Etude des peuplements arthropodologiques inféodés au cèdre de l’Atlas (Cedrus atlantica Manetti) dans le parc national de Belezma (Batna, Algérie).

Abstract

This study aims to inventory the arthropod communities associated with Atlas cedar in Belezma National Park, located in the Batna region. Three sampling stations were selected, and the study was conducted between January 2017 and December 2018 using three sampling techniques: Barber traps, colored traps, and suspended traps. The inventory recorded 4,051 individuals, representing 116 species distributed across 65 families and 13 orders. Coleoptera were the most represented, accounting for 37.93% of the recorded species, followed by Hymenoptera (24.14%) and Diptera (16.38%). Insect diversity was assessed using various ecological indices, such as abundance frequency, constancy, trophic status, and diversity. Statistical analyses, including Correspondence Factor Analysis (CFA), were also performed. Phytophagous insects, representing 34.94% of the total diversity with 58 species, formed the most significant group. Predators constituted the second most abundant group, with 28 species and 16.86%. Other trophic categories showed lower proportions. The Shannon-Weaver diversity index (H’) was used to evaluate specific diversity at the different study stations, with values ranging from 4.97 to 5.15, indicating moderate to high diversity.