Place vs. time and vegetational persistence: A comparison of four tropical mires from the Illinois Basin during the height of the Pennsylvanian Ice Age
William A. DiMichele, T.L. Phillips, W. John Nelson
2002, International Journal of Coal Geology (50) 43-72
Coal balls were collected from four coal beds in the southeastern part of the Illinois Basin. Collections were made from the Springfield, Herrin, and Baker coals in western Kentucky, and from the Danville Coal in southwestern Indiana. These four coal beds are among the principal mineable coals of the Illinois...
Eros: Shape, topography, and slope processes
P.C. Thomas, J. Joseph, B. Carcich, J. Veverka, B.E. Clark, J.F. Bell III, A.W. Byrd, R. Chomko, M. Robinson, S. Murchie, L. Prockter, A. Cheng, N. Izenberg, M. Malin, C. Chapman, L.A. McFadden, Randolph L. Kirk, M. Gaffey, P. G. Lucey
2002, Icarus (155) 18-37
Stereogrammetric measurement of the shape of Eros using images obtained by NEAR's Multispectral Imager provides a survey of the major topographic features and slope processes on this asteroid. This curved asteroid has radii ranging from 3.1 to 17.7 km and a volume of 2535±20 km3. The center of figure is...
Lead burdens and behavioral impairments of the lined shore crab Pachygrapsus crassipes
Clifford A. Hui
2002, Ecotoxicology (11) 417-421
Sublethal burdens of lead impair behaviors critical to survival in a variety of animals. In a test arena, I measured refuge-seeking behaviors of adult, male, lined shore crabs from lead-free and lead-contaminated sites. The body sizes of the test groups did not differ although the mean total body lead burdens...
Use of acoustic classification of sidescan sonar data for mapping benthic habitat in the Northern Channel Islands, California
Guy R. Cochrane, Kevin D. Lafferty
2002, Continental Shelf Research (22) 683-690
Highly reflective seafloor features imaged by sidescan sonar in nearshore waters off the Northern Channel Islands (California, USA) have been observed in subsequent submersible dives to be areas of thin sand covering bedrock. Adjacent areas of rocky seafloor, suitable as habitat for endangered species of abalone and rockfish, and encrusting...
Absolute irradiance of the Moon for on-orbit calibration
T.C. Stone, H. H. Kieffer
Barnes W.L., editor(s)
2002, Conference Paper, Proceedings of SPIE - The International Society for Optical Engineering
The recognized need for on-orbit calibration of remote sensing imaging instruments drives the ROLO project effort to characterize the Moon for use as an absolute radiance source. For over 5 years the ground-based ROLO telescopes have acquired spatially-resolved lunar images in 23 VNIR (Moon diameter ???500 pixels) and 9 SWIR...
Lead distribution throughout soil, flora, and an invertebrate at a wetland skeet range
Clifford A. Hui
2002, Journal of Toxicology and Environmental Health, Part A (65) 1093-1107
Lead pellets from a skeet range impart Pb to the local soil, plants, and animals. Concentrations and distributions of Pb in the various media were studied at the now-abandoned skeet range bordering a cordgrass marsh at the Naval Weapons Station Seal Beach in Southern California. The concentrations of Pb in...
Clam density and scaup feeding behavior in San Pablo Bay, California
Victoria K. Poulton, James R. Lovvorn, John Y. Takekawa
2002, Condor (104) 518-527
San Pablo Bay, in northern San Francisco Bay, California, is an important wintering area for Greater (Aythya marila) and Lesser Scaup (A. affinis). We investigated variation in foraging behavior of scaup among five sites in San Pablo Bay, and whether such variation was related to densities of their main potential...
Immobilization of swift foxes with ketamine hydrochloride-xylazine hydrochloride
R.L. Telesco, Marsha A. Sovada
2002, Journal of Wildlife Diseases (38) 764-768
There is an increasing need to develop field immobilization techniques that allow researchers to handle safely swift foxes (Vulpes velox) with minimal risk of stress or injury. We immobilized captive swift foxes to determine the safety and effectiveness of ketamine hydrochloride and xylazine hydrochloride at different dosages. We attempted to...
