Statiscal analysis of an earthquake-induced landslide distribution - The 1989 Loma Prieta, California event
D. K. Keefer
2000, Engineering Geology (58) 231-249
The 1989 Loma Prieta, California earthquake (moment magnitude, M=6.9) generated landslides throughout an area of about 15,000 km2 in central California. Most of these landslides occurred in an area of about 2000 km2 in the mountainous terrain around the epicenter, where they were mapped during field investigations immediately following the...
An evaluation of the toxicity of contaminated sediments from Waukegan Harbor, Illinois, following remediation
N.E. Kemble, D.G. Hardesty, C.G. Ingersoll, B. Thomas Johnson, F.J. Dwyer, D.D. MacDonald
2000, Archives of Environmental Contamination and Toxicology (39) 452-461
Waukegan Harbor in Illinois was designated as a Great Lakes Area of Concern due to high concentrations of sediment-associated polychlorinated biphenyls (PCBs). The objective of this study was to evaluate the toxicity of 20 sediment samples collected after remediation (primarily dredging) of Waukegan Harbor for PCBs. A 42-day whole sediment...
Characterizing hydrology and the importance of ground-water discharge in natural and constructed wetlands
Randall J. Hunt, John F. Walker, David P. Krabbenhoft
1999, Wetlands (19) 458-472
Although considered the most important component for the establishment and persistence of wetlands, hydrology has been hard to characterize and linkages between hydrology and other environmental conditions are often poorly understood. In this work, methods for characterizing a wetland’s hydrology from hydrographs were developed, and the importance of ground water...
Coal-fired power generaion, new air quality regulations, and future U.S. coal production
E. D. Attanasi, D. H. Root
1999, Environmental Geosciences (6) 139-145
Tighter new regulation of stack gas emissions and competition in power generation are driving electrical utilities to demand cleaner, lower sulfur coal. Historical data on sulfur content of produced coals shows little variability in coal quality for individual mines and individual coal-producing counties over relatively long periods of time. If...
Fifty-eighth Christmas Bird Count. 166. Ocean City, Md
C.S. Robbins
1999, Wetlands (19) 117-118
Gauging the impact of manipulative activities, such as rehabilitation or management, on wetlands requires having a notion of the unmanipulated condition as a reference. An understanding of the reference condition requires knowledge of dominant factors influencing ecosystem processes and biological communities. In this paper, we focus on...
Availability of nest cavity trees for wood ducks (Aix sponsa) at Sunkhaze Meadows National Wildlife Refuge, Maine
D.A. Clugston
1999, Northeastern Naturalist (6) 133-138
The availability of natural cavities for cavitynesting waterfowl, especially wood ducks (Aix sponsa), was unknown ferating forest of Sunkhaze Meadows National Wildlife Refuge, ME. An assessment of cavity availability was needed to determine if the existing nesting box program should be increased. During November to March, 199697 and...
COMDYN: Software to study the dynamics of animal communities using a capture-recapture approach
J.E. Hines, T. Boulinier, J.D. Nichols, J.R. Sauer, K. H. Pollock
1999, Bird Study (46) S209-S217
COMDYN is a set of programs developed for estimation of parameters associated with community dynamics using count data from two locations or time periods. It is Internet-based, allowing remote users either to input their own data, or to use data from the North American Breeding Bird Survey for analysis....
Contribution of research to management and recovery of the roseate tern: review of a twelve-year project
I.C.T. Nisbet, J. A. Spendelow
1999, Waterbirds (22) 239-252
The Northwest Atlantic population of the Roseate Tern (Sterna dougallii) is largely confined to a small breeding area along the northeast coast of the USA between 40? and 42?N. This population was listed as endangered in the USA in 1987 because it was dangerously concentrated into a few breeding...
Low abundance of microsatellite repeats in the genome of the brown-headed cowbird (Molothrus ater)
Jonathan L. Longmire, D.C. Hahn, J.L. Roach
1999, Journal of Heredity (90) 574-578
A cosmid library made from brown-headed cowbird (Molothrus ater) DNA was examined for representation of 17 distinct microsatellite motifs including all possible mono-, di-, and trinucleotide microsatellites, and the tetranucleotide repeat (GATA)n. The overall density of microsatellites within cowbird DNA was found to be one repeat per 89 kb and...
