Spatial ecology and resource selection of eastern box turtles
Katie A Harris, Joseph D. Clark, R. Dwayne Elmore, Craig A. Harper
2020, Journal of Wildlife Management (84) 1590-1600
Eastern box turtles (Terrapene carolina carolina) are widely distributed throughout the eastern United States. Although once common throughout much of its distribution, the species has experienced declines in local populations. Understanding resource selection is important for the conservation of this species; however, few data exist on...
Effects of inundation duration on southeastern Louisiana oyster reefs
Danielle A. Marshall, Megan La Peyre
2020, Experimental Results (1)
Understanding the effects of predicted rising sea levels, combined with changes in precipitation and freshwater inflow on key estuarine ecosystem engineers such as the eastern oyster would provide critical information to inform restoration design and predictive models. Using oyster ladders with shell bags placed at three heights to capture a...
Exploring methane behavior in Marcellus Shale micropores via contrast matching neutron scattering
Aaron M. Jubb, Leslie F. Ruppert, Tristan G. A. Youngs, Thomas Headen
2020, Energy & Fuels (34) 10926-10932
Petroleum in shale reservoirs is hosted in organic matter and mineral pores as well as in natural fractures and voids. For thermally mature plays, e.g., the Marcellus Shale, methane and other light alkane gases are thought to be primarily contained in organic matter pores with radii ≦50 nm. Thus, in...
Pesticides and their degradates in groundwater reflect past use and current management strategies, Long Island, New York, USA
Irene Fisher, Patrick J. Phillips, Banu Bayraktar, Shirley Chen, Brendan A. McCarthy, Mark W. Sandstrom
2020, Science of the Total Environment (752)
Long Island, New York, has a mix of urban/suburban to agricultural/horticultural land use and nearly 3 million residents that rely on a sole-source aquifer for drinking water. The analysis of shallow groundwater (<40 m below land surface) collected from 54 monitoring wells across Long Island detected 53 pesticides or pesticide degradates....
Repetitive sampling and control threshold improve 16S rRNA results from produced waters associated with hydraulically fractured shales
Jenna L. Shelton, Elliott P. Barnhart, Leslie F. Ruppert, Aaron M. Jubb, Madalyn S. Blondes, Christina A. DeVera
2020, Frontiers in Microbiology (11)
Sequencing microbial DNA from deep subsurface environments is complicated by a number of issues ranging from contamination to non-reproducible results. Many samples obtained from these environments - which are of great interest due to the potential to stimulate microbial methane generation - contain low biomass. Therefore, samples from these environments...
Step increase in eastern U.S. precipitation linked to Indian Ocean warming
Courtney Strong, Gregory J. McCabe, Alexander Weech
2020, Geophysical Research Letters (47)
A step increase in annual precipitation over the eastern United States in the early 1970s commenced five decades of invigorated hydroclimate, with ongoing impacts on streamflow and water resources. Despite its far-reaching impacts, the dynamical origin of this change is unknown. Here analyses of a century of...
Simultaneous Middle Pleistocene eruption of three widespread tholeiitic basalts in northern California (USA): Insights into crustal magma transport in an actively extending back arc
Drew T. Downs, Duane E. Champion, L.J. Patrick Muffler, Robert L. Christiansen, Michael A. Clynne, Andrew T. Calvert
2020, Geology (48) 1216-1220
Mapping and chronology are central to understanding spatiotemporal volcanic trends in diverse tectonic settings. The Cascades back arc in northern California (USA) hosts abundant lava flows and normal faults, but tholeiitic basalts older than 200 ka are difficult to discriminate by classic mapping methods. Paleomagnetism and chemistry offer independent means...
Reversal of forest soil acidification in the northeastern United States and eastern Canada: Site and soil factors contributing to recovery
P.W. Hazlett, C.E. Emilson, Gregory B. Lawrence, I. J. Fernandez, R. Ouimet, S.W. Bailey
2020, Soil Systems (4)
As acidic deposition has decreased across Eastern North America, forest soils at some sites are beginning to show reversal of soil acidification. However, the degree of recovery appears to vary and is not fully explained by deposition declines alone. To assess if other site and soil factors can help to...
Strategic Plan for the North American Breeding Bird Survey, 2020–30
U.S. Geological Survey, Canadian Wildlife Service
2020, Circular 1466
The North American Breeding Bird Survey (BBS) has been the cornerstone of continental bird conservation and management for hundreds of North American bird species in the United States and Canada for more than 50 years. This strategic plan was developed in collaboration with key partners and stakeholders and charts the...