West Nile virus in livestock and wildlife
R. G. McLean, S. R. Ubico, D. Bourne, N. Komar
2002, Book chapter, Japanese encephalitis and West Nile viruses
West Nile (WN) virus, the causative agent of West Nile fever, a dengue-like infection in humans, is one of the most widely distributed arthropod-borne viruses extending, until recently, from Africa, the Middle East, Europe, and western Asia. WN virus is a natural avian virus transmitted between birds primarily by ornithophilic...
Life history and propagation of the endangered fanshell pearlymussel, Cyprogenia stegaria Rafinesque (Bivalvia: Unionidae)
J. W. Jones, R. J. Neves
2002, Journal of the North American Benthological Society (21) 76-88
Aspects of the reproduction, age, growth, fish hosts, and culture of juveniles were determined for the endangered fanshell pearlymussel, Cyprogenia stegaria Rafinesque, 1820, in the Clinch River, Tennessee. Glochidia of C. stegaria are contained in red, worm-like conglutinates that resemble oligochaetes. Conglutinates are 20 to 80 mm long and are...
Resource-assessment perspectives for unconventional gas systems
J. W. Schmoker
2002, American Association of Petroleum Geologists Bulletin (86) 1993-1999
Concepts are described for assessing those unconventional gas systems that can also be defined as continous accumulations. Continuous gas accumulations exist more or less independently of the water column and do not owe their existence directly to the bouyancy of gas in water. They cannot be represented in terms of...
Avian vacuolar myelinopathy: a newly recognized fatal neurologic disease of eagles, waterfowl, and other birds
John R. Fischer, L.A. Lewis, T. Augspurger, Tonie E. Rocke
2002, Transactions of the North American Wildlife and Natural Resources Conference (67) 51-61
Wildlife biologists and health specialists have been frustrated by a long list of negative findings in their AVM investigations, however studies continue to provide pieces of information to aid the determination of the cause and its source. Available data indicated that AVM may have been present since at least 1990,...
Small-mammal data on early and middle Holocene climates and biotic communities in the Bonneville Basin, USA
D.N. Schmitt, D.B. Madsen, K.D. Lupo
2002, Quaternary Research (58) 255-260
Archaeological investigations in Camels Back Cave, western Utah, recovered a series of small-mammal bone assemblages from stratified deposits dating between ca. 12,000 and 500 14C yr B.P. The cave's early Holocene fauna includes a number of species adapted to montane or mesic habitats containing grasses and/or sagebrush (e.g., Lepus townsendii,...
Algal layer ratios as indicators of air pollutant effects in Permelia sulcata
J. P. Bennett
2002, Bryologist (105) 104-110
Parmelia sulcata Taylor is generally believed to be fairly pollution tolerant, and consequently it is sometimes collected in urban and/or polluted localities. The condition of these specimens, however, is not always luxuriant and healthy. This study tested the hypothesis that total thallus and algal layer thickness, and the algal layer...
Advances in directional borehole radar data analysis and visualization
D.V.G. Smith, P.J. Brown II
2002, Conference Paper, Proceedings of SPIE - The International Society for Optical Engineering
The U.S. Geological Survey is developing a directional borehole radar (DBOR) tool for mapping fractures, lithologic changes, and underground utility and void detection. An important part of the development of the DBOR tool is data analysis and visualization, with the aim of making the software graphical user interface (GUI) intuitive...
Regional patterns of pesticide concentrations in surface waters of New York in 1997
Patrick J. Phillips, David A. Eckhardt, Douglas A. Freehafer, Gary R. Wall, H. H. Ingleston
2002, Journal of the American Water Resources Association (38) 731-745
The predominant mixtures of pesticides found in New York surface waters consist of five principal components. First, herbicides commonly used on corn (atrazine, metolachlor, alachlor, cyanazine) and a herbicide degradate (deethylatrazine) were positively correlated to a corn-herbicide component, and watersheds with the highest corn-herbicide component scores were those in which...
