Recording the aurora borealis (northern lights) at seismometers across Alaska
C. Tape, Adam T. Ringler, D.L. Hampton
2020, Seismological Research Letters (91) 3039-3053
We examine three continuously recording data sets related to the aurora: all‐sky camera images, three‐component magnetometer data, and vertical‐component, broadband seismic data as part of the EarthScope project (2014 to present). Across Alaska there are six all‐sky cameras, 13 magnetometers, and >200"><span...
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....
Legacy effects of hydrologic alteration in playa wetland responses to droughts
Micah T. Russell, Jennifer M. Cartwright, Gail H. Collins, Ryan A. Long, Jan H. Eitel
2020, Wetlands (40) 2011-2024
Wetland conservation increasingly must account for climate change and legacies of previous land-use practices. Playa wetlands provide critical wildlife habitat, but may be impacted by intensifying droughts and previous hydrologic modifications. To inform playa restoration planning, we asked: (1) what are the trends in playa inundation? (2) what are the...
Quantifying development to inform management of Mojave and Sonoran desert tortoise habitat in the American southwest
Sarah K. Carter, Kenneth Nussear, Todd Esque, Ian IF Leinwand, Elroy H. Masters, Richard D. Inman, Natasha B. Carr, Linda J. Allison
2020, Endangered Species Research (42) 167-184
Two tortoise species native to the American southwest have experienced significant habitat loss from development and are vulnerable to ongoing threats associated with continued development. Mojave desert tortoises Gopherus agassizii are listed as threatened under the US Endangered Species Act, and Sonoran desert tortoises G. morafkai are protected in Arizona...
Vegetation sampling and management
Kenneth F. Higgins, Kurt Jenkins, Daniel W. Uresk, Lora B. Perkins, Kent C. Jensen, Jack E. Norland, Robert W. Klaver, David E. Naugle
2020, Book chapter, The wildlife techniques manual. Volume 1: Research. Volume 2: Management.
What is the utility of vegetation measurements for wildlife managers? In the prairie, savanna, tundra, forest, steppe, and wetland regions of the world, mixtures of plant species provide wildlife with food, cover and, in some circumstances, water; the 3 essential habitat elements necessary to sustain viable wildlife populations. We define...
Research and experimental design
Edward O. Garton, Jocelyn L. Aycrigg, Courtney J. Conway, Jon S. Horne
2020, Book chapter, The wildlife techniques manual, volume 1:Research
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...
Estimates of groundwater discharge by evapotranspiration, Stump Spring and Hiko Springs, Clark County, southern Nevada, 2016–18
Michael T. Moreo, Susan G. Buto, David W. Smith, Nora C. Nelson
2020, Scientific Investigations Report 2020-5075
This report documents methodology and results of a study that estimated groundwater discharge by evapotranspiration (GWET) from phreatophytic vegetation in two desert riparian areas with ephemeral spring discharge in Clark County, southern Nevada. The phreatophytes consisted primarily of western honey mesquite [Prosopis glandulosa var. torreyana (L.D. Benson) M.C. Johnst.] at Stump Spring and...
Adaptive management in wildlife conservation
John F. Organ, Daniel J. Decker, Shawn J. Riley, John E. Mcdonald Jr., Shane P. Mahoney
2020, Book chapter, The wildlife techniques manual
No abstract available....
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...
Managing state lands for wildlife
Thomas Ryder, John F. Organ
2020, Book chapter, The wildlife techniques manual.
State-owned lands are a vital component of state fish and wildlife management programs because they contain valuable habitats for a diversity of wild species and often provide important public access. The Association of Fish and Wildlife Agencies (AFWA 2017) reported state agencies manage or administer approximately 188 million hectares of...
Cryptic evolved melts beneath monotonous basaltic shield volcanoes in the Galápagos Archipelago
M.J. Stock, D. Geist, DA Neave, M.L.M . Gleason, B. Bernard, Keith A. Howard, I. Buisman, J. Maclennan
2020, Nature Communications (11)
Many volcanoes erupt compositionally homogeneous magmas over timescales ranging from decades to millennia. This monotonous activity is thought to reflect a high degree of chemical homogeneity in their magmatic systems, leading to predictable eruptive behaviour. We combine petrological analyses of erupted crystals with new thermodynamic models...
