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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Conservation uses of ringing data: Flyway networks for waterbirds
Auteurs :	Nick Davidson, Auteur ; David Bryant, Auteur ; Gerard Boere, Auteur
Type de document :	Article
Dans :	Ringing & Migration (19(Suppl.) Nov., 1999)
Article en page(s) :	S83-S94
Résumé :	Migratory waterbirds have long been a major focus of research and conservation interest, for their spectacular migrations and because many are, or have been, quarry species. A good understanding of how waterbirds use the networks of sites on their flyways is essential for developing sustainable management of populations and to meet obligations under inter-governmental commitments, notably the Ramsar and Bonn Conventions, the Convention on Biological Diversity (CBD) and, in Europe, the EC Birds and Habitats Directives. The results of catching and ringing waterbirds continue to provide a major source of understanding of their distribution and movements - the essential basis for implementing flyway conservation. There is a wealth of ringing information and much has been analysed to yield insights into waterbird flyways. However, to set future priorities for action there us an urgent need to undertake (for all waterbird taxa) reviews of existing knowledge and currently available data and information, and to assess what information is needed to define population units, site networks and functional uses of the networks (adequately). Only then can a soundly-based strategy for future data collection and analysis for flyway conservation be developed. The paper reviews current uses of catching and ringing data in assessing flyway structure, movements of flyway populations, monitoring demographic parameters, establishing links between important sites and assessing population turnover;, and the use of new technologies (notably remote-sensing) and targeted gap-filling research to expand the knowledge base. Specific recommendations are made for priority action on each topic. To maximise the efficiency of delivering these recommendations it is essential to ensure full use of the large amounts of existing data, notably by making these national and international datasets much more freely available to the research and conservation community. Without this, ringing schemes and other ringing data custodians are failing to ensure that the huge, often volunteer, ringing effort is used to appropriate benefit.

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