Dynamics of alewives in Lake Ontario following a mass mortality
Robert O’Gorman, Clifford P. Schneider
1986, Transactions of the American Fisheries Society (115) 1-14
The U.S. Fish and Wildlife Service and the New York Department of Environmental Conservation assessed the population of alewives Alosa pseudoharengus in U.S. waters of Lake Ontario during 1976–1982 with bottom trawls. Alewives were abundant in 1976 but a die-off greatly reduced their numbers during the winter of 1976–1977. The...
Disabled vets hook big ones in Uncle Sam's pond
J. Hall, G.S. Gutsell
1986, Disabled American Veterans Magazine (Aug) 16-16
A kinematic model of southern California
R. Weldon, E. Humphreys
1986, Tectonics (5) 33-48
We propose a kinematic model for southern California based on late Quaternary slip rates and orientations of major faults in the region. Internally consistent motions are determined assuming that these faults bound rigid blocks. Relative to North America, most of California west of the San Andreas fault is moving parallel...
The relationship between body mass and survival of wintering canvasbacks
G.M. Haramis, J.D. Nichols, K. H. Pollock, J.E. Hines
1986, The Auk (103) 506-514
Mass and recapture histories of 6,000 Canvasbacks (Aythya valisineria) banded in upper Chesapeake Bay were used to test two hypotheses: (1) early-winter body mass is associated with the probability of surviving the winter, and (2) early-winter body mass is associated with annual survival probability. Data were analyzed by a binary...
Analysis of utilization of desert habitats with dynamic simulation
B. Kenneth Williams
1986, Journal of Environmental Management (23) 1-18
The effects of climate and herbivores on cool desert shrubs in north-western Utah were investigated with a dynamic simulation model. Cool desert shrublands are extensively managed as grazing lands, and are defoliated annually by domestic livestock. A primary production model was used to simulate harvest yields and shrub...
Mercury, selenium, cadmium and organochlorines in eggs of three Hawaiian seabird species
H. M. Ohlendorf, S. Harrison
1986, Environmental Pollution (Series B) (11) 169-191
Eggs of three representative species of seabirds (wedge-tailed shearwater Puffinus pacificus; red-footed booby Sula sula; and sooty tern Sterna fuscata) were collected in 1980 to determined differences in heavy metal, Se, and organochlorine residues among species nesting in the Hawaiian Archipelago and among the four nesting sites sampled (Oahu, French Frigate Shoals, Laysan,...
Metal residues in bat colonies, Jackson County, Florida, 1981-1983
D. R. Clark Jr., A.S. Wenner, John F. Moore
1986, Florida Field Naturalist (14) 38-45
No abstract available....
Frozen gene pools - A future for species otherwise destined for extinction
G.F. Gee
1986, American Association of Zoological Parks and Aquariums Regional Conference Proceedings (1986) 80-87
Conclusion: Semen banks and ova and embryo banks can be practical methods to maintain gene pools. Gene pool preservation is desperately needed today due to the rapid decline in number of species and their habitat, a matter that is of concern to.biologists, economists, and politicians worldwide. Techniques are available for...
Depression of plasma luteinizing hormone concentration in quail by the anticholinesterase insecticide parathion
Barnett A. Rattner, R.N. Clarke, M. A. Ottinger
1986, Comparative Biochemistry and Physiology, Part C: Comparative Pharmacology (83) 451-453
1. To examine the effects of parathion on basal plasma luteinizing hormone (LH) concentration, male Japanese quail (Coturnix japonica) were orally intubated with 0, 5 or 10 mg/kg parathion and sacrificed after 4, 8 and 24 hr.2. At the 5 mg/kg dose, plasma LH levels were reduced at 4 and...
The eighty-sixth Christmas bird count. 464. Southern Dorchester County, MD
C.S. Robbins
1986, American Birds (40) 727
Growth of shiny cowbird and host chicks
J. W. Wiley
1986, The Wilson Bulletin (98) 126-131
The eighty-sixth Christmas bird count. Georgia, Florida
P.W. Sykes Jr.
1986, American Birds (40) 1037-1039
A re-examination of biomagnification of metals in terrestrial food chains
W. N. Beyer
1986, Environmental Toxicology and Chemistry (5) 863-864
No abstract available....
Trace elements in sediments, water, and American coots (Fulica americana) at a coal-fired power plant in Texas, 1979-1982
Donald H. White, Kirk A. King, C. A. Mitchell, B.M. Mulhern
1986, Bulletin of Environmental Contamination and Toxicology (36) 376-383
No abstract available....
The eighty-sixth Christmas bird count. 457. Ocean City, MD
C.S. Robbins
1986, American Birds (40) 725
Chemical scent constituents in urine of wolf (Canis lupus) and their dependence on reproductive hormones
J. Raymer, D. Wiesler, M. Novotny, C. Asa, U.S. Seal, L.D. Mech
1986, Journal of Chemical Ecology (12) 297-314
The volatile components of castrated male and ovariectomized female wolf urine were investigated and correlated with the administration of testosterone or estradiol and progesterone. The results indicate that testosterone induces in the castrated male the formation of some compounds typically associated with the intact male, while reducing the levels of...
Domingo's story
D. H. Ellis
1986, North American Falconers Association Journal (25) 64
Extremely tall eagle nests
D. H. Ellis
1986, National Geographic Research (2) 517-519
Response: Evidence for selection of old trees by red-cockaded woodpeckers
B. Kenneth Williams, R. Field
1986, Wildlife Society Bulletin (14) 322-325
Status and conservation of raptors in the West Indies
J. W. Wiley
1986, Birds of Prey Bulletin (3) 57-70
This week?s Citation Classic: 'Stickel, L. F. A comparison of certain methods of measuring ranges of small mammals. J. Mammalogy 35: 1-15, 1954.'
L.F. Stickel
1986, Current Contents / Agriculture, Biology & Environmental Sciences (17) 18
During my first employment as a junior biologist conducting food habits analyses at the Patuxent Research Refuge (now Patuxent Wildlife Research Center) of the US Fish and Wildlife Service, the first station director, Arnold L. Nelson, gave each staff biologist the opportunity to spend a little time conducting field studies...
Bird-borne satellite transmitter and location program
T.E. Strikwerda, M.R. Fuller, W.S. Seegar, P.W. Howey, H.D. Black
1986, Johns Hopkins APL Technical Digest (7) 203-208
Reproduction and health of mallards fed endrin
J. W. Spann, G. H. Heinz, C.S. Hulse
1986, Environmental Toxicology and Chemistry (5) 755-759
Concentrations of 0, 1 and 3 ppm endrin in dry duck mash were fed to mallards (Anas platyrhynchos) starting in December, and health and reproduction were measured the following spring and summer. One male fed 3 ppm endrin died with 2.0 ppm endrin (wet weight), a diagnostically lethal level, in...
Differences in mortality among bobwhite fed methylmercury chloride dissolved in various carriers
J. W. Spann, G. H. Heinz, M.B. Camardese, E. F. Hill, John F. Moore, H. C. Murray
1986, Environmental Toxicology and Chemistry (5) 721-724
Twelve-day-old bobwhite chicks were fed a diet containing 0, 5.4 or 20 ppm methylmercury chloride. The methylmercury chloride was added to the diet either in a dry, pulverized form or dissolved in acetone, propylene glycol or corn oil. Mortality was measured for 6 weeks, and samples of liver were saved...
[Book review] Birds of the Cayman Islands by Patricia Bradley
J. W. Wiley
1986, Florida Field Naturalist (14) 110-111
No abstract available....
