Natal location influences movement and survival of a spatially structured population of snail kites
J. Martin, W.M. Kitchens, J.E. Hines
2007, Oecologia (153) 291-301
Despite the accepted importance of the need to better understand how natal location affects movement decisions and survival of animals, robust estimates of movement and survival in relation to the natal location are lacking. Our study focuses on movement and survival related to the natal location of snail kites...
Immunotoxicity of trenbolone acetate in Japanese quail
M.J. Quinn, M. McKernan, E.T. Lavoie, M. A. Ottinger
2007, Journal of Toxicology and Environmental Health, Part A (70) 88-93
Trenbolone acetate is a synthetic androgen that is currently used as a growth promoter in many meat-exporting countries. Despite industry laboratories classifying trenbolone as nonteratogenic, data showed that embryonic exposure to this androgenic chemical altered development of the immune system in Japanese quail. Trenbolone is lipophilic, persistent, and...
The Washington Biologists' Field Club : Its members and its history (1900-2006)
Matthew C. Perry, editor(s)
2007, Book
This book is based on the interesting one-hundred-plus-year history of the Club and its members. Plummers Island and the historic cabin on the Island have served as a common meeting area where the Club members have conducted research and held many social activities for over a century. The...
Variations in City Exposure and Sensitivity to Tsunami Hazards in Oregon
Nathan Wood
2007, Scientific Investigations Report 2007-5283
Evidence of past events and modeling of potential future events suggest that tsunamis are significant threats to Oregon coastal communities. Although a potential tsunami-inundation zone from a Cascadia Subduction Zone earthquake has been delineated, what is in this area and how communities have chosen to develop within it have not...
Assessing methane release from the colossal Storegga submarine landslide
C. K. Paull, W. Ussler III, W.S. Holbrook
2007, Geophysical Research Letters (34)
Marine slope failure involving methane-gas-hydrate-bearing sediments is one mechanism for releasing enormous quantities of methane to the ocean and atmosphere. The Storegga Slide, on the Norwegian margin, is the largest known Holocene-aged continental margin slope failure complex and is believed to have occurred in sediments that may have initially contained...
Postseismic relaxation associated with transient creep rheology
James C. Savage
2007, Journal of Geophysical Research B: Solid Earth (112) 1-7
[1] Perfettini and Avouac (2004) postulated that both the aftershock rate (assumed proportional to the local stressing rate) and the postseismic relaxation are driven by the loading imposed by postseismic slip on the brittle creep fault zone (BCFZ), the downdip extension of the fault zone below...
Water and agricultural-chemical transport in a Midwestern, tile-drained watershed: Implications for conservation practices
Nancy T. Baker, Wesley W. Stone, Jeffrey W. Frey, John T. Wilson
2007, Fact Sheet 2007-3084
The study of agricultural chemicals is one of five national priority topics being addressed by the National Water-Quality Assessment (NAWQA) Program in its second decade of studies, which began in 2001. Seven watersheds across the Nation were selected for the NAWQA agricultural-chemical topical study. The watersheds selected represent a range...
Historic distribution and challenges to bison recovery in the northern Chihuahuan Desert
Rurik List, Gerardo Ceballos, Charles Curtin, Peter J. Gogan, Jesus Pacheco, Joe Truett
2007, Conservation Biology (21) 1487-1494
Ecologists and conservationists have long assumed that large grazers, including bison (Bison bison), did not occur in post-Pleistocene southwestern North America. This perception has been influential in framing the debate over conservation and land use in the northern Chihuahuan Desert. The lack of an evolutionary history of large grazers...
Mineral resource of the month: industrial sand and gravel
Thomas Dolley
2007, Geotimes (2007)
With many diverse uses, industrial sand and gravel, also known as silica sand, is one of the most important nonmetallic minerals in the world. Industrial sand and gravel is a mining industry term used for sands that have a very high percentage of silicon dioxide, or greater than 95 percent...
Nitrogen isotopes as indicators of NOx source contributions to atmospheric nitrate deposition across the midwestern and northeastern United States
Emily M. Elliott, Carol Kendall, Scott D. Wankel, Douglas A. Burns, E.W. Boyer, K. Harlin, Daniel J Bain, T.J. Butler
2007, Environmental Science & Technology (41) 7661-7667
Global inputs of NOx are dominated by fossil fuel combustion from both stationary and vehicular sources and far exceed natural NOx sources. However, elucidating NOx sources to any given location remains a difficult challenge, despite the need for this information to develop sound regulatory and mitigation strategies. We present results from a regional-scale...
