Precipitation zones of west-central Nevada
Thomas J. Lopes, Rose L. Medina
2007, Journal of the Nevada Water Resources Association (4) 1-18
Whether Nevada can sustain its fast rate of growth depends in part on accurately quantifying the amount of water that is available, including precipitation. The Precipitation-Zone Method (PZM) is a way of estimating mean annual precipitation at any point. The PZM was developed using data from west-central Nevada and northeastern...
A tale of two storms: Surges and sediment deposition from Hurricanes Andrew and Wilma in Florida’s southwest coast mangrove forests
Thomas J. Smith III, Gordon H. Anderson, Ginger Tiling
2007, Circular 1306-6G
Hurricanes can be very different from each other. Here we examine the impacts that two hurricanes, Andrew and Wilma, had in terms of storm surge and sediment deposition on the southwest coast of Florida. Although Wilma was the weaker storm, it had the greater impact. Wilma had the higher storm...
Mars reconnaissance orbiter's high resolution imaging science experiment (HiRISE)
Alfred S. McEwen, Eric M. Eliason, James W. Bergstrom, Nathan T. Bridges, Candice J. Hansen, W. Alan Delamere, John A. Grant, Virginia C. Gulick, Kenneth E. Herkenhoff, Laszlo P. Keszthelyi, Randolph L. Kirk, Michael T. Mellon, Steven W. Squyres, Nicolas Thomas, Catherine M. Weitz
2007, Journal of Geophysical Research E: Planets (112)
The HiRISE camera features a 0.5 m diameter primary mirror, 12 m effective focal length, and a focal plane system that can acquire images containing up to 28 Gb (gigabits) of data in as little as 6 seconds. HiRISE will provide detailed images (0.25 to 1.3 m/pixel) covering ∼1% of...
Larval exposure to 4-nonylphenol and 17β-estradiol affects physiological and behavioral development of seawater adaptation in Atlantic salmon smolts
Darrren T. Lerner, Bjorn Thrandur Bjornsson, Stephen D. McCormick
2007, Environmental Science & Technology (41) 4479-4485
Population declines of anadromous salmonids are attributed to anthropogenic disturbances including dams, commercial and recreational fisheries, and pollutants, such as estrogenic compounds. Nonylphenol (NP), a xenoestrogen, is widespread in the aquatic environment due to its use in agricultural, industrial, and household products. We exposed Atlantic salmon yolk-sac larvae to waterborne...
Empirical evaluation of decision support systems: Needs, definitions, potential methods, and an example pertaining to waterfowl management
R.S. Sojda
2007, Environmental Modelling and Software (22) 269-277
Decision support systems are often not empirically evaluated, especially the underlying modelling components. This can be attributed to such systems necessarily being designed to handle complex and poorly structured problems and decision making. Nonetheless, evaluation is critical and should be focused on empirical testing whenever possible. Verification and validation, in...
Thiamine and fatty acid content of walleye tissue from three southern U.S. reservoirs
D. C. Honeyfield, C.S. Vandergoot, P.W. Bettoli, J. P. Hinterkopf, J.L. Zajicek
2007, Journal of Aquatic Animal Health (19) 84-93
We determined the thiamine concentration in egg, muscle, and liver tissues of walleyes Sander vitreus and the fatty acid content of walleye eggs from three southern U.S. reservoirs. In two Tennessee reservoirs (Dale Hollow and Center Hill), in which there were alewives Alosa pseudoharengus in the forage base, natural recruitment...
Understanding knowledge and perceptions of bats among residents of Fort Collins, Colorado
Natalie R. Sexton, Susan C. Stewart
2007, Open-File Report 2007-1245
As regional urbanization increases in Colorado, so do interactions between humans and wildlife. Where previous habitat has been reduced due to urbanization and development, a few bat species that easily adapt to new environments now roost in homes and buildings (Kunz and Reynolds, 2003). Bats frequently serve as reservoirs of...
