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Author : H. Albert Hochbaum
Publisher : Unknown
Page : 322 pages
File Size : 55,5 Mb
Release : 1955
Category : Electronic
ISBN : 8210379456XXX
Author : H. Albert Hochbaum
Publisher : Unknown
Page : 128 pages
File Size : 46,7 Mb
Release : 1956
Category : Electronic
ISBN : OCLC:1042949282
Author : H. Albert Hochbaum
Publisher : Unknown
Page : 320 pages
File Size : 49,8 Mb
Release : 2017-08-24
Category : History
ISBN : 1376212382
Author : Thomas E. Morse
Publisher : Unknown
Page : 240 pages
File Size : 46,5 Mb
Release : 1975
Category : Electronic
ISBN : MINN:31951D00344889O
Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 152 pages
File Size : 51,5 Mb
Release : 1957
Category : Birds
ISBN : CORNELL:31924000077598
Contains information on waterfowl and related species of migratory birds.
Author : Milton Webster Weller
Publisher : U of Minnesota Press
Page : 650 pages
File Size : 49,8 Mb
Release : 1988
Category : Science
ISBN : 9780816615711
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 : Janet Kear
Publisher : A&C Black
Page : 289 pages
File Size : 49,8 Mb
Release : 2010-11-30
Category : Nature
ISBN : 9781408137604
The involvement of humans with ducks, geese and swans has probably been closer than with any other group of birds, today and for several millenia past. This involvement, in its many aspects, is the theme of this compelling and readable account by an Assistant Director of the Wildfowl and Wetlands Trust. Dr Kear ranges widely, from a summary of the taxonomy and natural history of wildfowl, through a history of domestication world wide, to wildfowling, decoys, conservation and captive breeding, conflicts with agriculture, and wildfowl in legend and literature. Throughout, the text abounds with little-known facts and insights to intrigue the general reader and expert alike - a reflection of the author's wide reading and affection for her subject. Jacket illustrations by Joe Blossom.
Author : Loren M. Smith,Roger L. Pederson,Richard M. Kaminski
Publisher : Texas Tech University Press
Page : 586 pages
File Size : 49,9 Mb
Release : 1989
Category : Business & Economics
ISBN : 089672204X
This important compilation on habitat management for waterfowl throughout North America addresses practicing waterfowl biologists and managers, researchers, and students of waterfowl ecology and management.
Author : Anonim
Publisher : Unknown
Page : 842 pages
File Size : 40,6 Mb
Release : 1954
Category : Wildlife conservation
ISBN : UIUC:30112010269311
Author : Aldo Starker Leopold
Publisher : Univ of California Press
Page : 594 pages
File Size : 55,7 Mb
Release : 1959
Category : Science
ISBN : 0520007247
Author : Anonim
Publisher : Unknown
Page : 16 pages
File Size : 49,8 Mb
Release : 1988
Category : Ducks
ISBN : MINN:31951D025776043
Author : Anonim
Publisher : Unknown
Page : 16 pages
File Size : 43,5 Mb
Release : 1971
Category : Ducks
ISBN : IND:30000065769568
Author : United States. Bureau of Sport Fisheries and Wildlife
Publisher : Unknown
Page : 16 pages
File Size : 44,5 Mb
Release : 1970
Category : Anas
ISBN : STANFORD:36105123791944
Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 346 pages
File Size : 50,7 Mb
Release : 1954
Category : Animals
ISBN : PSU:000020750039
Author : David Raymond Anderson
Publisher : Unknown
Page : 178 pages
File Size : 44,9 Mb
Release : 1972
Category : Bird populations
ISBN : UCR:31210024953661
Simple experiments and observations reveal the physical properties of light.
