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Back-azimuth estimation of air-to-ground coupled infrasound from transverse coherence minimization Back-azimuth estimation of air-to-ground coupled infrasound from transverse coherence minimization
We present the transverse coherence minimization method (TCM)—an approach to estimate the back-azimuth of infrasound signals that are recorded on an infrasound microphone and a colocated three-component seismometer. Accurate back-azimuth information is important for a variety of monitoring efforts, but it is currently only available for infrasound arrays and for seismoacoustic sensor...
Authors
Jordan Bishop, Matthew M. Haney, David Fee, Robin Matoza, Kathleen McKee, John J. Lyons
Sound and sturgeon: Bioacoustics and anthropogenic sound Sound and sturgeon: Bioacoustics and anthropogenic sound
Sturgeons are basal bony fishes, most species of which are considered threatened and/or endangered. Like all fishes, sturgeons use hearing to learn about their environment and perhaps communicate with conspecifics, as in mating. Thus, anything that impacts the ability of sturgeon to hear biologically important sounds could impact fitness and survival of individuals and populations. There...
Authors
Arthur N. Popper, Robin D. Calfee
One byte at a time: Gathering best practices, guidelines, and resources for data standards to support ocean exploration and characterization One byte at a time: Gathering best practices, guidelines, and resources for data standards to support ocean exploration and characterization
Initiated through Presidential direction and now codified, the National Ocean Mapping, Exploration, and Characterization (NOMEC) Council comprises leaders from U.S. federal agencies with a shared goal of mapping all waters of the United States and exploring and characterizing priority areas. The NOMEC Council’s two Interagency Working Groups, Ocean and Coastal Mapping (IWG-OCM) and Ocean
Authors
Kasey Cantwell, Amanda Demopoulos, Mitchell G. Hebner, Rachel Medley, Mark Mueller, Amanda N. Netburn
Differing field methods and site conditions lead to varying bias in suspended sediment concentrations in the Lower Mississippi and Atchafalaya Rivers Differing field methods and site conditions lead to varying bias in suspended sediment concentrations in the Lower Mississippi and Atchafalaya Rivers
At sites that have been sampled for decades, changes in field and laboratory methods happen over time as instrumentation and protocols improve. Here, we compare the influence of depth- and point-integrated sampling on total, fine (
Authors
Jennifer C. Murphy, Lindsey Ayn Schafer, Scott Mize
The inevitability of large shallow craters on Callisto and Ganymede: Implications for crater depth-diameter trends The inevitability of large shallow craters on Callisto and Ganymede: Implications for crater depth-diameter trends
Complex craters with diameters (D) ≥ 40 km on Callisto and Ganymede are shallower than would be expected from simply extrapolating the depth-diameter trend from smaller (D ≤ 40 km) craters. This unusual depth-diameter (d-D) trend, and associated changes in crater morphology, have been hypothesized to result from rheological transitions, including the existence of an ocean, within the...
Authors
Michael T. Bland, Veronica Bray
Limited hybridisation and introgression despite stocking among endemic Interior Highlands black basses (Centrarchidae: Micropterus) Limited hybridisation and introgression despite stocking among endemic Interior Highlands black basses (Centrarchidae: Micropterus)
Aim: Smallmouth Bass (Micropterus dolomieu; SMB) are globally popular among anglers and have been widely introduced (i.e. stocked) for population management and sportfishing. Importantly, stocking was prevalent before cryptic diversity within the SMB complex was known, which now includes three newly elevated species: Neosho Bass (M. velox; NB), Little River Bass (M. sp. cf. dolomieu...
Authors
Joe C. Gunn, Andrew T. Taylor, Jeff J. Buckingham, Aaron I. Kern, James M. Long
Wherever I may roam—Human activity alters movements of red deer (Cervus elaphus) and elk (Cervus canadensis) across two continents Wherever I may roam—Human activity alters movements of red deer (Cervus elaphus) and elk (Cervus canadensis) across two continents
Human activity and associated landscape modifications alter the movements of animals with consequences for populations and ecosystems worldwide. Species performing long-distance movements are thought to be particularly sensitive to human impact. Despite the increasing anthropogenic pressure, it remains challenging to understand and predict animals' responses to human activity. Here we...
Authors
Steffen Mumme, Arthur D. Middleton, Paolo Ciucci, Johannes De Groeve, Andrea Corradini, Federico Ossi, Paul Atwood, Niko Balkenhol, Eric K. Cole, Lucie Debeffe, Sarah R. Dewey, Claude Fischer, Justin Gude, Marco Heurich, Mark A. Hurley, Anders Jarnemo, Matthew J. Kauffman, Alain Licoppe, Emiel van Loon, Doug McWhirter, Tony Mong, Luca Pedrotti, Nicolas Morellet, Atle Mysterud, Wibke Peters, Kelly Proffitt, Sonia Saïd, Johannes Signer, Peter Sunde, Martin Stary, Francesca Cagnacci
Microgravity as a tool for eruption forecasting Microgravity as a tool for eruption forecasting
Detection of gravity change over time has been used to better understand magmatic activity at volcanoes for decades, but the technique is not commonly applied to forecasting eruptions. In contrast, other tools, notably seismic, deformation, and gas monitoring have made exceptional strides in the past several decades and form the foundation for eruption forecasting, especially during the...
Authors
Elske de Zeeuw-van Dalfsen, Michael P. Poland
Women in wildlife science: Building equity, diversity, and inclusion Women in wildlife science: Building equity, diversity, and inclusion
No abstract available.
Authors
Toni Lyn Morelli, Jahiya Clark
Genetic structure across isolated Virginia populations of the endangered candy darter (Etheostoma osburni) Genetic structure across isolated Virginia populations of the endangered candy darter (Etheostoma osburni)
Candy darter Etheostoma osburni, a federally endangered non-game fish, has been extirpated from most of its historic range in Virginia and now occurs in four isolated populations in the New River drainage. Understanding of population genetic structure will provide insights into the recent natural history of the species and can inform conservation management. Our objectives were to...
Authors
Kathyrn E. McBaine, Paul L. Angermeier, Eric M. Hallerman
Water-soluble organic carbon release from mineral soils and sediments in an irrigated agricultural system Water-soluble organic carbon release from mineral soils and sediments in an irrigated agricultural system
Water interactions with soil and vegetation are greatly altered in agricultural watersheds compared to natural landscapes, which impacts sources and fates of organic carbon (OC). While mineral soil horizons in natural ecosystems primarily act as filters for dissolved organic carbon (DOC) leached from organic surface horizons, tilled soils largely lack an organic horizon and their mineral...
Authors
Sandrine J. Matiasek, Brian A. Pellerin, Robert G. Spencer, Brian A. Bergamaschi, Peter J. Hernes
Spatially and temporally variable production pathways support the Lake Erie central basin food web Spatially and temporally variable production pathways support the Lake Erie central basin food web
In large freshwater systems, the dominant production pathways supporting food webs are often spatiotemporally variable. We used stable isotope analysis and analysis of covariance (ANCOVA) models to investigate spatial and interannual variation in the dominant production pathways supporting fish consumers within the central basin of Lake Erie. We examined C and N stable isotope ratios of
Authors
Joshua M. Tellier, Tomas O. Höök, Richard Kraus, Paris D. Collingsworth