USGS National Wildlife Health Center's Quarterly Mortality Report
K. A. Converse, G. McLaughlin
2007, Supplement to the Journal of Wildlife Diseases (43)
Variation in the establishment of a non-native annual grass influences competitive interactions with Mojave Desert perennials
L.A. DeFalco, G.C.J. Fernandez, R.S. Nowak
2007, Biological Invasions (9) 293-307
Competition between native and non-native species can change the composition and structure of plant communities, but in deserts, the highly variable timing of resource availability also influences non-native plant establishment, thus modulating their impacts on native species. In a field experiment, we varied densities of the non-native annual grass Bromus...
Avian chlamydiosis
A. A. Andersen, J. Christian Franson
Nancy J. Thomas, D. Bruce Hunter, Carter T. Atkinson, editor(s)
2007, Book chapter, Infectious diseases of wild birds
This chapter contains section titled:IntroductionSynonymsHistoryDistribution and Host RangeEpizootiologyClinical SignsPathogenesisPathologyDiagnosisImmunityPublic Health ConcernsDomestic Animal Health ConcernsWildlife Population ImpactsTreatment and ControlManagement ImplicationsUnpublished DataLiterature Cited...
Right whale mortality: a message from the dead to the living
M.J. Moore, W.A. McLellan, P.-Y. Daoust, R. K. Bonde, A.R. Knowlton
S.D. Kraus, R. Rolland, editor(s)
2007, Book chapter, The Urban Whale: North Atlantic Right Whales at the Crossroads
Abstract not supplied at this time...
Simulation of flow and habitat conditions under ice, Cache la Poudre River - January 2006
Terry Waddle
2007, Open-File Report 2007-1282
The U.S. Forest Service authorizes the occupancy and use of Forest Service lands by various projects, including water storage facilities, under the Federal Land Policy and Management Act. Federal Land Policy and Management Act permits can be renewed at the end of their term. The U.S. Forest Service analyzes the...
Coupling chemical weathering with soil production across soil-mantled landscapes
B.C. Burke, A.M. Heimsath, A. F. White
2007, Earth Surface Processes and Landforms (32) 853-873
Soil-covered upland landscapes constitute a critical part of the habitable world. Our understanding of how they evolve as a function of different climatic, tectonic and geological regimes is important across a wide range of disciplines and depends, in part, on understanding the links between...
Infectious Diseases of Wild Birds
N. J. Thomas, D. Bruce Hunter, C. T. Atkinson
2007, Book
Fault locking, block rotation and crustal deformation in the Pacific Northwest
Robert McCaffrey, Anthony I. Qamar, Robert W. King, Ray E. Wells, G. Khazaradze, C.A. Williams, C.W. Stevens, J.J. Vollick, P.C. Zwick
2007, Geophysical Journal International (169) 1315-1340
We interpret Global Positioning System (GPS) measurements in the northwestern United States and adjacent parts of western Canada to describe relative motions of crustal blocks, locking on faults and permanent deformation associated with convergence between the Juan de Fuca and North American plates. To estimate angular velocities of the...
Chronic Wasting Disease Positive Tissue Bank
Scott D. Wright
2007, Fact Sheet 2007-3059
In 2005, the USGS National Wildlife Health Center entered into an agreement with the Wyoming Game and Fish Department and the Department of Veterinary Sciences at the University of Wyoming to produce a collection of positive tissues from cervids intentionally infected with chronic wasting disease. This agreement was facilitated through...
Duration of a large Mafic intrusion and heat transfer in the lower crust: A SHRIMP U-Pb zircon Study in the Ivrea-Verbano Zone (Western Alps, Italy)
G. Peressini, J. E. Quick, S. Sinigoi, A.W. Hofmann, M. Fanning
2007, Journal of Petrology (48) 1185-1218
The Ivrea-Verbano Zone in the western Italian Alps contains one of the world's classic examples of ponding of mantle-derived, mafic magma in the deep crust. Within it, a voluminous, composite mafic pluton, the Mafic Complex, intruded lower-crustal, high-grade paragneiss of the Kinzigite Formation during Permian-Carboniferous time, and is now exposed...
