Ecological study of four populations acridians (Insecta Orthiptera) areaof El-aouana (Jijel-Algeria)

Abstract

The study focuses on Acridoidea Orthoptera recorded in four stations represented in one of the largest sites of the Algerian EL-AOUANA (JIJEL) coastline. The work carried out by sampling from May to December 2006 showed the presence of 22 species in 10 families. The similarity and distance matrices indicate that station fact sheet (S1) is almost similar with the (S3) fallow and cultivated environment (S4) .about the basis of ranks frequencies, the vegetation distribution diagrams shows the existence of four groups of locust corresponding to the 4 studied stations. The analysis of the levels for the resulting integration of the classification of the stations shows that can hold two separate groups of stations.