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Page 5630, results 140726 - 140750

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Organochlorine pollutants and population status of least terns in South Carolina
L. J. Blus, R. M. Prouty
1979, The Wilson Bulletin (91) 62-71
Least Tern nesting colonies on the Cape Romain National Wildlife Refuge and surrounding areas in South Carolina were studied from 1971 through 1975. We located 10 colonies including 6 on the Refuge and 4 on nearby coastal islands. The number of nests in each colony ranged from several up to...
No. 2 fuel oil decreases embryonic survival of great black-backed gulls
Nancy C. Coon, Peter H. Albers, Robert C. Szaro
1979, Bulletin of Environmental Contamination and Toxicology (21) 152-156
The great black-backed gull (Larus marinus) is widespread in the northern hemisphere, breeding south to Britain and Ireland on the European side of the Atlantic and to Long Island in the United States where populations have increased markedly during the last 50 years (DRURY 1979). With growing exploitation of oil...
Effects of organochlorine residues on eggshell thickness, reproduction, and population status of brown pelicans (Pelecanus occidentalis) in South Carolina and Florida, 1969-76
L. J. Blus, T. G. Lamont, B.S. Neely Jr.
1979, Pesticides Monitoring Journal (12) 172-184
Shells of brown pelican (Pelecanus occidentalis) eggs collected in South Carolina from 1969 through 1975 and in Florida during 1969, 1970, and 1974 were significantly thinner (P greater than 0.05) than eggshells collected before 1947. Thickness of South Carolina eggshells increased in 1975, and mean thickness of eggshells collected in...
Organochlorine residues in six species of estuarine birds, South Carolina, 1971-75
L. J. Blus, T. G. Lamont
1979, Pesticides Monitoring Journal (13) 56-60
In South Carolina between 1971 and 1975, authors evaluated the occurrence of organochlorine residues in the laughing gull (Larus atricilla), white ibis (Eudocimus albus), glossy ibis (Plegadis falcinellus), American oystercatcher (Haematopus palliatus), willet (Catoptrophorus semipalmatus), and ruddy turnstone (Arenaria interpres). Tissues of birds found dead and eggs were analyzed, eggshell...
Multiple-factor influences upon feeding flight rates at wading bird colonies (Alias: Are flight-line counts useful?)
R. Michael Erwin, John C. Ogden
1979, Conference Paper, Proceedings of the 1979 conference of the colonial waterbird group
The temporal patterns of feeding, resting, and reproductive behavior in colonial wading birds have been studied by a number of investigators (Recher and Recher 1972, King 1974, Capen 1978, Custer and Osborn 1978, Kushlan 1978) both on a short-term (daily) and long-term (annual) basis. In coastal marine environments, activities...
Mercury residues in tissues of dead and surviving birds fed methylmercury
Mack T. Finley, William H. Stickel, R. E. Christensen
1979, Bulletin of Environmental Contamination and Toxicology (21) 105-110
Concentrations of mercury in passerine birds fed diets containing 40 ppm methylmercury were similar in tissues of birds that died from mercury poisoning and in those that were sacrificed after half the group had died. Residues were higher in tissues of birds that died, but the differences were not statistically...
Pharmacokinetics of gentamicin in blood plasma of quail, pheasants, and cranes
R.S. Custer, M. Bush, J. W. Carpenter
1979, American Journal of Veterinary Research (40) 892-895
Rate of appearance, peak concentration, and the biological half-life of gentamicin in the plasma of quail (Coturnix coturnix), pheasants (Phasianus colchicus), and cranes (Grus canadensis tabida) were studied. Gentamicin was given IM in doses of 5, 10, and 20 mg/kg of body weight. Peak plasma concentrations occurred earliest in the...
Recovery of breeding success in a population of brown pelicans
Vivian M. Mendenhall, Richard M. Prouty
1979, Conference Paper, Proceedings of the 1978 conference of the colonial waterbird group
Breeding populations of the brown pelican (Pelecanus occidentalis) declined during the 1960's on both east and west coasts of the United States. In 1969, colonies in South Carolina fledged an average of 0.78 young per nest (Blus et al. 1974b), and those in California only 0.004 (Anderson et al....
Acute oral and percutaneous toxicity of pesticides to mallards: Correlations with mammalian toxicity data
R. H. Hudson, M. A. Haegele, R. K. Tucker
1979, Toxicology and Applied Pharmacology (47) 451-460
Acute oral (po) and 24-hr percutaneous (perc) LD50 values for 21 common pesticides (19 anticholinesterases, of which 18 were organophosphates, and one was a carbamate; one was an organochlorine central nervous system stimulant; and one was an organonitrogen pneumotoxicant) were determined in mallards (Anas platyrhynchos). Three of the pesticides tested...
Endocrine correlates of reproduction in the wolf. I. Serum progesterone, estradiol and LH during the estrous cycle
U.S. Seal, E.D. Plotka, J.M. Packard, L.D. Mech
1979, Biology of Reproduction (21) 1057-1066
The estrous cycle of 10 intact female wolves, aged 8 months-8 years at the initiation of the study, was characterized in terms of vaginal smears, behavioral observations and serum concentrations of estradiol-17β, progesterone and luteinizing hormone (LH) from January through June. No estrous cycles occurred in these animals between...
Bone development in black ducks as affected by dietary toxaphene
P. M. Mehrle, M. T. Finley, J. Larry Ludke, F.L. Mayer, T. E. Kaiser
1979, Pesticide Biochemistry and Physiology (10) 168-173
Black ducks, Anas rubripes, were exposed to dietary toxaphene concentrations of 0, 10, or 50 μg/g of food for 90 days prior to laying and through the reproductive season. Toxaphene did not affect reproduction or survival, but reduced growth and impaired backbone development in ducklings. Collagen, the organic matrix of...
Embryotoxic and teratogenic effects of petroleum hydrocarbons in mallards (Anas platyrhynchos)
D. J. Hoffman
1979, Journal of Toxicology and Environmental Health (5) 835-844
Egg surface applications of microliter quantities of crude and refined oils of high aromatic content are embryotoxic to mallards (Anas platyrhynchos) and other avian species; applications of aliphatic hydrocarbons have virtually no effect. Mallard eggs at 72 h of development were exposed to a mixture of aromatic hydrocarbons or to...
A selected bibliography: Remote sensing techniques for evaluating the effects of surface mining
David M. Carneggie, Donald O. Ohlen
1979, Report
This bibliography contains 39 citations of technical papers and other publications dealing with the applications of remote sensing techniques for analyzing and monitoring surface mining. These references summarize recent developments in methods used to identify, map, analyze, and monitor surface mining, particularly coal surface mining....