Diversidade de artrópodes associados à oliveira (Olea europaea L.), no Algarve

The main objective of this work was to study the abundance and diversity of arthropods associated with the olive tree ( Olea europaea L.), in southern Portugal (Algarve). The studies were carried out in two different olive orchards, one located in Olhao and the other in Loule, both under integrated mode of production. The sampling techniques used in the trials consisted of pitfall traps, yellow sticky traps with and without sexual pheromone, delta sticky pheromone traps and collection of plant materials (branches with leaves, flowers, and fruits). The results indicate that the arthropods associated with the olive tree ecosystem belong to the following classes: Arachnida (order: Araneae), Chilopoda, Entognatha (order: Collembola) and Insecta. For these groups, the class Insecta was the most representative (with 70% of all specimens), followed by Arachnida (20%), Entognatha (7%) and Chilopoda (3%). Regarding the most abundant class of arthropods (Insecta), the orders and families more abundant in the olive ecosystem were: Diptera (Syrphidae and Tephritidae), Coleoptera (Carabidae, Coccinelidae, Curculionidae and Staphylinidae), Hemiptera (Anthocoridae and Miridae), Homoptera (Coccidae and Psyllidae), Hymenoptera (Braconidae, Encyrtidae, Eulophidae, Formicidae and Trichogrammatidae), Lepidoptera (Yponomeutidae), Neuroptera, (Chrysopidae) and Thysanoptera (Phlaeothripidae).