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About the Workshop
On invitation of the
Nationalparkverwaltung (the Lower Saxony Wadden Sea National Park
Authority), the Institute of Avian Research and the Common Wadden Sea
Secretariat, leading experts from all Wadden Sea countries met at a
workshop in the Wattenmeerhaus on Thursday, 31 August 2006 in
Wilhelmshaven, the residence of all three organisations.
Since the beginning of the
eighties, water birds have been monitored in the entire Wadden Sea, in a
close spatial and temporal pattern, mostly by hundreds of voluntary
counters.Only this long-term and successful way of monitoring has
facilitated the identification of development trends.The evaluation of
the data gathered in the period from 1980 to 2000, in the framework of
the Trilateral Monitoring and Assessment Programme (TMAP) between
Denmark, Germany and The Netherlands, which has been coordinated by the
Common Wadden Sea Secretariat, had alerted the scientists and was the
cause for the workshop held in Wihelmshaven.
Of the 34 species, for which
the Wadden Sea is an essential stepping stone on their migration route,
15 species, i. e. 44% showed significant declining trends, whereas seven
another species did not show any significant declining trends.
After an analysis of the latest data, a slight relief of the situation
was observed according to Jan Blew from Hanover, on behalf of the
Joint Monitoring group for Migratory Birds in the Wadden Sea (JMMB).
However, negative trends are still observed for a few species, amongst
which are those feeding on mussels such as the oystercatcher. Looking at
longer periods of time series, all in all, negative trends have turned
out to be less pronounced. Thus the great significance of the
continuation of coordinated counting in the whole Wadden Sea area was
once again impressively underlined.
The speakers were:
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Jan Blew, Joint
Monitoring group for Migratory Birds in the Wadden Sea (JMMB),
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Christoph Zöckler from
the World Conservation Monitoring Center in Cambridge, UK,
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Prof. Dr. Franz Bairlein
from the Institute of Avian Research in Wilhelmshaven,
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Theunis Piersma,
University of Groningen, NL
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Jesper Madsen, National
Environmental Research Institute NERI, DK
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