Effects of increased temperature on arctic slimy sculpin Cottus cognatus is mediated by food availability: Implications for climate change
Casey A. Pennock, Phaedra E. Budy, Carla Atkinson, Nick Barrett
2021, Freshwater Biology (66) 549-561
Lakes are vulnerable to climate change, and warming rates in the Arctic are faster than anywhere on Earth. Fishes are sensitive to changing temperatures, which directly control physiological processes. Food availability should partly dictate responses to climate change because energetic demands change with temperature, but few studies have simultaneously...
Strategic habitat conservation for beach mice: Estimating management scenario efficiencies
James P. Cronin, Blair Tirpak, Leah L. Dale, Virginia L. Robenski, John M. Tirpak, Bruce G. Marcot
2021, Journal of Wildlife Management (85) 324-339
The Perdido Key beach mouse (Peromyscus polionotus trissyllepsis), Choctawhatchee beach mouse (P. p. allophrys), and St. Andrew beach mouse (P. p. peninsularis) are 3 federally endangered subspecies that inhabit coastal dunes of Alabama and Florida, USA. Conservation opportunities for these subspecies are limited and costly. Consequently, well‐targeted efforts are required...
Evidence for continental-scale dispersal of antimicrobial resistant bacteria by landfill-foraging gulls
Christina Ahlstrom, Marielle L. van Toor, Hanna Woksepp, Jeffrey C Chandler, John Reed, Andrew B. Reeves, Jonas Waldenström, Alan B. Franklin, David C. Douglas, Jonas Bonnedahl, Andrew M. Ramey
2021, Article
Anthropogenic inputs into the environment may serve as sources of antimicrobial resistant bacteria and alter the ecology and population dynamics of synanthropic wild animals by providing supplemental forage. In this study, we used a combination of phenotypic and genomic approaches to characterize antimicrobial resistant indicator bacteria, animal telemetry to describe...
Identification of seasonal streamflow regimes and streamflow drivers for daily and peak flows in Alaska
Janet H. Curran, Frances E. Biles
2021, Water Resources Research (57)
Alaska is among northern high‐latitude regions where accelerated climate change is expected to impact streamflow properties, including seasonality and primary flow drivers. Evaluating changes to streamflow, including flood characteristics, across this large and diverse environment can be improved by identifying the distribution and influence of flow drivers. Using metrics of...
Characterizing physical properties of streambed interface sediments using in situ complex electrical conductivity measurements
Cheng-Hui Wang, Martin A. Briggs, Frederick Day-Lewis, L. Slater
2021, Water Resources Research (57)
Streambed sediment physical properties such as surface area, are difficult to quantify in situ but exert a high‐level control on a wide range of biogeochemical processes and sorption of contaminants. We introduce the use of complex electrical conductivity (CC) methods (also known as spectral induced polarization (SIP))...
Tungsten skarn mineral resource assessment of the Great Basin region of western Nevada and eastern California
Graham W. Lederer, Federico Solano, Joshua Aaron Coyan, Kevin Denton, Kathryn E. Watts, Celestine N. Mercer, Damon Bickerstaff, Matthew Granitto
2021, Journal of Geochemical Exploration (223)
A new quantitative mineral resource assessment for tungsten, a critical mineral commodity with highly concentrated production and a moderate risk of global supply disruption, was conducted for the Great Basin region of western Nevada and eastern California. This assessment was part of a larger effort focusing on three regions in...
Upper Colorado River Basin 20th century droughts under 21st century warming: Plausible scenarios for the future
Connie A. Woodhouse, Rebecca M. Smith, Stephanie A. McAfee, Gregory T. Pederson, Gregory J. McCabe, W. Paul Miller, Adam Csank
2021, Climate Services (21)
This study builds on a collaboration with a water resource management community of practice in the Upper Colorado River Basin to develop scenarios of future drought and assess impacts on water supply reliability. Water managers are concerned with the impacts of warming on water year streamflow, but uncertainties in projections...
The normal faulting 2020 Mw5.8 Lone Pine, Eastern California earthquake sequence
Egill Hauksson, Brian J. Olsen, Alex R. Grant, Jennifer R Andrews, Angela I. Chung, Susan E. Hough, Hiroo Kanamori, Sara K. McBride, Andrew J. Michael, Morgan T. Page, Zachary E. Ross, Deborah Smith, Sotiris Valkaniotis
2021, Seismological Research Letters (92) 679-698
The 2020 Mw">Mw 5.8 Lone Pine earthquake, the largest earthquake on the Owens Valley fault zone, eastern California, since the nineteenth century, ruptured an extensional stepover in that fault. Owens Valley separates two normal‐faulting...
Evidence of post-breeding prospecting in a long-distance migrant.
