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Experimental West Nile virus infection in Eastern Screech Owls (Megascops asio)
Nicole M Nemeth, D. Caldwell Hahn, D. H. Gould, R. A. Bowen
2006, Avian Diseases (50) 252-258
This study evaluated the potential effects of different concentrations of bleached/unbleached kraft mill effluent (B/UKME) on several reproductive endpoints in adult largemouth bass (Micropterus salmoides). The kraft mill studied produces a 50/50 mix of bleached/unbleached market pulp with an estimated release of 36 million gal of effluent/day. Bleaching sequences were...
Growth and collapse of Hawaiian volcanoes
Michelle L. Coombs, Barry W. Eakins, Peter F. Cervelli
2006, Journal of Volcanology and Geothermal Research (151) vii-viii
This special issue is an outgrowth of a session of the same name held at the 2003 Fall Meeting of the American Geophysical Union (AGU) in San Francisco. The session served dual purposes: to highlight recent advances in our understanding of the development and internal structure of Hawaiian volcanoes, and...
Evaluating genetic viability of pronghorn in Wind Cave National Park
Jonathan A. Jenks, Christopher N. Jacques, Jaret D. Sievers, Robert W. Klaver, R. Terry Bowyer, Daniel E. Roddy
2006, Prairie Naturalist (38) 155-165
The pronghorn (Antilocapra americana) was reintroduced into Wind Cave National Park, South Dakota, in 1914 and thus, has inhabited the Park for almost a century. A decline in the population has raised concern for the continued existence of pronghorn inside Wind Cave National Park. Historically, pronghorn numbers reached greater than...
Effects of summer flow augmentation on the migratory behavior and survival of juvenile Snake River fall Chinook salmon. Annual report 2005
Kenneth F. Tiffan, William P. Connor
2006, Report
This report summarizes results of research activities conducted in 2004 and years previous to aid in the management and recovery of fall Chinook salmon Oncorhynchus tshawytscha in the Columbia River basin. For detailed summaries, we refer the reader to the abstracts given on the second page of each chapter. The...
Conservation of Toll-like receptor signaling pathways in teleost fish
M. K. Purcell, K.D. Smith, A. Aderem, L. Hood, J. R. Winton, J.C. Roach
2006, Comparative Biochemistry and Physiology, Part D: Genomics and Proteomics (1) 77-88
In mammals, toll-like receptors (TLR) recognize ligands, including pathogen-associated molecular patterns (PAMPs), and respond with ligand-specific induction of genes. In this study, we establish evolutionary conservation in teleost fish of key components of the TLR-signaling pathway that act as switches for differential gene induction, including MYD88, TIRAP, TRIF, TRAF6, IRF3,...
Intra-seasonal NDVI change projections in semi-arid Africa
Christopher C. Funk, Molly E. Brown
2006, Remote Sensing of Environment (101) 249-256
Early warning systems (EWS) tend to focus on the identification of slow onset disasters such famine and epidemic disease. Since hazardous environmental conditions often precede disastrous outcomes by many months, effective monitoring via satellite and in situ observations can successfully guide mitigation activities. Accurate short term forecasts of NDVI could...
Strand-specific, real-time RT-PCR assays for quantification of genomic and positive-sense RNAs of the fish rhabdovirus, Infectious hematopoietic necrosis virus
Maureen K. Purcell, S. Alexandra Hart, Gael Kurath, James R. Winton
2006, Journal of Virological Methods (132) 18-24
The fish rhabdovirus, Infectious hematopoietic necrosis virus (IHNV), is an important pathogen of salmonids. Cell culture assays have traditionally been used to quantify levels of IHNV in samples; however, real-time or quantitative RT-PCR assays have been proposed as a rapid alternative. For viruses having a single-stranded, negative-sense RNA genome, standard qRT-PCR assays...
Changes in seasonal nearshore zooplankton abundance patterns in Lake Ontario following establishment of the exotic predator Cercopagis pengoi
David M. Warner, Lars G. Rudstam, Hugues Benoit, Edward L. Mills, Ora E. Johannsson
2006, Journal of Great Lakes Research (32) 531-542
Cercopagis pengoi, a zooplanktivore first discovered in Lake Ontario in 1998, may reduce availability of prey for planktivorous fish. Cercoapgis pengoi is most abundant in late summer and fall. Therefore, we hypothesized that abundance of small zooplankton (bosminids and cyclopoids) species would decrease at that time. To determine if the establishment of C. pengoi was...
The influence of hydrous Mn–Zn oxides on diel cycling of Zn in an alkaline stream draining abandoned mine lands
Christopher L. Shope, Ying Xie, Christopher H. Gammons
2006, Applied Geochemistry (21) 476-491
Many mining-impacted streams in western Montana with pH near or above neutrality display large (up to 500%) diel cycles in dissolved Zn concentrations. The streams in question typically contain boulders coated with a thin biofilm, as well as black mineral crusts composed of hydrous Mn–Zn oxides. Laboratory mesocosm experiments simulating...
White sturgeon mitigation and restoration in the Columbia and Snake rivers upstream from Bonneville Dam, Annual Progress Report April 2004 - March 2005. Report C
M.J. Parsley, P. Kofoot
2006, Report
River discharge and water temperatures that occurred during April through July 2004 provided conditions suitable for spawning by white sturgeon downstream from Bonneville, The Dalles, John Day, and McNary dams. Optimal spawning temperatures in the four tailraces occurred for 3-4 weeks and coincided with the peak of the river hydrograph....
Sensitivity of Earthquake Loss Estimates to Source Modeling Assumptions and Uncertainty
Paul A. Reasenberg, Nan Shostak, Sharon Terwilliger
2006, Open-File Report 2006-1020
Introduction: This report explores how uncertainty in an earthquake source model may affect estimates of earthquake economic loss. Specifically, it focuses on the earthquake source model for the San Francisco Bay region (SFBR) created by the Working Group on California Earthquake Probabilities. The loss calculations are made using HAZUS-MH,...
Vitrinite Reflectance Data for the Wind River Basin, Central Wyoming
Thomas M. Finn, Laura N.R. Roberts, Mark J. Pawlewicz
2006, Open-File Report 2006-1015
Introduction: The Wind River Basin is a large Laramide (Late Cretaceous through Eocene) structural and sedimentary basin that encompasses about 7,400 mi2 in central Wyoming. The basin boundaries are defined by fault-bounded Laramide uplifts that surround it, including the Owl Creek and Bighorn Mountains to the north, Wind River...
Analysis of sensitivity of simulated recharge to selected parameters for seven watersheds modeled using the precipitation-runoff modeling system
D. Matthew Ely
2006, Scientific Investigations Report 2006-5041
Recharge is a vital component of the ground-water budget and methods for estimating it range from extremely complex to relatively simple. The most commonly used techniques, however, are limited by the scale of application. One method that can be used to estimate ground-water recharge includes process-based models that compute distributed...
Estimating landslide losses - preliminary results of a seven-State pilot project
Lynn M. Highland
2006, Open-File Report 2006-1032
Introduction: In 2001, the U.S. Geological Survey Landslide Hazards Program provided funding for seven State geological surveys to report on the status of landslide investigation strategies in each of their States, and to suggest improved ways to approach the tracking of landslides, their effects, losses associated with the...
Volcano hazards: A national threat
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3014
When the violent energy of a volcano is unleashed, the results are often catastrophic. The risks to life, property, and infrastructure from volcanoes are escalating as more and more people live, work, play, and travel in volcanic regions. Since 1980, 45 eruptions and 15 cases of notable volcanic unrest have...