Geologic controls on movement of produced-water releases at US geological survey research Site A, Skiatook lake, Osage county, Oklahoma
James K. Otton, Robert A. Zielinski, Bruce D. Smith, Marvin M. Abbott
2007, Applied Geochemistry (22) 2138-2154
Highly saline produced water was released from multiple sources during oil field operations from 1913 to 1973 at the USGS research Site A on Skiatook Lake in northeastern Oklahoma. Two pits, designed to hold produced water and oil, were major sources for release...
Advances and opportunities in assessing contaminant sensitivity of freshwater mussel (unionidae) early life stages
T Augspurger, F.J. Dwyer, C.G. Ingersoll, C.M. Kane
2007, Environmental Toxicology and Chemistry (26) 2025-2028
Freshwater mussels (family Unionidae, also referred to as freshwater pearly mussels, unionids, or naiades) are one of North America’s most endangered faunal groups. Near unanimity exists in characterizations of the imperilment of these ecologically, economically, and culturally important bivalve mollusks. Freshwater mussels are a renewable resource supporting a shell industry...
Assessment and management of dead-wood habitat
Joan Hagar
2007, Open-File Report 2007-1054
The Bureau of Land Management (BLM) is in the process of revising its resource management plans for six districts in western and southern Oregon as the result of the settlement of a lawsuit brought by the American Forest Resource Council. A range of management alternatives is being considered and evaluated...
Estimation of gonad volume, fecundity, and reproductive stage of shovelnose sturgeon using sonography and endoscopy with application to the endangered pallid sturgeon
J.L. Bryan, M. L. Wildhaber, D. M. Papoulias, A. J. DeLonay, D. E. Tillitt, M.L. Annis
2007, Journal of Applied Ichthyology (23) 411-419
Most species of sturgeon are declining in the Mississippi River Basin of North America including pallid (Scaphirhynchus albus F. and R.) and shovelnose sturgeons (S. platorynchus R.). Understanding the reproductive cycle of sturgeon in the Mississippi River Basin is important in evaluating the status and viability of sturgeon populations. We used non-invasive,...
Blue jays nest in an unusual structure
Erin L. Muths, Curtis P. Lyons, James A. Sedgwick
2007, The Passenger Pigeon (69) 29-34
We describe a successful Blue Jay (Cyanocitta cristata) nest in an unusual structure on the side of a building. The nest was located near the edge of the species' range along the Front Range of the Rocky Mountains in Colorado. The nest was completely obvious, suggesting that the structure itself...
Mycobacterium avium subsp. paratuberculosis in scavenging mammals in Wisconsin
Jennifer L. Anderson, Jennifer K. Meece, Jeff J. Koziczkowski, Dorn L. Clark Jr., Roy P. Radcliff, Cherrie A. Nolden, Michael D. Samuel, Jay L. E. Ellingson
2007, Journal of Wildlife Diseases (43) 302-308
The presence of Mycobacterium avium subsp. paratuberculosis (MAP) in non-ruminant wildlife has raised questions regarding the role of these species in Johne's disease transmission. In this study we tested 472 tissues from 212 animals of six different species of scavenging mammals. All animals were taken from within a 210-square-mile...
U.S. Geological Survey scientific activities in the exploration of Antarctica: 1946-2006 record of personnel in Antarctica and their postal cachets: U.S. Navy (1946-48, 1954-60), International Geophysical Year (1957-58), and USGS (1960-2006)
Tony K. Meunier, Richard S. Williams Jr., Jane G. Ferrigno
2007, Open-File Report 2006-1116
Antarctica, a vast region encompassing 13.2 million km2 (5.1 million mi2), is considered to be one of the most important scientific laboratories on Earth. During the past 60 years, the USGS, in collaboration and with logistical support from the National Science Foundation's Office of Polar Programs, has sent 325 USGS...
