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 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...
Effectiveness of partial sedation to reduce stress in captured mule deer
Anna C. Ortega, Samantha P. Dwinnell, Tayler N. Lasharr, Rhiannon P. Jakopak, Kristin Denryter, Katey S. Huggler, Matthew M. Hayes, Ellen O. Aikens, Tana L Verzuh, Alexander B. May, Matthew Kauffman, Kevin L. Monteith
2020, Journal of Wildlife Management (84) 1445-1456
Information garnered from the capture and handling of free-ranging animals helps advance understanding of wildlife ecology and can aid in decisions on wildlife management. Unfortunately, animals may experience increased levels of stress, injuries, and death resulting from captures (e.g., exertional myopathy, trauma). Partial sedation is a technique proposed to alleviate...
Evidence of previous faulting along the 2019 Ridgecrest, California earthquake ruptures
Jessica Thompson Jobe, Belle E. Philibosian, Colin Chupik, Timothy E. Dawson, Scott E.K. Bennett, Ryan D. Gold, Christopher DuRoss, Tyler C. Ladinsky, Katherine J. Kendrick, Elizabeth Haddon, Ian Pierce, Brian J. Swanson, Gordon G. Seitz
2020, Bulletin of the Seismological Society of America (110) 1427-1456
The July 2019 Ridgecrest earthquake sequence in southeastern California was characterized as surprising because only ~35% of the rupture occurred on previously mapped faults. Employing more detailed inspection of pre-event high-resolution topography and imagery in combination with field observations, we document evidence of active faulting in the landscape along the...
Trends in inland commercial fisheries in the United States
Devin N. Murray, David B. Bunnell, Mark W. Rogers, Abigail Lynch, Beard Jr., Simon Funge-Smith
2020, Fisheries Magazine (45) 585-596
Inland fisheries, defined as finfish caught in lakes, rivers, and other water bodies, provide economic value and a source of protein at local and international levels. However, no comprehensive compilation of U.S. inland commercial fisheries exists. We sought to obtain data across all 50 states during 1990–2015 and noted a...
Characterization of the unconventional Tuscaloosa marine shale reservoir in southwestern Mississippi, USA: Insights from optical and SEM petrography
Celeste D. Lohr, Brett J. Valentine, Paul C. Hackley, Frank T. Dulong
2020, Marine and Petroleum Geology (121)
This study presents new optical petrography and electron microscopy data, interpreted in the context of previously published petrophysical, geochemical, and mineralogical data, to further characterize the Tuscaloosa marine shale (TMS) as an unconventional reservoir in southwestern Mississippi. The basal high resistivity zone has a higher proportion of Type II sedimentary...
Bot fly parasitism of Allegheny woodrats (Neotoma magister) in Virginia
Karen E. Powers, Michael T. Mengak, Robert R. Sheehy, W. Mark Ford, Richard J. Reynolds
2020, The American Midland Naturalist (184) 62-72
The Allegheny woodrat (Neotoma magister) is a species of high conservation concern and relatively well-studied with respect to habitat use/associations, food habits, conservation genetics, and population trends. However, with the exception of raccoon roundworm (Baylisascaris procyonis) occurrence and etiology in woodrats, most disease and parasite...
Aquatic invasive species in the Chesapeake Bay drainage—Research-based needs and priorities of U.S. Geological Survey partners and collaborators
Christine L. Densmore
2020, Open-File Report 2020-1057
Executive SummaryThe U.S. Geological Survey (USGS) is revising the Chesapeake Bay-based science plan to align it with recent U.S. Department of Interior and USGS science priorities that include, as stated in the plan, providing “an integrated understanding of the factors affecting fish habitat, fish health, and landscape conditions” in Chesapeake...
Assessing the vulnerability of military installations in the coterminous United States to potential biome shifts resulting from rapid climate change
Richard H. Odom, W. Mark Ford
2020, Environmental Management (66) 564-589
Climate change impacts to Department of Defense (DoD) installations will challenge future military mission and natural resource stewardship efforts by increasing vulnerability to flooding, drought, altered fire regimes, invasive species, etc. We developed biome classifications based on current climate for the coterminous United States using the Holdridge Life Zone...
A century of intermittent eco‐evolutionary feedbacks resulted in novel trait combinations in invasive Great Lakes alewives (Alosa pseudoharengus)
Shelby Smith, Eric Palkovacs, Brian Weidel, David Bunnell, Andrew W. Jones, Devin Bloom
2020, Evolutionary Applications (13) 2630-2645
Species introductions provide opportunities to quantify rates and patterns of evolutionary change in response to novel environments. Alewives (Alosa pseudoharengus) are native to the East Coast of North America where they ascend coastal rivers to spawn in lakes and then return to the ocean. Some populations have become landlocked within...
Direct and indirect effects of fire on eastern box turtles
K. Harris, Joseph D. Clark, R. Elmore, C.A. Harper
2020, Journal of Wildlife Management (84) 1384-1395
Prescribed fire is an increasingly important management tool for eastern deciduous forests, but relativity little is known about the direct effects of fire on the eastern box turtle (Terrapene carolina carolina). We used very high frequency (VHF) transmitters to monitor mortality, movement, and spatial ecology of 118 box turtles in...
