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Waterbird Populations and Pressures in the Baltic Sea
Andres Kuresoo
Nordiska Ministerrådet
Gennady Grishanov
Hans W. Nehls
Henrik Skov
Ib Krag Petersen
Jan Jacob Kieckbusch
Jan Kube
Jochen Bellebaum
Jan Durinck
Kjell Larsson
Leho Luigujoe
Leif Nilsson
Mindaugas Dagys
Martti Hario
Markku Mikkola Roos
Ramnas Žydelis
Stefan Garthe
Stefan Heinänen
Szymon Bzoma
Wodzimierz Meissner
出版
Nordic Council of Ministers
ISBN
9289330481
9789289330480
URL
http://books.google.com.hk/books?id=m5LjxgEACAAJ&hl=&source=gbs_api
註釋
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.