Spring Migration of Birds Across the Greenland Inlandice PDF Download
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Author:
Publisher: Museum Tusculanum Press
ISBN: 9788763511810
Category :
Languages : en
Pages : 44
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Book Description
Author:
Publisher: Museum Tusculanum Press
ISBN: 9788763511810
Category :
Languages : en
Pages : 44
Get Book Here
Book Description
Author:
Publisher:
ISBN: 9788717054103
Category : Birds
Languages : en
Pages : 38
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Book Description
Author:
Publisher: Museum Tusculanum Press
ISBN: 9788763511926
Category :
Languages : en
Pages : 20
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Book Description
Author: Eberhard Gwinner
Publisher: Springer Science & Business Media
ISBN: 3642745423
Category : Science
Languages : en
Pages : 436
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Book Description
E. GWINNER! The phenomenon of bird migration with its large scale dimensions has attracted the attention of naturalists for centuries. Worldwide billions of birds leave their breeding grounds every autumn to migrate to areas with seasonally more favor able conditions. Many of these migrants travel only over a few hundred kilo meters but others cover distances equivalent to the circumference of the earth. Among these long-distance migrants are several billion birds that invade Africa every autumn from their West and Central Palaearctic breeding areas. In the Americas and in Asia the scope of bird migration is of a similar magnitude. Just as impressive as the numbers of birds are their achievements. They have to cope with the enormous energetic costs of long-distance flying. particularly while crossing oceans and deserts that do not allow replenishment of depleted fat reserves. They have to appropriately time the onset and end of migrations. both on a daily and annual basis. And finally. they have to orient their migratory movements in space to reach their species- or population-specific wintering and breeding grounds, irrespective of the variable climatic conditions along their migratory routes.
Author: Thomas Alerstam
Publisher: Cambridge University Press
ISBN: 9780521448222
Category : Nature
Languages : en
Pages : 438
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Book Description
Bird migration is one of the most astonishing feats in the natural world. Millions of birds migrate, often over very large distances, to benefit from seasonal resource surpluses and to avoid predators and competitors. The aim of this study is to survey the phenomena.
Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 880
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Book Description
Author: Theunis Piersma
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 374
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Book Description
Author:
Publisher:
ISBN: 9788717055605
Category : Mosses
Languages : en
Pages : 612
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Author:
Publisher: Museum Tusculanum Press
ISBN: 9788763512251
Category :
Languages : en
Pages : 68
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Book Description
Author: Ben D. Bell
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 652
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Book Description
