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Dynamique de la Forêt du Mont babor et préférences écologiques de la sittelle kabyle Sitta ledanti

par Ledant, Jean-Paul;Jacobs, Paul ;Ochando, Bernard;Renault, Jean
Référence Biological Conservation, 32, 3, page (231-254)
Publication Publié, 1985

Article révisé par les pairs

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Résumé :

The aim of this study was the conservation of the Kabylian nuthatch, a vulnerable bird endemic to the Babor forest (Algeria). In this habitat, six forest types were identified and their dynamics analysed. In each type, census of the Kabylian nuthatch was taken during May 1982, by sampling the lapse of time taken for the answer to the bird song emitted by a tape recorder. Two quadrant censuses were also made which allowed us to estimate the absolute density from the first sampling method. The total population is thought to be about 80 pairs. The density differences between forest types are ascribed to the diversity of the tree species, the mean basal area of trees and the varying climate due to altitude. The possible causes of a decrease in the diversity and in the mean basal area of trees are identified. Threats to the Kabylian nuthatch are described, together with the means of conservation. © 1985.