Model-based evaluation of highly and low pathogenic avian influenza dynamics in wild birds
Viviane Hénaux, Michael D. Samuel, Christine M. Bunck
2010, PLoS ONE (5)
There is growing interest in avian influenza (AI) epidemiology to predict disease risk in wild and domestic birds, and prevent transmission to humans. However, understanding the epidemic dynamics of highly pathogenic (HPAI) viruses remains challenging because they have rarely been detected in wild birds. We used modeling to integrate available...
Use of geochemical, isotopic, and age tracer data to develop models of groundwater flow for the purpose of water management, northern High Plains aquifer, USA
Peter B. McMahon, C. P. Carney, E. P. Poeter, Steven M. Peterson
2010, PNAS (25) 910-922
A prolonged drought in the High Plains of Nebraska prompted the use of groundwater for cooling at the largest coal-fired power plant in the State. Prior to the drought, groundwater was used primarily for irrigation and the power plant relied exclusively on surface water stored in a nearby reservoir for...
Influence of hummocks and emergent vegetation on hydraulic performance in a surface flow wastewater treatment wetland
Steffanie H. Keefe, Joan S. Daniels, Robert L. Runkel, Roland D. Wass, Eric A. Stiles, Larry B. Barber
2010, Water Resources Research (46)
A series of tracer experiments were conducted biannually at the start and end of the vegetation growing season in a surface flow wastewater treatment wetland located near Phoenix, AZ. Tracer experiments were conducted prior to and following reconfiguration and replanting of a 1.2 ha treatment wetland from its original design...
Aviation response to a widely dispersed volcanic ash and gas cloud from the August 2008 eruption of Kasatochi, Alaska, USA
Marianne Guffanti, David J. Schneider, Kristi L. Wallace, Tony Hall, Dov R. Bensimon, Leonard J. Salinas
2010, Journal of Geophysical Research D: Atmospheres (115)
The extensive volcanic cloud from Kasatochi's 2008 eruption caused widespread disruptions to aviation operations along Pacific oceanic, Canadian, and U.S. air routes. Based on aviation hazard warnings issued by the National Oceanic and Atmospheric Administration, U.S. Geological Survey, the Federal Aviation Administration, and Meteorological Service of Canada, air carriers largely...
Effect of clay content and mineralogy on frictional sliding behavior of simulated gouges: binary and ternary mixtures of quartz, illite, and montmorillonite
Sheryl Tembe, David A. Lockner, Teng-Fong Wong
2010, Journal of Geophysical Research B: Solid Earth (115)
We investigated the frictional sliding behavior of simulated quartz-clay gouges under stress conditions relevant to seismogenic depths. Conventional triaxial compression tests were conducted at 40 MPa effective normal stress on saturated saw cut samples containing binary and ternary mixtures of quartz, montmorillonite, and illite. In all cases, frictional strengths of...
A procedure for radiometric recalibration of Landsat 5 TM reflective-band data
G. Chander, M.O. Haque, E. Micijevic, J. A. Barsi
2010, IEEE Transactions on Geoscience and Remote Sensing (48) 556-574
From the Landsat program's inception in 1972 to the present, the Earth science user community has been benefiting from a historical record of remotely sensed data. The multispectral data from the Landsat 5 (L5) Thematic Mapper (TM) sensor provide the backbone for this extensive archive. Historically, the radiometric calibration procedure...
Low-altitude aerial color digital photographic survey of the San Andreas Fault
David K. Lynch, Kenneth W. Hudnut, David S.P. Dearborn
2010, Seismological Research Letters (81) 453-459
Ever since 1858, when Gaspard-Félix Tournachon (pen name Félix Nadar) took the first aerial photograph (Professional Aerial Photographers Association 2009), the scientific value and popular appeal of such pictures have been widely recognized. Indeed, Nadar patented the idea of using aerial photographs in mapmaking and surveying. Since then, aerial imagery...
Diel behavior of rearing fall Chinook salmon
Kenneth F. Tiffan, Tobias J. Kock, Joseph J. Skalicky
2010, Northwestern Naturalist (91) 342-345
In fisheries science, habitat use is often inferred when fish are sampled or observed in a particular location. Physical habitat is typically measured where fish are found, and thus deemed important to habitat use. Although less common, a more informative approach is to measure or observe fish behavior within given...
