Persistence of rotenone in ponds at different temperatures
P.A. Gilderhus, J. L. Allen, V. K. Dawson
1986, North American Journal of Fisheries Management (6) 129-130
Two ponds were treated with liquid rotenone (5% rotenone), one with 3 mg/L at 24°C and the other with 2 mg/L at 0°C (concentrations of active rotenone were 0.15 and 0.10 mg/L, respectively). Water samples were collected and analyzed by high-performance liquid chromatography. The concentration of rotenone declined to 0.02...
Direct conversion of terpenylalkanolamines to ethylidyne N-nitroso compounds
S. L. Abidi
1986, Journal of Organic Chemistry (51) 2687-2694
A series of mono- and diterpenylalkanolamines bearing isopropylidene functionality on the terpene group was reacted with sodium nitrite in aqueous acetic acid to yield ethylidyne N-nitroso analogues. The key feature of this direct conversion involved initial N-nitrosation followed by apparent elimination of a "CH4" unit (not necessarily methane) from the...
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...
Strains of five trout species used in the management of U.S. fisheries
H. L. Kincaid, C. R. Berry Jr.
1986, Aquaculture (57) 371-371
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...
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,...
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...
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....
Nest-site biology of the California condor
N.F.R. Snyder, R.R. Ramey, F.C. Sibley
1986, Condor (88) 228-241
A study of 72 historical and recent nests of the California Condor (Gymnogyps californianus) has revealed considerable variability in nest-site characteristics. This paper primarily summarizes the data on nest elevations and dimensions, entrance orientations, nest longevity and re-use, vulnerability of sites to natural enemies, and use of sites by other...
Environmental contaminants in surrogates, foods, and feathers of California condors (Gymnogyps californianus)
Stanley N. Wiemeyer, R.M. Jurek, John F. Moore
1986, Environmental Monitoring and Assessment (6) 91-111
California condor (Gymnogyps californianus) foods and feathers, and turkey vultures (Cathartes aura), common ravens (Corvus corax), and their eggs were collected within the condor range to determine exposure of condors to environmental contaminants. Samples were analyzed for organochlorines and trace elements. Food items contained low concentrations of organochlorines and generally...
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...
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...
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...
Trap-related injuries to gray wolves in Minnesota
David W. Kuehn, Todd K. Fuller, L. David Mech, William J. Paul, Steven H. Fritts, William E. Berg
1986, Journal of Wildlife Management (50) 90-91
Gray wolves (Canis lupus) captured in traps with toothed jaws offset 1.8 cm incurred fewer injuries than those captured in 3 other types of steel traps. Few wolves seriously damaged canine or carnassial teeth while in traps....
Estimating nest detection probabilities for white-winged dove nest transects in Tamaulipas, Mexico
J.D. Nichols, R. E. Tomlinson, G. Waggerman
1986, The Auk (103) 825-828
Nest transects in nesting colonies provide one source of information on White-winged Dove (Zenaida asiatica asiatica) population status and reproduction. Nests are counted along transects using standardized field methods each year in Texas and northeastern Mexico by personnel associated with Mexico's Office of Flora and Fauna, the Texas Parks and...
Effect of Orthene on an unconfined population of the meadow vole (Microtus pennsylvanicus)
David A. Jett, James D. Nichols, James E. Hines
1986, Canadian Journal of Zoology (64) 243-250
The possible impact on Microtus pennsylvanicus of ground applications of Orthene® insecticide was investigated in old-field habitats in northern Maryland during 1982 and 1983. The treatment grids in 1982 and 1983 were sprayed at 0.62 and 0.82 kg active ingredient/ha, respectively. A capture–recapture design robust to unequal capture probabilities was utilized to estimate population...
An overview of raptor conservation in Latin America
D. H. Ellis, D.G. Smith
1986, Birds of Prey Bulletin (3) 21-25
Prior to the last decade, biological studies of raptorial birds in Latin America were almost nonexistent. For many species little more was known than their general range and habitat type. The last few years have seen the opening of a door to what will surely be a flood of scientific...
Organochlorine contaminants in passeriformes and other avian prey of the peregrine falcon in the western United States
L.R. DeWeese, L. C. McEwen, Gary L. Hensler, B.E. Petersen
1986, Environmental Toxicology and Chemistry (5) 675-693
About 1,150 individuals of 38 species of Passeriformes and other small birds were collected in 1980 at 36 locations in eight western U.S. states for organochlorine (OC) chemical analysis. The bird carcasses (less beak, tarsi, gastrointestinal tract, and feathers) were combined by species and location (4 to 15 specimens per...
The use of natural vs. man-modified wetlands by shorebirds and waterbirds
R. Michael Erwin, Malcolm Coulter, H. Cogswell
1986, Colonial Waterbirds (9) 137-138
The loss of wetlands continues world-wide. The impact especially has been felt in coastal areas, but water management elsewhere has resulted in marked reductions of aquatic bird populations. Concern for wetland management led to the convocation of a symposium on waterbird and shorebird use of natural and man-modified...
Winter distribution and oiling of common terns in Trinidad: A further look
R.M. Erwin, G. J. Smith, R. B. Clapp
1986, Journal of Field Ornithology (57) 300-308
Common Terns were studied during January and March 1985 in Trinidad as part of wintering terns in Latin America. Eighty-nine birds were captured, 33 in January, 56 in March. Terns averaged 102 .+-. 0.9 g, with March birds weighing more than those caught in January. This weight is similar...
Antibodies against canine parvovirus of wolves of Minnesota: A serologic study from 1975 through 1985
S.M. Goyal, L.D. Mech, R.A. Rademacher, M.A. Khan, U.S. Seal
1986, Journal of the American Veterinary Medical Association (189) 1092-1094
Serum samples (n = 137) from 47 wild wolves (Canis lupus; 21 pups and 26 adults) were evaluated from 1975 to 1985 for antibodies against canine parvovirus, using the hemagglutination inhibition (HI) test. In addition, several blood samples (n = 35) from 14 of these wolves (6 pups and 8...
Potential impacts of agricultural chemicals on waterfowl and other wildlife inhabiting prairie wetlands: An evaluation of research needs and approaches
C.E. Grue, L.R. DeWeese, P. Mineau, G.A. Swanson, J.R. Foster, P.M. Arnold, J.N. Huckins, P.J. Sheenan, W.K. Marshall, A.P. Ludden
1986, Transactions of the North American Wildlife and Natural Resources Conference (51) 357-383
The potential for agricultural chemicals to enter prairie-pothole wetlands and impact wildlife dependent on these wetlands for survival and reproduction appears to be great. However, the actual risk to wetland wildlife from the inputs of these chemicals cannot be adequately assessed at this time, because of insufficient data. Available data...
Use of captive starlings to determine effects of environmental contaminants on passerine reproduction: Pen characteristics and nestling food requirements
Christian E. Grue, L.P. Franson
1986, Bulletin of Environmental Contamination and Toxicology (37) 655-663
No abstract available....
Radiotelemetry locates wintering grounds of DDE-contaminated black-crowned night-herons
Charles J. Henny, L. J. Blus
1986, Wildlife Society Bulletin (14) 236-241
This study was designed to determine if night-herons nesting at Ruby Lake, Nevada, shared a common wintering area with lesser contaminated night-herons nesting farther north in Oregon and Idaho. Radiotelemetry (29 transmitters) and banding studies indicated that the lesser-contaminated Oregon-Idaho night-herons wintered primarily in coastal Mexico (mean 22-23'N latitude), while...
