High PCB residues in birds from the Sheboygan River, Wisconsin
Gary Heinz, Douglas M. Swineford, Dale E. Katsma
1984, Environmental Monitoring and Assessment (4) 155-161
Organochlorine residues were measured in the carcasses and, in some cases, brains and stomach contents of four species of birds collected along the Sheboygan River, Wisconsin during the years 1976 to 1980. Polychlorinated biphenyls (PCBs) were high in all samples and were the contaminants of greatest concern. Carcass residues ranged...
Toxicity of anticholinesterase insecticides to birds: Technical grade versus granular formulations
E. F. Hill, M.B. Camardese
1984, Ecotoxicology and Environmental Safety (8) 551-563
The acute toxicities of 13 granular anticholinesterase insecticides were compared with their technical grade active ingredients by administering single oral doses of chemical to adult Northern bobwhites (Colinus virginianus) and evaluating resultant LD50 values and dose-response curves. Similar tests with ringed turtledoves (Streptopelia risoria) were conducted with five of the...
Avian models for toxicity testing
E. F. Hill, D. J. Hoffman
1984, Journal of the American College of Toxicology (3) 357-376
The use of birds as test models in experimental and environmental toxicology as related to health effects is reviewed, and an overview of descriptive tests routinely used in wildlife toxicology is provided. Toxicologic research on birds may be applicable to human health both directly by their use as models for...
Estimating prey size and number in crayfish-eating snakes, genus Regina
J.S. Godley, R.W. McDiarmid, N.N. Rojas
1984, Herpetologica (40) 82-88
Snakes of the genus Regina feed almost exclusively on crayfish. The paired, symmetrical gastroliths of crayfish are not digested and are detectable from x-rays of the snake. Gastrolith length is directly proportional to carapace length and can be obtained from x-rays. Carapace length can be converted to kcal of...
Neurotoxic and teratogenic effects of an organophosphorus insecticide (phenyl phosphonothioic acid-O-ethyl-O-[4-nitrophenyl] ester) on mallard development
D. J. Hoffman, L. Sileo
1984, Toxicology and Applied Pharmacology (73) 284-294
Phenyl phosphonothioic acid-O-ethyl-O-[4-nitrophenyl] ester (EPN) is one of the 10 most frequently used organophosphorus insecticides and caused delayed neurotoxicity in adult chickens and mallards. Small amounts of organophosphorus insecticides placed on birds' eggs are embryotoxic and teratogenic. For this reason, the effects of topical egg application on...
Testing for variation in taxonomic extinction probabilities: A suggested methodology and some results
M.J. Conroy, J.D. Nichols
1984, Paleobiology (10) 328-337
Several important questions in evolutionary biology and paleobiology involve sources of variation in extinction rates. In all cases of which we are aware, extinction rates have been estimated from data in which the probability that an observation (e.g., a fossil taxon) will occur is related both to extinction rates and...
First records of Juan Fernandes (Pterodroma e. externa) and Stejneger's (Pterodroma longirostris) petrels from Hawaii
R. B. Clapp
1984, 'Elepaio (44) 97-98
No abstract available....
A general methodology for maximum likelihood inference from band-recovery data
M.J. Conroy, B. Kenneth Williams
1984, Biometrics (40) 739-748
A numerical procedure is described for obtaining maximum likelihood estimates and associated maximum likelihood inference from band- recovery data. The method is used to illustrate previously developed one-age-class band-recovery models, and is extended to new models, including the analysis with a covariate for survival rates and variable-time-period recovery models....
Disseminated visceral coccidiosis in sandhill cranes
J. W. Carpenter, M.N. Novilla, R. Fayer, G.C. Iverson
1984, Journal of the American Veterinary Medical Association (185) 1343-1346
Disseminated visceral coccidiosis (DVC) caused by Eimeria spp was first recognized as a disease entity in captive sandhill cranes (Grus canadensis) and whooping cranes (G americana) at the Patuxent Wildlife Research Center. Because cranes produced at the Center are reintroduced to the wild to augment wild populations, studies involving both...
Feeding flights of nesting wading birds at a Virginia colony
R.M. Erwin
1984, Colonial Waterbirds (7) 74-79
Feeding flights of Snowy Egrets (Egretta thula), Tricolored Herons (E. tricolor), Little Blue Herons (E. caerulea), and Cattle Egrets (Bubulcus ibis) were monitored at a small nesting colony near Chincoteague, Virginia during late May and June 1979. All four species varied their flight directions over a series of days....
Tissue lead distribution and hematologic effects in American kestrels (Falco sparverius) fed biologically incorporated lead
T. W. Custer, J. C. Franson, O. H. Pattee
1984, Journal of Wildlife Diseases (20) 39-43
American kestrels were fed a diet containing 0.5, 120, 212, and 448 ppm (dry wt) biologically incorporated lead (Pb) for 60 days. The diet consisted of homogenized 4-wk-old cockerels raised on feed mixed with and without lead. No kestrels died and weights did not differ among treatment groups. The control...