Prevalence of antibodies to type A influenza virus in wild avian species using two serologic assays
Justin D. Brown, M. Page Luttrell, Roy D. Berghaus, Whitney Kistler, Shamus P. Keeler, Andrea Howey, Benjamin Wilcox, Jeffrey S. Hall, Larry Niles, Amanda Dey, Gregory Knutsen, Kristen Fritz, David E. Stallknecht
2010, Journal of Wildlife Diseases (46) 896-911
Serologic testing to detect antibodies to avian influenza (AI) virus has been an underused tool for the study of these viruses in wild bird populations, which traditionally has relied on virus isolation and reverse transcriptase-polymerase chain reaction (RT-PCR). In a preliminary study, a recently developed commercial blocking enzyme-linked immunosorbent assay...
Inference of lithologic distributions in an alluvial aquifer using airborne transient electromagnetic surveys
Jesse E. Dickinson, D. R. Pool, R.W. Groom, L.J. Davis
2010, Geophysics (75) WA149-WA161
An airborne transient electromagnetic (TEM) survey was completed in the Upper San Pedro Basin in southeastern Arizona to map resistivity distributions within the alluvial aquifer. This investigation evaluated the utility of 1D vertical resistivity models of the TEM data to infer lithologic distributions in an alluvial aquifer. Comparisons of the...
Water-resources data for the United States: water year 2010
Water Resources Division, U.S. Geological Survey
2010, Water Data Report 2010
Water resources data are published annually for use by engineers, scientists, managers, educators, and the general public. These archival products supplement direct access to current and historical water data provided by NWISWeb. Beginning with Water Year 2006, annual water data reports are available as individual electronic Site Data Sheets for...
Functional linear models to test for differences in prairie wetland hydraulic gradients
Mark C. Greenwood, Richard S. Sojda, Todd M. Preston
David A. Swayne, Wanhong Yang, A.A. Voinov, A. Rizzoli, T. Filatova, editor(s)
2010, Conference Paper, 2010 International Congress on Environmental Modelling and Software; Modelling for Environment's Sake, Fifth Biennial Meeting, Ottawa, Canada
Functional data analysis provides a framework for analyzing multiple time series measured frequently in time, treating each series as a continuous function of time. Functional linear models are used to test for effects on hydraulic gradient functional responses collected from three types of land use in Northeastern Montana at fourteen...
A self-trained classification technique for producing 30 m percent-water maps from Landsat data
Jennifer R. Rover, Bruce K. Wylie, Lei Ji
2010, International Journal of Remote Sensing (31) 2197-2203
Small bodies of water can be mapped with moderate-resolution satellite data using methods where water is mapped as subpixel fractions using field measurements or high-resolution images as training datasets. A new method, developed from a regression-tree technique, uses a 30 m Landsat image for training the regression tree that, in...
Diet of lake trout and burbot in northern Lake Michigan during spring: Evidence of ecological interaction
Gregory R. Jacobs, Charles P. Madenjian, David B. Bunnell, Jeffrey D. Holuszko
2010, Journal of Great Lakes Research (36) 312-317
We used analyses of burbot (Lota lota) and lake trout (Salvelinus namaycush) diets taken during spring gill-net surveys in northern Lake Michigan in 2006-2008 to investigate the potential for competition and predator-prey interactions between these two species. We also compared our results to historical data from 1932. During 2006-2008, lake...
Fault zone structure from topography: signatures of en echelon fault slip at Mustang Ridge on the San Andreas Fault, Monterey County, California
Stephen B. DeLong, George E. Hilley, Michael J. Rymer, Carol Prentice
2010, Tectonics (29)
We used high-resolution topography to quantify the spatial distribution of scarps, linear valleys, topographic sinks, and oversteepened stream channels formed along an extensional step over on the San Andreas Fault (SAF) at Mustang Ridge, California. This location provides detail of both creeping fault landform development and complex fault zone kinematics....
Long-term trends in habitat use of offshore demersal fishes in western Lake Huron suggest large-scale ecosystem change
Stephen C. Riley, Jean V. Adams
2010, Transactions of the American Fisheries Society (139) 1322-1334
We estimated mean depths of capture for offshore demersal fish species, grouped into three habitat-based guilds (shallow benthic, pelagic, and deep benthic), using fall bottom trawl data (27–73 m) in the western main basin of Lake Huron from 1976 to 2007. The mean depth of capture of the shallow and...
