Author: Gregory Alan Perkins
Publisher:
ISBN:
Category : Canada goose
Languages : en
Pages : 240

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Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 884

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Book Description

Author: Robin Ann Butler
Publisher:
ISBN:
Category :
Languages : en
Pages : 240

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Book Description

Author: Harold Carsten Hanson
Publisher: Southern Illinois University Press
ISBN:
Category : Nature
Languages : en
Pages : 336

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Book Description
"This revised edition is not an expanded version of the original, summarizing, for example, the dozens of studies that hve been made of the productivity of various subpopulations of the "Giant Canada Goose" since its rediscovery. Rather, the main objectives of this revised, slightly enlarged edition are to redefine the range of this race as it was originally understood and to correct earlier assumptions based on the literature as to racial identity of peripheral populations."--Page xvii.

Author: Jeffrey Scott Lawrence
Publisher: Ann Arbor, Mich. : University Microfilms International
ISBN:
Category : Canada goose
Languages : en
Pages : 380

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Author: Michael R. Sertle
Publisher:
ISBN:
Category :
Languages : en
Pages : 190

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Book Description
Understanding factors that influence reproductive success is important for managing waterfowl populations. Current breeding density of giant Canada geese ( Branta canadensis maxima ) in the northern 2/3 of Illinois is three times greater than that of the southern 1/3 of Illinois. Previous research indicates that goose population abundance is most likely influenced by mortality of adults, nest success, and gosling growth. In this study, I examined the aspects of fecundity that are most likely to affect giant Canada goose reproduction in southern Illinois: clutch size, nest success, and gosling growth. The average clutch size was 5.0 eggs/nest, and the average nest success was estimated to be 60%. Adult male geese in northern and central Illinois tended to be in better body condition than males in southern Illinois. There was, however, no difference in adult body condition of females between northern, central, and southern Illinois.

Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 518

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Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 52

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Book Description

Author:
Publisher:
ISBN:
Category : Canada goose
Languages : en
Pages : 72

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Book Description
All aspects of Canada goose biology, research, management and taxonomy are included. Literature search was carried out through 1977. 646 citations.

Author: United States. Bureau of Sport Fisheries and Wildlife
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 794

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Book Description
Emphasis is on the needs of the 48 species of ducks, geese and swans, and the conservation of the lands and waters which sustain them.