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Page 4667, results 116651 - 116675

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Environmental contaminants in tissues, foods, and feces of California condors
Stanley N. Wiemeyer, A. J. Krynitsky, S.R. Wilbur
Sanford R. Wilbur, Jerome A. Jackson, editor(s)
1983, Book chapter, Vulture Biology and Management
Two wild California Condors contained moderate to high levels of DDE in their tissues. The levels found could be high enough to cause reproductive problems in adult condors, if the assumption is made that condors are as susceptible to DDE as many other species of birds of prey. Other...
Distribution and abundance of nesting ospreys in the United States
Charles J. Henny
1983, Book chapter, Biology and Management of Bald Eagles and Ospreys
Nesting Ospreys (Pandion haliaetus) in the contiguous United States now number about 8,000 pairs. Five regional populations exist (in order of abundance): Atlantic Coast, Florida and Gulf Coast, Pacific Northwest, Western Interior, and Great Lakes. Pesticides severely impacted the populations in the northern portion of the Atlantic Coast (Boston to...
Use of IPA to demonstrate loss of forest interior birds from isolated woodlots
C.S. Robbins, D.D. Boone
F.J. Purroy, editor(s)
1983, Book chapter, Censos de Aves en el Mediterraneo. Bird Census and Mediterranean Landscape. Proceedings of the VII International Conference on Bird Census IBCC. V Meeting EOAC
'Empleo de indices puntuales de abundancia (IPA) para demostrar la perdida de aves forestales en bosques aislados'. En Maryland, E.U., se seleccionaron bloques boscosos de diferente superficie, divididos en seis clase de tamano (2,8-6 ha, 7-14, 20-30, 34-80, 105-1300, mayores de 4000 ha). En estas ?islas' forestales fue...
Avian artificial insemination and semen preservation
G.F. Gee
Arthur C. Risser, Frank S. Todd, editor(s)
1983, Book chapter, Proceedings of the 1983 Jean Delacour/IFCB Symposium on Breeding Birds in Captivity
Summary: Artificial insemination is a practical propagation tool that has been successful with a variety of birds. Cooperative, massage, and electroejaculation and modifications of these three basic methods of semen collection are described for a variety of birds. Semen color and consistency and sperm number, moti!ity, and morphology, as...
Effects of oil on avian reproduction: A review and discussion
P.H. Albers
Don Rosie, Stephen N. Barnes, editor(s)
1983, Book chapter, The Effects of Oil on Birds: Physiological Research, Clinical Applications and Rehabilitation. A Multi-discipline Symposium
Oil pollution is a highly visible form of environmental contamination that affects avian reproduction in a variety of ways. Plumage oiling causes widespread and locally severe mortality of adult birds. Egg oiling can be a serious hazard for bird embryos but only a few field observationons of this...
Monitoring bird population trends in North America
C.S. Robbins, D. Bystrak, P.H. Geissler
F.J. Purroy, editor(s)
1983, Book chapter, Censos de Aves en el Mediterraneo. Bird Census and Mediterranean Landscape. Proceedings of the VII International Conference on Bird Census IBCC. V Meeting EOAC
Se ofrece un nuevo metodo para computar las oscilaciones demograficas de las aves a lo largo de los anos. Con los datos suministrados por el proyecto 'Aves nidificantes en Norteamerica' , se indican en la Tabla 1 las pautas de cambio numerico de una serie seleccionada de aves holarticas....
Effects of the insecticide, orthene, on unconfined populations of the meadow vole (Microtus pennsylvanicus). I. Capture/recapture procedures; II. Residues and cholinesterase inhibition
David A. Jett
1983, Book
In 1982 and 1983. the population demography of M. pennsylvanicus was not altered significantly by single or double applications of Orthene. Although inconsistencies in population size, survival, and recruitment were not explained by differences between control and experimental grids in breeding, emigration, interspecific competition, or pesticide-induced mortality, there may...
Alternate data sources for soil surveys on rangeland
Emil H. Horvath, A. A. Klingebiel, D. G. Moore, E. A. Fosnight
1983, Open-File Report 83-880
Soil information is an essential theme in a digital information base for land management and resource monitoring, but public land management agencies seldom have detailed soil maps available for all of the area under their administration. Most of these agencies conduct soil surveys on a scheduled basis, but escalating costs...