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Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
ISBN:
Category : Wildlife research
Languages : en
Pages : 92
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Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
ISBN:
Category : Wildlife research
Languages : en
Pages : 92
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Author:
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 270
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Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 96
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"In the calendar year 1964, the main efforts of the Division of Wildlife Research were directed toward consolidation of recently expanded programs on pesticide-wildlife relations and nuisance-animal control. A modest increase in activities associated with the captive propagation of rare and endangered birds was accommodated, and a great deal of planning laid groundwork for future work with threatened species. There was no change in purpose and function of the Division"--Page 1
Author:
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Category : Fishery management
Languages : en
Pages : 52
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Author: Ethel I. Todd
Publisher:
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Category : Sea otter
Languages : en
Pages : 52
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Bibliography stressing recent literature dealing with biology of the sea otter (Enhydra lutris).
Author: James L. Ruos
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 638
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U.S. mourning dove population indexes increased by 4% from 1969 to 1970 in the Eastern Management Unit, but declined 2% in the Central Management Unit and 11% in the Western Management Unit. The changes were below the 10-year means, 1960-69, by 3% in the Eastern Unit, 15% in the Central, and 27% in the Western. Regression analyses of the call-count data for 1960-70 indicate a statistically significant downward trend in dove breeding populations in all management units; mean rates of decline were 1% a year in the Eastern Unit, 3% a year in the Central, and 4% in the Western
Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 76
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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 364
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Author:
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ISBN:
Category : Animals
Languages : en
Pages : 260
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1730
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