Guermah D., Lembrouk L., Medjdoub-Bensaad F. 2026. Trophic behaviour and entomofaunistic interactions in a pear tree agro-ecosystem in Freha region, Algeria // Euroasian Entomological Journal. Vol.25. No.2: 61–68 [in English].
Laboratoire de production, amélioration et protect ion des végétaux et des denrées alimentaires, Faculté des Sciences Biologiques et des Sciences Agronomiques, Université Mouloud Mammeri, Tizi-Ouzou, BP 17 RP 15000 Algèrie. E-mail: guermah.dyhia.d@gmail.com
doi 10.15298/euroasentj.25.02.01
ABSTRACT. Insects interact with each other and their living environments; these interactions highlight the various trophic behaviors in a given environment. In our study, we investigated insect behavior and interactions by carrying out an inventory of the species present in pear tree cultivation in the Freha region of Tizi Ouzou in Algeria, in order to classify them according to the trophic groups to which they belong. We used two trapping methods namely pitfall and colored aerial traps; These allowed us to collect 41 species divided into 29 families, belonging to 9 orders of insects. We were able to identify 11 trophic groups according to the species of insects collected, namely predators, phytophages, flower pollinators, parasitoids, hematophages, omnivores, saprophages, coprophages, xylophages, necrophages, and granivores; thus forming a diversified trophic network.
KEY WORDS: Inventory, insect, trophic group, Freha, pear tree.