Vol. 3, Issue 1, Part F (2017)

Abstract
Some ecosystems, hard to get access such as mountains areas and inselbergs which are particular ecological sites sometimes escape from degradation factors and thus represent the privileged shelter of some species of particular status. This research work deals with the influence of the altitude on the diversity of arborescent species of particular status in the district of Bangolo in the west of Côte d’Ivoire. The objective was to assess the impact of the altitude on the dividing up of arborescent species of particular status in the district of Bangolo. The inventory of the flora has been made thanks to the method of itinerant account and the one of squares of Gautier et al (1994). The inventory of thirty six (36) arborescent species of particular status has been made in those mountainous areas. Among those species 28 are vulnerable, two are at risk, 1 is endangered and 5 are threatened with extinction. This study shows that at altitude, the climate, the geomorphology and the pedology are some criteria of selection of species of particular status.