Geographic and temporal differences in band reporting rates for American black ducks
M.J. Conroy, W.W. Blandin
1984, Journal of Wildlife Management (48) 23-36
Recoveries of reward- and standard-banded American black ducks (Anas rubripes) were used to estimate band reporting rates and to investigate geographic and temporal variability in reporting rate for 1978-80. Reporting rates were higher close ( 20 km) to the parent banding site in 3 of 42 samples and were higher...
DDE in birds' eggs: Comparisons of two methods for estimating critical levels
L. J. Blus
1984, The Wilson Bulletin (96) 268-276
The sample egg technique and eggshell thickness-residue regression analysis were comparatively evaluated as tools in estimating critical levels of DDE in birds? eggs that seriously affect reproductive successa nd population starts....In comparing critical values of DDE that were derived from the two methods, the estimates were lower using the sample...
Simulation analyses of space use: Home range estimates, variability, and sample size
Marc Bekoff, L. David Mech
1984, Behavior Research Methods, Instruments, and Computers (16) 32-37
Simulations of space use by animals were run to determine the relationship among home range area estimates, variability, and sample size (number of locations). As sample size increased, home range size increased asymptotically, whereas variability decreased among mean home range area estimates generated by multiple simulations for the same sample...
Organochlorine pesticide residues in moths from the Baltimore, MD-Washington, D.C. area
W. N. Beyer, T. E. Kaiser
1984, Environmental Monitoring and Assessment (4) 129-137
Moths were collected with a light trap from 15 sites in the Baltimore, Maryland-Washington, D.C. area and analyzed for organochlorine pesticide residues. On the average, the species sampled contained 0.33 ppm heptachlor-chlordane compounds, 0.25 ppm DDE, and 0.11 ppm dieldrin. There were large differences in the concentrations detected in different...
Acute responses of American kestrels to methyl parathion and fenvalerate
Barnett A. Rattner, J. C. Franson
1984, Federation Proceedings (43)
Physiological and toxicological effects of p.o, methyl parathion (0.375-3.0 mg/kg) or fenvalerate (1000-4000 mg/kg) were examined over a 10 h period in American kestrels (Falco sparverius) maintained in thermoneutral (22?.C) and cold (-5?.C) environments. Methyl parathion was highly toxic (LD50=3.08 mg/kg, 95% confidence limits=2.29-4.l4 mg/kg, producing overt intoxication (abnormal posture,...
Program LINLOGN users instructions
J.E. Hines, K. H. Pollock, J.D. Nichols
1984, North Carolina State University, Institute of Statistics Mimeograph Series No. 1650
Seabirds of the north and middle Atlantic coast of the United States: their status and conservation
P. A. Buckley, F. G. Buckley
J.P. Croxall, P.G. Evans, R.W. Schreiber, editor(s)
1984, Book chapter, Status and conservation of the world's seabirds
Status and conservation of seabirds in the southeastern United States
R. B. Clapp, P. A. Buckley
J.P. Croxall, P.G. Evans, R.W. Schreiber, editor(s)
1984, Book chapter, Status and conservation of the world's seabirds
Management to conserve forest ecosystems
C.S. Robbins
William C. McComb, editor(s)
1984, Book chapter, Proceedings of the Workshop on Management of Nongame Species and Ecological Communities
Historically, management of forests for wildlife has emphasized creation of openings and provision for a maximum of edge habitats. Wildlife managers have believed, quite logically, that increased sunlight enhances productivity among plants and insects, resulting in greater use by game animals and other wildlife. Recent studies comparing breeding...
Linear regression--A useful tool in analyzing banding results
C.S. Robbins
Kathryn J. Schneider, editor(s)
1984, Book chapter, An Introduction to Statistics for Bird Banders
Ecological considerations for the use of dispersants in oil spill response
J. Lindstedt-Siva, P.H. Albers, K.W. Fucik, N.G. Maynard
Tom E. Allen, editor(s)
1984, Book chapter, Oil Spill Chemical Dispersants: Research, Experience, and Recommendations
A multidisciplinary task force with membership from government agencies, academia, and industry is developing ecologically based guidelines for dispersant use in marine and estuarine environments. The guidelines are organized by habitat type (e.g., coral reefs, rocky shores, bird habitats) and consider dispersant use to protect the habitats from impact, to...
Maui-Molokai forest birds recovery plan, May 1984
C. B. Kepler, T. Burr, C.B. Cooper, D. Dunatchik, J. Medeiros, J. M. Scott, M. Ueoko, W. Wong
1984, Book
Geographic Names Information System
Water Resources Division, U.S. Geological Survey
1984, Report
The Geographic Names Information System (GNIS) is an automated data system developed by the U.S. Geological Survey (USGS) to standardize and disseminate information on geographic names. GNIS provides primary information for all known places, features, and areas in the United States identified by a proper name. The information in the...
Fluoride, Nitrate, and Dissolved-Solids Concentrations in Ground Waters of Washington
W. E. Lum II, Gary L. Turney
1984, Water-Resources Investigations Report 82-508
This study provides basic data on ground-water quality throughout the State. It is intended for uses in planning and management by agencies and individuals who have responsibility for or interest in, public health and welfare. It also provides a basis for directing future studies of ground-water quality toward areas where...
