Surface material and snout-vent length predict vertical scaling ability in brown treesnakes:an evaluation of multispecies barriers for invasive species control on Guam
Eric T. Hileman, Bradke, Melia G. Nafus, Amy A. Yackel Adams, Robert Reed
2021, Management of Biological Invasions. (12) 476-494
The combination of snake-proof barriers and an aerial toxicant delivery system for snake suppression may allow large-scale control of invasive brown treesnakes (Boiga irregularis) on Guam. However, suppression or local eradication of several other species (e.g., introduced ungulates, cats, rodents) may be required for successful restoration and recovery of forest...
Emerging investigator series: Municipal wastewater as a year-round point source of neonicotinoid insecticides that persist in an effluent-dominated stream
Danielle T. Webb, Hui Zhi, Dana W. Kolpin, Rebecca D. Klaper, Luke R. Iwanowicz, Gregory H. LeFevre
2021, Environmental Sciences: Processes & Impacts (23) 678-688
Neonicotinoids in aquatic systems have been predominantly associated with agriculture, but some are increasingly being linked to municipal wastewater. Thus, the aim of this work was to understand the municipal wastewater contribution to neonicotinoids in a representative, characterized effluent-dominated temperate-region stream. Our approach was to quantify the spatiotemporal concentrations...
A review of spatially resolved techniques and applications of organic petrography in shale petroleum systems
Paul C. Hackley, Aaron M. Jubb, Ryan J. McAleer, Brett J. Valentine, Justin E. Birdwell
2021, International Journal of Coal Geology (241)
This review examines new techniques and applications of organic petrography in source-rock reservoir petroleum systems that have occurred along with development of the global ‘shale revolution’ in energy resources. The review is limited to techniques and instrumentation that provide spatially resolved information, typically at or...
Red-throated loon (Gavia stellata) use of nearshore marine habitats—Results from a 2019 pilot study in northern Alaska
Brian D. Uher-Koch, Christopher J. Latty, Joel A. Schmutz
2021, Open-File Report 2021-1029
Red-throated loons (Gavia stellata) are a species of conservation concern in Alaska due to recent evidence of a population decline on the Arctic Coastal Plain (ACP) in northern Alaska. In 2019, the U.S. Geological Survey and the U.S. Fish and Wildlife Service conducted a pilot study to evaluate diet...
Multi-decadal shifts in the distribution and timing of Pacific herring (Clupea pallasii) spawning in Prince William Sound, Alaska
David W. McGowan, Trevor A. Branch, Stormy Haught, Mark David Scheuerell
Trevor A. Branch, editor(s)
2021, Canadian Journal of Fisheries and Aquatic Sciences (78) 1611-1627
The location and timing of spawning play a critical role in pelagic fish survival during early life stages and can affect subsequent recruitment. Spawning patterns of Pacific herring (Clupea pallasii) were examined in Prince William Sound (1973–2019) where the population has failed to recover since its collapse in 1993. Abrupt...
The value of US coral reefs for flood risk reduction
Borja G. Reguero, Curt D. Storlazzi, Ann E. Gibbs, James B. Shope, Aaron Cole, Kristen A. Cumming, Mike Beck
2021, Nature Sustainability (4) 688-698
Habitats, such as coral reefs, can mitigate increasing flood damages through coastal protection services. We provide a fine-scale, national valuation of the flood risk reduction benefits of coral habitats to people, property, economies and infrastructure. Across 3,100 km of US coastline, the top-most 1 m of coral reefs prevents the 100-yr flood...
Epigean crayfish of the Potomac River Basin in West Virginia: Zoogeography, natural history and conservation
Zachary J. Loughman, Audrey M. Sykes, Matthew I. McKinney, Stuart A. Welsh
2021, Freshwater Crayfish (26) 37-49
Crayfish are an aquatic fauna of conservation concern, yet regional studies are lacking on zoogeography and life history. We compared recent and historical species distribution data and assessed conservation standings of native and nonindigenous crayfish of the Potomac River Basin in West Virginia. From 2007–2011, a total of 1764 crayfish...
Implications of tagging effects for interpreting the performance of sea lamprey traps in a large river
Jessica Nelson, Andrew M. Rous, Adrienne R. McLean, Jessica Barber, Gale A Bravener, Christopher M. Holbrook, Robert L. McLaughlin
2021, Journal of Great Lakes Research (47) 1200-1208
Abundance estimates can be crucial for managing species of economic concern. The accuracy of these estimates can depend on the methods used to track animals and to estimate abundance from tracking data. We tested experimentally if disparate estimates of trapping efficiency calculated for sea lamprey (Petromyzon marinus) in the St....
Investigating vegetation responses to underground nuclear explosions through integrated analyses
Kurt Solander, Adam D. Collins, Erika Swanson, Ellis Q. Margolis, Brandon Crawford, Elizabeth Miller, Min Chen, Anita Lavadie-Bulnes, Max Ryan, Isaac Borrego, Sanna Sevanto, Emily Schultz-Fellenz
2021, Journal of Geophysical Research Biogeosciences (126)
Vegetation has the potential to respond to underground nuclear explosions, yet these links have not been fully explored. Given the lack of previously described signatures, the changes in vegetation are possibly subtle. The integration of multiple different data streams is potentially a useful approach to improve...
