Science foundation Chapter 5 Appendix 5.1: Case study shore birds: Western sandpipers (Calidris mauri) and American avocets (Recurvirostra Americana)
Cheryl Strong, Joshua T. Ackerman
2015, Report, The baylands and climate change what we can do: Baylands ecosystem habitat goals science update 2015
Western sandpipers (Calidris mauri) are small (22-35 g) sexually dimorphic sandpipers, with males typically smaller than females. Western sandpipers frequently occur in mixed species flocks along with other Calidris species, including least sandpipers (Calidris minutilla) and dunlin (Calidris alpina), in the San Francisco Bay Estuary (SFBE) and are the most...
Science foundation Chapter 5 Appendix 5.1: Case study california ridgway's rail (Rallus obseoletus obsoletus)
Cory T. Overton, Julian Wood
2015, Report, The baylands and climate change what we can do: Baylands ecosystem habitat goals science update 2015
The clapper rail (Rallus longirostris) recently was split into two sister groups (Chesser et al. 2014) on the basis of phylogenetic analyses (Maley and Brumfield 2013). The original grouping is now represented on the East Coast of North America by the Clapper rail (Rallus crepitans) and on the West Coast...
Potential application of radiogenic isotopes and geophysical methods to understand the hydrothermal dystem of the Upper Geyser Basin, Yellowstone National Park
James B. Paces, Andrew J. Long, Karl R. Koth
2015, Natural Resource Report NPS/YELL/NRR—2015/1077
Numerous geochemical and geophysical studies have been conducted at Yellowstone National Park to better understand the hydrogeologic processes supporting the thermal features of the Park. This report provides the first 87Sr/86Sr and 234U/238U data for thermal water from the Upper Geyser Basin (UGB) intended to evaluate whether heavy radiogenic isotopes...
Science foundation Chapter 5 Appendix 5.1: Case study marsh macroinvertebrates
Elizabeth Brusati, Isa Woo
2015, Report, The baylands and climate change what we can do: Baylands ecosystem habitat goals science update 2015
This case study includes representative macroinvertebrates that live in the marsh plain, its associated channels and pannes (ponds), and the marsh-upland transition zone. While less visible than animals such as birds, invertebrates play important roles in physical and biological processes (e.g., burrowing activity and channel bank erosion, and detritivores breaking...
Gunnison Sage-Grouse Centrocercus minimus
Jessica R. Young, Clait E. Braun, Sara J. Oyler-McCance, Cameron L. Aldridge, Patrick Magee, Michael A. Schroeder
2015, Book chapter
No abstract available...
Blackbrush (Coleogyne ramosissima Torr.): State of our knowledge and future challenges
Rosemary L. Pendleton, Burton K. Pendleton, Susan E. Meyer, Bryce A. Richardson, Todd C. Esque, Stanley G. Kitchen
2015, Conference Paper, The Colorado plateau VI: Science and management at the landscape scale
Covering 130,000 square miles and a wide range of elevations from desert to alpine in Arizona, Utah, Colorado, and New Mexico, the Colorado Plateau has long fascinated researchers. The Colorado Plateau VI provides readers with a plethora of updates and insights into land conservation and management questions currently surrounding the...
Great Lakes prey fish populations: A cross-basin Overview of status and trends based on bottom trawl surveys, 1978-2014
Owen T. Gorman, Brian Weidel
2015, Report, Compiled reports to the Great Lakes Fishery Commission of the Annual Bottom Trawl and Acoustics Surveys, 2014
The assessment of Great Lakes prey fish stocks have been conducted annually with bottom trawls since the 1970s by the Great Lakes Science Center, sometimes assisted by partner agencies. These stock assessments provide data on the status and trends of prey fish that are consumed by important commercial and recreational...
Construction ages of the Upton Stone Chamber: Preliminary findings and suggestions for future luminescence research
Shannon A. Mahan, Frederick Martin, Cathy Taylor
2015, Quaternary Geochronology (30 ) 422-430
The Upton Chamber in Massachusetts, an earth-covered stone structure 3.4 meters (m) in diameter, with a corbelled stone dome, and a 4.3 m long entrance passageway, is studied with the aim of determining whether optically stimulated luminescence (OSL) dating methods can be used to establish the approximate construction date of...
Adaptive harvest management for the Svalbard population of pink-footed geese: 2015 progress summary
Fred A. Johnson, Jesper Madsen
2015, Technical Report from DCE - Danish Centre for Environment and Energy 64
This document describes progress to date on the development of an adaptive harvest management strategy for maintaining the Svalbard population of pink‐footed geese (Anser brachyrhynchus) near their agreed target level (60,000) by providing for sustainable harvests in Norway and Denmark. This report provides an assessment of the most recent monitoring...
