Summary of data collected during field efficacy trials of florfenicol and oxytetracycline dihydrate in controlling mortality in walleye (Sander vitreus) because of motile Aeromonad infections
Christopher M. Merkes, Maren T. Tuttle-Lau, Susan M. Schleis, Aaron R. Cupp
2024, Open-File Report 2023-1056
Motile Aeromonad septicemia is a substantial concern during fish propagation and can be catastrophic for fish hatcheries. We tested the efficacy of two different drugs (florfenicol and oxytetracycline) offered with feed as possible treatment options to control mortality because of motile Aeromonad infection. We offered top-coated medicated feeds to hatchery-reared...
Global geologic map of Europa
Erin J. Leonard, D. Alex Patthoff, David A. Senske
2024, Scientific Investigations Map 3513
Discovered by Galileo Galilei more than 400 years ago and imaged in detail by the Voyager 2 Galileo spacecraft, Jupiter’s icy moon Europa has been a source of intrigue. A range of science investigations indicate that it contains the key ingredients for habitability, notably energy, chemistry, and liquid water. Europa’s...
A multi-sensor approach to characterize winter water-level drawdown patterns in lakes
Abhishek Kumar, Allison H. Roy, Konstantinos Andreadis, Xinchen He, Caitlyn Butler
2024, Remote Sensing (16)
Artificial manipulation of lake water levels through practices like winter water-level drawdown (WD) is prevalent across many regions, but the spatiotemporal patterns are not well documented due to limited in situ monitoring. Multi-sensor satellite remote sensing provides an opportunity to map and analyze drawdown frequency and metrics (timing, magnitude, duration)...
The influence of anthropogenic regulation and evaporite dissolution on earthquake-triggered ground failure
Paula Madeline Burgi, Eric M. Thompson, Kate E. Allstadt, Kyle Dennis Murray, Henry Mason, Sean Kamran Ahdi, Devin Katzenstein
2024, Nature Communications (15)
Remote sensing observations of Searles Lake following the 2019 moment magnitude 7.1 Ridgecrest, California, earthquake reveal an area where surface ejecta is...
Background seismic noise levels among the Caribbean network and the role of station proximity to coastline
Justin T. Wilgus, Adam T. Ringler, Brandon Schmandt, David C. Wilson, Robert Anthony
2024, Seismological Research Letters (95) 2141-2152
The amplitude and frequency content of background seismic noise is highly variable with geographic location. Understanding the characteristics and behavior of background seismic noise as a function of location can inform approaches to improve network performance and in turn increase earthquake detection capabilities....
Consumer isoscapes reveal heterogeneous food webs in deep-sea submarine canyons and adjacent slopes
Amanda Demopoulos, Brian J. Smith, Jill Bourque, Jason Chaytor, Jennifer McClain Counts, Nancy G. Prouty, Steve W. Ross, Sandra Brooke, Gerard Duineveld, Furu Mienis
2024, Progress in Oceanography (223)
The deep sea is the largest biome on earth, but one of the least studied despite its critical role in global carbon cycling and climate buffering. Deep-sea organisms largely rely on particulate organic matter from the surface ocean for energy –...
Deposited sediment influences occurrence of functional traits of stream fishes
Mallory Hirschler, Amy M. Villamagna, Paul L. Angermeier, Eric Laflamme
2024, Ecology of Freshwater Fish (33)
To better understand stream-fish sensitivity to fine sediment, we documented assemblage-wide responses by selected traits along a sedimentation gradient. We then discuss the management implications of these ‘dose–response’ relations in the contexts of biotic assessments and conservation of sediment-sensitive species. We identified a spatial gradient in sediment deposition among streams...
Predicting redox conditions in groundwater at a national scale using random forest classification
Anthony J. Tesoriero, Susan Wherry, Danielle Dupuy, Tyler D. Johnson
2024, Environmental Science and Technology (58) 5079-5092
Redox conditions in groundwater may markedly affect the fate and transport of nutrients, volatile organic compounds, and trace metals, with significant implications for human health. While many local assessments of redox conditions have been made, the spatial variability of redox reaction rates makes the determination of redox conditions at regional...
Diurnal habitat selection and survival of elk neonates
James W. Pitman, James W. Cain III, William R. Gould, Nicole M. Tatman, Stewart G. Liley
2024, Southwestern Naturalist (67) 205-215
Natural selection should favor development of behaviors that increase survival, including juvenile survival. Habitat characteristics (e.g., hiding cover, forage quality and availability), maternal habitat selection, and microhabitat selection by the calf may influence elk (Cervus canadensis) calf survival and recruitment. We assessed diurnal microhabitat selection of bed sites by elk...
Fine-resolution land cover mapping over large and mountainous areas for Lāna‘i, Hawaii using posterior probabilities, and expert knowledge
Lucas Berio Fortini, Qiuming Cheng, Yoko Uyehara, Kari Bogner, Jonathan Sprague, Rachel Sprague
2024, International Journal of Remote Sensing (45) 1949-1971
The task of accurately mapping species-specific vegetation cover in remote and topographically complex regions like those found in Hawaiʻi presents unique challenges. This study leverages a machine learning approach to accurately classify vegetation into fine species-specific classes across the island of Lāna‘i, Hawaii, offering a novel methodology for...
