Responses of the iguanid lizard Anolis carolinensis to four organophosphorus pesticides
R.J. Hall, D. R. Clark Jr.
1982, Environmental Pollution (Series A) (28) 45-52
Dose related mortality and cholinesterase effects of parathion, methyl parathion, azinphos-methyl and malathion on Anolis carolinensis were investigated. The comparative effects of the four compounds on fish, birds and mammals are well known, but the effects of organophosphates on reptiles have not been studied critically. Sensitivity and patterns of mortality from exposure...
Techniques for trapping, aging, and banding wintering canvasbacks
G.M. Haramis, E.L. Derleth, D.G. McAuley
1982, Journal of Field Ornithology (53) 342-351
Techniques used to trap, band, and determine age of Canvasbacks during winter on Chesapeake Bay are presented. Canvasbacks were captured with welded-wire traps baited with corn. Two trap designs were used and traps and trapping techniques are described. Ducks were dipnetted from traps and held in modified poultry crates...
Fall and winter homesite use by wolves in northeastern Minnesota
F.H. Harrington, L.D. Mech
1982, Canadian Field-Naturalist (96) 79-84
Post-abandonment homesite use by wolves (Canis lupus) was studied by radio-tracking and simulated howling in two packs in Superior National Forest, Minnesota. Pups, yearlings, and adults returned intermittently to former homesites up to four months after abandonment, usually after prolonged separation from the pack in early fall. Returns...
Anarbylus switaki Murphy: An addition to the herpetofauna of the United States with comments on relationships with Coleonyx
T. H. Fritts, H.L. Snell, R.L. Martin
1982, Journal of Herpetology (16) 39-52
Anarbys switaki, a species previously known only from Baja California Sur, Mexico, occurs in eastern San Diego and southwestern Imperial Counties in California. In California, specimens tend to have continuous transverse bars on the body, are lighter in color, and more slender in body form than in southern Baja California....
Study of aggregative behavior of Rhinophrynus dorsalis tadpoles: design and analysis
M.S. Foster, R.W. McDiarmid
1982, Herpetologica (38) 395-404
We conducted experiments using the apparatus and design followed by Wassersug and Hessler (1971) and Wassersug (1973) to test the aggregative behavior of tadpoles of Rhinophrynus dorsalis in response to visual and olfactory stimuli. Results neither supported nor refuted the hypothesis that either stimulus is used as a mechanism...
Toxicity of dietary lead in young cockerels
J. Christian Franson, Thomas W. Custer
1982, Veterinary and Human Toxicology (24) 421-423
Day-old cockerels received 1850 ppm dietary lead for 4 wks. Blood delta-aminolevulinic acid dehydratase (ALAD) activity was reduced to 1.6% of control activity by the end of the study. Hemoglobin concentration (Hb) in lead-exposed cockerels was significantly less than that of controls at 7, 14, and 28 days,...
Organochlorine residues in bats after a forest spraying with DDT
Charles J. Henny, Chris Maser, John O. Whitaker Jr., T. Earl Kaiser
1982, Northwest Science (56) 329-337
Background levels of DDT and its metabolites (ZDDT) were extremely low or not detected in five species of forest-dwelling bats in northeastern Oregon, i.e., areas not sprayed with DDT in 1974. Other organochlorine pesticides were rarely found and no polychlotinated biphenyls (PCBs) were detected at any time during the study....
Effects of a chemical dispersant and crude oil on breeding ducks
P.H. Albers, M. L. Gay
1982, Bulletin of Environmental Contamination and Toxicology (29) 404-411
Effects of chemically dispersed crude oil on mallard reproduction. Incubating female mallards were exposed to a water source treated with either Prudhoe Bay crude oil, Corexit 9527, or a combination of oil and dispersant during the first 10 da of development. Used thermocouple probes to monitor incubation temperature....
Ecology of avian brood parasitism at an early interfacing of host and parasite populations
J. W. Wiley
1982, Dissertation Abstracts International (43) 973-B(abs)
The shiny cowbird (Molothrus bonariensis), a brood parasite, has recently spread into the Greater Antilles from South America via the Lesser Antilles. This species is a host generalist and upon reaching Puerto Rico exploited avian communities with no history of social parasitism. Forty-two percent of the resident non-raptorial land bird...
Organophosphate inhibition of avian salt gland Na, K-ATPase activity
W. C. Eastin Jr., W. James Fleming, H. C. Murray
1982, Comparative Biochemistry and Physiology, Part C: Comparative Pharmacology (73) 101-107
1. Adult black ducks (Anas rubripes) were given freshwater or saltwater (1.5% NaCl) for 11 days and half of each group was also given an organophosphate (17 p.p.m. fenthion) in the diet on days 6–11.2. After 11 days, ducks drinking saltrwater had lost more weight and had higher plasma Na...
Estimating reproductive success in colonial waterbirds: An evaluation
R.M. Erwin, T. W. Custer
1982, Colonial Waterbirds (5) 49-56
To estimate reproductive success in a population one ideally would like to determine the number of young fledged per nesting female. However, this is difficult because often (1) the adults are not individually marked, (2) the colony is not visited daily, and (3) the investigator is unable to monitor...
Nesting by one-year-old black-crowned night herons on Hope Island, Rhode Island
Thomas W. Custer, William E. Davis Jr.
