Low-temperature MTBE biodegradation in aquifer sediments with a history of low, seasonal ground water temperatures
P. M. Bradley, J. E. Landmeyer
2006, Ground Water Monitoring and Remediation (26) 101-105
Sediments from two shallow, methyl tert‐butyl ether (MTBE)–contaminated aquifers, with mean ground water temperatures ∼10°C, demonstrated significant mineralization of [U‐14C] MTBE to 14CO2 at incubation temperatures as low as 4°C. These results indicate that microbial degradation can continue to contribute to the attenuation of MTBE in ground water under...
United States of America
D.E. Napton, Thomas R. Loveland
H. Geist, editor(s)
2006, Book chapter, Our Earth's changing land— An encyclopedia of land-use and land-cover change
No abstract available....
High-resolution seismic-reflection imaging 25 years of change in I-70 sinkhole, Russell County, Kansas
R. D. Miller, D.W. Steeples, J.L. Lambrecht, N. Croxton
2006, SEG Technical Program Expanded Abstracts (25) 1411-1415
Time-lapse seismic reflection imaging improved our understanding of the consistent, gradual surface subsidence ongoing at two sinkholes in the Gorham Oilfield discovered beneath a stretch of Interstate Highway 70 through Russell and Ellis Counties in Kansas in 1966. With subsidence occurring at a rate of around 10 cm per year...
Hydrologic-hydraulic analysis of the Toa Vaca Dam
T.-S. Heriberto, A.C. MillerArthur
2006, Conference Paper, Association of State Dam Safety Officials - Dam Safety 2006, Proceedings from the 2006 Annual Conference
[No abstract available]...
Ichthyophonus sp. in adult Chinook salmon (Oncorhynchus tshawytscha)
Diane G. Elliott
D.W. Bruno, D.G. Elliott, B. Nowak, editor(s)
2006, Conference Paper, EAFP 2005 Copenhagen Histopathology Workshop. Reproductive pathology and early life stages pathology: Notes and images
No abstract available....
USGS/National Wildlife Health Center's Quarterly Wildlife Mortality Report
R. Sohn, K. A. Converse, G. McLaughlin
2006, Supplement to the Journal of Wildlife Diseases (42)
USGS National Wildlife Health Center's Quarterly Wildlife Mortality Report
R. Sohn, K. A. Converse, G. McLaughlin
2006, Supplement to the Journal of Wildlife Diseases (42)
Lake sturgeon population characteristics in Rainy Lake, Minnesota and Ontario
W.E. Adams Jr., L.W. Kallemeyn, D.W. Willis
2006, Journal of Applied Ichthyology (22) 97-102
Rainy Lake contains a native population of lake sturgeon Acipenser fulvescens that has been largely unstudied. The aims of this study were to document the population characteristics of lake sturgeon in Rainy Lake and to relate environmental factors to year-class strength for this population. Gill-netting efforts throughout the study resulted...
The Amphibian Research and Monitoring Initiative (ARMI): 5-year report
Erin Muths, Alisa L. Gallant, Evan H. Campbell Grant, William A. Battaglin, David E. Green, Jennifer S. Staiger, Susan C. Walls, Margaret S. Gunzburger, Rick F. Kearney
2006, Scientific Investigations Report 2006-5224
The Amphibian Research and Monitoring Initiative (ARMI) is an innovative, multidisciplinary program that began in 2000 in response to a congressional directive for the Department of the Interior to address the issue of amphibian declines in the United States. ARMI’s formulation was cross-disciplinary, integrating U.S. Geological Survey scientists from Biology,...
Field responses of Prunus serotina and Asclepias syriaca to ozone around southern Lake Michigan
J. P. Bennett, E.A. Jepsen, J.A. Roth
2006, Environmental Pollution (142) 354-366
Higher ozone concentrations east of southern Lake Michigan compared to west of the lake were used to test hypotheses about injury and growth effects on two plant species. We measured approximately 1000 black cherry trees and over 3000 milkweed stems from 1999 to 2001 for this purpose. Black cherry branch...