Identification of functional corridors with movement characteristics of brown bears on the Kenai Peninsula, Alaska
T.A. Graves, S. Farley, M.I. Goldstein, C. Servheen
2007, Landscape Ecology (22) 765-772
We identified primary habitat and functional corridors across a landscape using Global Positioning System (GPS) collar locations of brown bears (Ursus arctos). After deriving density, speed, and angular deviation of movement, we classified landscape function for a group of animals with a cluster analysis. We described areas with high amounts...
USGS National Wildlife Health Center's Quarterly Wildlife Mortality Report
K. A. Converse, Krysten Schuler, G. McLaughlin, Mark Jankowski, Jennifer Bradsby
2007, Supplement to the Journal of Wildlife Diseases (43)
Infection by a black spot-causing species of Uvulifer and associated opercular alterations in fishes from a high-desert stream in Wyoming
M.C. Quist, M.R. Bower, W.A. Hubert
2007, Diseases of Aquatic Organisms (78) 129-136
Black spot is a common disease syndrome of freshwater fishes. This study provides information on the rank of density of the black spot agent and opercular bone alterations associated with at least one digenean, Uvulifer sp., infecting native and non-native catostomids and cyprinids of the Upper Colorado River Basin. We...
Land area changes in coastal Louisiana after Hurricanes Katrina and Rita
John A. Barras
2007, Circular 1306-5B
Comparison of classified Landsat Thematic Mapper (TM) satellite imagery acquired before and after the landfalls of Hurricanes Katrina (August 29, 2005) and Rita (September 24, 2005) demonstrated that water area increased by 217 mi2 (562 km2) in coastal Louisiana. Approximately 82 mi2 (212 km2) of new water areas were in...
Characteristics of roost sites used by burrowing owls (Athene cunicularia) wintering in Southern Texas
D.L. Williford, M.C. Woodin, M.K. Skoruppa, G.C. Hickman
2007, Southwestern Naturalist (52) 60-66
The western burrowing owl (Athene cunicularia hypugaea) is threatened in Mexico, endangered in Canada, and declining in most of the western United States. Most previous research has focused on burrowing owl breeding biology, and little is known about its winter ecology. We determined characteristics of roost sites used by western...
Effects of dietary selenium on tissue concentrations,pathology, oxidative stress, and immune function in common eiders (Somateria mollissima)
J. Christian Franson, David Hoffman, Alicia M. Wells-Berlin, Matthew C. Perry, Valerie I. Shearn-Bochsler, Daniel L. Finley, Paul L. Flint, Tuula E. Hollmén
2007, Journal of Toxicology and Environmental Health, Part A (70) 861-874
Common eiders (Somateria mollissima) were fed added Se (as L-selenomethionine) in concentrations increasing from 10 to 80 ppm in a pilot study (Study 1) or 20 (low exposure) and up to 60 (high exposure) ppm Se in Study 2. Body weights of Study 1 ducks and high-exposure ducks in Study...
High arsenic concentrations and enriched sulfur and oxygen isotopes in a fractured-bedrock ground-water system
G. Lipfert, W.C. Sidle, A.S. Reeve, R. A. Ayuso, A.J. Boyce
2007, Chemical Geology (242) 385-399
Ground water with high arsenic concentrations (up to 26.6????mol L- 1) has sulfate enriched in 34S and 18O in the fractured-bedrock, ground-water system of the Kelly's Cove watershed, Northport, Maine, USA. The ranges of sulfur and oxygen isotope values in aqueous sulfate, ??34S[SO4] and ??18O[SO4], at the Kelly's Cove watershed...
Joint inversion of high-frequency surface waves with fundamental and higher modes
Y. Luo, J. Xia, J. Liu, Q. Liu, S. Xu
2007, Journal of Applied Geophysics (62) 375-384
Joint inversion of multimode surface waves for estimating the shear (S)-wave velocity has received much attention in recent years. In this paper, we first analyze sensitivity of phase velocities of multimodes of surface waves for a six-layer earth model, and then we invert surface-wave dispersion curves of the theoretical model...
