Estimating streambed hydraulic conductivity for selected streams in the Mississippi Alluvial Plain using continuous resistivity profiling methods—Delta region
Ryan F. Adams, Benjamin Miller, Wade H. Kress, Burke J. Minsley, James R. Rigby
2023, Scientific Investigations Map 3500
Introduction The Mississippi Alluvial Plain is one of the most important agricultural regions in the United States, and crop productivity relies on groundwater irrigation from an aquifer system whose full capacity is unknown. Groundwater withdrawals from the Mississippi River Valley alluvial aquifer have resulted in substantial groundwater-level declines and reductions...
Boreal conifers maintain carbon uptake with warming despite failure to track optimal temperatures
Mirindi E. Dusenge, Jeffery M. Warren, Peter B. Reich, Eric Ward, Bridget K. Murphy, Artur Stefanski, Raimundo Bermudez, Marisol Cruz, David A. McLennan, Anthony W. King, Rebecca A. Montgomery, Paul J. Hanson, Danielle A. Way
2023, Nature Communciations (14)
Warming shifts the thermal optimum of net photosynthesis (ToptA) to higher temperatures. However, our knowledge of this shift is mainly derived from seedlings grown in greenhouses under ambient atmospheric carbon dioxide (CO2) conditions. It is unclear whether shifts in ToptA of field-grown trees will keep pace with the temperatures predicted for the...
Urban stream restorations increase floodplain soil carbon and nutrient retention along a chronosequence
Katrina Nicole Napora, Gregory E. Noe, Changwoo Ahn, Meghan Q.N. Fellows
2023, Ecological Engineering (195)
Stream restoration is a common management practice to meet regulatory or voluntary efforts to improve water quality via nutrient and carbon (C) retention, including in the Chesapeake Bay watershed. However, most restoration projects have few quantifiable measures of project success, no standard metrics, and rarely collect pre-restoration data. Storage of...
Scaling microseismic cloud shape during hydraulic stimulation using in-situ stress and permeability
Y. Mukuhira, M. Yang, T. Ishibashi, K. Okamoto, H. Moriya, Y. Kumano, H. Asanuma, S.A. Shapiro, Justin Rubinstein, T. Ito, K. Yan, Y. Zuo
2023, JGR Solid Earth (128)
Forecasting microseismic cloud shape as a proxy of stimulated rock volume may improve the design of an energy extraction system. The microseismic cloud created during hydraulic stimulation of geothermal reservoirs is known empirically to extend in the general direction of the maximum principal stress. However, this empirical relationship is often...
Development and application of a qPCR-based genotyping assay for Ophidiomyces ophidiicola to investigate the epidemiology of ophidiomycosis
Ellen Haynes, Jeffrey M. Lorch, Matthew C. Allender
2023, PLoS ONE (18)
Ophidiomycosis (snake fungal disease) is an infectious disease caused by the fungus Ophidiomyces ophidiicola to which all snake species appear to be susceptible. Significant variation has been observed in clinical presentation, progression of disease, and response to treatment, which may be due to genetic variation in the causative agent. Recent phylogenetic analysis...
The 2018 eruption of Kīlauea: Insights, puzzles, and opportunities for volcano science
Kyle R. Anderson, Tom Shea, Kendra J. Lynn, Emily K. Montgomery-Brown, Donald A. Swanson, Matthew R. Patrick, Brian Shiro, Christina A. Neal
2023, Annual Review of Earth and Planetary Sciences (52) 1.1-1.39
The science of volcanology advances disproportionately during exceptionally large or well-observed eruptions. The 2018 eruption of Kīlauea Volcano (Hawai‘i) was its most impactful in centuries, involving an outpouring of more than one cubic kilometer of basalt, a magnitude 7 flank earthquake, and the volcano’s largest summit collapse since at least...
Acoustic ducting by shelf water streamers at the New England shelfbreak
Jennifer J. Johnson, Ying-Tsong Lin, Arthur E. Newhall, Glen G. Gawarkiewicz, David P. Knobles, Jason Chaytor, William S.. Hodgkiss
2023, Journal of the Acoustical Society of America (3)
Greater sound speed variability has been observed at the New England shelfbreak due to a greater influence from the Gulf Stream with increased meander amplitudes and frequency of Warm Core Ring (WCR) generation. Consequently, underwater sound propagation in the area also becomes more variable. This paper presents field observations of...
Tracking carbon from subduction to outgassing along the Aleutian-Alaska Volcanic Arc
Taryn Lopez, Tobias P. Fischer, Terry Plank, Alberto Malinverno, Andrea Rizzo, Daniel J. Rasmussen, Elizabeth Cottrell, Cynthia Werner, Christoph Kern, Deborah Bergfeld, Tehnuka Ilanko, Janine L. Andrys, Katherine A. Kelley
2023, Science Advances (9)
Subduction transports volatiles between Earth’s mantle, crust, and atmosphere, ultimately creating a habitable Earth. We use isotopes to track carbon from subduction to outgassing along the Aleutian-Alaska Arc. We find substantial along-strike variations in the isotopic composition of volcanic gases, explained by different recycling efficiencies of subducting carbon to the...
