QUELQUES ASPECTS SUR L'AVIFAUNE DANS DEUX PALMERAIES DU SAHARA SEPTENTRIONAL (ALGERIE)

Abstract

The study of avian population in the two groves of Mekhadema and Hassi Ben Abdallah in the basin of Ouargla (Algeria), highlighted 43 species belonging to 23 families and 11 orders. The order Passeriformes is the most supplied with 24 species. Values of the total wealth of the birds recorded during the study period are 34 species in the station Mekhadema and 28 species in Hassi Ben Abdallah. The density of bird species varies from one station to another, between 0.5 and 44 couples in the station of Mekhadma and fluctuates between 0.5 and 42.5 couples in Hassi Ben Abdallah. The value of the diversity index of Shannon-Weaver applied to birds is 2.71 bits in the station of Mekhadma and 2.53 bits in the station of Hassi Ben Abdallah. The value of E is 0.58 in both stations.