
Assessment of cereal grain waste densities to aid waterfowl conservation planning in the Klamath Basin
Daniel A. Skalos, Joseph P. Fleskes, Jeffery D. Kohl, Mark P. Herzog, Michael L. Casazza
2022, Journal of Fish and Wildlife Management (13) 3-16
Postharvest waste seed from cereal grains is a major dietary component of waterfowl in the Klamath Basin in northeastern California and southeastern Oregon, a region that plays host to over a million waterfowl annually. Understanding food abundance is critical to local waterfowl management; therefore, we conducted a study in 2008...
The Pacific as the world’s greatest theater of bird migration: Extreme flights spark questions about physiological capabilities, behavior, and the evolution of migratory pathways
Theunis Piersma, Robert E. Gill Jr., Daniel R. Ruthrauff, Christopher G. Guglielmo, Jesse R. Conklin, Colleen M. Handel
2022, Ornithology (139)
The Pacific Basin, by virtue of its vastness and its complex aeroscape, provides unique opportunities to address questions about the behavioral and physiological capabilities and mechanisms through which birds can complete spectacular flights. No longer is the Pacific seen just as a formidable barrier between terrestrial habitats in the north...
Bathymetric map, surface area, and stage-capacity for the U.S. part of Lake Koocanusa, Lincoln County, Montana, 2016–18
Ryan L. Fosness, Taylor J. Dudunake
2022, Scientific Investigations Map 3485
The U.S. Geological Survey and U.S. Army Corps of Engineers collected high-resolution multibeam sonar data during 2016–18 to compute stage-area and stage-capacity tables for the U.S. part of Koocanusa Reservoir in Lincoln County, northwestern Montana. Koocanusa Reservoir is a transboundary reservoir extending about 48 miles from Libby Dam upstream to...
Post-release survival of translocated fishers: Implications for translocation success
Jeffrey C. Lewis, Kurt Jenkins, Patricia J. Happe, David J. Manson, Paul C. Griffin
2022, Journal of Wildlife Management (86)
As a vital tool for the conservation of species at risk, translocations are also opportunities to identify factors that influence translocation success. We evaluated factors associated with post-release survival of 90 radio-tracked fishers (Pekania pennanti) translocated from central British Columbia, Canada, to the Olympic Peninsula of Washington, USA, from 2008...
Landsat data ecosystem case study: Actor perceptions of the use and value of landsat
Edmund B. Molder, Sarah Ferer Schenkein, Abby Elizabeth McConnell, Karl K Benedict, Crista L. Straub
2022, Frontiers in Environmental Science (9)
It is well-known that Earth observation (EO) data plays a critical role in scientific understanding about the global environment. There is also growing support for the use of EO data to provide context-specific insights, with significant implications for their use in decision support systems. Technological development over recent...
System characterization report on Planet’s SuperDove
Minsu Kim, Seonkyung Park, Cody Anderson, Gregory L. Stensaas
2022, Open-File Report 2021-1030-F
Executive SummaryThis report addresses system characterization of Planet’s SuperDove and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports present and detail the methodology and procedures for characterization; present technical and...
The role of hydraulic and geomorphic complexity in predicting invasive carp spawning potential: St. Croix River, Minnesota and Wisconsin, United States
Alan Kasprak, P. Ryan Jackson, Evan M. Lindroth, J. William Lund, Jeffrey R. Ziegeweid
2022, PLoS ONE (17)
Since they were first introduced to the United States more than 50 years ago, invasive carp have rapidly colonized rivers of the Mississippi River Basin, with detrimental effects on native aquatic species. Their continued range expansion, and potential for subsequent invasion of the Great Lakes, has led to increased concern...
The occurrence of large floods in the United States in the modern hydroclimate regime: Seasonality, trends, and large-scale climate associations
Mathias Collins, Glenn A. Hodgkins, Stacey A. Archfield, Robert M. Hirsch
2022, Water Resources Research (58)
Many studies investigate river floods by analyzing annual maximum series that record the largest flow of each year, including many within-bank events inconsequential for human communities. Fewer focus on larger floods, especially at the continental scale. Using 473 streamgages across the conterminous United States with near-natural flow from 1966 to...
