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Page 5925, results 148101 - 148125

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Methylmercury: Second generation reproductive and behavioral effects of mallard ducks
G. H. Heinz
1976, Journal of Wildlife Management (40) 710-715
Mallard ducks (Anas platyrhynchos) whose parents were fed a diet containing 0.5 ppm mercury (equal to about 0.1 ppm mercury in a natural diet) also were fed a diet containing 0.5 ppm mercury beginning at 9 days of age and continuing through their reproductive season. Mercury in the eggs of...
The effects of orchard pesticide applications on breeding robins
E.V. Johnson, G.L. Mack, D.Q. Thompson
1976, The Wilson Bulletin (88) 16-35
From 1966 through 1968, robins reproduced successfully in commercial apple orchards which were periodically sprayed with DDT, dieldrin, and other pesticides. Observations by a Z-man team using walkie-talkies revealed that breeding robins obtained essentially all food for themselves and nestlings from unsprayed areas adjacent to the orchards. Invertebrate trapping in...
Organochlorine residues and reproduction in the big brown bat
D. R. Clark Jr., T. G. Lamont
1976, Journal of Wildlife Management (40) 249-254
Twenty-six pregnant big brown bats (Eptesicus fuscus) were collected at Montpelier Barn, Laurel, Maryland, and kept in individual cages until parturition. Seven young in 5 litters were born dead; 21 litters contained only living young. Polychlorinated bipbenyl (PCB, Aroclor 1260) crossed the placenta two to three times more readily than...
Organochlorine residues in three bat species from four localities in Maryland and West Virginia, 1973
D. R. Clark Jr., R. M. Prouty
1976, Pesticides Monitoring Journal (10) 44-53
In 1973, 119 bats of three species were collected from four localities in Maryland and West Virginia. The collection included 43 big brown bats (Eptesicus fuscus), 43 little brown brown bats (Myotis lucifugus), and 33 eastern pipistrelles (Pipistrellus subflavus). The bats were collected from Round Top Mountain, Washington Co., Md.;...
Organochlorine residues in females and nursing young of the big brown bat (Eptesicus fuscus)
D. R. Clark Jr., T. G. Lamont
1976, Bulletin of Environmental Contamination and Toxicology (15) 1-8
Carcasses and brains of 18 big brown bats from Gaithersburg, Maryland, were analyzed for residues of organochlorine insecticides and PCB's. Eleven bats were adult females, and six of these had seven nursing young associated with them....Young bats resembled their parents in microgram amounts of PCB and DDE present in carcasses....
Dynamics of storage of organochlorine pollutants in herring gulls
D. W. Anderson, J.J. Hickey
1976, Environmental Pollution (10) 183-200
Several organochlorine pollutants were studied over the period of one annual cycle in caged juvenile and wild-collected adult herring gulls (Lagus argentatus) from Lake Michigan. Fish, mostly alewives (Alosa pseudoharengus), comprised the major year-round food items in the wild; alewives were also fed to the caged juveniles. Fish residues averaged...
Fatal vaccine-induced canine distemper virus infection in black-footed ferrets
J. W. Carpenter, M.J.G. Appel, R.C. Erickson, M.N. Novilla
1976, Journal of the American Veterinary Medical Association (169) 961-964
Four black-footed ferrets that were live-trapped in South Dakota and transported to the Patuxent Wildlife Research Center died within 21 days after vaccination with modified live canine distemper virus. Immunofluorescence, European ferret inoculation, virus isolation attempts, and serum-neutralization tests indicated insufficient attenuation of the vaccine for this species....
Mathematical models for non-parametric inferences from line transect data
K.P. Burnham, David R. Anderson
1976, Biometrics (32) 325-336
A general mathematical theory of line transects is developed which supplies a framework for nonparametric density estimation based on either right angle or sighting distances. The probability of observing a point given its right angle distance (y) from the line is generalized to an arbitrary function g(y). Given only...
Extation
R.C. Banks
1976, Science (191) 1217 + 129
Sublethal effects of chronic lead ingestion in mallard ducks
M. T. Finley, M. P. Dieter, L. N. Locke
1976, Journal of Toxicology and Environmental Health (1) 929-937
Mallard drakes (Anas platyrhynchos) fed 1, 5, or 25 ppm lead nitrate were bled and sacrificed at 3‐wk intervals. No mortality occurred, and the pathologic lesions usually associated with lead poisoning were not found. Changes in hematocrit and hemoglobin concentration did not occur. After 3 wk ducks fed...
Wildlife importation into the United States, 1900-1972
R.C. Banks
1976, Special Scientific Report - Wildlife 200
Data from Bureau of Biological Survey and U.S. Fish and Wildlife Service reports show an overall increase in the number of birds and mammals imported from 1900 to 1972. The trend was interrupted by World War I, the economic depression of the 1930's, and World War II. Data...