Coordination of planetary coordinate system recommendations by the IAU Working Group on Cartographic Coordinates and Rotational Elements–2020 status and future
Brent A. Archinal, C. H. Acton, A. Conrad, T. Duxbury, D. Hestroffer, J. L. Hilton, L. Jorda, Randolph L. Kirk, S. A. Klioner, J.-L. Margot, J. Oberst, F. Paganelli, J. Ping, K. Seidelmann, D. J. Tholen, I. P. Williams
2020, Conference Paper, International Society for Photogrammetry and Remote Sensing Congress Proceedings
Our goal is to request input from the lunar and planetary community regarding issues of planetary coordinate systems and cartography standards. We begin with an overview of the work of the International Astronomical Union Working Group on Cartographic Coordinates and Rotational Elements. We briefly describe the operations and membership of...
Lake sturgeon (Acipenser fulvescens) spawn in the St. Marys River Rapids, Michigan
Edward F. Roseman, Eric John Adams, Robin L. DeBruyne, J. Gostiaux, H. Harrington, K. Kapuscinski, A. Moerke, C. Olds
2020, Journal of Great Lakes Research (46) 1479-1484
The St. Marys River connects Lake Superior to Lake Huron, comprising the international border between Michigan, United States, and Ontario, Canada. This Great Lakes connecting channel naturally encompasses various habitats including lakes, wetlands, islands, tributaries, side channels, and main channels. The St. Marys River Rapids are shallow rock areas with...
Procedures for developing multi-period response spectra at non-conterminous United States sites
Mai Tong, Robert D. Hanson, Charles A Kircher, Sanaz Rezaeian, Nico Luco
2020, Report
This study complements proposals to the Provisions Update Committee of the Building Seismic Safety Council that would incorporate multi-period response spectra (MPRS) in the 2020 edition of the NEHRP Recommended Seismic Provisions for New Buildings and Other Structures (2020 NEHRP Provisions) and related proposals to the ASCE 7-22 Seismic Subcommittee...
Distribution of niclosamide following granular Bayer applications in lentic environments
Jeffry Bernardy, Cheryl Kaye, Nicholas Schloesser, Justin Schueller
2020, Report
Temporal and spatial distribution of niclosamide in the water column and sediment were evaluated after the application of granular Bayluscide in six lentic sea lamprey (Petromyzon marinus) larval assessment plots. Water and sediment were collected 0.25, 1, 3, 5, and 7 hours after application and were analyzed for niclosamide, the...
Spatiotemporal variation in occurrence and co-occurrence of pesticides, hormones, and other organic contaminants in rivers in the Chesapeake Bay Watershed, United States
Catherine M. McClure, Kelly Smalling, Vicki S. Blazer, Adam Sperry, Megan K. Schall, Dana W. Kolpin, Patrick J. Phillips, Michelle Hladik, Tyler Wagner
Damia Barcelo, editor(s)
2020, Science of the Total Environment (728) 1-13
Investigating the spatiotemporal dynamics of contaminants in surface water is crucial to better understand how introduced chemicals are interacting with and potentially influencing aquatic organisms and environments. Within the Chesapeake Bay Watershed, USA, there are concerns about the potential role of contaminant exposure on fish health. Evidence suggests that exposure...
A trapping survey targeting head-started alligator snapping turtles in southwest Louisiana
Brad Glorioso, Lindy J. Muse, Cory J Hillard, Brittany R. Maldonado, Jared Streeter, Charles D Battaglia, J. Hardin Waddle
2020, Journal of Fish and Wildlife Management (11) 572-582
The alligator snapping turtle Macrochelys temminckii is the largest freshwater turtle in North America and is sought after as a food source, primarily in Louisiana. Decades of intensive commercial harvest of alligator snapping turtles has been implicated in population declines. The Louisiana Department of Wildlife and Fisheries initiated a head-start...
Dual clumped isotope thermometry resolves kinetic biases in carbonate formation temperatures
David Bajnai, Weifu Guo, Christoph Spotl, Tyler B. Coplen, Katharina Methner, Niklas Loffler, Emilija Krsnik, Eberhard Gischler, Maximilian Hansen, Daniela Henkel, Gregory D. Price, Jacek Raddatz, Denis Scholz, Jens Fiebig
2020, Nature Communications (11)
Surface temperature is a fundamental parameter of Earth’s climate. Its evolution through time is commonly reconstructed using the oxygen isotope and the clumped isotope compositions of carbonate archives. However, reaction kinetics involved in the precipitation of carbonates can introduce inaccuracies in the derived temperatures. Here, we show that dual clumped...
A fishery after the decline: The Susquehanna River Smallmouth Bass story
Megan K. Schall, Geoffrey D. Smith, Vicki S. Blazer, Heather L. Walsh, Yan Li, Tyler Wagner
2020, Fisheries Magazine (45) 576-584
The Smallmouth Bass Micropterus dolomieu fishery in the Susquehanna River basin, Pennsylvania, is one of the most socioeconomically important fisheries in the region and has recently undergone considerable changes. These changes started in 2005, when disease was documented in young-of-the-year (age-0) Smallmouth Bass. Shortly thereafter, declines in abundance of both juveniles and...
