Habitat selection and diversity of ground beetles (Carabidae) in Ahır Mountain (Kahramanmaraş, Turkey), in Mediterranean RegionAbstract : This study was carried out on Ahır Mountain (Kahraman Maraş, Turkey), in the Mediterranean Region between April and October of 2004 and 2005. In this region, there is not any work about ground beetles (Coleoptera, Carabidae) so far. A total of 24 ground beetles species were recorded in the pitfall traps. Among them, Calathus (Calathus) libanensis pluriseriatus Putzeys, 1873 and Calathus (Calathus) syriacus Chaudoir, 1863 were the most abundant species. Separately, habitat selection (grassland, forest edge and forest interior) of all species, diversity, monthly distribution and chorotypes, ecology of these species are given in this study. It was recorded that the diversity of ground beetles was significantly higher in the forest edge and grassland than in the forest interior. There was no significant difference in the diversity of ground beetles of the grassland and the forest edge in Ahır Mountain.