Evaluation of mist-net sampling as an index to productivity in Kirtland's Warblers
J. Bart, C. Kepler, P. Sykes, Carol I. Bocetti
1999, The Auk (116) 1147-1151
Many applied and theoretical investigations require information on how productivity varies in time and space (Temple and Wiens 1989. DeSante 1995). Examples include studies of habitat quality, population trends, life-history tactics, and metapopulation dynamics. From a demographic perspective, productivity is the number of young counted at a given time of...
Program RDSURVIV: An estimation tool for capture-recapture data collected under Pollock's robust design
W. L. Kendall, J.E. Hines
1999, Bird Study (46) S32-S38
Several papers have demonstrated the advantages of collecting capture- recapture data using subsamples (i.e. Pollock's robust design). Compared with a standard design (i.e. one sample per period), this approach (1) permits the estimation of more demographic parameters and (2) in many cases produces more efficient estimators. Program SURVIV is a...
Metal and sediment ingestion by dabbling ducks
W. N. Beyer, J. Spann, D. Day
1999, Science of the Total Environment (231) 235-239
The chemical analysis of intestinal digesta from hunter-killed carcasses or of wildlife scat is a promising means of estimating the exposure of wildlife to those environmental contaminants that, like lead, are poorly absorbed in the digestive tract. When evaluating contaminants at a site, biologists may find the results of this non-destructive approach more...
Density and habitat of breeding Swallow-tailed Kites in the lower Suwannee ecosystem, Florida
P.W. Sykes Jr., C. B. Kepler, K.L. Litzenberger, H.R. Sansing, E.T.R. Lewis, Jeff S. Hatfield
1999, Journal of Field Ornithology (70) 321-336
Historically the Swallow-tailed Kite (Elanoides forficatus) bred in the United States in at least 16 eastern states. Currently it is restricted to seven southeastern states, with most of its breeding range in Florida. Breeding Bird Surveys indicate a declining trend for this Neotropical migrant in most of Florida....
Aspects of hatching success and chick survival in Gull-billed Terns in coastal Virginia
T.B. Eyler, R.M. Erwin, Daniel B. Stotts, Jeff S. Hatfield
1999, Waterbirds (22) 54-59
Because of a long-term population decline in Gull-billed Terns (Sterna nilotica) nesting along the coast of Virginia, we began a three year study in 1994 to monitor hatching success and survival of Gull-billed Tern chicks at several Virginia colony sites. Colonies were located on either small, storm-deposited shellpiles along...
Aspects of chick growth in Gull-billed Terns in coastal Virginia
R.M. Erwin, T.B. Eyler, Daniel B. Stotts, Jeff S. Hatfield
1999, Waterbirds (22) 47-53
Because of concerns about apparent population declines and low productivity of Gull-billed Terns (Sterna nilotica) along the coast of Virginia, we investigated whether food limitations may result in retarded growth rates of young. Several colonies of Gull-billed Terns were monitored from May to July each year from 1994 to...
Modeling pattern in collections of parameters
W.A. Link
1999, Journal of Wildlife Management (63) 1017-1027
Wildlife management is increasingly guided by analyses of large and complex datasets. The description of such datasets often requires a large number of parameters, among which certain patterns might be discernible. For example, one may consider a long-term study producing estimates of annual survival rates; of interest is...
Identification, inheritance, and linkage of B-G-like and MHC class I genes in cranes
S.I. Jarvi, R.M. Goto, G.F. Gee, W.E. Briles, M.M. Miller
1999, Journal of Heredity (90) 152-159
We identified B-G-like genes in the whooping and Florida sandhill cranes and linked them to the major histocompatibility complex (MHC). We evaluated the inheritance of B-G-like genes in families of whooping and Florida sandhill cranes using restriction fragment patterns (RFPs). Two B-G-like genes, designated wcbg1 and wcbg2, were located within 8 kb of one another. The...
