A.F. O'Connell Jr., M. W. Sayre, H.W. Art
1989, Park Science (9) 4-5
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Page 4501, results 112501 - 112525
Publication Extents
Not all publications have extents, not all extents are completely accurateC.J. Pennycuick, M.R. Fuller, L. McAllister
1989, Journal of Experimental Biology (142) 17-29
Two Harris’ hawks were trained to fly along horizontal and climbing flight paths, while carrying loads of various masses, to provide data for estimating available muscle power during short flights. The body mass of both hawks was about 920g, and they were able to carry loads up to 630 g...
J. A. Spendelow, R.M. Erwin, B. Kenneth Williams
1989, Colonial Waterbirds (12) 51-59
Patterns of co-occurrence of 11 species of nesting colonial Ciconiiformes in estuarine areas of the Atlantic coast from Maine to Florida were examined using Reciprocal Averaging and Detrended Correspondence Analyses. The first RA ordination axis categorized the species into two groups: species of large birds that often nest in...
N.F.R. Snyder, S. R. Beissinger, M.R. Fuller
1989, Journal of Field Ornithology (60) 171-177
The effectiveness and safety of one- and two-stage solar radio-transmitters in tracking the movements and survival of adult and fledgling Snail Kites (Rostrhamus sociabilis) were evaluated between 1979 and 1983 in southern Florida. Transmitters were attached to birds with back-pack arrangements using teflon ribbon straps. Accessory plastic shields minimized feather...
J.D. Nichols, Fred A. Johnson
1989, Transactions of the North American Wildlife and Natural Resources Conference (54) 566-593
Our knowledge of the effects of hunting regulations on duck populations has been based largely on retrospective studies of historical data. We have reached the limits of what can be learned in this way. Future knowledge gains will likely come about only through experimentation and adaptive management....
D. H. Rusch, C.D. Ankney, H. Boyd, J. R. Longcore, Frank Montalbano III, J.K. Ringelman, Vernon D. Stotts
1989, Wildlife Society Bulletin (17) 379-406
1. The purpose of our review was to examine available data on population trends and current status of black ducks and trends in natality and survival and to relate these, where possible, to changes in habitat, predation, disease, contaminants, harvest, and hybridization with mallards. 2. The number of black...
J.R. Sauer, J.E. Hines
1989, Wildlife Society Bulletin (17) 549-550
A computer program was developed to implement the methods described by Sauer and Williams for multiple comparisons of survival or recovery rates...
M. Rands, M.S. Foster
1989, World Birdwatch (11) 6-8
R.J. Meese, M.R. Fuller
1989, Ibis (131) 27-32
This paper describes the distribution and behaviour of passerine birds within 1 km of Peregrine Falcon Falco peregrinus eyries in western Greenland. Passerine populations were censused in 1983 around six cliffs occupied by nesting Peregrines and at six sites on the open tundra, and in 1984 at two unoccupied sites suitable for...
Matthew C. Perry
1989, Fish and Wildlife News 3-5
D.G. McAuley, J. R. Longcore
1989, Journal of Field Ornithology (60) 112-119
Selected aspects of the nesting biology of Ring-necked Ducks in east-central Maine were studied during 1983-1985 and compared to previous studies. Nesting chronology, clutch size, and hatching success were similar to results reported from previous studies, but nest success was 32-42% lower. Thirty-eight percent of the nests were...
C.E. Grue, M.W. Tome, T.A. Messmer, D.B. Henry, G.A. Swanson, L.R. DeWeese
1989, Transactions of the North American Wildlife and Natural Resources Conference (54) 43-58
Included are the reasons for concern over the effects of agrichemicals (pesticides and fertilizers) on prairie-pothole wetlands in the United States. Summarized are the results of studies conducted to date on this topic. Identified is additional research needed to assess the impacts of agrichemicals on these wetlands....
D. J. Hoffman, G. H. Heinz, A. J. Krynitsky
1989, Journal of Toxicology and Environmental Health (27) 263-271
Selenium from selenomethionine accumulated in a dose-dependent manner in the liver, resulting in a decrease in hepatic-reduced glutathione with a corresponding decrease in total hepatic thiols. There was a dose-dependent increase in the oxidized to reduced glutathione ratio, and an increase in lipid peroxidation. These findings indicate that...
