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Local adaptation to climate has facilitated the global invasion of cheatgrass Local adaptation to climate has facilitated the global invasion of cheatgrass
Local adaptation may facilitate range expansion during invasions, but the mechanisms promoting destructive invasions remain unclear. Cheatgrass (Bromus tectorum), native to Eurasia and Africa, has invaded globally, with particularly severe impacts in western North America. We aimed to identify mechanisms and consequences of local adaptation in the North American cheatgrass invasion. We...
Authors
Diana Gamba, Megan Vahsen, Toby Matthew Maxwell, Nikki Pirtel, Seth Romero, Justin J. Van Ee, Amanda Penn, Aayudh Das, Rotem Ben-Zeev, Owen W. Baughman, C. Sean Blaney, Randy Bodkins, Shanta Budha-Magar, Stella M Copeland, Shannon L. Davis-Foust, Alvin Diamond, Ryan C. Donnelly, Peter W. Dunwiddie, David J. Ensing, Thomas A. Everest, Holly Hoitink, Martin C. Holdrege, Ruth A. Hufbauer, Sigitas Juzenas, Jesse M. Kalwij, Ekaterina Kashirina, Sang-Tae Kim, Marcin Klisz, Alina Klyueva, Michel Langeveld, Samuel Lutfy, Daniel Martin, Christopher L. Merkord, J. P. J. Morgan, Dávid U. Nagy, Jacqueline P. Ott, Radoslaw Puchalka, Lysandra A. Pyle, Leonid Rasran, Brian G. Rector, Christoph Rosche, Marina Sadykova, Robert K. Shriver, Alexandr Stanislavschi, Brian M. Starzomski, Rachel L. Stone, Kathryn G. Turner, Alexandra K. Urza, Acer VanWallendael, Carl-Adam Wegenschimmel, Justin Zweck, Cynthia S. Brown, Elizabeth A. Leger, Dana M. Blumenthal, Matthew Germino, Lauren M. Porensky, Mevin B. Hooten, Peter B. Adler, Jesse R. Lasky
Inundation processes, barrier island breaching, and structure impacts during Hurricane Michael (2018) Inundation processes, barrier island breaching, and structure impacts during Hurricane Michael (2018)
We demonstrate the increased ability to forecast hurricane impacts with a coupled numerical modeling system by simulating ocean waves, water levels, currents, sediment transport, and structural damage to predict inundation, coastal morphological change, and residential building impacts. The Coupled-Ocean-Atmosphere-Waves-Sediment-Transport (COAWST) modeling system is applied to simulate...
Authors
John C. Warner, Christopher R. Sherwood, Mark Carson, Emma Manzella, Maitane Olabarrieta, Arthriya Subgranon, Steven Klepac, Joseph B. Zambon, Ruoying He, Z. George Xue, Muhamad Farid Geonova, Elias Hunter, Jonathan Moskaitis, James D. Doyle, Christopher J. Amante, Nicholas M. Enwright
Groundwater response to managed aquifer recharge at the Southeast Houghton Artificial Recharge Project in Tucson, Arizona Groundwater response to managed aquifer recharge at the Southeast Houghton Artificial Recharge Project in Tucson, Arizona
Managed aquifer recharge is a widespread practice for storing water in the subsurface as groundwater. At a managed aquifer recharge facility in southern Arizona, groundwater-level and repeat microgravity data were collected to monitor aquifer response. These data were used to inform parameter identification for an unsaturated-zone flow model used to simulate the recharge process. The...
Authors
Libby M. Wildermuth, Jeffrey R. Kennedy, Jacob L. Conrad
Rapid fault healing from cementation controls the dynamics of deep slow slip and tremor Rapid fault healing from cementation controls the dynamics of deep slow slip and tremor
Despite its status as one of the most important discoveries in geophysics, the physical mechanism(s) responsible for slow slip events (SSEs) are not well understood. Here, we synthesize observations of deep SSEs in the Cascadia Subduction Zone and argue that rapid, cohesive fault strengthening may control the dynamics of deep SSEs. Cohesive strength is frequently ignored in constitutive...
Authors
Amanda M. Thomas, Jim M Watkins, Nicholas M. Beeler, Melodie French, Whitney M. Behr, Mark H. Reed
Technical note: A low-cost approach to monitoring relative streamflow dynamics in small headwater streams using time lapse imagery and a deep learning model Technical note: A low-cost approach to monitoring relative streamflow dynamics in small headwater streams using time lapse imagery and a deep learning model
Despite their ubiquity and importance as freshwater habitat, small headwater streams are under-monitored by existing stream gage networks. To address this gap, we describe a low-cost, non-contact, and low-effort method that enables organizations to monitor relative streamflow dynamics in small headwater streams. The method uses a camera to capture repeat images of the stream from a fixed...
