Estudio de los escarabajos como indicadores de la diversidad biológica en el Bosque los Encinos-Parroquia Chitan de Navarretes-Cantón Montufar- Provincia de Carchi

Abstract

The study of scarabs like indicators of biological diversity were made in the protective forest the Encinos, located in the Parish Chitan of Navarretes-canton Montufar-Carchi, during the months of February to July of the 2013, in two types of forest remainder: non managed forest (BNI) and managed forest (BI), which differ for their vegetable covering. For the capture traps type pit-fall were used, with an attractive one or bait of pig grounds, in a lapse of six monthly monitoring’s. 426 individuals were captured that contain to 5 families and 10 species. The most abundant species corresponds to a carábido species Sp3 with 203 individuals for both sampling places and the less abundant ones are Golofa sp1, and Phyllophaga sp2, with a single individual in a sampling place. Of the family Scarabaeidae was carried out the capture of 4 species where of the species Uroxys aff. rugatus, you captures a total of 69 individuals, corresponding 13.52% for Non Managed Forest (BNI) and 17.14% for Managed Forest (BI). The curves of accumulation of species so much for BNI and BI they reached the asíntota, for what the effort of applied sampling was correct. The index of diversity of Simpson in the BNI (0, 5159) he/she went smaller to the BI (0, 6598). The range of abundance for Non Managed Forest indicates us that it is distributed in an equal way. Contrary to Managed Forest that denotes dominance, on the part of two carábidos species. As for the relationship that exists between the factors abiotic and the two forest types, it is demonstrated that the environmental variables didn't exercise bigger pressure on the community.