Substantial hysteresis in emergent temperature sensitivity of global wetland CH4 emissions
Kuang-Yu Chang, William J. Riley, Sara H. Knox, Robert B. Jackson, Gavin McNicol, Benjamin Poulter, Mika Aurela, Dennis Baldocchi, Sheel Bansal, Gil Bohrer, David I. Campbell, Alessandro Cescatti, Housen Chu, Kyle B. Delwiche, Ankur R. Desai, Eugenie S. Euskirchen, Matthias Goeckede, Thomas Friborg, Kyle S. Hemes, Takashi Hirano, Hiroki Iwata, Manuel Helbig, Trevor F. Keenan, Minseok Kang, Ken Krauss, Annalea Lohila, Bhaskar Mitra, Ivan Mammarella, Akira Miyata, Mats B. Nilsson, Walter C. Oechel, Akso Noormets, Matthias Peichl, Michele L. Reba, Janne Rinne, Dario Papale, Benjamin R. K. Runkle, Youngryel Ryu, Torsten Sachs, Karina VR Schafer, Hans Peter Schmid, Narasinha Shurpali, Oliver Sonnentag, Angela Tang, Margaret S. Torn, Eeva-Stiina Tuittila, Carlo Trotta, Masahito Ueyama, Rodrigo Vargas, Timo Vesala, Lisamarie Windham-Myers, Zhen Zhang, Donatella Zona
2021, Nature Communications (12)
Wetland methane (CH4) emissions (FCH4) are important in global carbon budgets and climate change assessments. Currently, FCH4 projections rely on prescribed static temperature sensitivity that varies among biogeochemical models. Meta-analyses have proposed a consistent FCH4 temperature...
Three-dimensional geologic map of the Brady geothermal area, Nevada
Drew L. Siler, James E. Faulds, Nicholas H. Hinz, John H. Queen
2021, Scientific Investigations Map 3469
The three-dimensional (3D) geologic map characterizes the subsurface in the Brady geothermal area in the northern Hot Springs Mountains of northwestern Nevada. We built the 3D map by integrating the results from detailed geologic mapping, seismic-reflection, potential-field-geophysical, and lithologic well-logging investigations completed in the study area. This effort was undertaken...
Critical shallow and deep hydrologic conditions associated with widespread landslides during a series of storms between February and April 2018 in Pittsburgh and vicinity, western Pennsylvania, USA
Francis Ashland
2021, Landslides (18) 2159-2174
The potential for widespread landslides is generally increased when extraordinary wet periods occur during times of elevated subsurface hydrologic conditions. A series of storms in early 2018 in Pittsburgh, Pennsylvania, overlapped with a period of increased shallow soil moisture and rising bedrock groundwater levels resulting from seasonally diminished evapotranspiration and...
Slow recovery of headwater-stream fishes following a catastrophic poisoning event
Mary Freeman, Duncan Elkins, Peter Maholland, Zachary Butler, Maxwell Kleinhans, Jonathan Skaggs, Edward Stowe, Carrie A. Straight, Seth J. Wenger
2021, Journal of Fish and Wildlife Management (12) 362-372
Accidental spills of chemicals and other pollutants can decimate populations of stream-dwelling species. Recovery from such accidents can be relatively fast and complete when the affected stream reaches can be recolonized from upstream and downstream sources. However, faunal recoveries from accidental spills that extirpate populations...
The role of behavioral ecotoxicology in environmental protection
Alex T. Ford, Marlene Agerstrand, Bryan W. Brooks, Joel Allen, Michael G. Bertram, Tomas Brodin, ZhiChao Dang, Sabine Duquesne, Rene Sahm, Frauke Hoffmann, Henner Hollert, Stefanie Jacob, Nils Kluver, James M. Lazorchak, Mariana Ledesma, Steven D. Melvin, Silvia Mohr, Stephanie Padilla, Gregory G. Pyle, Stefan Scholz, Minna Saaristo, Els Smit, Jeffery A. Steevens, Sanne van den Berg, Werner Kloas, Bob B.M. Wong, Michael Ziegler, Gerd Maack
2021, Environmental Science & Technology (55) 5620-5628
For decades, we have known that chemicals affect human and wildlife behavior. Moreover, due to recent technological and computational advances, scientists are now increasingly aware that a wide variety of contaminants and other environmental stressors adversely affect organismal behavior and subsequent ecological outcomes in terrestrial and aquatic ecosystems. There is...
Remote ecological monitoring with smartphones and tasker
Therese M. Donovan, Cathleen Balantic, Jonathan Katz, Mark Massar, Randy Knutson, Kara Duh, Peter Jones, Keith Epstein, Julien Lacasse-Roger, João Dias
2021, Journal of Fish and Wildlife Management (12) 163-173
Researchers have increasingly used autonomous monitoring units to record animal sounds, track phenology with timed photographs, and snap images when triggered by motion. We piloted the use of smartphones to monitor wildlife in the Riverside East Solar Energy Zone (California) and at Indiana Dunes National Park (Indiana). For both efforts,...
