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Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	Aspects of habitat selection of White-headed Duck Oxyura leucocephala in lake Tonga (North-Eastern Algeria) (2017)
Auteurs :	B Menasria, Auteur ; Amel LAZLI, Auteur
Type de document :	Article
Dans :	Alauda (85(1) janvier 1, 2017)
Article en page(s) :	283-294
Mots-clés :	Algérie
Résumé :	Understanding habitat requirements is vital for developing successful management strategies for threatened species. In this study, we analysed the habitat selection of a globally threatened waterbird, the White-headed Duck Oxyura leucocephala, in an internationally important wetland, Lake Tonga (North-Eastern Algeria). Little is known about how environmental variables affect White-headed Ducks distribution, so information is required to protect their wintering and breeding areas. We surveyed adults and broods of these species fortnightly during three consecutive years. These birds were selective regarding the conditions of Lake Tonga, having different habitat requirements throughout of their annual cycle. White-headed Ducks adults selected open water in winter. In breeding season broods were found in deeper areas and associated mainly with Phragmites australis, Salix pedicellata, Scirpus lacustris and Typha spp. This study attempts to provide original and new data on habitat selection of an endangered species which remain very poorly studied in North Africa and, particularly, in Algeria. Such knowledge may provide vital information for the development of appropriate species management and conservation strategies and offer tools in priority-setting tasks for action plans.

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