Assessing the geologic and climatic forcing of biodiversity and evolution surrounding the Gulf of California
Greer Dolby, Scott E.K. Bennett, Andres Lira-Noriega, Benjamin T. Wilder, Adrian Munguia-Vega
2015, Journal of the Southwest (57) 391-455
For almost a century the Baja California peninsula (Peninsula), Gulf of California (Gulf), and broader Sonoran Desert region (figure 1) have drawn geologists and biologists alike to study its unique physical and evolutionary processes (e.g., Wittich 1920; Darton 1921; Nelson 1921; Johnston 1924; Beal 1948; Durham and Allison 1960). The...
Accelerating advances in continental domain hydrologic modeling
Stacey A. Archfield, Martyn Clark, Berit Arheimer, Lauren E. Hay, Hilary McMillan, Julie E. Kiang, Jan Seibert, Kirsti Hakala, Andrew R. Bock, Thorsten Wagener, William H. Farmer, Vazken Andreassian, Sabine Attinger, Alberto Viglione, Rodney Knight, Steven L. Markstrom, Thomas M. Over
2015, Water Resources Research (51) 10078-10091
In the past, hydrologic modeling of surface water resources has mainly focused on simulating the hydrologic cycle at local to regional catchment modeling domains. There now exists a level of maturity among the catchment, global water security, and land surface modeling communities such that these communities are converging toward continental...
Factors influencing capture of invasive sea lamprey in traps baited with a synthesized sex pheromone component
Nicholas S. Johnson, Michael J. Siefkes, C. Michael Wagner, Gale Bravener, Todd Steeves, Michael Twohey, Weiming Li
2015, Journal of Chemical Ecology (41) 913-923
The sea lamprey, Petromyzon marinus, is emerging as a model organism for understanding how pheromones can be used for manipulating vertebrate behavior in an integrated pest management program. In a previous study, a synthetic sex pheromone component 7α,12α, 24-trihydroxy-5α-cholan-3-one 24-sulfate (3kPZS) was applied to sea lamprey traps in eight...
Functional role of an endophytic Bacillus amyloliquefaciens in enhancing growth and disease protection of invasive English ivy (Hedera helix L.)
Marcos Antonio Soares, Jai-Yan Li, Marshall Bergen, Joaquim Manoel da Silva, Kurt P. Kowalski, James Francis White
2015, Plant and Soil (405) 107-123
BackgroundWe hypothesize that invasive English ivy (Hedera helix) harbors endophytic microbes that promote plant growth and survival. To evaluate this hypothesis, we examined endophytic bacteria in English ivy and evaluated effects on the host plant.MethodsEndophytic bacteria were isolated...
Using time-varying asymptotic length and body condition of top piscivores to indicate ecosystem regime shift in the main basin of Lake Huron: a Bayesian hierarchical modeling approach
Ji X. He, James R. Bence, Edward F. Roseman, David G. Fielder, Mark P. Ebener
2015, Canadian Journal of Fisheries and Aquatic Sciences (73) 1092-1103
We evaluated the ecosystem regime shift in the main basin of Lake Huron that was indicated by the 2003 collapse of alewives, and dramatic declines in Chinook salmon abundance thereafter. We found that the period of 1995-2002 should be considered as the early phase of the final regime shift. We...
Towards forecasting the retreat of California’s coastal cliffs during the 21st century
Patrick W. Limber, Patrick L. Barnard, Cheryl Hapke
2015, Conference Paper, The proceedings of the coastal sediments 2015
In California, sea-level rise during the 21st century threatens to accelerate coastal cliff recession rates. To forecast such changes for managers and policymakers, models must play a key role. In this paper, we extend a ~70-year long dataset of measured historic sea cliff retreat rates in Southern California into the 21st century...
Habitat edges have weak effects on duck nest survival at local spatial scales
Amelia J Raquel, Kevin M. Ringelman, Joshua T. Ackerman, John M. Eadie
2015, Ardea (103) 155-162
Edge effects on nesting success have been documented in breeding birds in a variety of contexts, but there is still uncertainty in how edge type and spatial scale determine the magnitude and detectability of edge effects. Habitat edges are often viewed as predator corridors that surround or penetrate core habitat...
A satellite-based composite index approach for agricultural drought monitoring: Current work and future directions
Brian D. Wardlow, T. Tadesse, Jesslyn F. Brown, M. Svoboda, M. Hayes, K. Callahan, C. Poulsen, C. Hain, M. Anderson, M. Rodell, D. Mocko
2015, Conference Paper, Evaluation of drought and drought impacts through interdisciplinary methods
No abstract available....
Adapting the U.S. National Hydrography Dataset to linked open data
Dalia E. Varanka, E. Lynn Usery, David M. Mattli
2015, Conference Paper, Cartography -- maps connecting the world: 27th International Cartographic Conference 2015 - ICC2015
A controlled vocabulary for the National Hydrography Dataset (NHD) of the United States was developed as Linked Open Data (LOD). The vocabulary has two main parts: a glossary and a set of triples reflecting the NHD data model as it is organized in geographic information systems (GIS). The glossary consists...