Geology of the Payette National Forest and vicinity, west-central Idaho
Karen Lund
2021, Professional Paper 1666
Before the Late Cretaceous, the eastern and western parts of the geologically complex Payette National Forest, as divided by the Salmon River suture, had fundamentally different geologic histories. The eastern part is underlain by Mesoproterozoic to Cambrian(?) rocks of the Laurentian (Precambrian North American) continent. Thick Mesoproterozoic units, which are...
Hibernation behavior of a federally-threatened ground squirrel: Climate change and habitat selection implications
Amanda R. Goldberg, Courtney J. Conway
2021, Journal of Mammalogy (102) 574-587
Hibernation is an adaptation to survive periods of stress, from food limitation or harsh thermal conditions. A key question in contemporary ecology is whether rare, range-restricted species can change their behavior in response to climate change (i.e., through behavioral plasticity). The northern Idaho ground squirrel, Urocitellus brunneus (A. H. Howell, 1928), is...
Oregon and Landsat
U.S. Geological Survey
2021, Fact Sheet 2021-3021
Oregon’s landscape is as complex and diverse as it is beautiful. Mountain peaks in the Cascade Range soar higher than 10,000 feet. Crater Lake sinks to a depth of 1,943 feet, making it the deepest lake in the United States. Oregon’s lands feature forests, farm fields, grasslands, ocean coastline, rivers,...
The productivity of Cascadia aftershock sequences
Joan S. Gomberg, Paul Bodin
2021, Bulletin of the Seismological Society of America (111) 1494-1507
This study addresses questions about the productivity of Cascadia mainshock–aftershock sequences using earthquake catalogs produced by the Geological Survey of Canada and the Pacific Northwest Seismic Network. Questions concern the likelihood that future moderate to large intermediate depth intraslab earthquakes in Cascadia would have as few detectable aftershocks as those...
Gonad size measured by ultrasound to assign stage of maturity in Burbot
Lauren M. McGarvey, Jason E. Ilgen, Molly A. H. Webb, Christopher S. Guy, Jason G. McLellan
2021, Journal of Fish and Wildlife Management (12) 241-249
We measured gonad size (diameter and circumference) by ultrasound and used it as a metric to assign stage of maturity in Burbot Lota lota from Lake Roosevelt, Washington. We collected paired gonad tissue and ultrasound measurements monthly from November 2017 to March 2018 and processed gonad tissue for histological analysis to confirm...
Integrating ecological impacts: Perspectives on drought in the Upper Missouri Headwaters, Montana, United States
Amanda E. Cravens, Jamie McEvoy, Dionne Zoanni, Shelley Crausbay, Aaron R. Ramirez, Ashley E. Cooper
2021, Weather, Climate and Society (2) 363-376
Drought is a complex challenge experienced in specific locations through diverse impacts, including ecological impacts. Different professionals involved in drought preparedness and response approach the problem from different points of view, which means they may...
Regional calibration of hybrid ground‐motion simulations in moderate seismicity areas: Application to the Upper Rhine Graben
Hoby N. T. Razafindrakoto, Fabrice Cotton, Dino Bindi, Marco Pilz, Robert Graves, Sanjay Bora
2021, Bulletin of the Seismological Society of America (111) 1422-1444
This study presents the coupling of the spectral decomposition results for anelastic attenuation, stress drop, and site effects with the Graves‐Pitarka (GP) hybrid ground‐motion simulation methodology, as implemented on the Southern California Earthquake Center (SCEC) broadband platform (BBP). It is targeted to applications in the...
An ecohydrological typology for thermal refuges in streams and rivers
C. Sullivan, J. Vokoun, A. M. Helton, Martin A. Briggs, B. Kurylyk
2021, Ecohydrology (14)
Thermal refuges are thermally distinct riverscape features used by aquatic organisms during unfavorable thermal events, facilitating resilience in marginal environments. However, the thermal refuge concept is nebulous, and the often interchangeable use of the term ‘thermal refugia’ creates additional ambiguity. We argue that lexical differences resulting from divergent scholarly trainings...
Golden Eagle
Todd E. Katzner, Michael N. Kochert, Karen Steenhof, Carol L. McIntyre, Erica H. Craig, Tricia A. Miller
2021, Book chapter, Birds of the world
The Golden Eagle inhabits a wide range of latitudes and habitats throughout the Palearctic and into northern Africa, where it is largely resident. In North America, its breeding distribution includes most of Canada and Alaska, as well as the western half of the United States and northern and western Mexico....
Geophysical and video logs of selected wells at and near the former Naval Air Warfare Center Warminster, Bucks County, Pennsylvania, 2017-19
Lisa A. Senior, J. Alton Anderson, Philip H. Bird
2021, Open-File Report 2021-1025
The U.S. Geological Survey (USGS) collected borehole geophysical and video logs in 17 open-hole wells in Northampton, Warminster, and Warwick Townships, Bucks County, Pennsylvania during 2017–19 to support detailed groundwater investigations at and near the former Naval Air Warfare Center (NAWC) Warminster, where groundwater contamination with per- and polyfluoroalkyl substances...
