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...
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...
Concentrations of chromium, manganese, and lead in air and in avian eggs
Clifford A. Hui
2002, Environmental Pollution (120) 201-206
The expansion of urbanization introduces air pollution to wildlife areas. Some metal contaminants occurring in concentrations too small to have any measurable impact on adult birds may seriously affect embryos that are more sensitive to contaminants than the adult. Chromium, manganese, and lead are toxic and can be passed from...
Waterbird use of bayland wetlands in the San Francisco Bay estuary: Movements of long-billed dowitchers during the winter
John Y. Takekawa, Nils Warnock, G.M. Martinelli, A. Keith Miles, Danika C. Tsao
2002, Waterbirds (25) 93-105
The San Francisco Bay estuary is a migration and wintering area for more than 1.5 million waterbirds on the west coast of North America. Because the estuary is located in a metropolitan area, development and diking of baylands (the region between the edge of the bay and the historical high...
A near-surface, daytime occurrence of two mesopelagic fish species (Stenobrachius leucopsarus and Leuroglossus schmidti) in a glacial fjord
Alisa A. Abookire, John F. Piatt, Suzann G. Speckman
2002, Fishery Bulletin (100) 376-380
The northern lampfish (Stenobrachius leucopsarus, family Myctophidae) and northern smoothtongue (Leuroglossus schmidti, family Bathylagidae) are mesopelagic fishes, defined by their vertical distribution in the mesopelagic zone (200–1000 m) during daylight hours. Northern lampfish range from the Bering Sea to southern California (Shimada, 1948), where their abundance is highest along the...
The surface rupture and slip distribution of the 17 August 1999 Izmit earthquake (M 7.4), North Anatolian fault
A. Barka, H.S. Akyuz, E. Altunel, G. Sunal, Z. Cakir, A. Dikbas, B. Yerli, R. Armijo, B. Meyer, J. B. De Chabalier, Thomas Rockwell, J.R. Dolan, R. Hartleb, Tim Dawson, S. Christofferson, A. Tucker, T. Fumal, Rob Langridge, H. Stenner, William Lettis, J. Bachhuber, W. Page
2002, Bulletin of the Seismological Society of America (92) 43-60
The 17 August 1999 İzmit earthquake occurred on the northern strand of the North Anatolian fault zone. The earthquake is associated with a 145-km-long surface rupture that extends from southwest of Düzce in the east to west of Hersek delta in the west. Detailed mapping of the surface rupture shows...
Quantifying flow-dependent changes in subyearling fall chinook salmon rearing habitat using two-dimensional spatially explicit modeling
K.F. Tiffan, R.D. Garland, D.W. Rondorf
2002, North American Journal of Fisheries Management (22) 713-726
We used an analysis based on a geographic information system (GIS) to determine the amount of rearing habitat and stranding area for subyearling fall chinook salmon Oncorhynchus tshawytscha in the Hanford Reach of the Columbia River at steady-state flows ranging from 1,416 to 11,328 m3/s. High-resolution river channel bathymetry was...
Preliminary cellular-automata forecast of permit activity from 1998 to 2010, Idaho and Western Montana
G. L. Raines, M. L. Zientek, J. D. Causey, D. E. Boleneus
2002, Natural Resources Research (11) 167-180
For public land management in Idaho and western Montana, the U.S. Forest Service (USFS) has requested that the U.S. Geological Survey (USGS) predict where mineral-related activity will occur in the next decade. Cellular automata provide an approach to simulation of this human activity. Cellular automata (CA) are defined by an...
An evaluation of biomarkers of reproductive function and potential contaminant effects in Florida largemouth bass (Micropterus salmoides floridanus) sampled from the St. Johns River
Maria S. Sepulveda, William E. Johnson, J. C. Higman, N. D. Denslow, T. R. Schoeb, Timothy S. Gross
2002, Science of the Total Environment (289) 133-144
The objective of this study was to describe and compare several reproductive parameters for Florida largemouth bass (Micropterus salmoides floridanus) inhabiting the St. Johns River and exposed to different types and/or degrees of contamination. Welaka was selected as the reference site in this study because of its low urban and agricultural development,...
Relationships between streambed substrate characteristics and freshwater mussels (Bivalvia: Unionidae) in coastal plain streams
Jayne Brim-Box, Robert M. Dorazio, W. D. Liddell
2002, Journal of the North American Benthological Society (21) 253-260
Freshwater mussels and stream substrate were sampled at 30 locations in the Apalachicola, Chattahoochee, and Flint (ACF) river basins. Although >2100 mussels that included 25 species were observed in our sample of 2661 quadrats, only 5 species were sufficiently abundant to provide reliable estimates of the relationship between mussel presence...
Fitness consequences of nest desertion in an endangered host, the least Bell's vireo
Barbara E. Kus
2002, Condor (104) 795-802
Recent analyses of the impact of cowbird parasitism on host productivity suggest that while parasitism reduces productivity on a per-nest basis, the ability of pairs to desert parasitized nests and renest allows them to achieve productivity comparable to that of unparasitized pairs. This has implications for the management of several...