Mechanisms for chemostatic behavior in catchments: implications for CO2 consumption by mineral weathering
David W. Clow, M. Alisa Mast
2010, Chemical Geology (269) 40-51
Concentrations of weathering products in streams often show relatively little variation compared to changes in discharge, both at event and annual scales. In this study, several hypothesized mechanisms for this “chemostatic behavior” were evaluated, and the potential for those mechanisms to influence relations between climate, weathering fluxes, and CO2 consumption...
Georeferencing the Large-Scale Aerial Photographs of a Great Lakes Coastal Wetland: A Modified Photogrammetric Method
Kurt P. Kowalski, Joel L. Grapentine
2010, Wetlands (30) 369-374
The geocontrol template method was developed to georeference multiple, overlapping analog aerial photographs without reliance upon conventionally obtained horizontal ground control. The method was tested as part of a long-term wetland habitat restoration project at a Lake Erie coastal wetland complex in the U.S. Fish and Wildlife Service Ottawa National...
Method for calculating self-noise spectra and operating ranges for seismographic inertial sensors and recorders
John R. Evans, F. Followill, Charles R. Hutt, R.P. Kromer, R.L. Nigbor, A. T. Ringler, J.M. Steim, E. Wielandt
2010, Seismological Research Letters (81) 640-646
Understanding the performance of sensors and recorders is prerequisite to making appropriate use of them in seismology and earthquake engineering. This paper explores a critical aspect of instrument performance, the “self” noise level of the device and the amplitude range it can usefully record. Self noise limits the smallest signals,...
Factors associated with hunter success for ducks on state-owned lands in Illinois, USA
Joshua D. Stafford, Aaron T. Pearse, Christopher S. Hine, Aaron P. Yetter, Michelle M. Horath
2010, Wildlife Biology (16) 113-122
Factors that influence hunter success for waterfowl are subject to varying levels of control by managers. The relative influence of these factors is poorly understood, but such information may be valuable to guide management actions intended to promote successful hunting and communicate management decisions to constituents. We used bag-check data...
Molecular phylogeny of the spoonbills (Aves: Threskiornithidae) based on mitochondrial DNA
R. Terry Chesser, Carol K.L. Yeung, Cheng-Te Yao, Xiu-Hua Tian, Shou-Hsien Li
2010, Zootaxa (2603) 53-60
Spoonbills (genus Platalea) are a small group of wading birds, generally considered to constitute the subfamily Plataleinae (Aves: Threskiornithidae). We reconstructed phylogenetic relationships among the six species of spoonbills using variation in sequences of the mitochondrial genes ND2 and cytochrome b (total 1796 bp). Topologies of phylogenetic trees reconstructed using...
Models for inference in dynamic metacommunity systems
Robert M. Dorazio, Marc Kery, J. Andrew Royle, Matthias Plattner
2010, Ecology (91) 2466-2475
A variety of processes are thought to be involved in the formation and dynamics of species assemblages. For example, various metacommunity theories are based on differences in the relative contributions of dispersal of species among local communities and interactions of species within local communities. Interestingly, metacommunity theories continue to be...
Streamflow of 2009--Water year summary
Jian Xiaodong, David M. Wolock, Harry F. Lins, Steve Brady
2010, Fact Sheet 2010-3058
The maps and graph in this summary describe streamflow conditions for water-year 2009 (October 1, 2008 to September 30, 2009) in the context of the 80-year period 1930-2009, unless otherwise noted. The illustrations are based on observed data from the U.S. Geological Survey's National Streamflow Information Program. The period 1930-2009...
Estimating migratory game-bird productivity by integrating age ratio and banding data
G.S. Zimmerman, W.A. Link, M.J. Conroy, J.R. Sauer, K.D. Richkus, G. Scott Boomer
2010, Wildlife Research (37) 612-622
Context: Reproduction is a critical component of fitness, and understanding factors that influence temporal and spatial dynamics in reproductive output is important for effective management and conservation. Although several indices of reproductive output for wide-ranging species, such as migratory birds, exist, there has been no theoretical justification for their estimators...
Old data, new problems
Beth Middleton
2010, SWS Research Brief (2010-0002)
Old data are a gold standard in climate change research, and much more use should be made of these data sets to document changes in wetlands in recent decades. Key data sets for the study of climate or land use change effects on wetlands may include historical field studies. Old...