Increased levels of IgE and autoreactive, polyreactive IgG in wild rodents: implications for the hygiene hypothesis
A.P. Devalapalli, A. Lesher, K. Shieh, J.S. Solow, M.L. Everett, A.S. Edala, P. Whitt, Renee R. Long, N. Newton, W. Parker
2006, Scandinavian Journal of Immunology (64) 125-136
To probe the potential role of Th1 versus Th2 reactivity underlying the hygiene hypothesis, intrinsic levels of Th1-associated and Th2-associated antibodies in the serum of wild rodents were compared with that in various strains of laboratory rodents. Studies using rat lung antigens as a target indicated that wild rats have...
USGS National Wildlife Health Center's Quartlerly Wildlife Mortality Report
K. A. Converse, G. McLaughlin, Lori Steckervetz
2006, Supplement to the Journal of Wildlife Diseases (42)
Multi-species patterns of avian cholera mortality in Nebraska's rainwater basin
Julie A. Blanchong, M.D. Samuel, G. Mack
2006, Journal of Wildlife Diseases (42) 81-91
Nebraska's Rainwater Basin (RWB) is a key spring migration area for millions of waterfowl and other avian species. Avian cholera has been endemic in the RWB since the 1970s and in some years tens of thousands of waterfowl have died from the disease. We evaluated patterns of avian cholera mortality...
West Nile virus antibody prevalence in wild mammals, southern Wisconsin
Douglas E. Docherty, Michael D. Samuel, C.A. Nolden, Kristina F. Egstad, Kathryn M. Griffin
2006, Emerging Infectious Diseases (12) 1982-1984
Twenty percent prevalence of West Nile virus antibody was found in free-ranging medium-sized Wisconsin mammals. No significant differences were noted in antibody prevalence with regard to sex, age, month of collection, or species. Our results suggest a similar route of infection in these mammals....
Drowned coralline algal dominated deposits off Lanai, Hawaii; carbonate accretion and vertical tectonics over the last 30 ka
Jody M. Webster, David A. Clague, Juan Carlos Braga, Heather Spalding, Willem Renema, Christopher Kelley, Bruce Applegate, John R. Smith, Charles K. Paull, James G. Moore, Donald Potts
2006, Marine Geology (225) 223-246
We present detailed bathymetry, remotely operated vehicle (ROV) and submersible observations, and sedimentary and radiocarbon age data from carbonate deposits recovered from two submerged terraces at − 150 m (T1) and − 230 m (T2) off Lanai, Hawaii. The tops of the terraces are veneered by relatively thin (<5 m) in situ...
Vulnerability of shallow groundwater and drinking-water wells to nitrate in the United States
Bernard T. Nolan, Kerie J. Hitt
2006, Environmental Science & Technology (40) 7834-7840
Two nonlinear models were developed at the national scale to (1) predict contamination of shallow ground water (typically < 5 m deep) by nitrate from nonpoint sources and (2) to predict ambient nitrate concentration in deeper supplies used for drinking. The new models have several advantages over previous national-scale approaches....
Mineral of the month: tungsten
Kim B. Shedd
2006, Geotimes (2006)
Tungsten has the highest melting point of all metals, one of the highest densities and, when combined with carbon, is almost as hard as diamond. These and other properties make it useful in a wide variety of important commercial, industrial and military applications....
Petroleum Geologist's award to novelist Crichton is inappropriate
J. Brigham-Grete, S. Anderson, J. Clague, J. Cole, P. Doran, A. Gillespie, E. Grimm, P. Guccione, K. Hijghen, S. Jackson, T. Jull, S. Leavitt, R. Mandel, J. Ortiz, D. Rodbell, C. Schweger, A. Smith, B. Styles
2006, Eos, Transactions, American Geophysical Union (87) 364
[No abstract available]...
