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Author: Simon Delany
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 240
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Book Description
Identifying distinct biogeographic populations of waterfowl from 868 species worldwide, this work highlights the changes which have taken place in recent years.
Author: Simon Delany
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 240
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Book Description
Identifying distinct biogeographic populations of waterfowl from 868 species worldwide, this work highlights the changes which have taken place in recent years.
Author: Simon Delany
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 252
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Book Description
Author: David Li Zuo Wei
Publisher:
ISBN: 9789058820204
Category : Birds
Languages : en
Pages : 166
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Book Description
Author: G. C. Boere
Publisher: The Stationery Office
ISBN: 0114973334
Category : Flyways
Languages : en
Pages : 836
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Book Description
This book is the outcome of a major international conference on waterbirds held in Edinburgh in April 2004.
Author: Henrik Skov
Publisher: Nordic Council of Ministers
ISBN: 9289322497
Category : Science
Languages : en
Pages : 203
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Book Description
This report outlines the results of the internationally coordinated census of wintering waterbirds in the Baltic Sea 2007-2009 undertaken under the SOWBAS project (Status of wintering Waterbird populations in the Baltic Sea). The estimated total number of wintering waterbirds was 4.41 million compared to 7.44 million during the last co-ordinated census 1992-1993. Despite the general declines stable or increasing populations of herbivorous species were recorded. While benthic carnivores with a coastal distribution have either shown moderate declines, stable or increasing populations seaducks with an offshore distribution have declined seriously. Based on analyses of trends in wintering waterbirds and pressures indicators are suggested as performance indicators in relation to the international and national actions taken to reduce the anthropogenic pressures in the Baltic Sea.
Author: P. M. Rose
Publisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 114
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Book Description
Author: Derek A. Scott
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 532
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Book Description
This publication is a compilation of current knowledge of the numbers, distribution and movements of one of the most remarkable groups of birds in the region covered by the African-Eurasian Migratory Waterbird Agreement (AEWA). Long-term waterbird count data have been combined with an extensive literature review, especially published results of bird ringing and national bird atlases, to produce maps showing the population boundaries that are used as a basis of the conservation of these species. The maps are supported by informative species accounts that highlight the movements, population status and conservation of waders in the AEWA region.
Author: Herbert H. T. Prins
Publisher: Cambridge University Press
ISBN: 1107114713
Category : Nature
Languages : en
Pages : 491
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Book Description
The first reference to demonstrate how birds survive the high-altitude Central Asian Flyway and the threats to this unique migration.
Author: James Anthony Kushlan
Publisher: Helm
ISBN:
Category : Juvenile Nonfiction
Languages : en
Pages : 504
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Book Description
Heron Conservation provides a comprehensive update following two distinct threads. The status and conservation needs of herons are first presented on a regional basis, in a series of chapters set at continental or subcontinental scale. Over 200 biologists and heron conservationists - many associated with the Heron Specialist Group sponsored by Wetlands International and IUCN - have contributed to the data summarised here and these very latest census and survey results provide the most up to date and detailed picture of heron populations currently available. Chapters discussing several critical issues in heron conservation follow, often focusing on the international nature of the problem. Many heron populations are migratory and depend upon conservation of both summer and wintering wetland habitats often located on different continents. Effective conservation of these wetlands of international importance depends in large part on local and regional socio-economic factors. Herons, to the extent that they require maintenance of wetland functioning, should be an integral part of sustainable wetland conservation. Features: * Fascinating insight into a topical issue * Beautiful colour pho
Author: Olivia Crowe
Publisher:
ISBN: 9781899204175
Category : Birds
Languages : en
Pages : 402
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Book Description