Biotelemetry data for Golden Eagles (Aquila chrysaetos) captured in coastal southern California, February 2017–December 2019
Jeff A. Tracey, Melanie C. Madden, James C. Molden, Jeremy B. Sebes, Peter H. Bloom, Robert N. Fisher
2020, Data Series 1128
Because of a lack of clarity about the status of golden eagles (Aquila chrysaetos) in coastal southern California, the U.S. Geological Survey, in collaboration with U.S. Fish and Wildlife Service, California Department of Fish and Wildlife, Bureau of Land Management, and San Diego Management and Monitoring Program, began a multi-year...
Geochemical assessment of the Hueco Bolson, New Mexico and Texas, 2016–17
Patricia B. Ging, Delbert G. Humberson, Scott J. Ikard
2020, Scientific Investigations Report 2020-5056
Understanding groundwater quality in transboundary aquifers like the Hueco Bolson is important for the 2.7 million people along the United States and Mexico border living in and near the combined metropolitan areas of Ciudad Juárez, Mexico, and El Paso, Texas, who rely on groundwater for water supply. To better understand...
Quality of pesticide data for groundwater analyzed for the National Water-Quality Assessment Project, 2013–18
Laura M. Bexfield, Kenneth Belitz, Mark W. Sandstrom, Delicia Beaty, Laura Medalie, Bruce D. Lindsey, Lisa H. Nowell
2020, Scientific Investigations Report 2020-5072
The National Water-Quality Assessment (NAWQA) Project of the U.S. Geological Survey (USGS) submitted nearly 1,900 samples collected from groundwater sites across the United States in 2013–18 for analysis of 225 pesticide compounds (pesticides and pesticide degradates, hereafter referred to as “pesticides”) by USGS National Water Quality Laboratory schedule 2437 (S2437)....
Assessing the influence of natural copper-nickel-bearing bedrocks of the Duluth Complex on water quality in Minnesota, 2013–15
Sarah M. Elliott, Perry M. Jones, Laurel G. Woodruff, Carrie E. Jennings, Aliesha L. Krall, Daniel L. Morel
2020, Scientific Investigations Report 2020-5039
The U.S. Geological Survey, in cooperation with the University of Minnesota-Duluth Natural Resources Research Institute, completed an assessment of regional water quality in areas of potential base-metal mining in Minnesota. Bedrock, soil, streambed sediment, and surface-water samples were collected in three watersheds that cross the basal part of the Duluth...
Citizen science collaboration with the U.S. Geological Survey in Alaska
Elizabeth Powers, Dee Williams
2020, Fact Sheet 2020-3026
Citizen science is science undertaken by the public, usually in collaboration with professional scientific institutions. It encourages citizens to tackle real-world scientific problems and augments traditional science by expanding the coverage of data collection and by reducing costs of fieldwork in remote locations. Information collected by volunteers enables us all...
A not so sudden impact—Historical relations between conifers and insects can help predict damage by nonnative insects
Lekeah A. Durden, Ashley N. Schulz, Angela M. Mech, Kathryn A. Thomas
2020, Fact Sheet 2020-3039
The arrival and establishment of nonnative insects in North America is increasingly problematic. International trade has created opportunities to move wood products and nursery stock worldwide, which has increased the risk of insect introduction to regions or countries where they are not native. One group of researchers, the High-impact Insect Invasions Working Group (HIIWG), has developed...
Geological and thermal control of the hydrothermal system in northern Yellowstone Lake: Inferences from high resolution magnetic surveys
Claire Bouligand, Maurice A. Tivey, Carol A. Finn, Lisa A Morgan, W. C. Pat Shanks III, Robert A. Sohn
2020, Journal of Geophysical Research Solid Earth (125)
A multiscale magnetic survey of the northern basin of Yellowstone Lake was undertaken in 2016 as part of the Hydrothermal Dynamics of Yellowstone Lake Project (HD‐YLAKE)—a broad research effort to characterize the cause‐and‐effect relationships between geologic and environmental processes and hydrothermal activity on the lake floor. The magnetic survey includes...