Abundance and reproduction of songbirds in burned and unburned pine forests of the Georgia Piedmont
Donald H. White, B.R. Chapman, J.H. Brunjes IV, R.V. Raftovich Jr., J.T. Seginak
1999, Journal of Field Ornithology (70) 414-424
We studied the abundance and productivity of songbirds in prescribed burned and unburned mature (>60 yr) pine forests at Piedmont National Wildlife Refuge, Georgia, during 1993-1995. We estimated species abundance, richness, and evenness using data from 312 point counts in 18 burned sites and six unburned sites. We...
Fifty-eighth Christmas Bird Count. 166. Ocean City, Md
J.R. Keough, T.A. Thompson, G.R. Guntenspergen, D.A. Wilcox
1999, Wetlands (19) 821-834
Gauging the impact of manipulative activities, such as rehabilitation or management, on wetlands requires having a notion of the unmanipulated condition as a reference. An understanding of the reference condition requires knowledge of dominant factors influencing ecosystem processes and biological communities. In this paper, we focus on...
Toxicity of lead-contaminated sediment to mallards
G. H. Heinz, D. J. Hoffman, L. Sileo, D. J. Audet, L. J. LeCaptain
1999, Archives of Environmental Contamination and Toxicology (36) 323-333
Because consumption of lead-contaminated sediment has been suspected as the cause of waterfowl mortality in the Coeur d?Alene River basin in Idaho, we studied the bioavailability and toxicity of this sediment to mallards (Anas platyrhynchos). In experiment 1, one of 10 adult male mallards died when fed a pelleted commercial...
Foraminiferal faunal estimates of paleotemperature: Circumventing the no-analog problem yields cool ice age tropics
A.C. Mix, A.E. Morey, N. G. Pisias, S. W. Hostetler
1999, Paleoceanography and Paleoclimatology (14) 350-359
The sensitivity of the tropics to climate change, particularly the amplitude of glacial-to-interglacial changes in sea surface temperature (SST), is one of the great controversies in paleoclimatology. Here we reassess faunal estimates of ice age SSTs, focusing on the problem of no-analog planktonic foraminiferal assemblages in the equatorial oceans that...
Environmental setting and natural factors and human influences affecting water quality in the White River Basin, Indiana
Douglas J. Schnoebelen, Joseph M. Fenelon, Nancy T. Baker, Jeffrey D. Martin, E. Randall Bayless, David V. Jacques, Charles G. Crawford
1999, Water-Resources Investigations Report 97-4260
The White River Basin drains 11,349 square miles of central and southern Indiana and is one of 59 Study Units selected for water-quality assessment as part of the U.S. Geological Survey's National WaterQuality Assessment Program. Defining the environmental setting of the basin and identifying the natural factors and human influences...
Hydrogeology, water use, and simulation of flow in the High Plains aquifer in northwestern Oklahoma, southeastern Colorado, southwestern Kansas, northeastern New Mexico, and northwestern Texas
Richard L. Luckey, Mark F. Becker
1999, Water-Resources Investigations Report 99-4104
The U.S. Geological Survey, in cooperation with the Oklahoma Water Resources Board, began a three-year study of the High Plains aquifer in northwestern Oklahoma in 1996. The primary purpose of this study was to develop a ground-water flow model to provide the Water Board with the information it needs to...
Ups and downs in planetary science
Carolyn S. Shoemaker
1999, Annual Review of Earth and Planetary Sciences (27) 1-17
The field of planetary science as it developed during the lifetimes of Gene and Carolyn Shoemaker has sustained a period of exciting growth. Surveying the skies for planet-crossing asteroids and comets and studying the results of their impact upon the planets, especially the Earth, was for Gene and Carolyn an...
Interaction of soil moisture and seedling shelters on water relations of baldcypress seedlings
Ty Swirin, Hans Williams, Bob Keeland
1999, Conference Paper, Proceedings of the tenth biennial southern silvicultural research conference
Stomata1 conductance, transpiration, and leaf water potential were measured during the 1996 growing season on baldcypress (Taxodium disfichum (L.) Rich.) seedlings. Seedlings were hand-planted from 1-O bareroot stock in mesic and permanently Rooded soil conditions. One-half of all seedlings were fitted with 122-cm tall polyethylene tree shelters, Seedlings were planted 1...