A global parasite conservation plan
Colin J. Carlson, Skylar R. Hopkins, Kayce C Bell, Jorge Dona, Stephanie S Godfrey, Mackenzie L Kwak, Kevin D. Lafferty, Melinda L Moir, Kelly A Speer, Giovanni Strona, Mark Torchin, Chelsea L. Wood
2020, Biological Conservation (250)
Found throughout the tree of life and in every ecosystem, parasites are some of the most diverse, ecologically important animals on Earth—but in almost all cases, the least protected by wildlife or ecosystem conservation efforts. For decades, ecologists have been calling for research to understand parasites' important ecological role, and...
Three-dimensional shape and structure of the Susitna basin, south-central Alaska, from geophysical data
Anjana K. Shah, Jeffrey Phillips, Kristen A. Lewis, Richard G. Stanley, Peter J. Haeussler, Christopher J. Potter
2020, Geosphere (16) 969-990
We use gravity, magnetic, seismic reflection, well, and outcrop data to determine the three-dimensional shape and structural features of south-central Alaska’s Susitna basin. This basin is located within the Aleutian-Alaskan convergent margin region and is expected to show effects of regional subduction zone processes. Aeromagnetic data, when filtered to highlight...
Genomes reveal genetic diversity of Piscine orthoreovirus in farmed and free-ranging salmonids from Canada and USA
Ahmed Siah, B. R. Breyta, K. I. Warheit, N Gagne, Maureen K. Purcell, Diane B. Morrison, J. F. F. Powell, S. C. Johnson
2020, Virus Evolution (6)
Piscine orthoreovirus (PRV-1) is a segmented RNA virus which is commonly found in salmonids in the Atlantic and Pacific Oceans. PRV-1 causes the Heart and Skeletal Muscle Inflammation (HSMI) disease in Atlantic salmon and is associated with several other disease conditions. Previous phylogenetic studies of genome segment 1 (S1) identified...
Incipient bed-movement and flood-frequency analysis using hydrophones to estimate flushing flows on the upper Colorado River, Colorado, 2019
Michael S. Kohn, Mathieu D. Marineau, Laura A. Hempel, Richard R. McDonald
2020, Scientific Investigations Report 2020-5069
In 2019, the U.S. Geological Survey, in cooperation with the Upper Colorado River Wild and Scenic Stakeholder Group, studied the magnitude and recurrence interval of streamflow (discharge) needed to initiate bed movement of gravel-sized and finer sediment in a segment of the Colorado River in Colorado to better understand sediment...
Genomic identification of intergeneric hybrids in New World wood-warblers (Aves: Parulidae)
David P. L. Toews, Gunnar R. Kramer, Andrew W. Jones, Courtney L. Brennan, Benjamin E. Cloud, David E. Andersen, Irby J. Lovette, Henry Streby
2020, Biological Journal of the Linnean Society (131) 183-191
The documentation of hybrids between distantly related taxa can illustrate an initial step to explain how genes might move between species that do not exhibit complete reproductive isolation. In birds, some of the most phylogenetically distant hybrid combinations occur between genera. Traditionally, morphological and plumage characters have been used to...
Calibration of the U.S. Geological Survey National Crustal Model
Oliver S. Boyd
2020, Open-File Report 2020-1052
The U.S. Geological Survey National Crustal Model (NCM) is being developed to include spatially varying estimates of site response in seismic hazard assessments. Primary outputs of the NCM are continuous velocity and density profiles from the Earth’s surface to the mantle transition zone at 410-kilometer (km) depth for each location...
Progress toward the establishment of an extended-duration gas hydrate reservoir response test on the Alaska North Slope
Norihiro Okinaka, Ray Boswell, Timothy Collett, Koji Yamamoto, Brian Anderson
2020, Conference Paper, Proceedings of the 10th international conference on gas hydrates (ICGH10)
No abstract available....
A synthesis of ten years of chemical contaminant monitoring data in National Park Service - Southeast and southwest Alaska networks
Mary Rider, Dennis Apeti, Annie Jacob, Kimani L. Kimbrough, Erik Davenport, Michael R. Bower, Heather A Colletti, Daniel Esler
2020, NOAA Technical Memorandum NOS/MCCOS 277
With the exception of PAHs and trace metals, which were detected at 100% of the sites, all of the other contaminants were detected at varying frequencies. PBBs, Mirex and Endosulfans were not detected in any of the samples and Chlorpyrifos was only detected in five samples across four sites. Chlordanes...
Quarterly wildlife mortality report July 2020
Bryan J. Richards, Anne Ballmann, Barbara Bodenstein, Robert J. Dusek, Jonathan M. Sleeman
2020, Newsletter
The USGS National Wildlife Health Center (NWHC) Quarterly Mortality Report provides brief summaries of epizootic mortality and morbidity events by quarter. The write-ups, highlighting epizootic events and other wildlife disease topics of interest, are published in the Wildlife Disease Association quarterly newsletter. A link is provided in this WDA newsletter...
