Investigation of Invertebrates Presents on Oak Cork Crop (‘Quercus suber’) at Altitude (1300 m) in Bouzeguene Area (Tizi-Ouzou), Algeria

Abstract

The inventory of invertebrates on oak cork cultivation using 2 methods of sampling, Barber traps and colored traps in Bouzeguene region (Tizi-Ouzou) Algeria, allowed us to collect 35 species divided into 18 families, belonging to 6 orders. The values of the centesimal frequencies applied to invertebrate orders identified in the studied plot vary from one type of trapping to another, each sampling method relates to a representative order group. The diets of insects are extremely diverse, due to the structures and function of the mouth parts, the structural and functional division of the digestive tract. We have established a distribution according to the different trophic categories according to our personal observations and the bibliography consulted. We were able to distinguish 6 groups among the 35 insect species selected. Shannon-Weaver diversity index values are quite high in the study plot, the fairness obtained for each type of trap varies from E = 0.85 to E = 0.91. These values tend towards 1, which reflects a balance between the species in the environment.