1982, The Auk (99) 784-786
There have been few consistent reports concerning the frequency and success of nesting attempts by immature night herons of the genus Nycticorax. One- year-old Black-crowned Night Herons (Nycticorax nycticorax) mated to 2-yr-old or older birds built nests and incubated eggs in the wild (Gross 1923). In a captive colony, many...
Observer variability in estimating numbers: An experiment
R.M. Erwin
1982, Journal of Field Ornithology (53) 159-167
Census estimates of bird populations provide an essential framework for a host of research and management questions. However, with some exceptions, the reliability of numerical estimates and the factors influencing them have received insufficient attention. Independent of the problems associated with habitat type, weather conditions, cryptic coloration, ete.,...
Patuxent's eagle breeding: An update in the 200th year of the Nation's symbol
J. W. Carpenter
1982, Fish and Wildlife News 3
Museum Section, U.S. Fish and Wildlife Service
R.D. Fisher
1982, ASC Newsletter (10) 29-31
Further interpretation of the relation of organochlorine residues in brown pelican eggs to reproductive success
L. J. Blus
1982, Environmental Pollution (Series A) (28) 15-33
This study was conducted to provide additional interpretation of the relation of organochlorine pollutants to reproductive success and population stability of brown pelicans Pelecanus occidentalis in the southeastern United States from 1969 to 1977. The sample egg technique was employed in South Carolina; it involved collecting an egg from each of 156...
Inorganic and organic mercury chloride toxicity to Coturnix: Sensitivity related to age and quantal assessment of physiologic responses
E. F. Hill
1982, Dissertation Abstracts International (43) 57B-58B(abs)
The toxicities of mercuric chloride (HgCl(,2)) and methylmercuric chloride (CH(,3)HgCl) were compared for coturnix (Coturnix coturnix japonica) from hatching to adulthood. Comparisons were based on: (1) Median lethal dosages (LD50) derived by administering single peroral and single intramuscular dosages of mercury, (2) median lethal concentrations (LC50) derived by feeding mercury...
Inclusion body hepatitis in kestrels (Falco sparverius)
L. Sileo, J. C. Franson, D.L. Graham, C.H. Domermuth, Barnett A. Rattner, O. H. Pattee
1982, Conference Paper, Wildlife Disease Association Conference Proceedings
Inclusion body disease of suspected adenovirus etiology was the apparent cause of death of 9 captive kestrels (Falco sparverius). Cloacal hemorrhage was the only prominent gross lesion; disseminated hepatocellular necrosis and intranuclear inclusion bodies were evident microscopically. Attempts to reproduce the disease, and to propagate and serologically characterize...
Occurrence of the Japanese bush-warbler on Maui
J.H. Carothers, R.B. Hansen
1982, 'Elepaio (43) 17-18
No abstract available....
Bat-insecticide problems: an update
D. R. Clark Jr.
1982, Bat Research News (23) 63 (abs)
Organophosphate insecticide poisoning of Canada geese in the Texas panhandle
Donald H. White, C. A. Mitchell, L.D. Wynn, Edward L. Flickinger, E. J. Kolbe
1982, Journal of Field Ornithology (53) 22-27
Sixteen hundred waterfowl, mostly Canada Geese, died near Etter, Texas, in late January 1981 from anticholinesterase poisoning. Winter wheat in the area of the die-off had been treated with organophosphate insecticides to control greenbugs. Cholinesterase (ChE) levels in brains of a sample of geese found dead were 75%...
Care of nestlings by wild female starlings exposed to an organophosphate pesticide
C.E. Grue, G.V.N. Powell, M.J. McChesney
1982, Journal of Applied Ecology (19) 327-335
(1) Our objective was to determine the effect of exposure to an organophosphate pesticide (OP), dicrotophos (3-hydroxy-N,N-dimethyl-cis-scrotonamide dimethyl phosphate), on care of nestlings by wild female starlings (Sturnus vulgaris).(2) We selected twelve pairs of active nests based on synchrony in the reproductive cycle. When nestlings were 10 days old (day...
Influence of protein level and supplemental methionine in practical rations for young endangered masked bobwhite quail
John A. Serafin
1982, Poultry Science (61) 988-990
A study was conducted to examine the protein requirement of young endangered masked Bobwhite quail (Colinus virginianus ridgwayi). Five practical starting rations containing 24 to 32% protein were fed alone and supplemented with methionine for 5 weeks. Supplemental methionine significantly improved growth of quail fed diets containing 24...
Influence of dietary protein and excess methionine on choline needs for young bobwhite quail
John A. Serafin
1982, Poultry Science (61) 902-908
Experiments were conducted with young Bobwhite quail (Colinus virginianus) to investigate the effect of differing dietary protein levels and nondetrimental amounts of excess methionine on choline needs. Growth and feed consumption of quail fed an adequate (27.3%) protein purified diet supplemented with 2000 mg/kg of choline were unaffected by increasing...
Physical, Hydrological, and Biological Characteristics of the Loxahatchee River Estuary, Florida
Benjamin F. McPherson, Maryann Sabanskas, William A. Long
1982, Water-Resources Investigations Report 82-350
The Loxahatchee River estuary empties into the Atlantic Ocean at Jupiter Inlet in southeastern Florida. Although relatively small, the estuary is important for its esthetic value and for its sport fishing, boating, recreation, tourism, and prime residential development. In recent years, the condition of the estuary has become of concern...