Use of riparian spiders as sentinels of persistent and bioavailable chemical contaminants in aquatic ecosystems: A review
Matthew M. Chumchal, Gale B. Beaubien, Ray W. Drenner, Madeline P. Hannappel, Marc A. Mills, Connor I. Olson, Ryan R. Otter, Andrew C. Todd, David Walters
2022, Environmental Toxicology and Chemistry (41) 499-514
Aquatic ecosystems around the world are contaminated with a wide range of anthropogenic chemicals, including metals and organic pollutants, that originate from point and nonpoint sources. Many of these chemical contaminants have complex environmental cycles, are persistent and bioavailable, can be incorporated into aquatic food webs, and pose a threat...
Silicate volcanism on Europa’s seafloor and implications for habitability
Michael T. Bland, Catherine Elder
2022, Geophysical Research Letters (49)
Habitable ocean environments on Europa require an influx of reactants to maintain chemical disequilibrium. One possible source of reactants is seafloor volcanism. Modeling has shown that dissipation of tidal energy in Europa's asthenosphere can generate melt, but melt formation cannot be equated with volcanism. Melt must also...
Deconstructing the microbial necromass continuum to inform soil carbon sequestration
Kate M Buckeridge, Courtney Creamer, Jeanette Whitaker
2022, Functional Ecology (36) 1396-1410
Microbial necromass is a large, dynamic and persistent component of soil organic carbon, the dominant terrestrial carbon pool. Quantification of necromass carbon stocks and its susceptibility to global change is becoming standard practice in soil carbon research. However, the typical proxies used for necromass carbon do not reveal the...
Evaluation of electrical and electromagnetic geophysical techniques to inspect earthen dam and levee structures in Arkansas
Ryan F. Adams, Benjamin Miller, Wade Kress, Scott Ikard, Jason D. Payne, Walter Killion
2022, Journal of Environmental and Engineering Geophysics (26) 287-303
Within the state of Arkansas there is an increasing number of aging dams and levees that have little to no documentation concerning their construction or composition. Surface geophysical surveys offer a non-intrusive method for investigating these structures: To describe their lithologic makeup, to evaluate the materials that they were constructed...
Human-in-the-Loop segmentation of earth surface imagery
Daniel D. Buscombe, Evan B. Goldstein, Christopher R. Sherwood, Cameron S Bodine, Jenna A. Brown, Jaycee Favela, Sharon Fitzpatrick, Christine J. Kranenburg, Jin-Si R. Over, Andrew C. Ritchie, Jonathan A. Warrick, Phillipe Alan Wernette
2022, Earth and Space Science (9)
Segmentation, or the classification of pixels (grid cells) in imagery, is ubiquitously applied in the natural sciences. Manual methods are often prohibitively time-consuming, especially those images consisting of small objects and/or significant spatial heterogeneity of colors or textures. Labeling complicated regions of transition that in Earth surface imagery are represented...
Conservation under uncertainty: Innovations in participatory climate change scenario planning from U.S. national parks
Brian W. Miller, Gregor W. Schuurman, Amy Symstad, Amber C Runyon, Brecken C. Robb
2022, Conservation Science and Practice (4)
The impacts of climate change (CC) on natural and cultural resources are far-reaching and complex. A major challenge facing resource managers is not knowing the exact timing and nature of those impacts. To confront this problem, scientists, adaptation specialists, and resource managers have begun to use scenario planning (SP). This...
Tidally-driven gas exchange in beaches: Implications for sea turtle nest success
K.M. Goforth, Raymond Carthy
2022, Journal of Coastal Research (38) 523-537
The success of individual sea turtle nests is influenced by nest location on the beach and the resulting incubation environment. Several abiotic factors affect nest incubation, and thus nest success, but tides and gas exchange are two of the most important. The effects of tides on nest success have been...