Putting aquifers into atmospheric simulation models: An example from the Mill Creek Watershed, Northeastern Kansas
J.P. York, M. Person, W.J. Gutowski, T. C. Winter
2002, Advances in Water Resources (25) 221-238
Aquifer-atmosphere interactions can be important in regions where the water table is shallow (<2 m). A shallow water table provides moisture for the soil and vegetation and thus acts as a source term for evapotranspiration to the atmosphere. A coupled aquifer-land surface-atmosphere model has been developed to study aquifer-atmosphere interactions...
A review of the multiwell experiment in tight gas sandstones of the Mesaverde Group, Piceance Basin, Colorado
P. H. Nelson
2002, Mountain Geologist (39) 53-71
The Cretaceous Iles and Williams Fork Formations of the Mesaverde Group contain important reservoir and source rocks for basin-centered gas accumulations in the Piceance Basin of northwestern Colorado. The sandstones in these formations have very low permeability, so low that successful production of gas requires the presence of fractures. To...
Temporal variations of natural and anthropogenic radionuclides in sea otter skull tissue in the North Pacific Ocean
M. Baskaran, G.-H. Hong, S. Dayton, James L. Bodkin, J.J. Kelley
2002, Journal of Environmental Radioactivity (64) 1-18
Marine mammals being among the top predators in the food web tend to accumulate organic and inorganic contaminants from the environment. The body burden of contaminants in these species could reflect their foods and thus contaminant levels could serve as proxies on the changes of ecosystem. A pilot study was...
Test of a habitat suitability index for black bears in the southern Appalachians
M.S. Mitchell, J.W. Zimmerman, R. A. Powell
2002, Wildlife Society Bulletin (30) 794-808
We present a habitat suitability index (HSI) model for black bears (Ursus americanus) living in the southern Appalachians that was developed a priori from the literature, then tested using location and home range data collected in the Pisgah Bear Sanctuary, North Carolina, over a 12-year period. The HSI was developed...
Discussion comments on 'Evaluation of some random effects methodology applicable to bird ringing data' by Burnham and White
Douglas H. Johnson
2002, Journal of Applied Statistics (29) 265-266
No abstract available....
Using an electronic compass to determine telemetry azimuths
R. R. Cox Jr., J.D. Scalf, B.E. Jamison, R.S. Lutz
2002, Wildlife Society Bulletin (30) 1039-1043
Researchers typically collect azimuths from known locations to estimate locations of radiomarked animals. Mobile, vehicle-mounted telemetry receiving systems frequently are used to gather azimuth data. Use of mobile systems typically involves estimating the vehicle's orientation to grid north (vehicle azimuth), recording an azimuth to the transmitter relative to the vehicle...
Undrained poroelastic response of sandstones to deviatoric stress change
D.A. Lockner, S. A. Stanchits
2002, Journal of Geophysical Research B: Solid Earth (107) ETG 13-1-ETG 13-14
Deformation of porous crustal rock through diagenesis, tectonic loading, or other processes can change pore volume and affect fluid pressure. The largest stress-induced pore pressure changes occur when fluid is trapped in pores in an “undrained” condition. We have measured the undrained poroelastic response of two sandstones to changes in...
Habitat and landscape associations of breeding birds in native and restored grasslands
R. J. Fletcher Jr., Rolf R. Koford
2002, Journal of Wildlife Management (66) 1011-1022
In the midwestern United States, less than 1% of the original tallgrass prairie ecosystem remains. State and federal agencies have responded to this habitat loss with programs and land acquisition that have increased the amount of grassland on the landscape by restoring grassland from other land-use practices. We assessed the...
Improved method for quantifying the avicide 3-chloro-p-toluidine hydrochloride in bird tissues using a deuterated surrogate/GC/MS method
Randal S. Stahl, Thomas W. Custer, P. A. Pochop, J. J. Johnston
2002, Journal of Agricultural and Food Chemistry (50) 732-738
A method using a deuterated surrogate of the avicide 3-chloro-p-toluidine hydrochloride (CPTH) was developed to quantify the CPTH residues in the gastrointestinal (GI) tract and breast muscle tissues in birds collected in CPTH-baited sunflower and rice fields. This method increased the range of a previous surrogate/gas chromatography/mass spectroscopy method...