Evaluating minerals of environmental concern using spectroscopy
G.A. Swayze, R. N. Clark, C.T. Higgins, R.F. Kokaly, K. Eric Livo, T.M. Hoefen, C. Ong, F.A. Kruse
2006, Conference Paper, International Geoscience and Remote Sensing Symposium (IGARSS)
Imaging spectroscopy has been successfully used to aid researchers in characterizing potential environmental impacts posed by acid-rock drainage, ore-processing dust on mangroves, and asbestos in serpentine mineral deposits and urban dust. Many of these applications synergistically combine field spectroscopy with remote sensing data, thus allowing more-precise data calibration, spectral analysis...
Effects of long-term water table drawdown on evapotranspiration and vegetation in an arid region phreatophyte community
D.J. Cooper, J.S. Sanderson, D.I. Stannard, D.P. Groeneveld
2006, Journal of Hydrology (325) 21-34
Evapotranspiration rates and the ground water component of evapotranspiration at a site in Colorado's San Luis Valley that is dominated by shrubby phreatophytes (greasewood and rabbitbrush) were compared before and after a water table drawdown. Evapotranspiration (ET) rates at the site were first measured in 1985-1987 (pre-drawdown) when the mean...
Evaluation of non-destructive methods for estimating biomass in marshes of the upper Texas, USA coast
M. Whitbeck, J.B. Grace
2006, Wetlands (26) 278-282
The estimation of aboveground biomass is important in the management of natural resources. Direct measurements by clipping, drying, and weighing of herbaceous vegetation are time-consuming and costly. Therefore, non-destructive methods for efficiently and accurately estimating biomass are of interest. We compared two non-destructive methods, visual obstruction and light penetration, for...
Occurrence of organic wastewater compounds in effluent-dominated streams in Northeastern Kansas
C.J. Lee, T. J. Rasmussen
2006, Science of the Total Environment (371) 258-269
Fifty-nine stream-water samples and 14 municipal wastewater treatment facility (WWTF) discharge samples in Johnson County, northeastern Kansas, were analyzed for 55 compounds collectively described as organic wastewater compounds (OWCs). Stream-water samples were collected upstream, in, and downstream from WWTF discharges in urban and rural areas during base-flow conditions. The effect...
Impacts of marsh management on coastal-marsh bird habitats
L.R. Mitchell, S. Gabrey, P.P. Marra, R.M. Erwin
Greenberg R.Maldonado J.E.Droege S.McDonald M.V., editor(s)
2006, Studies in Avian Biology 155-175
The effects of habitat-management practices in coastal marshes have been poorly evaluated. We summarize the extant literature concerning whether these manipulations achieve their goals and the effects of these manipulations on target (i.e., waterfowl and waterfowl food plants) and non-target organisms (particularly coastal-marsh endemics). Although we focus on the effects...
Shifting covariability of North American summer monsoon precipitation with antecedent winter precipitation
G.J. McCabe, M.P. Clark
2006, International Journal of Climatology (26) 991-999
Previous research has suggested that a general inverse relation exists between winter precipitation in the southwestern United states (US) and summer monsoon precipitation. In addition, it has been suggested that this inverse relation between winter precipitation and the magnitude of the southwestern US monsoon breaks down under certain climatic conditions...
Development of the performance confirmation program at YUCCA mountain, nevada
G.D. LeCain, D. Barr, D. Weaver, R. Snell, S.W. Goodin, F.D. Hansen
2006, Conference Paper, Proceedings of the 11th International High Level Radioactive Waste Management Conference, IHLRWM
The Yucca Mountain Performance Confirmation program consists of tests, monitoring activities, experiments, and analyses to evaluate the adequacy of assumptions, data, and analyses that form the basis of the conceptual and numerical models of flow and transport associated with a proposed radioactive waste repository at Yucca Mountain, Nevada. The Performance...