Making phase-picking neural networks more consistent and interpretable
Yongsoo Park, Brent G. Delbridge, David R. Shelly
2024, The Seismic Record (4) 72-80
Improving the interpretability of phase‐picking neural networks remains an important task to facilitate their deployment to routine, real‐time seismic monitoring. The popular phase‐picking neural networks published in the literature lack interpretability because their output prediction scores do not necessarily correspond with the reliability of phase picks and can even be...
Modeling protective action decision-making in earthquakes by using explainable machine learning and video data
Xiaojian Zhang, Xilei Zhao, Dare Baldwin, Sara K. McBride, Josephine Bellizzi, Elizabeth S. Cochran, Nicolas Luco, Matthew Wood, Thomas J. Cova
2024, Scientific Reports (14)
Earthquakes pose substantial threats to communities worldwide. Understanding how people respond to the fast-changing environment during earthquakes is crucial for reducing risks and saving lives. This study aims to study people’s protective action decision-making in earthquakes by leveraging explainable machine learning and video data. Specifically, this study first collected real-world...
Small forested watershed weathers effects of climate change better than a nearby urban watershed in Northern Virginia, USA
Aaron J. Porter, Karen C Rice
2024, Hydrological Processes (38)
South Fork Quantico Creek (SFQ; 19.8 square kilometre (km2), forested) and Fourmile Run (4MR; 32.4-km2, urban) are small watersheds in northern Virginia, United States. Precipitation and streamflow data for both watersheds were examined from water year (WY) 1952 through 2022. Temporal changes in hydrologic...
Integrative phylogenetic, phylogeographic and morphological characterisation of the Unio crassus species complex reveals cryptic diversity with important conservation implications
Manuel Lopes-Lima, Juergen Geist, Sarah Egg, Lubos Beran, Ani Bikashvili, Bert Van Bocxlaer, Arthur E. Bogan, Ivan N. Bolotov, O. A. Chelpanovskaya, Karel Douda, Vasco Fernandes, André Gomes-dos-Santos, Duarte V. Goncalves, Mustafa E. Gurlek, Nathan Johnson, Ioannis Karaouzas, Umit Kebapci, Alexander V. Kondakov, Ralph Kuehn, Jasna Lajtner, Levan Mumladze, Karl-Otto Nagel, Eike Neubert, Martin Osterling, John M. Pfeiffer, Vincent Prie, Nicoletta Riccardi, Jerzy Sell, Lea D. Schneider, Spase Shumka, Ioan Sirbu, Grita Skujiene, Chase H. Smith, Ronaldo Sousa, Katharina Stockl, Jouni Taskinen, Amílcar Teixeira, Milcho Todorov, Teodora Trichkova, Maria Urbanska, Santtu Valila, Simone Varandas, Joana Verissimo, Ilya V. Vikhrev, G. Woschitz, Katarzyna Zajac, Tadeusz Zajac, David T. Zanatta, Alexandra Zieritz, Stamatis Zogaris, Elsa Froufe
2024, Molecular Phylogenetics and Evolution (195)
The global decline of freshwater mussels and their crucial ecological services highlight the need to understand their phylogeny, phylogeography and patterns of genetic diversity to guide conservation efforts. Such knowledge is urgently needed for Unio crassus, a highly imperilled species originally widespread throughout Europe and southwest...
Potential use of poultry farms by wild waterfowl in California's Central Valley varies across space, times of day, and species: implications for influenza transmission risk
Claire S. Teitelbaum, Michael L. Casazza, Cory T. Overton, Jeffery D. Sullivan, Elliott Matchett, Fiona McDuie, Austen Lorenz, Joshua T. Ackerman, Susan E.W. De La Cruz, Diann J. Prosser
2024, Ecosphere (2024)
Interactions between wildlife and livestock can lead to cross-species disease transmission, which incurs economic costs and threatens wildlife conservation. Wild waterfowl are natural hosts of avian influenza viruses (AIVs), are often abundant near poultry farms, and have been linked to outbreaks of AIVs in...
Exploring landscape and geologic controls on spatial patterning of streambank groundwater discharge in a mixed land use watershed
Kevin E. Jackson, Eric M. Moore, Ashley M. Helton, Adam B. Haynes, Janet R. Barclay, Martin A. Briggs
2024, Hydrological Processes (38)
Preferential groundwater discharge features along stream corridors are ecologically important at local and stream network scales, yet we lack quantification of the multiscale controls on the spatial patterning of groundwater discharge. Here we identify physical attributes that best explain variation in the presence and...
