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Page 6445, results 161101 - 161125

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The impact of disease on wildlife populations
C. M. Herman
1969, BioScience (19) 321-330
It is postulated that disease is a product of adverse habitats. Overpopulation causes overutilization of food supplies, which results in malnutrition and a decrease in resistance to diseases. Examples of such ecological relationships in populations of Canada geese, California quail, red grouse, deer, rabbits, voles, mice and lemmings...
The Breeding Bird Survey, 1967 and 1968
C.S. Robbins, W.T. Van Velzen
1969, Special Scientific Report - Wildlife 124
In the Breeding Bird Survey of North America, cooperators ran 982 survey routes in 1967 and 1,174 in 1968. All States except Hawaii and all Canadian Provinces except Newfoundland were included. Roadside routes are selected at random within 1-degree blocks of latitude and longitude. Each 24 1/2-mile route, with 3-minute...
Homes for Birds
E.R. Kalmbach, W.L. McAtee, D.D. Boone
1969, Conservation Bulletin 14, revised
Statement
C. M. Herman
1969, Book chapter, Hearing before the Subcommittee on Fisheries and Wildlife Conservation of the Committee on Merchant Marine and Fisheries, U.S. House of Representatives, 91st Congress, on the recent outbreak of botulism in the Tulare Lake Basin of California's Joaquin Valley. Serial No. 91-8
Blood protozoa of free-living birds
C. M. Herman
Archibald McDiarmid, editor(s)
1969, Book chapter, Diseases in free-living wild animals: the proceedings of a symposium held at the Zoological Society of London on 9 and 10 May 1968
Blood protozoa were first reported from wild birds in 1884. Since then numerous surveys throughout the world have demonstrated their presence in a wide variety of hosts and localities with continuing designations of new species. Taxonomic determinations include parasites in the genera Plasmodium, Haemoproteus, Leucocytozoon, Babesia, Lankesterella and Trypanosoma....
Tissue residues of dieldrin in relation to mortality in birds and mammals
W. H. Stickel, L.F. Stickel, J. W. Spann
M.W. Miller, G.G. Berg, editor(s)
1969, Book chapter, Chemical Fallout: Current Research on Persistent Pesticides. Proceedings of the First Rochester Conference on Toxicity
An experiment was performed with Coturnix to learn what residue levels were indicative of death from dieldrin poisoning. Birds were fed diets containing 250, 50, 10, and 2 ppm dieldrin for periods up to 158 days. The dieldrin was 95% pure HEOD, which is 1,2,3,4,10,10-hexachloro-6, 7.epoxy. l,4,4a,5,6,7,8,8a-octahydro-l,4-endo,exo-5,8- dimethanonaphthalene....
Water resources investigation program for Rio Aconcagua Valley, Chile
John Ezra Moore
1969, Report
This report, prepared at the request of the Government of Chile under the auspices of the U. S. Agency for International Development (US AID), is based on a 2-month assignment (Oct. 22 to Dec. 31, 1969) of the author and outlines a program of water resources studies. The study program,...
Activities and services of the U.S. Geological Survey, Denver area, Colorado
Water Resources Division, U.S. Geological Survey
1969, Report
This booklet is a summary of the activities and services of the United States Geological Survey, written for people who have visited or plan to visit one or more of its offices in the Denver area as well as to provide general information about the Geological Survey and its work....