Forage and habitat for pollinators in the northern Great Plains—Implications for U.S. Department of Agriculture conservation programs
Clint Otto, Autumn H. Smart, Robert S. Cornman, Michael Simanonok, Deborah D. Iwanowicz
2020, Open-File Report 2020-1037
Managed and wild pollinators are critical components of agricultural and natural systems. Despite the well-known value of insect pollinators to U.S. agriculture, Apis mellifera (Linnaeus, 1758; honey bees) and wild bees currently face numerous stressors that have resulted in declining health. These declines have engendered support for pollinator conservation efforts...
Calibrated simulation of the long-term average surficial groundwater system and derived spatial distributions of its characteristics for the contiguous United States
Wesley O. Zell, Ward E. Sanford
2020, Water Resources Research (56)
While the physical processes governing groundwater flow are well understood, and the computational resources now exist for solving the governing equations in three dimensions over continental-scale domains, there remains substantial uncertainty about the subsurface distribution of the properties that control groundwater flow and transport for much of the contiguous United...
Piscivory in recovering Lake Michigan Cisco (Coregonus artedi): The role of invasive species
Ben S Breaker, Kevin L. Pangle, Kevin Donner, Jason Smith, Benjamin A. Turschak, Randall M. Claramunt, David B. Bunnell, Jory L. Jonas
2020, Journal of Great Lakes Research (46) 1402-1411
Contemporary conditions in Lake Michigan where cisco (Coregonus artedi) populations are expanding are vastly different from those encountered by the historic fish community. Invasive species introductions have substantially altered the Lake Michigan ecosystem in the last half century. Successful management efforts for cisco in Lake Michigan hinge on our ability...
Hydrologic modeling to examine the influence of the forestry reclamation approach and climate change on mineland hydrology
Tanja N. Williamson, Chris D. Barton
2020, Science of the Total Environment (743)
Forests in the Appalachian region of the U.S. are threatened by a variety of short- and long-term pressures, including climate change, invasive species, and resource extraction. Surface mining for coal is one of the most important drivers of land-use...
Biological assessment of a proposed vegetation management program to benefit tribes in eastern Oklahoma
Benjamin R. Harms, Heidi L. Bencin, Natasha B. Carr
2020, Open-File Report 2020-1013
Tribal communities may benefit from land management activities that enhance their use of resources on tribal lands. The Bureau of Indian Affairs is implementing a 5-year vegetation management program to provide support for projects that develop and use natural and cultural resources and improve opportunities for agricultural activities to benefit...
Selective sediment transport during Hurricane Sandy on Fire Island (New York, USA): Inferences from heavy-mineral assemblages
Joao Cascalho, Pedro Costa, Guy R. Gelfenbaum, SeanPaul La Selle, Bruce E. Jaffe
2020, Journal of Sedimentary Research (90) 269-285
In October 2012, Hurricane Sandy caused severe erosion on beaches and dunes of Fire Island (New York, USA). Major shoreline changes occurred with erosional dominance in the upper shoreline and aggradation in the lowermost section of the beach due to the deposition of eroded upper beach and dune sediment. Sand...
Regionally continuous Miocene rhyolites beneath the eastern Snake River Plain reveal localized flexure at its western margin: Idaho National Laboratory and vicinity
Kyle L. Schusler, David M. Pearson, Michael J. McCurry, Roy C. Bartholomay, Mark H. Anders
2020, The Mountain Geologist (57) 241-270
The eastern Snake River Plain (ESRP) is a northeast-trending topographic basin interpreted to be the result of the time-transgressive track of the North American plate above the Yellowstone hotspot. The track is defined by the age progression of silicic volcanic rocks exposed along the margins of the ESRP. However, the...
EERI earthquake reconnaissance report: 2019 Ridgecrest earthquake sequence
EERI Learning from Earthquakes Program, Katherine M. Scharer
Elizabeth S. Cochran, Benjamin A. Brooks, Susan E. Hough, Alexandra Pickering, James Luke Blair, Daniel J. Ponti, editor(s)
2020, Report
The Ridgecrest Earthquake Sequence began the morning of 4 July 2019 with an M6.4 earthquake at 10:33 a.m., closely following several small foreshocks. The epicenter of this event was roughly 11 miles (18 km) east-northeast of Ridgecrest (Figure 1) within the Naval Air Weapons Station China Lake (NAWS-CL). Seismic and...
U-Pb geochronology of igneous and detrital zircon samples from the Tok River area, eastern Alaska Range, and Talkeetna Mountains, Alaska
Christopher S. Holm-Denoma, Karri R. Sicard, Evan Twelker
2020, Geological & Geophysical Surveys DGGS RDF 2020-3
This Alaska Division of Geological & Geophysical Surveys (DGGS) Raw Data File presents U-Pb zircon geochronology results from selected igneous, meta-igneous, and metasedimentary rocks collected during the Tok River and Wrangellia geologic mapping projects in the eastern Alaska Range and the northwestern Talkeetna Mountains, Alaska. The purpose of these analyses...