Authors
Phillip J. Goodling, Jennifer H. Fair, Amrita Gupta, Jeffrey D. Walker, Todd Dubreuil, Michael J. Hayden, Benjamin H. Letcher
Revised length categories and standard weight equation for Northern Pikeminnow Revised length categories and standard weight equation for Northern Pikeminnow
Objective Length and weight indices (e.g., proportional size distribution, relative weight) provide standardized benchmarks that are useful for comparing groups of fish, identifying ecological interactions, and evaluating the effect of management actions. However, the current length categories and standard weight (Ws) equation for Northern Pikeminnow Ptychocheilus oregonensis, a species...
Authors
Nicholas S. Voss, Michael C. Quist
Searching for seismic precursors - The Barry Landslide hazard clean up Searching for seismic precursors - The Barry Landslide hazard clean up
The Barry Landslide, located in Barry Arm of Prince William Sound, Alaska, poses a major hazard due to its steep, unstable slopes and the potential for a massive landslide-generated tsunami. With an estimated volume of 500–700 million cubic meters, the Barry Landslide could trigger highly destructive waves. In this study, we focus on seismic signals from the Barry Landslide, which are...
Authors
Gabrielle K. Davies, Michael E. West, Ezgi Karasözen, John J. Lyons
Aridity reduces lag times between aquatic and terrestrial dry-down among watersheds and across years in the northwest US Aridity reduces lag times between aquatic and terrestrial dry-down among watersheds and across years in the northwest US
Landscapes encompass both aquatic and terrestrial ecosystems that experience the same climate but may respond to climate in divergent ways. For example, the time lag between seasonal dry-down of terrestrial soil moisture and decline in streamflow has important implications for species and ecosystem processes across the aquatic–terrestrial interface. How these lags between aquatic and...
Authors
Bradley J. Butterfield, Daniel Rodolphe Schlaepfer, Robert Al-Chokhachy, Jason Dunham, Jeremiah D. Groom, Clint C. Muhlfeld, Christian E. Torgersen, John B. Bradford
An inset groundwater-flow model to evaluate the effects of layering configuration on model calibration and assess managed aquifer recharge near Shellmound, Mississippi An inset groundwater-flow model to evaluate the effects of layering configuration on model calibration and assess managed aquifer recharge near Shellmound, Mississippi
The U.S. Geological Survey has developed a high-resolution inset groundwater-flow model in the Mississippi Delta as part of an interdisciplinary collaboration coordinated by the Mississippi Alluvial Plain project to provide a tool that stakeholders can use to support water-resource management decisions. Groundwater withdrawals from the Mississippi River Valley alluvial (MRVA) aquifer...
Authors
Moussa Guira, Jonathan P. Traylor, Andrew T. Leaf, Alec R. Weisser
Plate tectonics and volcanism in western California Plate tectonics and volcanism in western California
Introduction Western California is home to a variety of volcanic rocks. The locations, ages, and chemical compositions of these volcanic rocks help tell part of the fascinating story of California’s plate tectonic evolution over the past 40 million years. These volcanic rocks are a product of multiple tectonic processes, including subduction of divergent and transform plate boundaries...
Authors
Seth D. Burgess
Observational, virological, and serological data provide insights into an outbreak of highly pathogenic avian influenza among wild birds on the Yukon-Kuskokwim Delta, Alaska in 2022 Observational, virological, and serological data provide insights into an outbreak of highly pathogenic avian influenza among wild birds on the Yukon-Kuskokwim Delta, Alaska in 2022
In 2021–22, clade 2.3.4.4b highly pathogenic avian influenza (HPAI) viruses were introduced by wild birds into North America, leading to geographically widespread disease. In response to HPAI outbreaks throughout late 2021 and early 2022, we recorded observations of sick and dead birds, estimated abundance of carcasses, collected swab and sera samples to detect viruses, and monitored...
Authors
Bryan Daniels, Erik E. Osnas, Megan Boldenow, Robert Gerlach, Christina A. Ahlstrom, Sarah Coburn, Michael J. Brook, Michael Brubaker, Julian Fischer, David N. Koons, Angela Matz, Marin Murphy, Daniel Rizzolo, Laura Celeste Scott, David R. Sinnett, Jordan M. Thompson, Juliana Lenoch, Mia Kim Torchetti, David E. Stallknecht, Rebecca L. Poulson, Andrew M. Ramey
Phylogenomics of endangered troglobiotic rove beetles (Coleoptera: Staphylinidae: Pselaphinae) from central Texas karst regions Phylogenomics of endangered troglobiotic rove beetles (Coleoptera: Staphylinidae: Pselaphinae) from central Texas karst regions
The karst habitats of central Texas, USA, are home to an array of endemic subterranean-obligate (troglobiotic) invertebrates. This includes several species of rove beetles (Coleoptera: Staphylinidae: Pselaphinae). Here we developed a molecular dataset using sequence capture of Ultra-Conserved Elements (UCEs) from the Coleoptera-UCE-1.1 K v1 baits kit. These data were used to assess...
Authors
Perry L. Wood, Donald S. Chandler, Nicholas S. Gladstone, Anna Mitelberg, Julia G. Smith, Kemble White, Jenny Wilson, Amy G. Vandergast