Chemical constituent concentrations in stream water, streambed sediment, and soils of Fort Belvoir, Virginia—A characterization of ambient conditions in 2019
Karen C. Rice, Douglas B. Chambers
2020, Open-File Report 2020-1059
IntroductionThe U.S. Army Fort Belvoir (FTBL) installation is on the banks of the Potomac River in Fairfax County, northeastern Virginia. The installation was founded by the U.S. Army during World War I. It has been home to a variety of military organizations over the course of its more than 100-year...
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...
A standard operating procedure for the preparation of purposely killed juvenile salmon used to test survival model assumptions
Ryan G. Tomka, Theresa L. Liedtke, Conrad Frost, Collin D. Smith
2020, Open-File Report 2020-1083
This document describes a standard operating procedure (SOP) for the preparation of purposely killed juvenile salmon, implanted with telemetry transmitters, to be released into rivers, lakes, or streams to test one of the survival model assumptions. Procedures for releases of purposely killed fish (hereinafter dead fish releases) were developed by...
The role of phosphorus and nitrogen on chlorophyll a: Evidence from hundreds of lakes
Zhongyao Liang, Patricia A. Soranno, Tyler Wagner
2020, Water Research (185)
The effect of nutrients on phytoplankton biomass in lakes continues to be a subject of debate by aquatic scientists. However, determining whether or not chlorophyll a (CHL) is limited by phosphorus (P) and/or nitrogen (N) is rarely considered using a probabilistic method in studies of hundreds of lakes across broad spatial extents....
Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign
Abigail A. Fraeman, Lauren A. Edgar, Elizabeth B. Rampe, Lucy M. Thompson, Jens Frydenvang, Christopher M. Fedo, Jeff G. Catalano, William E. Dietrich, Travis S. J. Gabriel, John P. Grotzinger, Jonas L’Haridon, Nicholas Mangold, Vivian Z. Sun, Christopher H House, Alexander Bryk, Craig Hardgrove, Sean Czarnecki, Kathryn M. Stack, Richard V. Morris, Ray E. Arvidson, Steve G. Banham, Kristen A. Bennett, Jon C. Bridges, Christopher S. Edwards, Woodward W. Fischer, Valerie K. Fox, Sanjeev Gupta, Briony H. N. Horgan, Sammantha R. Jacob, Jeffrey R. Johnson, Sarah S. Johnson, David R. Rubin, Mark R Salvatore, Susanne P. Schwenzer, Kirsten L. Siebach, Nathan T. Stein, Stuart Turner, Danika F. Wellington, Roger C. Wiens, Amy J. Williams, G.A. Davidson, Gregory M. Wong
2020, Journal of Geophysical Research: Planets (125)
This paper provides an overview of the Curiosity rover's exploration at Vera Rubin ridge (VRR) and summarizes the science results. VRR is a distinct geomorphic feature on lower Aeolis Mons (informally known as Mount Sharp) that was identified in orbital data based on its distinct texture, topographic expression, and association with a...
A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest
Jennifer M. Cartwright, Travis Belote, Kyle W. Blasch, Steve Campbell, Jeanne C. Chambers, Raymond J. Davis, Solomon Dobrowski, Jason B. Dunham, Diana Gergel, Daniel Isaak, Kristin Jaeger, Meade Krosby, Jesse Langdon, Joshua J. Lawler, Caitlin E. Littlefield, Charles H. Luce, Jeremy D Maestas, Anthony Martinez, Arjan J.H. Meddens, Julia Michalak, Sean A. Parks, Wendy Peterman, Ken Popper, Chris Ringo, Roy Sando, Michael Schindel, Diana Stralberg, David M. Theobald, Nathan Walker, Chad Wilsey, Zhiqiang Yang, Andrew Yost
Jennifer M. Cartwright, editor(s)
2020, Report
This guidebook provides user-friendly overviews of a variety of spatial datasets relevant to conservation and management of natural resources in the face of climate change in the Pacific Northwest, United States. Each guidebook chapter was created using a standardized template to summarize a spatial dataset or a group of closely...