Converted-wave reverse time migration imaging in subduction zone settings
Leah Langer, Frederick Pollitz, Jeffrey J. McGuire
2023, Geophysical Journal International (235) 1384-1402
We use a newly developed 2-D elastic reverse time migration (RTM) imaging algorithm based on the Helmholtz decomposition to test approaches for imaging the descending slab in subduction zone regions using local earthquake sources. Our elastic RTM method is designed to reconstruct incident and scattered wavefields at depth, isolate...
Long short-term memory models to quantify long-term evolution of streamflow discharge and groundwater depth in Alabama
Hossein Gholizadeh, Yong Zhang, Jonathan Frame, Xiufen Gu, Christopher Green
2023, Science of the Total Environment (901)
Long short-term memory (LSTM) models have been shown to be efficient for rainfall-runoff modeling, and to a lesser extent, for groundwater depth forecasting. In this study, LSTMs were applied to quantify the spatiotemporal evolution of surface and subsurface hydrographs in Alabama in the Southeastern United States,...
Resilience of riparian vegetation productivity to early 21st century drought in northern California, USA
Paul Selmants, Caroline Rose Conrad, Tamara Wilson, Miguel L. Villarreal
2023, Ecosphere (14)
Drought and intensive land use can interact as stressors on riparian vegetation, especially along rivers flowing through seasonally dry landscapes. Knowledge of past riparian vegetation response to drought and land use change can provide land managers with a better understanding of changes induced by...
Biophysical factors control invasive annual grass hot spots in the Mojave Desert
Tanner Corless Smith, Tara B.B. Bishop, Michael C. Duniway, Miguel L. Villarreal, Anna C. Knight, Seth M. Munson, Eric K. Waller, Ryan Jensen, Richard A. Gill
2023, Biological Invasions (25) 3839-3859
Invasive annual grasses can promote ecosystem state changes and habitat loss in the American Southwest. Non-native annual grasses such as Bromus spp. and Schismus spp. have invaded the Mojave Desert and degraded habitat through increased fire occurrence, severity, and shifting plant community composition. Thus, it is important to identify and...
Toxic algae in inland waters of the conterminous United States—A review and synthesis
Reynaldo Patino, Victoria Christensen, Jennifer L. Graham, Jane S. Rogosch, Barry H. Rosen
2023, Water (15)
Cyanobacteria are the most common toxigenic algae in inland waters. Their toxins can affect the health of aquatic and terrestrial organisms, including humans. Other algal groups, such as haptophytes (e.g., Prymnesium parvum) and euglenoids (e.g., Euglena sanguinea), can also form harmful algal blooms (HABs) whose toxins cause injury to...
Potassium-39-derived 36Ar production during fission-neutron irradiation and its effect on 40Ar/39Ar ages
Jack N. Carter, Paul R. Renne, Leah E. Morgan
2023, Geochimica et Cosmochimica Acta (357) 26-34
Various interference reactions producing unwanted Ar isotopes from K, Ca, Cl and Ar require correction to satisfy the 40Ar/39Ar age equation. Using GEANT4, we design and build a model Cadmium Lined In Core Irradiation Tube (CLICIT) irradiation facility, as used in the...
A seasonally ice-free Arctic Ocean during the Last Interglacial
Flor Vermassen, Matt O’Regan, Agatha de Boer, Freederik Schenk, Mohammad Razmjooei, Gabriel West, Thomas M. Cronin, Martin Jakobsson, Helen Coxall
2023, Nature Geoscience (16) 723-729
The extent and seasonality of Arctic sea ice during the Last Interglacial (129,000 to 115,000 years before present) is poorly known. Sediment-based reconstructions have suggested extensive ice cover in summer, while climate model outputs indicate year-round conditions in the Arctic Ocean ranging from ice free to...
H5N1 highly pathogenic avian influenza clade 2.3.4.4b in wild and domestic birds: Introductions into the United States and reassortments, December 2021–April 2022
Sungsu Youk, Mia Kim Torchetti, Kristina Lantz, Julianna B. Lenoch, Mary Lea Killian, Christina Leyson, Sarah N. Bevins, Krista Dilione, Hon S. Ip, David E. Stallknecht, Rebecca L. Poulson, David L. Suarez, David E. Swayne, Mary J. Pantin-Jackwood
2023, Virology (587)
Highly pathogenic avian influenza viruses (HPAIVs) of the A/goose/Guangdong/1/1996 lineage H5 clade 2.3.4.4b continue to have a devastating effect on domestic and wild birds. Full genome sequence analyses using 1369 H5N1 HPAIVs detected in the United States (U.S.) in wild...
Evidence of population-level impacts and resiliency for Gulf of Mexico shelf taxa following the Deepwater Horizon oil spill
W.F. Patterson, K.L. Robinson, B.K. Barnett, M. Campbell, D.C. Chagaris, J. P. Chanton, K. Daly, D. Hanisko, F. Hernandez, S.A. Murawski, A.G. Pollock, D. Portnoy, Erin L. Pulster
2023, Frontiers in Marine Science (10)
The goal of this paper was to review the evidence of population-level impacts of the Deepwater Horizon Oil Spill (DWH) on Gulf of Mexico (GOM) continental shelf taxa, as well as evidence of resiliency following the DWH. There is considerable environmental and biological evidence that GOM shelf taxa were exposed to...
