Composición de carábidos del suelo (Coleoptera: Carabidae) en plantaciones forestales y ecosistemas de la Orinoquía colombiana

Abstract

Composition of the ground and tiger beetle was studied on forest plantation Eucalyptus pellita and Pinus caribaea related with reference ecosystems of pastures and gallery forest. The study was located in the region of Villanueva, Casanare in Colombia on the company Refocosta. The sampling was made along transects methodology using pitfall traps, likewise environment and dasometric variables was measurement, like percentage of light, accumulation of leaf litter, soil moisture, soil PH, soil organic carbon and total nitrogen, likewise diameter at breast height (DBH) and total height of tree; (basal area), taken in different contrast wet season and transition wet-dry season. Found it, 32 species of ground beetles partitioning in 6 subfamilies (Cicindelinae, Dryptinae, Harpalinae, Lebiinae, Psydrinae, Scaritinae). Wet season gave out 92.3% and dry season 7.7% abundance of ground beetle, meanwhile, the richness was represented 96.9% wet and 46.9% dry seasons. Composition of species was surely high on forest plantations compared to reference ecosystems, particularly forest of gallery. According to diet the group of depredator showed it out dominant (Cicindelinae). Final conclusion identified association’s level of basal area, accumulation of leaf litter and soil moisture variables related with composition of sampling ground and tiger beetles