J. W. Carpenter, N. Thomas, S. Reeves
1989, American Association of Zoo Veterinarians, Annual Proceedings (1989) 111-112
E. F. Hill
1989, Pesticide Biochemistry and Physiology (33) 264-275
Time- and temperature-dependent postmortem changes in inhibited brain cholinesterase (ChE) activity may confound diagnosis of field poisoning of wildlife by anticholinesterase pesticide. Carbamate-inhibited ChE activity may return to normal within 1 to 2 days of exposure of intact carcass to moderate ambient temperature (18-32C). Organophosphorus-inhibited ChE activity becomes more...
D.C. Thorstenson, D.W. Pollock
1989, Reviews of Geophysics (27) 61-78
The increasing use of natural unsaturated zones as repositories for landfills and disposal sites for hazardous wastes (chemical and radioactive) requires a greater understanding of transport processes in the unsaturated zone. For volatile constituents an important potential transport mechanism is gaseous diffusion. Diffusion, however, cannot be treated as an independent...
Susan W. Kieffer
1989, Reviews of Geophysics (27) 3-38
Sonic velocities of geologic fluids, such as volcanic magmas and geothermal fluids, can be as low as 1 m/s. Critical velocities in large rivers can be of the order of 1–10 m/s. Because velocities of fluids moving in these settings can exceed these characteristic velocities, sonic and supersonic gas flow...
R.I. Tilling
1989, Reviews of Geophysics (27) 237-269
At the beginning of the twentieth century, volcanology began to emerge as a modern science as a result of increased interest in eruptive phenomena following some of the worst volcanic disasters in recorded history: Krakatau (Indonesia) in 1883 and Mont Pelée (Martinique), Soufrière (St. Vincent), and Santa María (Guatemala) in...
M.A. Howe
1989, Fish and Wildlife Technical Report 21
Use of migration stop-overs by radio-tracked whooping cranes (Grus americana) was studied in fall 1981-83 and spring 1983-84. Information on habitat use, time-activity budgets, and hazards encountered is presented for a sample of 27 individuals, including 9 radio-marked birds. Survival rate is calculated for radio-marked birds and compared...
M.J. Conroy, J.E. Hines, B. Kenneth Williams
1989, Resource Publication 175
We briefly review methods for inference from band-recovery data and introduce a new, flexible procedure (MULT) for analysis of data from bird-banding studies. We compare our computing method to program SURIV and discuss the relative advanatages of each. We present several basic model structures that can be analyzed...
J.E. Hines, J.R. Sauer
1989, Fish and Wildlife Technical Report No. 24
This manual describes the use of program CONTRAST, which implements a generalized procedure for the comparison of several rate estimates. This method can be used to test both simple and composite hypotheses about rate estimates, and we discuss its application to multiple comparisons of survival rate estimates. Several...
Chandler S. Robbins, Deanna K. Dawson, Barbara A. Dowell
1989, Book, Wildlife Monographs
Conservation of birds requires an understanding of their nesting requirements, including area as well as structural characteristics of the habitat. Previous studies have shown that many neotropical migrant bird species seem to depend on extensive forested areas, but the specific area requirements of individual species have not been clarified sufficiently...
R. Eisler
1989, Contaminant Hazard Reviews Report 19 ; Biological Report 85(1.19)
Ecological and toxicological aspects of molybdenum (Mo) in the environment are briefly reviewed, with emphasis on fish and wildlife. Subtopics include sources and uses, chemical properties, mode of action, background concentrations in biological and nonbiological samples, and lethal and sublethal effects on terrestrial plants and invertebrates, aquatic organisms, birds,...
Ronald Eisler, Joyce Haber Corley
1989, Contaminant Hazard Reviews Report 16 ; Biological Report 85(1.16)
R. Eisler
1989, Contaminant Hazard Reviews Report 18 ; Biological Report 85(1.18)
The herbicide atrazine (2chloro4ethylamino6isopropylamino1,3,5triazine) is the most heavily used agricultural pesticide in North America. Domestically, more than 50 million kg are applied yearly to more than 25 million ha, primarily to control weeds in corn and sorghum crops. Atrazine residues have been detected in runoff from treated fields in lakes...