The persistence of time: The lifespan of Bacillus anthracis spores in environmental reservoirs
Zoe R. Barandongo, Amelie C. Dolfi, Spencer A. Bruce, Kristyna Rysava, Yen-Hua Huang, Hendrina Joel, Ayesha Hassim, Pauline L. Kamath, Henriette van Heerden, Wendy Christine Turner
2023, Research in Microbiology (174)
Anthrax is a lethal bacterial zoonosis primarily affecting herbivorous wildlife and livestock. Upon host death Bacillus anthracis vegetative cells form spores capable of surviving for years in soil. Anthrax transmission requires host exposure to large spore doses. Thus, conditions that facilitate higher spore concentrations or promote spore survival will increase...
Geomorphometric analysis of the Summit and Ridge classes of the Geographic Names Information System
Sinha Gaurav, Samantha Arundel, Romim Somadder, David P. Martin, Kevin G McKeehan
2023, Conference Paper, Geomorphometry 2023 proceedings
This research aims to conduct a geosemantic comparison of landforms classified in the Summit and Ridge feature classes in the Geographic Names Information System (GNIS). The comparison is based on a 2D shape analysis of manually delineated polygons produced by USGS staff to correspond to 33,304 Summit and 8,006 Ridge...
Geologic and geophysical maps of the Stockton 30’ × 60’ quadrangle, California
M. P. Delattre, Russell W. Graymer, Victoria Langenheim, Keith L. Knudsen, T. E. Dawson, Earl E. Brabb, Carl M. Wentworth, Loren A. Raymond
2023, Report
This pamphlet and accompanying geologic and geophysical maps are the products of cooperative efforts by the California Geological Survey (CGS) and United States Geological Survey (USGS) to compile a comprehensive, digital representation of the bedrock geology, Quaternary surficial deposits, and potential-field anomalies within the boundaries of the Stockton 30’ ×...
Illegal shooting is now a leading cause of death of birds along power lines in the western USA
Eve C. Thomason, Natalie J.S. Turley, James R. Belthoff, Tara Conkling, Todd E. Katzner
2023, iScience (26)
Human actions, both legal and illegal, affect wildlife in many ways. Inaccurate diagnosis of cause of death undermines law enforcement, management, threat assessment, and mitigation. We found 410 dead birds collected along 196 km of power lines in four western USA states during 2019 – 2022. We necropsied these carcasses...
Contemporary record and photographs of the rarely seen and poorly known Mona Blindsnake, Antillotyphlops monensis (Schmidt, 1926), with comments on its ecology and conservation
Danielle Rivera, Jan P. Zegarra, Cielo E. Figuerola-Hernandez, Nahira Arocho-Hernandez, Nathan J. Hostetter, Jaime A. Collazo, Rayna C. Bell
2023, Herpetology Notes (16) 915-918
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Bayesian spatio-temporal survival analysis for all types of censoring with application to a wildlife disease study
Kehui Yao, Jun Zhu, Daniel J. O'Brien, Daniel P. Walsh
2023, Environmetrics (34)
In this article, we consider modeling arbitrarily censored survival data with spatio-temporal covariates. We demonstrate that under the piecewise constant hazard function, the likelihood for uncensored or right-censored subjects is proportional to the likelihood of multiple conditionally independent Poisson random variables. To address left- or interval-censored subjects, we propose to...
Sacramento River nutrient change study
Lisa Thompson, Timothy D. Mussen, Michael Cook, Justin Nordin, James Noss, Ursula Bigler, Srividhya Ramamoorthy, Gry Mine Berg, Sara Driscoll, Clifton Herrmann, Wim J. Kimmerer, Toni Ignoffo, Tamara E. C. Kraus, Joseph K. Fackrell, Brian Bergamaschi, Marianne Guerin, Richard Rachiele
2023, Report
The Sacramento River Nutrient Change Study (SRiNCS) was developed with input from multiple stakeholders in the Delta Regional Monitoring Program, as well as the State Water Contractors. We tracked the effects of changes in nutrient loading resulting from a short-term wastewater hold at the Sacramento River Wastewater Treatment Plant (SRWTP)....
Understanding drivers of mercury in lake trout (Salvelinus namaycush), a top-predator fish in southwest Alaska's parklands
Krista K. Bartz, Michael P. Hannam, Tammy L. Wilson, Ryan F. Lepak, Jacob M. Ogorek, Daniel B. Young, Collin A. Eagles-Smith, David P. Krabbenhoft
2023, Environmental Pollution (330)
Mercury (Hg) is a widespread element and persistent pollutant, harmful to fish, wildlife, and humans in its organic, methylated form. The risk of Hg contamination is driven by factors that regulate Hg loading, methylation, bioaccumulation, and biomagnification. In remote locations, with infrequent access and limited data, understanding the relative importance...