A comparison of near-bed acoustic backscatter and laser diffraction measurements of suspended sediments
P.D. Thorne, Yogesh C. Agrawal, D.A. Cacchione
2007, IEEE Journal of Oceanic Engineering (32) 225-235
As part of the U.S. Office of Naval Research (ONR, Arlington, VA) mine burial program, an experiment was conducted off the pier at Santa Cruz, CA, to measure the near-bed suspended sediment reference concentration under waves and currents. Two tripods were deployed to carry out the measurements; one consisting mainly...
Chemical contamination of the Rybinsk Reservoir, northwest Russia: Relationship between liver polychlorinated biphenyls (PCB) content and health indicators in bream (Abramis brama)
Grigorii M. Chuiko, Donald E. Tillitt, James L. Zajicek, Boris A. Flerov, Vera M. Stepanova, Yuri Y. Zhelnin, Vera A. Podgornaya
2007, Chemosphere (67) 527-536
The Rybinsk Reservoir (Russia) is the largest artificial waterbody in Europe (4550 km2) and provides drinking water for population of the cities located along the coast line. Industrialization in Cherepovets at the northeastern portion of the reservoir, including one of the largest metallurgical facilities in Europe, has resulted in chemical contamination...
From buttes to bowls: Repeated relief inversion in the landscape of the Colorado Piedmont
M.L. Morgan, Vincent Matthews, F. Gutierrez, J.P. Thorson, Richard F. Madole, P.R. Hanson
2007, GSA Field Guides (10) 203-215
Mesas and buttes of the central Colorado Piedmont are composed of at least two distinct rock types, which differ in their cohesiveness and resistance to erosion. The lower parts of the exposed stratigraphic section are poorly cemented, Upper Cretaceous to Middle Eocene sandstones of the Dawson Formation. The caprocks are...
Heavy-mineral provenance in an estuarine environment, Willapa Bay, Washington, USA: palaeogeographic implications and estuarine evolution
Gretchen Luepke Bynum
2007, Developments in Sedimentology (58) 587-605
Modern sediments from representative localities in Willapa Bay, Washington, comprise two principal heavy-mineral suites. One contains approximately equivalent amounts of hornblende, orthopyroxene, and clinopyroxene; this is derived from the Columbia River, which discharges into the Pacific Ocean a short distance south of the bay. The other suite, dominated by clinopyroxene,...
Uranium(VI) release from contaminated vadose zone sediments: Estimation of potential contributions from dissolution and desorption
Deborah L. Bond, James A. Davis, John M. Zachara
2007, Book chapter, Developments in earth and environmental sciences
A key difficulty in developing accurate, science-based conceptual models for remediation of contaminated field sites is the proper accounting of multiple coupled geochemical and hydrologic processes. An example of such a difficulty is the separation of desorption and dissolution processes in releasing contaminants from sediments to groundwaters; very few studies are found...
Glacial landforms on German Bank, Scotian Shelf: evidence for Late Wisconsinan ice-sheet dynamics and implications for the formation of De Geer moraines
Brian J. Todd, Page C. Valentine, Oddvar Longva, John Shaw
2007, Boreas (36) 148-169
The extent and behaviour of the southeast margin of the Laurentide Ice Sheet in Atlantic Canada is of significance in the study of Late Wisconsinan ice sheet-ocean interactions. Multibeam sonar imagery of subglacial, ice-marginal and glaciomarine landforms on German Bank, Scotian Shelf, provides evidence of the pattern of glacial-dynamic events...
Continental margin sedimentation: From sediment transport to sequence stratigraphy
Charles A. Nittrouer, James A. Austin, Michael E. Field, Joseph H. Kravitz, James P. M. Syvitski, Patricia L. Wiberg, editor(s)
2007, Book
This volume on continental margin sedimentation brings together an expert editorial and contributor team to create a state-of-the-art resource. Taking a global perspective, the book spans a range of timescales and content, ranging from how oceans transport particles, to how thick rock sequences are formed on continental margins.- Summarizes and...
Spatial analysis of land use and shallow groundwater vulnerability in the watershed adjacent to Assateague Island National Seashore, Maryland and Virginia, USA
A.E. LaMotte, E.A. Greene
2007, Environmental Geology (52) 1413-1421
Spatial relations between land use and groundwater quality in the watershed adjacent to Assateague Island National Seashore, Maryland and Virginia, USA were analyzed by the use of two spatial models. One model used a logit analysis and the other was based on geostatistics. The models were developed and compared on...