Geologic maps of the eastern Alaska Range, Alaska (1:63,360 scale)
Warren J. Nokleberg, John N. Aleinikoff, Gerard C. Bond, Oscar J. Ferrians Jr., Paige L. Herzon, Ian M. Lange, Ronny T. Miyaoka, Donald H. Richter, Carl E. Schwab, Steven R. Silva, Thomas E. Smith, Richard E. Zehner
2015, Report
This report provides a description of map units for a suite of 44 inch-to-mile (1:63,360-scale) geologic quadrangle maps of the eastern Alaska Range. This report also contains a geologic and tectonic summary and a comprehensive list of references pertaining to geologic mapping and specialized studies of the region. In addition...
An environmental survey of Serpentine Hot Springs: Geology, hydrology, geochemistry, and microbiology
D. Kirk Nordstrom, Linda Hasselbach, Steven E. Ingebritsen, Dana Skorupa, R. Blaine McCleskey, Timothy R. McDermott
2015, Natural Resource Report NPS/BELA/NRR—2015/1019
Serpentine Hot Springs is the most visited site in the Bering Land Bridge National Preserve. The hot springs have traditionally been used by the Native people of the Seward Peninsula for religious, medicinal and spiritual purposes and continue to be used in many of the same ways by Native people...
Science foundation Chapter 5 Appendix 5.1: Case study dabbling ducks
Gregory S. Yarris, Joshua T. Ackerman
2015, Report, The baylands and climate change what we can do: Baylands ecosystem habitat goals science update 2015
Dabbling ducks are the most abundant group of waterfowl that overwinter in the shallow wetlands and ponds of San Francisco Bay (SFB). Species within this group are primarily omnivorous, feeding on both plant material and macroinvertebrate prey by “tipping” to access benthic foods in bottom sediments or by foraging in...
Upscaling of U (VI) desorption and transport from decimeter‐scale heterogeneity to plume‐scale modeling
Gary P. Curtis, Matthias Kohler, Ramakrishnan Kannappan, Martin A. Briggs, Frederick D. Day-Lewis
2015, Technical Report DOE-USGS--SC0003681
Scientifically defensible predictions of field scale U(VI) transport in groundwater requires an understanding of key processes at multiple scales. These scales range from smaller than the sediment grain scale (less than 10 μm) to as large as the field scale which can extend over several kilometers. The key processes that...
A comparative study of surface waves inversion techniques at strong motion recording sites in Greece
Panagiotis C. Pelekis, Alexandros Savvaidis, Robert E. Kayen, Vasileios S. Vlachakis, George A. Athanasopoulos
2015, Conference Paper, Symposium on the Application of Geophysics to Engineering and Environmental Problems 2015
Surface wave method was used for the estimation of Vs vs depth profile at 10 strong motion stations in Greece. The dispersion data were obtained by SASW method, utilizing a pair of electromechanical harmonic-wave source (shakers) or a random source (drop weight). In this study, three inversion techniques were used...
Mechanisms of sediment flux between shallows and marshes
Jessica R. Lacy, L.M. Schile, J.C. Callaway, M.C. Ferner
2015, Conference Paper, The Proceedings of Coastal Sediments 2015
We conducted a field study to investigate temporal variation and forcing mechanisms of sediment flux between a salt marsh and adjacent shallows in northern San Francisco Bay. Suspended-sediment concentration (SSC), tidal currents, and wave properties were measured over the marsh, in marsh creeks, and in bay shallows. Cumulative sediment flux...
Environmental DNA calibration study interim technical review report December 2014
Kelly Baerwaldt, Meredith L. Bartron, Kurt Schilling, Debbie Lee, Edmond Russo, Trudy Estes, Richard Fischer, Beth Fleming, Michael P. Guilfoyle, Jack Killgore, Richard Lance, Edward Perkins, Martin Schultz, David Smith, Jon J. Amberg, Duane Chapman, Mark P. Gaikowski, Katy E. Klymus, Catherine A. Richter
2015, Report
The Environmental DNA Calibration Study (ECALS) is a multi-year study to improve the understanding and interpretation of the detection of Asian carp DNA in environmental samples (eDNA) used in early detection monitoring. eDNA surveillance programs seek to detect the presence of genetic material (DNA in cells sloughed off in slime,...
Density-dependent effects of omnivorous stream crayfish on benthic trophic dynamics
J.P. Ludlam, B. T. Banks, Daniel D. Magoulick
2015, Freshwater Crayfish (21) 165-170
Crayfish are abundant and important consumers in aquatic food webs and crayfish invasions have demonstrated strong effects of crayfish on multiple trophic levels. Density may be an important factor determining the role of omnivorous crayfish in benthic communities, especially if density alters the strength of trophic interactions. The effect of...
