Exposure of Alaska brown bears (Ursus arctos) to bacterial, viral, and parasitic agents varies spatiotemporally and may be influenced by age
Andrew M. Ramey, Christopher A. Cleveland, Grant V. Hilderbrand, Kyle Joly, David D. Gustine, Buck Mangipane, William B. Leacock, Anthony P. Crupi, Dolores E. Hill, Jitender P. Dubey, Michael J. Yabsley
William B. Leacock, editor(s)
2018, Journal of Wildlife Diseases (55) 576-588
We collected blood and serum from 155 brown bears (Ursus arctos) inhabiting five locations in Alaska during 2013–16 and tested samples for evidence of prior exposure to a suite of bacterial, viral, and parasitic agents. Antibody seroprevalence among Alaska brown bears was estimated to be 15% for Brucella spp., 10% for Francisella tularensis,...
Geologic map of the Pagosa Springs 7.5' quadrangle, Archuleta County, Colorado
David W. Moore, David J. Lidke
2018, Scientific Investigations Map 3419
The geologic map of the Pagosa Springs 7.5’ quadrangle in southwestern Colorado includes the town of Pagosa Springs that is partly known for its hot springs. The quadrangle is southwest of the San Juan volcanic mountains (Oligocene) and north of the San Juan Basin. All bedrock units exposed in the map...
Flood-inundation maps for Cayuga Inlet, Sixmile Creek, Cascadilla Creek, and Fall Creek at Ithaca, New York
Elizabeth A. Nystrom, Arthur G. Lilienthal III, William F. Coon
2018, Scientific Investigations Report 2018-5167
Digital flood-inundation maps for a 2.9-square-mile area of Ithaca, New York, were created in 2015–18 by the U.S. Geological Survey in cooperation with the City of Ithaca, New York, and the New York State Department of State. The flood-inundation maps depict estimates of the maximum areal extent and depth of...
Updated statewide abundance estimates for the Florida manatee
Jeffrey A. Hostetler, Holly H. Edwards, Julien Martin, Paul Schueller
2018, Technical Report 23
Knowing how many manatees live in Florida is critical for conservation and management of this threatened species. Martin et al. (2015) flew aerial surveys in 2011–2012 and estimated abundance in those years using advanced techniques that incorporated multiple data sources. We flew additional aerial surveys in 2015–2016 to count manatees...
Map of sand and gravel mines, prospects, and occurrences, and the geologic units that host them in the Wyoming Landscape Conservation Initiative (WLCI) study area, southwestern Wyoming
Anna B. Wilson
2018, Open-File Report 2018-1139
The Wyoming Landscape Conservation Initiative (WLCI) is a long-term science based effort to assess and enhance aquatic and terrestrial habitats at a landscape scale in southwest Wyoming, while facilitating responsible development through local collaboration and partnerships. The role of the U.S. Geological Survey is to build the scientifically defensible foundation...
Changes in aquatic prey resources in response to estuary restoration in Willapa Bay, southwestern Washington
Isa Woo, Melanie J. Davis, Susan E.W. De La Cruz
2018, Open-File Report 2018-1194
Executive SummaryThe ongoing restoration of more than 200 hectares of estuarine habitat at Willapa National Wildlife Refuge, southwestern Washington, is expected to benefit a variety of species, including salmonids that use estuarine and tidal marshes as rearing and feeding areas as well as migratory waterbirds. During March–June 2014 and 2015,...
Assessment of continuous oil and gas resources in the Niobrara interval of the Cody Shale, Wind River Basin Province, Wyoming, 2018
Thomas M. Finn, Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Phuong A. Le, Michael E. Brownfield, Kristen R. Marra, Heidi M. Leathers-Miller, Ronald M. Drake II, Cheryl A. Woodall, Scott A. Kinney
2018, Fact Sheet 2018-3076
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 389 million barrels of oil and 1.8 trillion cubic feet of gas in the Niobrara interval of the Cody Shale in the Wind River Basin Province, Wyoming....
Real-time streambed scour monitoring at two bridges over the Gunnison River in western Colorado, 2016–17
Mark F. Henneberg
2018, Scientific Investigations Report 2018-5123
The Colorado Department of Transportation maintains roadways crossing over large streams and rivers where sediment transport and channel alignment changes can affect the structural stability of bridges. Structural stability during and immediately after peak streamflow can be assessed by measuring streambed scour; however, placing personnel or boats in the water...