Max Ciaglo, Ross Calhoun, Scott W Yanco, Michael B. Wunder, Craig A. Stricker, Brian D Linkhart
2021, Ecology and Evolution (11) 599-611
Organisms assess biotic and abiotic cues at multiple sites when deciding where to settle. However, due to temporal constraints on this prospecting, the suitability of available habitat may be difficult for an individual to assess when cues are most reliable, or at the time they are making settlement decisions....
Self-limitation of sand storage in a bedrock-canyon river arising from the interaction of flow and grain size
David J. Topping, Paul E. Grams, Ronald E. Griffiths, David J. Dean, Scott Wright, Joel A. Unema
2021, Journal of Geophysical Research Earth Surface (126)
Bedrock-canyon rivers tend to be supply limited because they are efficient transporters of sediment and not because the upstream supply of sediment is small. A byproduct of this supply limitation is that the finer alluvium stored in these rivers has shorter residence times and smaller volumes than...
Effects of postfire climate and seed availability on postfire conifer regeneration
Joseph A E Stewart, Phillip J. van Mantgem, Derek J N Young, Kristen L. Shive, Haiganoush K. Preisler, Adrian Das, Nathan L. Stephenson, Jon Keeley, Hugh D. Safford, Micah Wright, Kevin R Welch, James H. Thorne
2021, Ecological Applications (31)
Large, severe fires are becoming more frequent in many forest types across the western United States and have resulted in tree mortality across tens of thousands of hectares. Conifer regeneration in these areas is limited because seeds must travel long distances to reach the interior of...
Numerical simulations of the geospace response to the arrival of an idealized perfect interplanetary coronal mass ejection
Daniel T. Welling, Jeffrey J. Love, E. Joshua Rigler, Denny M. Oliveira, Colin M. Komar, Steven Morley
2021, Space Weather (19)
Previously, Tsurutani and Lakhina (2014, https://doi.org/10.1002/2013GL058825) created estimates for a “perfect” interplanetary coronal mass ejection and performed simple calculations for the response of geospace, including . In this study, these estimates are used to drive a coupled magnetohydrodynamic-ring current-ionosphere model of geospace to obtain more physically...
Behavioral responses across a mosaic of ecosystem states restructure a sea otter–urchin trophic cascade
Joshua G Smith, Joseph A. Tomoleoni, Michelle M. Staedler, Sophia Lyon, Jessica Fujii, M. Tim Tinker
2021, PNAS (118)
Consumer and predator foraging behavior can impart profound trait-mediated constraints on community regulation that scale up to influence the structure and stability of ecosystems. Here, we demonstrate how the behavioral response of an apex predator to changes in prey behavior and condition can dramatically alter the role and relative contribution...
A replication of proximity to chronic wasting disease, perceived risk, and social trust in managing agency between hunters in Minnesota and Illinois
Kyle Smith, Susan A. Schroeder, Adam Landon, Louis J. Cornicelli, Leslie McInenly, David C. Fulton
2021, Human Dimensions of Wildlife (26) 503-506
No abstract available. ...
Revisiting California’s past great earthquakes and long-term earthquake rate
Susan E. Hough, Morgan T. Page, Leah Salditch, Molly M. Gallahue, Madeleine C. Lucas, James S. Neely, Seth Stein
2021, Bulletin of the Seismological Society of America (111) 356-370
In this study, we revisit the three largest historical earthquakes in California—the 1857 Fort Tejon, 1872 Owens Valley, and 1906 San Francisco earthquakes—to review their published moment magnitudes, and compare their estimated shaking distributions with predictions using modern ground‐motion models (GMMs) and ground‐motion intensity conversion equations. Currently accepted moment magnitude...
Modeling areal measures of campsite impacts on the Appalachian National Scenic Trail to enhance ecological sustainability
Johanna R. Arredondo, Jeffrey L. Marion, Fletcher P. Meadema, Jeremy F. Wimpey
2021, Journal of Environmental Management (279)
Campsite impacts in protected natural areas are most effectively minimized by a containment strategy that focuses use on a limited number of sustainable campsites that spatially concentrate camping activities. This research employs spatial autoregressive (SAR) modeling to evaluate the relative influence...
Limited mantle hydration by bending faults at the Middle America Trench
Nathaniel C. Miller, Danile Lizarralde, John A. Collins, Steven Holbrook, Harm van Avendonk
2021, Journal of Geophysical Research (25)
Seismic anisotropy measurements show that upper mantle hydration at the Middle America Trench (MAT) is limited to serpentinization and/or water in fault zones, rather than distributed uniformly. Subduction of hydrated oceanic lithosphere recycles water back into the deep mantle, drives arc volcanism, and affects seismicity at...
