Author: M. Smart
Publisher:
ISBN:
Category :
Languages : de
Pages : 167

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Author:
Publisher:
ISBN:
Category : Water birds
Languages : en
Pages : 168

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Author: M. Smart
Publisher:
ISBN:
Category :
Languages : de
Pages : 166

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: Milton Webster Weller
Publisher: U of Minnesota Press
ISBN: 1452908575
Category :
Languages : en
Pages : 647

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Author:
Publisher:
ISBN:
Category : Agricultural ecology
Languages : en
Pages : 244

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Author: Guy Andrew Baldassarre
Publisher:
ISBN:
Category : Playas
Languages : en
Pages : 104

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Author: Milton Webster Weller
Publisher: U of Minnesota Press
ISBN: 0816615713
Category : Science
Languages : en
Pages : 650

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Book Description
Waterfowl in Winter was first published in 1988. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions. The emphasis in research on waterfowl has traditionally focused on breeding as opposed to migrant or wintering birds. Scientists have long been interested in courtship, nest sites, laying, and brood-rearing, and they have also been concerned about losses of eggs, young, nesting hens, and breeding habitats, especially as they have affected the goal of increasing populations. But lately there has been an upsurge of interest and research on the migratory and wintering phases, and this volume offers ample evidence of the knowledge gained. The authors—105 waterfowl biologists—have contributed 47 chapters that range geographically from Alaska to northern South America, and from the Pacific Northwest to Nova Scotia and Florida. Their subjects include: distributional changes due to human influence; population trends and concerns over less common species; pairing and other behavior that occurs in the wintering areas and is vital to the success of the species; feeding ecology and body condition during winter; new habitats created by such activities as aquaculture and park development; losses of habitat due to development and drainage for alternate uses; lead poisoning and pollutants that are detrimental to waterfowl; habitat management for maintenance of successful populations now and in the future. Also presented are reports of workshop discussions outlining current issues and future research needs. Preparation of this volume was assisted by an editorial board comprising Bruce J. J. Batt, Robert H. Chabreck, Leigh H. Fredrickson, and Dennis G. Raveling.

Author: Theodore Arnold Bookhout
Publisher:
ISBN:
Category : Anas
Languages : en
Pages : 166

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Author: Eileen Rees
Publisher: A&C Black
ISBN: 1408128241
Category : Nature
Languages : en
Pages : 305

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Book Description
A fascinating and highly readable monograph, showcasing one of the flagship species of wetland conservation in Britain to superb effect. The arrival of thousands of Bewick's Swans from their Arctic breeding grounds to lakes and wetlands throughout northern and eastern Britain is an unforgettable sight. Popular among both birders and the wider public, these elegant birds are among the best-studied waterfowl in the world. Beginning with the work of the late Sir Peter Scott in the 1950s, Britain's Bewick's have been the subject of intensive behavioural study, while their population ecology has provided a similar focus for research. In Bewick's Swan, Eileen Rees tells the story of these birds in rich detail. Rees discusses their biology in full, with sections on population and distribution, breeding biology, wintering behaviour, food and feeding ecology, taxonomy and phylogeny, migration, and conservation; much original research is included, and there is frequent reference to the Bewick's sibling subspecies, the Tundra Swan of North America. Personal recollections from a lifetime of study weave through the narrative, which is illuminated by Dafila Scott's evocative illustrations.