Survival and drifting patterns of grass carp eggs and larvae in response to interactions with flow and sediment in a laboratory flume
Andres F. Prada, Amy E. George, Benjamin H. Stahlschmidt, Duane Chapman, Rafael O. Tinoco
2018, PLoS ONE (13) 1-19
A series of laboratory experiments was conducted to better understand the behavior of grass carp eggs and larvae in moving water in order to develop and implement new strategies for control and prediction of their dispersal and drift at early life stages. Settling velocity and density of a representative sample...
Groundwater, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona—2015–2016
Jon P. Mason, Jamie P. Macy
2018, Open-File Report 2018-1193
The Navajo (N) aquifer is an extensive aquifer and the primary source of groundwater in the 5,400-square-mile Black Mesa area in northeastern Arizona. Availability of water is an important issue in the Black Mesa area because of continued water requirements for industrial and municipal use by a growing population and...
Population characteristics and management of lentic populations of nonnative Burbot in the Green River system, Wyoming
Tucker A. Brauer, Michael Quist, Darren T. Rhea, Troy W. Laughlin, John D. Walrath
2018, North American Journal of Fisheries Management (39) 45-57
Fishes introduced outside of their native distributions have the potential to negatively affect their recipient ecosystems. Since their illegal introduction into the Green River, Wyoming, in the 1990s, Burbot Lota lota have been sampled in lotic and lentic environments throughout the Green River system where they pose a threat to...
A natural‐origin steelhead population's response to exclusion of hatchery fish
Ian I Courter, Garth J Wyatt, Russell Perry, John Plumb, Forrest M Carpenter, Nicklaus K Ackerman, Robert B Lessard, Peter F Galbreath
2018, Transactions of the American Fisheries Society (148) 339-351
It is asserted that reduction or elimination of hatchery stocking will increase natural‐origin salmon Oncorhynchus spp. and steelhead O. mykiss production. We conducted an analysis of steelhead population census data (1958–2017) to determine whether elimination of summer steelhead stocking in the upper Clackamas River in 1998 increased the productivity of...
Simulation of groundwater storage changes in the Quincy Basin, Washington
Lonna M. Frans, Sue C. Kahle, Alison E. Tecca, Theresa D. Olsen
2018, Scientific Investigations Report 2018-5162
The Miocene Columbia River Basalt Group and younger sedimentary deposits of lacustrine, fluvial, eolian, and cataclysmic-flood origins compose the aquifer system of the Quincy Basin in eastern Washington. Irrigation return flow and canal leakage from the Columbia Basin Project have caused groundwater levels to rise substantially in some areas....
Sympatry or syntopy? Investigating drivers of distribution and co‐occurrence for two imperiled sea turtle species in Gulf of Mexico neritic waters
Kristen M. Hart, Autumn R. Iverson, Ikuko Fujisaki, Margaret M. Lamont, David N. Bucklin, Donna J. Shaver
2018, Ecology and Evolution (8) 12656-12669
Animals co‐occurring in a region (sympatry) may use the same habitat (syntopy) within that region. A central aim in ecology is determining what factors drive species distributions (i.e., abiotic conditions, dispersal limitations, and/or biotic interactions). Assessing the degree of biotic interactions can be difficult for species with wide ranges at...
Comparing groundwater quality in public-supply and shallow aquifers in the Monterey Bay and Salinas Valley Basins, California
Carmen A. Burton
2018, Fact Sheet 2018-3078
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program (GAMA-PBP) provides a comprehensive assessment of the State’s groundwater quality and increases public access...
Sediment transport monitoring of the Yankee Fork of the Salmon River near Stanley, Idaho, 2012–15
James W. Johnsen
2018, Open-File Report 2018-1189
The Yankee Fork of the Salmon River is one of the larger watersheds in the upper Salmon River subbasin of central Idaho. Mining activities since the late 19th century, specifically placer mining and associated dredging from 1940 to 1953, have left the fluvial system in a highly altered and unnatural...
Sediment data from vibracores collected in 2016 from Fire Island, New York
Noreen A. Buster, Julie Bernier, Owen T. Brenner, Kyle W. Kelso, Thomas M. Tuten, Jennifer L. Miselis
2018, Data Series 1100
Researchers from the U.S. Geological Survey (USGS) conducted a long-term coastal morphologic-change study at Fire Island, New York, prior to and after Hurricane Sandy impacted the area in October 2012. The Fire Island Coastal Change project objectives include understanding the morphologic evolution of the barrier island system on...