Boreal blazes: Biomass burning and vegetation types archived in the Juneau Icefield
Natalie Kehrwald, Jeramy Roland Jasmann, Melissa E. Dunham, David G. Ferris, Erich C. Osterburg, Joshua Kennedy, Jeremy C. Havens, Larry B. Barber, Sarah K. Fortner
2020, Environmental Research Letters (15)
The past decade includes some of the most extensive boreal forest fires in the historical record. Warming temperatures, changing precipitation patterns, the desiccation of thick organic soil layers, and increased ignition from lightning all contribute to a combustive combination. Smoke aerosols travel thousands of kilometers, before blanketing...
Metamorphic amphiboles in the Ironwood Iron-Formation, Gogebic Iron Range, Wisconsin: Implications for potential resource development
Carlin J. Green, Robert R. Seal, II, Nadine M. Piatak, William F. Cannon, Ryan J. McAleer, Julia Nord
2020, American Mineralogist (105) 1259-1269
No abstract available. ...
Characterization of peak streamflow and stages at selected streamgages in eastern and northeastern Oklahoma from the May to June 2019 flood event—With an emphasis on flood peaks downstream from dams and on tributaries to the Arkansas River
Jason M. Lewis, David J. Williams, Sarah J. Harris, A.R. Trevisan
2020, Open-File Report 2020-1090
As much as 22 inches of rain fell in Oklahoma in May 2019, resulting in historic flooding along the Arkansas River and its tributaries in eastern and northeastern Oklahoma. The flooding along the Arkansas River and its tributaries that began in May continued into June 2019. Peaks of record were...
Geomorphic map of western Whatcom County, Washington
Dori J. Kovanen, Ralph A. Haugerud, Don J. Easterbrook
2020, Scientific Investigations Map 3406
Western Whatcom County has a rich history of glaciation, sea-level change, fluvial erosion and deposition, landsliding, nearby volcanic activity, and human landscape modification. This lidar-derived geomorphic map interprets this history from the form and position of the Earth’s surface.The geomorphic record is broken into nine phases, beginning with the peak...
Integrating airborne remote sensing and field campaigns for ecology and Earth system science
K. Dana Chadwick, Philip G. Brodrick, Kathleen Grant, Tristan Goulden, Amanda Henderson, Nicola Falco, Haruko Wainwright, Kenneth Williams, Markus Bill, Ian Breckheimer, Eoin Brodie, Heidi Steltzer, C. F. Rick Williams, Benjamin Blonder, Jiancong Chen, Baptiste Dafflon, Joan Damerow, Matt Hancher, Aizah Khurram, Jack Lamb, Corey R. Lawrence, Maeve McCormick, John Musinsky, Samuel Pierce, Alexander Polussa, Maceo Hastings Porro, Andea Scott, Hans Wu Singh, Patrick O. Sorensen, Charuleka Varadharajan, Bizuayehu Whitney, Katharine Maher
2020, Methods in Ecology and Evolution (11) 1492-1508
In recent years, the availability of airborne imaging spectroscopy (hyperspectral) data has expanded dramatically. The high spatial and spectral resolution of these data uniquely enable spatially explicit ecological studies including species mapping, assessment of drought mortality and foliar trait distributions. However, we have barely begun to unlock the potential...
Evaluation of genetic structuring within GIS‐derived Brook Trout management units
Lucas Nathan, Y. Kanno, Benjamin Letcher, Amy B. Welsh, Andrew R. Whiteley, Jason C. Vokoun
2020, Transactions of the American Fisheries Society (149) 681-694
Delineation of management units across broad spatial scales can help to visualize population structuring and identify conservation opportunities. Geographical information system (GIS) approaches can be useful for developing broad‐scale management units, especially when paired with field data that can validate the GIS‐based delineations. Genetic data can be useful for evaluating...
Citizen scientists record novel leaf phenology of invasive shrubs in eastern U.S. forests
Erynn E. Maynard-Bean, Margot Kaye, Tyler Wagner, Eric P. Burkhart
2020, Biological Invasions (22) 3325-3337
Invasive shrubs are an emergent concern in deciduous forests of eastern North America. Their extended leaf phenology (ELP) – earlier leaf emergence and later leaf off compared to native shrubs and the overstory canopy – can simultaneously provide photosynthetic benefits to invasive shrubs while negatively affecting native flora and fauna...
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...
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...
Pulsed Mesozoic deformation in the Cordilleran hinterland and evolution of the Nevadaplano: Insights from the Pequop Mountains, NE Nevada
Andrew V Zuza, Charles H. Thorman, Christopher D. Henry, Drew A. Levy, Seth Dee, Sean P. Long, Charles Sandberg, Emmanuel Soignard
2020, Geosphere (2020)
Mesozoic crustal shortening in the North American Cordillera’s hinterland was related to the construction of the Nevadaplano orogenic plateau. Petrologic and geochemical proxies in Cordilleran core complexes suggest substantial Late Cretaceous crustal thickening during plateau construction. In eastern Nevada, geobarometry from the Snake Range and Ruby Mountains-East Humboldt Range-Wood Hills-Pequop...