Mechanics of sediment suspension and transport within a fringing reef
A. W. M. Pomeroy, R. J. Lowe, M. Ghisalberti, Curt D. Storlazzi, M. Cutter, G. Symonds
2015, Conference Paper, The proceedings of the coastal sediments 2015
Large bottom roughness is a characteristic of most coral reef environments and this has been shown to have a substantial impact on hydrodynamic processes in these environments. In this paper, we evaluate suspended sediment concentration (SSC) data as well detailed hydrodynamic data over a coral reef flat in Ningaloo Reef,...
Groundwater and surface-water interaction and effects of pumping in a complex glacial-sediment aquifer, phase 2, east-central Massachusetts
Jack R. Eggleston, Phillip J. Zarriello, Carl S. Carlson
2015, Scientific Investigations Report 2015-5174
The U.S. Geological Survey, in cooperation with the Town of Framingham, Massachusetts, has investigated the potential of proposed groundwater withdrawals at the Birch Road well site to affect nearby surface water bodies and wetlands, including Lake Cochituate, the Sudbury River, and the Great Meadows National Wildlife Refuge in east-central Massachusetts....
Paleoclimate and the origin of Paleozoic chert: Time to re-examine the origins of chert in the rock record
C. Blaine Cecil
2015, Sedimentary Record 4-10
No abstract available....
Use of historic Persian water system data in groundwater models: Examples from Afghanistan and Emirates
Thomas J. Mack, Jack R. Eggleston
2015, Conference Paper, MODLFOW and more 2015, modeling a complex world proceedings
Obtaining calibration data for models depicting conditions during pre-development periods can be challenging as such periods are characteristically data poor. This study presents two examples where simulation of historic water conveyance structures were used to help characterize historic, or pre-modern, conditions in calibration of groundwater flow models. Persian water...
Refinements to the Graves and Pitarka (2010) Broadband Ground Motion Simulation Method
Robert Graves, Arben Pitarka
2015, Seismological Research Letters (86) 75-80
This brief article describes refinements to the Graves and Pitarka (2010) broadband ground motion simulation methodology (GP2010 hereafter) that have been implemented in version 14.3 of the SCEC Broadband Platform (BBP). The updated version of our method on the current SCEC BBP is referred to as GP14.3. Our simulation technique...
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...
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...
Artificial reefs and reef restoration in the Laurentian Great Lakes
Matthew W. McLean, Edward F. Roseman, Jeremy J. Pritt, Gregory W. Kennedy, Bruce A. Manny
2015, Journal of Great Lakes Research (41) 1-8
We reviewed the published literature to provide an inventory of Laurentian Great Lakes artificial reef projects and their purposes. We also sought to characterize physical and biological monitoring for artificial reef projects in the Great Lakes and determine the success of artificial reefs in meeting project objectives. We found records...
Effects of population reduction on white-tailed deer home-range dynamics
Shawn M. Crimmins, John W. Edwards, Tyler A Campbell, W. Mark Ford, Patrick D. Keyser, Brad F. Miller, Karl V. Miller
2015, Northeastern Naturalist (22) 403-412
Management strategies designed to reduce the negative impacts of overabundant Odocoileus virginianus (White-tailed Deer) populations on forest regeneration may be influenced by changes in both population density and timber harvest. However, there is conflicting evidence as to how such changes in per capita resource availability influence home-range patterns. We compared home-range patterns...
Testing assumptions for conservation of migratory shorebirds and coastal managed wetlands
Jaime Collazo, James Lyons, Garth Herring
2015, Wetlands Ecology and Management
Managed wetlands provide critical foraging and roosting habitats for shorebirds during migration; therefore, ensuring their availability is a priority action in shorebird conservation plans. Contemporary shorebird conservation plans rely on a number of assumptions about shorebird prey resources and migratory behavior to determine stopover habitat requirements. For example,...
Soil formation: Chapter 6
Martin B. Goldhaber, Steven A. Banwart
2015, Book chapter, Soil carbon: Science, management and policy for multiple benefits
Soil formation reflects the complex interaction of many factors, among the most important of which are (i) the nature of the soil parent material, (ii) regional climate, (iii) organisms, including humans, (iv) topography and (v) time. These processes operate in Earth's critical zone; the thin veneer of our planet where...
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,...
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...
Science foundation Chapter 5 Appendix 5.1: Case study diving ducks
John Y. Takekawa, Susan De La Cruz, Joshua T. Ackerman, Gregory S. Yarris
2015, Report, The baylands and climate change what we can do: Baylands ecosystem habitat goals science update 2015
Diving ducks are the most abundant group of waterfowl that overwinter in the open bays and ponds of San Francisco Bay (SFB). Species within this group are primarily benthivores that dive to obtain their macroinvertebrate prey in bottom sediments, although at times they may eat plant matter or forage in...
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...
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...
