King and Common Eiders of the Western Canadian Arctic PDF Download
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Author: D. Lynne Dickson
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 80
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Book Description
"Two eider populations breed in the western Canadian Arctic and winter in the Bering Sea: the Pacific subspecies of the Common Eider Somateria mollissima v-nigra and the western Arctic population of the King Eider S. spectabilis. Both eiders are harvested primarily in the spring by the Aboriginal people of northern communities and to a small extent in faIl by sport hunters. Some eggs of the colonially nesting Common Eider are also taken. Compared with other harvested waterfowl, there are few available data on even the most basic aspects of the biology of these two eider populations, induding their status and nesting distribution"--Introd.
Author: D. Lynne Dickson
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 80
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Book Description
"Two eider populations breed in the western Canadian Arctic and winter in the Bering Sea: the Pacific subspecies of the Common Eider Somateria mollissima v-nigra and the western Arctic population of the King Eider S. spectabilis. Both eiders are harvested primarily in the spring by the Aboriginal people of northern communities and to a small extent in faIl by sport hunters. Some eggs of the colonially nesting Common Eider are also taken. Compared with other harvested waterfowl, there are few available data on even the most basic aspects of the biology of these two eider populations, induding their status and nesting distribution"--Introd.
Author: D. Lynne Dickson
Publisher:
ISBN:
Category : Animal radio tracking
Languages : en
Pages : 8
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Book Description
A study conducted by three agencies to locate the staging, molting, and wintering areas of king eiders in the Beaufort, Chukchi, and Bering seas and to determine the dates and time periods spent at each location. The study was initiated in response to king eider population decline in western arctic North America between 1976 and 1994.
Author: Bruce Calvert Turner
Publisher:
ISBN:
Category : Eider
Languages : en
Pages : 0
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Book Description
Author: Canadian Wildlife Service
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 422
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Book Description
Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 28
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Book Description
Author:
Publisher:
ISBN:
Category : Eider
Languages : en
Pages :
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Author: Paul Johnsgard
Publisher: Lulu.com
ISBN: 1609621069
Category : Nature
Languages : en
Pages : 258
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Book Description
The 21 species of sea ducks are one of the larger subgroups (Tribe Mergini) of the waterfowl family Anatidae, and the 16 species (one historically extinct) that are native to North America represent the largest number to be found on any continent, and also the largest number of endemic sea duck species native to any continent. Although generally not important as game birds, the sea ducks include some economically important birds such as the eiders, the basis for the Arctic eiderdown industry and a historically important food source for some Native American cultures. They also include what is probably the most northerly breeding species of all waterfowl and an icon of Arctic bird life, the long-tailed duck. The sea ducks also include species having some of the most complex and diverse pair-forming postural and acoustic displays of all waterfowl (goldeneyes and bufflehead), and some of the deepest diving species of all waterfowl (scoters and long-tailed duck). Sea ducks are highly prone to population disasters caused by oil spills and other water contaminants and, like other seabirds, are among the first bird groups that are being affected by current global warming trends in polar regions. This book is an effort to summarize succinctly our current knowledge of sea duck biology and to provide a convenient survey of the vast technical literature on the group, with over 900 literature references. It also includes 90,000 words of text (more than 40 percent of which is new), 15 updated range maps, 11 black & white and 20 color photographs, over 30 ink drawings, and nearly 150 sketches. Lastly, the North American sea ducks include the now extinct Labrador duck, the only northern hemisphere waterfowl species to have gone extinct in modern times. I have gratefully reprinted a Labrador duck watercolor by Sir Peter Scott. Considering recent population crashes in other sea ducks, such as the Steller's eider and spectacled eider, it should also offer a sobering reminder of the fragility of our natural world and its inhabitants, including us.
Author: Chris Waltho
Publisher: Bloomsbury Publishing
ISBN: 1408152800
Category : Nature
Languages : en
Pages : 424
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Book Description
A monograph of the Common Eider, a large and familiar duck with a long and fascinating cultural history. A common sight around the more northerly shores of the British Isles, the Common Eider is the largest duck in the northern hemisphere. The eider is particularly well adapted to cold-water environments; the insulating properties of eider down are iconic. The species is taxonomically interesting, with a range of well-marked subspecies reflecting the patterns of ice coverage during ancient glaciations, and these ducks have also provided the focus for a number of important behavioural studies, especially on feeding ecology and energy budgets. Eiders have a long association with humans, and have deep cultural significance in many societies. However, modern lifestyles are exposing these ducks to a wide range of new pressures. This monograph provides a comprehensive portrait of the Common Eider; authors Chris Waltho and John Coulson bring together an extensive and diverse international literature, with sections on taxonomy, habitats, breeding biology, population dynamics, diet and foraging, dispersal and migration, and conservation.
Author: D. Lynne Dickson
Publisher:
ISBN: 9781100202389
Category : Eider
Languages : en
Pages : 58
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Book Description
Author: Rudolph Martin Anderson
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 26
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Book Description