The cost of karst subsidence and sinkhole collapse in the United States compared with other natural hazards
David J. Weary
2015, Conference Paper, 14th Sinkhole Conference
Rocks with potential for karst formation are found in all 50 states. Damage due to karst subsidence and sinkhole collapse is a natural hazard of national scope. Repair of damage to buildings, highways, and other infrastructure represents a significant national cost. Sparse and incomplete data show that the average cost...
Point-source stochastic-method simulations of ground motions for the PEER NGA-East Project
David Boore
2015, Report, NGA-East Median Ground-Motion Models for the Central and Eastern North America Region
Ground-motions for the PEER NGA-East project were simulated using a point-source stochastic method. The simulated motions are provided for distances between of 0 and 1200 km, M from 4 to 8, and 25 ground-motion intensity measures: peak ground velocity (PGV), peak ground acceleration (PGA), and 5%-damped pseudoabsolute...
Life on the edge in eastern Alaska: Basal Ordovician(Tremadocian), platform-margin faunas of the Jones Ridge Formation
J. F. Taylor, T. J. Allen, John E. Repetski, J. V. Strauss, S. J. Irwin
2015, Stratigraphy (12) 71-77
As the most fossiliferous and least deformed succession of unequivocally Laurentian lower Paleozoic strata in Alaska, the Jones Ridge Limestone has provided critical data for numerous stratigraphic studies (e. g. Palmer 1968; Harris et al. 1995; Dumoulin et al. 2002; Dumoulin and Harris 2012) focused on the Cambrian and Ordovician...
Isotopic insights into biological regulation of zinc in contaminated systems
Richard B. Wanty, Laurie S. Balistrieri, Jeff S. Wesner, David Walters, Travis S. Schmidt, Francesca Podda, G. De Giudici, Craig A. Stricker, Johanna M. Kraus, Pierfranco Lattanzi, Ruth E. Wolf, R. Cidu
2015, Procedia Earth and Planetary Science (13) 60-63
Aquatic organisms use a variety of biogeochemical reactions to regulate essential and non-essential trace metals. Many of these mechanisms can lead to isotopic fractionation, thus measurement of metal isotopes may yield insights into the processes by which organisms respond to metal exposure. We illustrate these concepts with two case studies,...
Long-term monitoring program: Evaluating chronic exposure of harlequin ducks and sea otters to lingering Exxon Valdez Oil in Western Prince William Sound
Daniel Esler, Lizabeth Bowen, A. Keith Miles, Brenda E. Ballachey, James L. Bodkin
2015, Report
We found that average cytochrome P4501A induction (as measured by EROD activity) during March 2014 was not elevated in wintering harlequin ducks captured in areas of Prince William Sound oiled by the 1989 Exxon Valdez oil spill, relative to those captured in unoiled areas. This result is consistent with findings...
Hydrologic response for a high-elevation storm in the South Dakota Black Hills
Matthew J. Bunkers, Melissa Smith, Daniel G. Driscoll, Galen K. Hoogestraat
2015, Internal Report 2015-01
A group of thunderstorms produced >4 in of rain during four periods of progressively more intense rainfall across a small part of a relatively high-elevation area of the northern Black Hills on 5 August 2014. The resulting hydrologic response was noteworthy in two very small headwater drainage basins, where the...
Shaking intensity from injection-induced versus tectonic earthquakes in the central-eastern United States
Susan E. Hough
2015, The Leading Edge (34) 690-697
Although instrumental recordings of earthquakes in the central and eastern United States (CEUS) remain sparse, the U. S. Geological Survey's “Did you feel it?” (DYFI) system now provides excellent characterization of shaking intensities caused by induced and tectonic earthquakes. Seventeen CEUS events are considered between 2013 and 2015. It is...
Stress and mass changes at a “wet” volcano: Example during the 2011–2012 volcanic unrest at Kawah Ijen volcano (Indonesia)
Corentin Caudron, Thomas Lecocq, Devy K. Syahbana, Wendy McCausland, Arnaud Watlet, Thierry Camelbeeck, Alain Bernard, Surono
2015, Journal of Geophysical Research (120) 5117-5134
Since 2010, Kawah Ijen volcano has been equipped with seismometers, and its extremely acid volcanic lake has been monitored using temperature and leveling sensors, providing unprecedented time resolution of multiparametric data for an acidic volcanic lake. The nature of stress and mass changes of the volcano is studied by combining seismic analyses and...