Performance of the ecosystem demography model (EDv2.2) in simulating gross primary production capacity and activity in a dryland study area
Hamid Dashti, Karun Pandit, Nancy F. Glenn, Douglas J. Shinneman, Gerald N. Flerchinger, Andrew A. Hudak, Marie Anne de Graaf, Alejandro N Flores, Susan L. Ustin, Nayani Ilangakoon, Aaron W. Fellows
2021, Agricultural and Forest Meteorology (297)
Dryland ecosystems play an important role in the global carbon cycle, including regulating the inter-annual global carbon sink. Dynamic global vegetation models (DGVMs) are essential tools that can help us better understand carbon cycling in different ecosystems. Currently, there is limited knowledge of the performance of these models in drylands...
Heed the data gap: Guidelines for using incomplete datasets in annual stream temperature analyses
Zachary C. Johnson, Brittany G. Johnson, Martin A. Briggs, Craig D. Snyder, Nathaniel P. Hitt, Warren Devine
2021, Ecological Indicators (122)
Stream temperature data are useful for deciphering watershed processes important for aquatic ecosystems. Accurately extracting signal trends from stream temperature is essential for predicting responses of environmental and ecological indicators to change. Missing data periods are common for various reasons, and...
High elevation ice patch documents Holocene climate variability in the northern Rocky Mountains
Nathan J. Chellman, Gregory T. Pederson, Craig Lee, Dave McWethy, Kathryn Pusman, Jeffery R. Stone, Sabrina R. Brown, Joseph R. McConnell
2021, Quaternary Science Advances (3)
Paleoclimate records from ice cores generally are considered to be the most direct indicators of environmental change, but are rare from mid-latitude, continental regions such as the western United States. High-elevation ice patches are known to be important archaeological archives in alpine regions and potentially could provide records important for...
Site response, basin amplification, and earthquake stress drops in the Portland, Oregon area
Arthur D. Frankel, Alex R. Grant
2021, Bulletin of the Seismological Society of America (111) 671-685
Site response, sedimentary basin amplification, and earthquake stress drops for the Portland, Oregon area were determined using accelerometer recordings at 16 sites of 10 local earthquakes with MD">MDMD 2.6–4.0. A nonlinear inversion was...
Novel diagnostic tests for the putative agent of bacterial gill disease in Pacific razor clams (Siliqua patula)
Brooke A Travis, William N. Batts, Maya Groner, Paul Hershberger, Steven C. Fradkin, Carla M. Conway, Linda Park, Maureen K. Purcell
2021, Journal of Invertebrate Pathology (178)
Nuclear inclusion X (NIX) is a gamma proteobacteria that infects the nuclei of gill epithelial cells in Pacific razor clams. NIX has been associated with clam die-offs in coastal Washington. A quantitative PCR (qPCR) assay was developed to detect NIX in Pacific razor clams, and assay specificity was confirmed by chromogenic in...
Spatial patterns and drivers of nonperennial flow regimes in the contiguous United States
John C. Hammond, Margaret Zimmer, Margaret Shanafield, Kendra E. Kaiser, Sarah E Godsey, Meryl C. Mims, Samuel Zipper, Ryan Burrow, Stephanie K. Kampf, Walter Dodds, C. Nathan Jones, Corey Krabbenhoft, Kate Boersma, Thibault Datry, Julian D. Olden, George H. Allen, Adam N. Price, Katie H. Costigan, Rebecca Hale, Adam S Ward, Daniel Allen
2021, Geophysical Research Letters (48)
Over half of global rivers and streams lack perennial flow, and understanding the distribution and drivers of their flow regimes is critical for understanding their hydrologic, biogeochemical, and ecological functions. We analyzed nonperennial flow regimes using 540 U.S. Geological Survey watersheds across the contiguous United States from 1979 to 2018....
The 2018 update of the US National Seismic Hazard Model: Additional period and site class data
Allison Shumway, Mark D. Petersen, Peter M. Powers, Sanaz Rezaeian, Kenneth S. Rukstales, Brandon Clayton
2021, Earthquake Spectra (37) 1145-1161
As part of the update of the 2018 National Seismic Hazard Model (NSHM) for the conterminous United States (CONUS), new ground motion and site effect models for the central and eastern United States were incorporated, as well as basin depths from local seismic velocity models in four western US (WUS)...
Pesticides and pesticide degradates in groundwater used for public supply across the United States: Occurrence and human-health context
Laura M. Bexfield, Kenneth Belitz, Bruce D. Lindsey, Patricia Toccalino, Lisa H. Nowell
2021, Environmental Science & Technology (55) 362-372
This is the first assessment of groundwater from public-supply wells across the United States to analyze for >100 pesticide degradates and to provide human-health context for degradates without benchmarks. Samples from 1204 wells in aquifers representing 70% of the volume pumped for drinking supply were analyzed for 109 pesticides (active...