Documentation of Surface Fault Rupture and Ground‐Deformation Features Produced by the 4 and 5 July 2019 Mw 6.4 and Mw 7.1 Ridgecrest Earthquake Sequence
Daniel J. Ponti, James Luke Blair, Rosa Carla M, Kate Thomas, Alexandra Pickering, Sinan Akciz, Stephen J. Angster, Jean-Philipe Avouac, Jeffrey Bachhuber, Steven Bacon, Nicolas C. Barth, S. Bennett, Kelly Blake, Stephan Bork, Benjamin A. Brooks, Thomas Bullard, Paul A. Burgess, Colin Chupik, Timothy E. Dawson, Michael DeFrisco, Jaime E. Delano, Stephen B. DeLong, James D. Dolan, Andrea Donnellan, Christopher B. DuRoss, Todd Ericksen, Erik Frost, Gareth J. Funning, Ryan D. Gold, Nicholas A Graehl, Carlos Gutierrez, Elizabeth Haddon, Alexandra Elise Hatem, John Helms, Janis Hernandez, Christopher S. Hitchcock, Peter Holland, Kenneth W. Hudnut, Katherine J. Kendrick, Richard D Koehler, Ozgur Kozaci, Tyler C. Ladinsky, Robert Leeper, Christopher Madugo, Maxime Mareschal, James McDonald, Devin McPhillips, Christopher Milliner, Daniel Mongovin, Alexander Morelan, Stephanie Nale, Johanna Nevitt, Matt O’Neal, Brian J. Olsen, Michael Oskin, Salena Padilla, Jason Patton, Belle E. Philibosian, Ian Pierce, Cynthia Pridmore, Nathaniel Roth, David Sandwell, Katherine M. Scharer, Gordon G. Seitz, Drake Singleton, Bridget Smith-Konter, Eleanor Spangler, Brian J. Swanson, Jessica Thompson Jobe, Jerome Treiman, Francesca Valencia, Joshua Vanderwal, Alana Williams, Xiaohua Xu, Judith Zachariasen, Jade Zimmerman, Robert Zinke
2020, Seismological Research Letters (91) 2942-2959
The Mw">MwMw 6.4 and Mw">MwMw 7.1 Ridgecrest earthquake sequence occurred on 4 and 5 July 2019...
Ancient rivers and critical minerals in eastern Alaska
Adrian Bender, Richard O. Lease, James V. Jones III, Douglas C. Kreiner
2020, Eos, American Geophysical Union
No abstract available....
Complex patterns of genetic and morphological differentiation in the Smallmouth Bass subspecies (Micropterus dolomieu dolomieu and M. d. velox) of the Central Interior Highlands
Joe C. Gunn, Leah K. Berkman, Jeff K. Koppelman, A. T. Taylor, Shannon K. Brewer, James M. Long, Lori S. Eggert
2020, Conservation Genetics (21) 891-904
Due to geologic processes and recent anthropogenic introductions, patterns of genetic and morphological diversity within the Smallmouth Bass (Micropterus dolomieu), which are endemic to the central and eastern United States (USA), are poorly understood. We assessed genetic and morphological differentiation between the widespread Northern Smallmouth Bass (M. d. dolomieu) and...
Hypogeous, sequestrate fungi (genus Elaphomyces) found at small-mammal foraging sites in high-elevation conifer forests of West Virginia
Corinne A. Diggins, Michael A. Castellano, W. Mark Ford
David Richardson, editor(s)
2020, Northeastern Naturalist (27) N40-N47
Little is known about hypogeous, sequestrate (i.e., truffles) fungi in the eastern United States. Since the fruiting bodies of these fungi are part of the diet of multiple rodent species, filling data gaps is important to understanding more about truffle species distribution and habitat associations. During a microhabitat study on...
Groundwater quality in relation to drinking water health standards and geochemical characteristics for 54 domestic wells in Clinton County, Pennsylvania, 2017
John W. Clune, Charles A. Cravotta III
2020, Scientific Investigations Report 2020-5022
Despite the reliance on groundwater by approximately 2.4 million rural Pennsylvania residents, publicly available data to characterize the quality of private well water are limited. As part of a regional effort to characterize groundwater in rural areas of Pennsylvania, samples from 54 domestic wells in Clinton County were collected and...