Fecampia erythrocephala rediscovered: prevalence and distribution of a parasitoid of the European shore crab, Carcinus maenas
Armand M. Kuris, Mark E. Torchin, Kevin D. Lafferty
2002, Journal of the Marine Biological Association of the United Kingdom (82) 955-960
An ecological assessment of Fecampia erythrocephala, reporting its habitat distribution, abundance, host specificity, size-specific prevalence, frequency distribution among hosts, effect on host growth, and its site specificity within these hosts is presented. At the Isle of Man and near Plymouth, Fecampia erythrocephala cocoons were generally abundant on the...
Increasing diversity in our profession
Ronald D. Davis Sr., Samuel Diswood, Annette Dominguez, Ronald W. Engel-Wilson, Keith Jefferson, A. Keith Miles, Elizabeth F. Moore, Russell Reidinger, Sherry Ruther, Raul Valdez, Kenneth Wilson, Marilet A. Zablan
2002, Wildlife Society Bulletin (30) 628-633
The Wildlife Society's (TWS) Ethnic and Gender Diversity Committee (previously the Minority Affairs Committee) was established in 1998 and given several charges by TWS Council. This paper responds to our original charge to consider possi- ble actions and programs that TWS might undertake to increase minority participation in the...
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...
Good medicine for conservation biology: The intersection of epidemiology and conservation theory
Kevin D. Lafferty, Leah R. Gerber
2002, Conservation Biology (16) 593-604
A survey of organochlorine residues in woodcock wings was undertaken to determine whether these wings are suitable for showing regional differences in residues and to obtain a baseline in 1970-71 for later comparisons. Woodcock wings were obtained from the annual hunter's wing survey. Samples came from eight States (Louisiana, Maine,...
Characterization of arsenic species in microbial mats from an inactive gold mine
A. L. Foster, R. P. Ashley
2002, Geochemistry: Exploration, Environment, Analysis (2) 253-261
Filamentous cyanobacterial mats and Fe oxyhydroxide-rich bacterial mats collected near an inactive gold mine in California are enriched in arsenic (As) approximately 1000-fold relative to the waters in contact with them. The predominant organism in the cyanobacterial mat could not be identified using morphological characteristics, but the unique morphology of...
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...
Gravitational failure of sea cliffs in weakly lithified sediment
M. A. Hampton
2002, Environmental & Engineering Geoscience (8) 175-191
Gravitational failure of sea cliffs eroded into weakly lithified sediment at several sites in California involves episodic stress-release fracturing and cantilevered block falls. The principal variables that influence the gravitational stability are tensional stresses generated during the release of horizontal confining stress and weakening of the sediment with increased saturation...
Controls on facies and sequence stratigraphy of an upper Miocene carbonate ramp and platform, Melilla basin, NE Morocco
Kevin J. Cunningham, Luke S. Collins
2002, Sedimentary Geology (146) 285-304
Upwelling of cool seawater, paleoceanographic circulation, paleoclimate, local tectonics and relative sea-level change controlled the lithofacies and sequence stratigraphy of a carbonate ramp and overlying platform that are part of a temporally well constrained carbonate complex in the Melilla basin, northeastern Morocco. At Melilla, from oldest to youngest, a third-order...
Initial results from a test of the NASA EAARL lidar in the Tampa Bay region
John Brock, Wayne C. Wright, Amar Nayegandhi, Tonya Clayton, Mark Hansen, John Longenecker, Dean B. Gesch, Michael Crane, S. Dutton
2002, Conference Paper
An initial test of the performance of the NASA Experimental Advanced Airborne Research Lidar (EAARL) over coastal environments around the margins of an urbanized Gulf of Mexico estuary was performed over Tampa Bay in January 2002. The EAARL is...
Abundance and behavior of larval long-toed salamanders Ambystoma macrodactylumin naturally fishless lakes and lakes with non-reproducing populations of introduced trout in the northern Cascade Mountains, Washington, USA
T.J. Tyler, W.J. Liss, G.L. Larson, L.M. Ganio
2002, Report, Ecological impact of introduced trout on native aquatic communities in mountain lakes: Phase III Final Report
Monitoring of Lost River and shortnose suckers in the Lower Williamson River, Upper Klamath Basin, Oregon
T.J. Tyler, E.C. Janney, B.S. Hayes, R.S. Shively, G.N. Blackwood
2002, Report
Abstract not available ...
Compensatory feeding following a predator removal program: detection and mechanisms
J.H. Petersen
2002, Report
Abstract not available...
A national look at water quality
Robert J. Gilliom, David K. Mueller, John S. Zogorski, Sarah J. Ryker
2002, Water Resources Impact (4) 12-14
Most water-quality problems we face today result from diffuse "nonpoint" sources of pollution from agricultural land, urban development, forest harvesting and the atmosphere (U.S. Army Corps of Engineers et al., 1999). It is difficult to quantify nonpoint sources because the contaminants they deliver vary in composition and concentrations...
Migration behavior of radio-tagged juvenile Chinook salmon and steelhead relative to the performance of a removable spillway weir at Lower Granite Dam, Washington 2002
J.M. Plumb, A.C. Braatz, J.N. Lucchesi, S.D. Fielding, J.M. Sprando, G.T. George, N.S. Adams, D.W. Rondorf
2002, Report
Abstract not available...