Population assessment and potential functional roles of native mussels in the Upper Hudson River
Denise A. Mayer, Teresa J. Newton, James T. Rogala
2020, Report, Hudson River Natural Resource Damage Assessment
General Electric Company (GE) directly and indirectly released polychlorinated biphenyls (PCBs) into the Hudson River and the surrounding environment starting in the late 1940’s, making it one of the most PCB-contaminated rivers in North America. Source control at two GE plant sites was implemented in 2009 to stem the influx...
Radiocarbon dating of tsunami and storm deposits
Harvey M. Kelsey, Robert C. Witter
2020, Book chapter, Geological records of tsunamis and other extreme waves
Radiocarbon age determinations can be an expedient and accurate means to assign age to deposits of tsunami or storm origin. Essential to the process of incorporating radiocarbon age determinations in tsunami or coastal storm investigations is an awareness on the part...
Plate boundary trench retreat and dextral shear drive intracontinental fault-slip histories: Neogene dextral faulting across the Gabbs Valley and Gillis Ranges, Central Walker Lane, Nevada
Jeffrey Lee, Andrew K.R. Hoxey, Andrew T. Calvert, Peter Dubyoski
2020, Geosphere (16) 1249-1275
The spatial-temporal evolution of intracontinental faults and the forces that drive their style, orientation, and timing are central to understanding tectonic processes. Intracontinental NW-striking dextral faults in the Gabbs Valley–Gillis Ranges (hereafter referred to as the GVGR), Nevada, define a structural domain known as the eastern Central Walker Lane located...
The pervasive and multifaceted influence of biocrusts on water in the world’s drylands
David J. Eldridge, Sasha C. Reed, Samantha K. Travers, Matthew A. Bowker, Fernando T. Maestre, Jingyi Ding, Caroline Ann Havrilla, Emilio Rodriguez-Caballero, Nichole N. Barger, Bettina Weber, Anita Antoninka, Jayne Belnap, Bala V. Chaudhary, Akasha M. Faist, Scott Ferrenberg, Elisabeth Huber-Sannwald, Oumarou M Issa, Y. Zhao
2020, Global Change Biology (26) 6003-6014
The capture and use of water are critically important in drylands, which collectively constitute Earth's largest biome. Drylands will likely experience lower and more unreliable rainfall as climatic conditions change over the next century. Dryland soils support a rich community of microphytic organisms (biocrusts), which are...
Low oxygen: A (tough) way of life for Okavango fishes
Thea M. Edwards, Ineelo J. Mosie, Brandon C. Moore, Guy Lobjoit, Kelsie Schiavone, Robert E. Bachman, Mike Murray-Hudson
2020, PLoS ONE (15)
Botswana’s Okavango Delta is a World Heritage Site and biodiverse wilderness. In 2016–2018, following arrival of the annual flood of rainwater from Angola’s highlands, and using continuous oxygen logging, we documented profound aquatic hypoxia that persisted for 3.5 to 5 months in the river channel. Within these periods, dissolved oxygen...
seawaveQ—An R package providing a model and utilities for analyzing trends in chemical concentrations in streams with a seasonal wave (seawave) and adjustment for streamflow (Q) and other ancillary variables, version 2.0.0
Karen R. Ryberg, Benjamin C. York
2020, Open-File Report 2020-1082
The seawaveQ R package provides functionality and help to fit a parametric regression model, SEAWAVE-Q, to pesticide concentration data from stream-water samples to assess trends. The model incorporates the strong seasonality and high degree of censoring common in pesticide data, and users can incorporate numerous ancillary variables such as streamflow...
Implanted satellite transmitters affect sea duck movement patterns at short- and long-term time scales
Juliet S. Lamb, Peter WC Paton, Jason E. Osenkowski, Shannon S. Badzinski, Alicia Berlin, Timothy D. Bowman, Chris Dwyer, Luke J. Fara, Scott G. Gilliland, Kevin P. Kenow, Christine Lepage, Mark L. Mallory, Glenn H. Olsen, Matthew Perry, Scott A. Petrie, Jean-Pierre L. Savard, Lucas Savoy, Michael L. Schummer, Caleb S. Spiegel, Scott R. McWilliams
2020, Condor
Studies of the effects of transmitters on wildlife often focus on survival. However, non-lethal behavioral changes resulting from radiomarking have the potential to affect inferences from telemetry data and may vary based on individual and environmental characteristics. We used a long-term, multi-species tracking study of sea ducks to assess behavioral...
Associational effects of plant ontogeny on damage by a specialist insect herbivore
Olivia Cope, Zoe Becker, Paul J. Ode, Paul Ryan, Ian Pearse
2020, Oecologia (193) 593-602
Intraspecific variation in plant traits is a major cause of variation in herbivore feeding and performance. Plant defensive traits change as a plant grows, such that ontogeny may account for a substantial portion of intraspecific trait variation. We tested how the ontogenic stage of an individual plant, of an individual...
