La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Black tern Chlidonias niger conservation in the Netherlands - a review
Auteurs :	Jan van der Winden, Auteur
Type de document :	Article
Dans :	Vogelwelt (Die) (126(3) 2005)
Article en page(s) :	187-193
Résumé :	The Dutch Black Tern breeding population decline was more than 90% since 1950. This paper reviews the most important causes for decline in the Netherlands. These are deterioration of nesting substrate, increased human disturbance and related chick starvation as well as bad food availability or quality in many Dutch wetlands and agricultural areas. High mortality at migration or in wintering areas is unlikely to be a cause for the decline. The paper also reviews conservation efforts and failures. Conservation started with provision of rafts, which are partly successful and nowadays efforts are concentrated on diminishing disturbance and improving habitat quality. Successes of these programmes in agricultural areas are good.

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