Survey of Arctic Alaskan wildlife for influenza A antibodies: Limited evidence for exposure of mammals
Caroline R. Van Hemert, Timothy J. Spivey, Brian D. Uher-Koch, Todd C. Atwood, David R. Sinnett, Brandt W. Meixell, Jerry W. Hupp, Kaijun Jiang, Layne G. Adams, David D. Gustine, Andrew M. Ramey, Xiu-Feng Wan
2018, Journal of Wildlife Diseases (55) 387-398
Influenza A viruses (IAVs) are maintained in wild waterbirds and have the potential to infect a broad range of species, including wild mammals. The Arctic Coastal Plain of Alaska supports a diverse suite of species, including waterfowl that are common hosts of IAVs. Mammals co-occur with geese and other migratory...
Storm surge propagation and flooding in small tidal rivers during events of mixed coastal and fluvial influence
Liv M. Herdman, Li H. Erikson, Patrick L. Barnard
2018, Journal of Marine Science and Engineering (6) 1-26
The highly urbanized estuary of San Francisco Bay is an excellent example of a location susceptible to flooding from both coastal and fluvial influences. As part of developing a forecast model that integrates fluvial and oceanic drivers, a case study of the Napa River and its interactions with the San...
Regeneration and expansion of Quercus tomentella (island oak) groves on Santa Rosa Island
Jay Woolsey, Cause Hanna, Kathryn McEachern, Sean Anderson, Brett D. Hartman
2018, Western North American Naturalist (78) 758-767
Quercus tomentella (island oak) is an endemic species that plays a key functional role in Channel Island ecosystems. Growing in groves on highland ridges, Q. tomentella captures fog and increases water inputs, stabilizes soils, and provides habitat for flora and fauna. This cloud forest system has been impacted by a long history of...
User guide for the Massachusetts Sustainable-Yield Estimator (MA SYE—version 2.0) computer program
Gregory E. Granato, Sara B. Levin
2018, Open-File Report 2018-1169
This report is a user guide for the Massachusetts Sustainable-Yield Estimator (MA SYE) computer program (version 2.0). The MA SYE was developed by the U.S. Geological Survey in cooperation with the Massachusetts Department of Environmental Protection to provide a planning-level decision-support tool designed to help decision makers estimate daily mean...
Methods used to estimate daily streamflow and water availability in the Massachusetts Sustainable-Yield Estimator version 2.0
Sara B. Levin, Gregory E. Granato
2018, Scientific Investigations Report 2018-5146
The Massachusetts Sustainable-Yield Estimator is a decision support tool that provides estimates of daily unaltered streamflow, water-use-adjusted streamflow, and water availability for ungaged, user-defined basins in Massachusetts. Daily streamflow at the ungaged site is estimated for unaltered (no water use) and water-use scenarios. The procedure for estimating streamflow was developed...
Time-to-detection occupancy modeling: An efficient method for analyzing the occurrence of amphibians and reptiles
Brian J. Halstead, Patrick M. Kleeman, Jonathan P. Rose
2018, Journal of Herpetology (52) 415-424
Occupancy models provide a reliable method of estimating species distributions while accounting for imperfect detectability. The cost of accounting for false absences is that detection and nondetection surveys typically require repeated visits to a site or multiple-observer techniques. More efficient methods of collecting data to estimate detection probabilities would allow...
The Puʻu ʻŌʻō eruption of Kīlauea Volcano, Hawai‘i—Episode 21 through early episode 48, June 1984–April 1987
Tim R. Orr, George E. Ulrich, Christina Heliker, Liliana G. DeSmither, John P. Hoffmann
2018, Scientific Investigations Report 2018-5109
The Pu‘u ‘Ō‘ō eruption from the middle East Rift Zone of Kīlauea Volcano began in January 1983 with intermittent activity along several fissures. By June 1983, the eruption had localized at the Pu‘u ‘Ō‘ō vent and the activity settled into an increasingly regular pattern of brief eruptive episodes characterized by...
Measuring SO2 emission rates at Kīlauea Volcano, Hawaii, using an array of upward-looking UV spectrometers, 2014-2017
Tamar Elias, Christoph Kern, Keith A. Horton, A. J. Sutton, Harold Garbeil
2018, Frontiers in Earth Science (6)
Retrieving accurate volcanic sulfur dioxide (SO2) gas emission rates is important for a variety of purposes. It is an indicator of shallow subsurface magma, and thus may signal impending eruption or unrest. SO2 emission rates are significant for accurately assessing climate impact, and providing context for assessing environmental, agricultural, and...