Molecular sexing of birds using quantitative PCR (qPCR) of sex-linked genes and logistic regression models
Eleni Leto Petrou, Laura Celeste Scott, Cherie Marie Mckeeman, Andrew M. Ramey
2024, Molecular Ecology Resources (24)
The ability to sex individuals is an important component of many behavioural and ecological investigations and provides information for demographic models used in conservation and species management. However, many birds are difficult to sex using morphological characters or traditional molecular sexing methods. In this...
Seasonal and decadal subsurface thaw dynamics of an Aufeis feature investigated through numerical simulations
Alexi Lainis, Roseanna M. Neupauer, Joshua C. Koch, Michael Gooseff
2024, Hydrological Processes (38)
Aufeis (also known as icings) are large sheet-like masses of layered ice that form in river channels in arctic environments in the winter as groundwater discharges to the land surface and subsequently freezes. Aufeis are important sources of water for Arctic river ecosystems, bolstering late...
The post-emergence period for denning polar bears: Phenology and influence on cub survival
Erik Andersen, Ryan R. Wilson, Karyn D. Rode, George M. Durner, Todd C. Atwood, David Gustine
2024, Journal of Mammalogy
Among polar bears (Ursus maritimus), only parturient females den for extended periods, emerging from maternal dens in spring after having substantially depleted their energy reserves during a fast that can exceed 8 months. Although den emergence coincides with a period of increasing prey availability, polar bears typically do not...
Characterization of change in tree cover state and condition over the conterminous United States
Francis K Dwomoh, Roger F. Auch
2024, Forests (15)
Variability in the effects of disturbances and extreme climate events can lead to changes in tree cover over time, including partial or complete loss, with diverse ecological consequences. It is therefore critical to identify in space and time the change processes that lead to tree cover change. Studies of...
Summary of annual repeat magnetotelluric surveys of the Geysers geothermal field
Jared R. Peacock, David Alumbaugh, Michael Albert Mitchell, C. Hartline
2024, Conference Paper
As part of a multi-year project, funded by the California Energy Commission, annual magnetotelluric (MT) surveys have been collected at The Geysers geothermal field in northern California with the goal of measuring temporal changes within the steam field. The repeat surveys started in 2021 and repeated a 2017 survey (Peacock...
Delta blue(green)s: The effect of drought and drought-management actions on microcystis in the Sacramento–San Joaquin Delta
Keith Bouma-Gregson, David Bosworth, Theodore M. Flynn, Amanda Maguire, Jenna Rinde, Rosemary Hartman
2024, San Francisco Estuary and Watershed Science (22)
Cyanobacterial phytoplankton blooms are more prevalent in the freshwater Sacramento-San Joaquin Delta (Delta) since the late 1990s, including blooms driven by overgrowths of potentially toxigenic organisms of the genus Microcystis. Data from 2014 to 2021 were used to show how flow dynamics, water temperature, and water clarity drive occurrence of Microcystis. We...
Second guessing the maximum likelihood estimator values for bat surveys
W. Mark Ford, Jesse L. De La Cruz, Emily D. Thorne, Alexander Silvis, Michael P. Armstrong, R. Andrew King
2024, Journal of the Southeastern Association of Fish and Wildlife Agencies (11) 177-184
TThe U.S. Fish and Wildlife Service allows acoustical surveys and automated identification software to determine the presence of the endangered northern long-eared bat (Myotis septentrionalis) and Indiana bat (Myotis sodalis). Analytical software is required to assess presence probability on a site-night basis using a maximum likelihood estimator (MLE) that accounts...
Second guessing the maximum likelihood estimator values for bat surveys.
W. Mark Ford, Jesse L. De La Cruz, Emily D. Thorne, Alexander Silvis, Michael P. Armstrong, R. Andrew King
2024, Journal of the Southeastern Association of Fish and Wildlife Agencies (11) 177-184
The U.S. Fish and Wildlife Service allows acoustical surveys and automated identification software to determine the presence of the endangered northern long-eared bat (Myotis septentrionalis) and Indiana bat (Myotis sodalis). Analytical software is required to assess presence probability on a site-night basis using a maximum likelihood estimator (MLE) that accounts...
Surface elevation trends in North Carolina's coastal wetlands
Robbie Fearn, Cat Bowler, Rick Savage, Pat Donovoan-Bradenburg, Aaron Houran, Reide Corbett, Stu Hamilton, Carolyn Currin, Jenny Davis, Michael Greene, Anna Hilting, Brandon Puckett, Quentin Walker, Justin Ridge, Cayla Cothron, Sarah Spiegler, Marcelo Ardón, Mike Burchell, Nisse Goldberg, Aaron McCall, Eric Soderholm, Christine Voss, Lorie Sutter, Michelle Moorman, Justine Annaliese Neville, Ches Vervaeke
2024, Report
Coastal wetlands exist in the narrow fringe between uplands and open water and consequently, are uniquely vulnerable to the impacts of sea level rise (SLR). Predictive models suggest that in the coming decades sea level rise will lead to substantial losses of coastal wetland habitat in North Carolina. Empirical measurements...
