New waterbird population trends for the Wadden Sea
Bonn,
12 February 2009 - The Common Wadden Sea Secretariat
has published new population trends of 34 waterbird species
that occur in the international Wadden Sea area. The main
outcome of the recently completed assessment is that the
population trends of one third of all counted waterbird
species has decreased in the last 20 years. Wadden Sea species, that are showing significant decreasing populations trends are the Eurasian Oystercatcher (Haematopus ostralegus), the Ruff (Philomachus pugnax), the Herring Gull (Larus argentatus) and the Kentish Plover (Charadrius alexandrinus).
Fortunately, a third of waterbird species are also showing increasing population trends, such as the Sanderling (Calidris alba), the Northern Pintail (Anas acuta), the Grey Plover (Pluvialis squatarola) and the Eurasian Spoonbill (Platalea leucorodia).
It is still unclear, whether the population declines are caused by factors within the area of the International Wadden Sea or whether other areas and factors outside this area should also be considered, for example in breeding areas or along the flyways of these birds.
The new population counts are the result of the Trilateral Monitoring and Assessment Programme (TMAP) that includes the Joint Monitoring of Migratory Birds (JMMB) programme. The JMMP is conducted by the Common Wadden Sea Secretariat and is an important internationally coordinated and long-term monitoring programme, which has taken place regularly for the past 20 years.
The Wadden Sea is one of the world’s most important wetlands for migratory waterbirds and covers an area of over 14.000 square kilometres, which is shared by The Netherlands, Denmark and Germany. The Wadden Sea provides the single most important staging and moulting area for waterbirds on the East Atlantic Flyway, as well as being an important wintering area.
For more information please visit:
www.waddensea-secretariat.org