Avifaune nicheuse dans les palmeraies d’Ouargla (Algérie)

The bioecology of the breeding birds of the basin of Ouargla is studied in 3 samples of palm-groves. Globally, 25 species were recored : 21 species in the abandoned palm-grove of El Ksar, 18 species in the traditional palm-grove of Mekhadma and 17 species in a modern palme-grove of the I.N.F.S.A.S. (Oaurgla). The results obtained by the method of the quadrats allowed to determine the total avian density: 77,3 pairs/10 ha at El Ksar, 88 pairs/10 ha at Mekhadma and 64 pairs/10 ha at the INFSAS. Passer domesticus was the commonest species in El Ksar (19,8 pairs/10 ha), Mekhadma (18,3 pairs/10 ha) and at the INFSAS (19 pairs/10 ha). Streptopelia senegalensis was the most abondant in El Ksar (20,8 pairs/10 ha), in Mekhadma (19,8 pairs/10 ha) and at the INFSAS (11,5 pairs/10 ha). And the method of the IPA gaved informations about the abundance of the avian species to the level of the 3 palm-groves. Highest IPA was obtained in July-August on the INFSAS with a value of 10,8 pairs of Passer domesticus. For S. senegalensis, the maximum IPA was noted in the abandoned palm-grove of El Ksar with 10,3 pairs.