MHAMEDI, Zohra2023-10-012023-10-012023https://dspace.univ-ghardaia.edu.dz/xmlui/handle/123456789/6438Our work presents a preliminary study of ant populations in three ecosystems in the Daya ben Dahoua region (Ghardaïa). The four months of 2023 . Using pot-barber sampling methods, we obtained the following results: The species inventoried all belong to a single Formicidae family and three subfamilies, including: Fourmicinés: Camponots thoracicus, Myrmicinés: Messor aegyptiacus ,and Pheidole palludial . Finally, the Dolichoderinés subfamily comprises a single genus and two species: Tapinoma nigerrimum and Tapinoma sp. Analysis of the results obtained using Shannon-Weaver indices has enabled us to conclude that specific diversity is greater in April and March.frants, diversity, Daya Bendahoua, Ghardaïa.fourmis,diversité, Daya Bendahoua , Ghardaïa