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Page 5156, results 128876 - 128900

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Organochlorine residues in Atlantic coast black-crowned night-heron eggs, 1979
T. W. Custer, C.M. Bunck, T. E. Kaiser
1983, Colonial Waterbirds (6) 160-167
Eggs of Black-crowned Night-Herons (Nycticorax nycticorax) were collected in 1979 from two colonies in North Carolina, two colonies in Rhode Island, and one colony in Massachusetts. Mean concentrations of DDE and PCBs were higher in the New England samples than in those from North Carolina, Mean concentrations of organochlorine contaminants...
Crane reproductive physiology and conservation
G.F. Gee
1983, Zoo Biology (2) 199-213
Some unique features of crane reproduction, management, and conservation are described. Because cranes are sexually monomorphic, sexing is difficult and must be accomplished using behavior, laparoscopy, cloacal examination, genetic techniques, or fecal steroid analysis. Although husbandry techniques for cranes are similar to those used with other nondomestic birds, a number...
Mate changes by black-bellied whistling ducks
Don Delnicki
1983, The Auk (100) 728-729
Delacour and Mayr (1945) suspected that whistling ducks (Dendrocygnini) kept the same mate for life. Bolen (1971) confirmed that Black-bellied Whistling Duck (Dendrocygna autumnalis) pairs remain together from year to year and reported one pair that had nested together for at least 4 yr. My recapture records of birds banded...
Organochlorine residues in common tern eggs from nine Atlantic coast colonies, 1980
T. W. Custer, R.M. Erwin, C. Stafford
1983, Colonial Waterbirds (6) 197-204
In 1980, 178 Common Tern (Sterna hirundo) eggs were collected in nine colonies from Rhode Island to North Carolina and were analyzed for organochlorines. DDE and PCBs were detected in most of the eggs. Mean concentrations of DDE and PCBs differed among colonies and seemed related to local...
Effects of dietary ABATE® on reproductive success, duckling survival, behavior, and clinical pathology in game-farm mallards
J. Christian Franson, James W. Spann, Gary Heinz, Christine M. Bunck, Thair Lamont
1983, Archives of Environmental Contamination and Toxicology (12) 529-534
Forty-four pairs of game-farm mallards (Anas platyrhynchos) were fed ABATE® 4E (temephos) to yield 0, 1, or 10 ppm ABATE® beginning before the initiation of lay, and terminating when ducklings were 21 days of age. The mean interval between eggs laid was greater for hens fed 10 ppm...
Feeding habitats of nesting wading birds: Spatial use and social influences
R. Michael Erwin
1983, The Auk (100) 960-970
In an effort to relate social interactions to feeding-habitat use, I observed six species of wading birds near a major colony site in coastal North Carolina. Three spatial scales of habitat use were considered: the general orientation to and from the colony (coarsest level), the habitat "patch," and (at the...
Effects of chronic dietary lead in American kestrels (Falco sparverius)
J. Christian Franson, Louis Sileo, Oliver H. Pattee, John F. Moore
1983, Journal of Wildlife Diseases (19) 110-113
American kestrels were fed a diet containing 0, 10, or 50 ppm lead (Pb) powder for at least 5 mo. Blood delta-aminolevulinic acid dehydratase (ALAD) activity in birds receiving 50 ppm Pb was as low as 20% of controls but no significant effects were noted in packed cell volume (PCV)...
Distribution and ecology of marine turtles in waters off the southeastern United States
T. H. Fritts, W. Hoffman, M.A. McGehee
1983, Journal of Herpetology (17) 327-344
Aerial surveys of marine waters up to 222 km from shore in the Gulf of Mexico and nearby Atlantic Ocean suggest that marine turtles are largely distributed in waters less than 100 m in depth. The loggerhead turtle (Caretta caretta) was observed nearly 50 times as often in waters off...
Year and age effects on residues of dieldrin and heptachlor in dead gray bats, Franklin County, Missouri— 1976, 1977, and 1978
D. R. Clark Jr., C.M. Bunck, E. Cromartie, R. K. LaVal
1983, Environmental Toxicology and Chemistry (2) 387-393
Dead gray bats (Myotis grisescens) containing lethal concentrations of dieldrin were found beneath a maternity roost in Bat Cave Nos. 2 and 3, Franklin County, Missouri, in 1976, 1977 and 1978. Whereas residues of dieldrin, DDE [1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene] and PCB polychlorinated biphenyls in bats appeared not to change significantly over the...
DDE in brown and white fat of hibernating bats
D. R. Clark Jr., A. J. Krynitsky
1983, Environmental Pollution (Series A) (31) 287-299
Samples of brown and white fat from hibernating bats (big brown bat, Eptesicus fuscus; little brown bat, Myotis lucifugus; and eastern pipistrelle, Pipistrellus subflavus) collected in western Maryland, USA, were analysed to determine lipid and DDE content. Amounts of brown fat, expressed as percentages of...
Effects of roads on small mammals
L.W. Adams, A. D. Geis
1983, Journal of Applied Ecology (20) 403-415
(1) The study was designed to determine the effects of roads on the diversity, spatial distribution, and density of small mammals. (2) Forty species of small mammal (5859 individuals) were snap-trapped in the study. Data resulted from 144 360 trap-nights of effort for an average of 4.06 captures per 100...