Inventory of Invertebrates on Pear Crop (‘Pyrus communis’) in Makouda area (Tizi-Ouzou), Algeria

The inventory of invertebrates on pear cultivation using 2 methods of sampling, Barber traps and colored traps in Makouda region (Tizi-Ouzou) Algeria, allowed us to collect 77 species divided into 59 families, belonging to 18 orders and 5 classes. The values of the centesimal frequencies applied to invertebrates 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 8 large groups among the 77 insect species selected. Shannon-Weaver diversity index values are quite high in the study plot, it is H ’= 4.80 bits for Barber traps, H’ = 4.59 bits for colored traps, H’ = 4.83 bits for sweep net and H’ = 2.64 bits for butterfly net. The fairness obtained for each type of trap varies from E = 0.87 to E = 0.94, these values tend towards 1, which reflects a balance between the species in the environment. How to cite this article: Guermah D, Medjdoub-Bensaad F and Lakabi L. (2022). Inventory of Invertebrates on Pear Crop (‘Pyrus communis’) in Makouda area (Tizi-Ouzou), Algeria. Bulletin of Pure and Applied Sciences-Botany, 41B(1), 1-14. Keywords Inventory, invertebrates, Pear, Makouda, Algeria.