Diversity of Soil Arthropods in Different Soil Stratification Layers, the National Park of Gede Pangrango Mountain, Cisarua Resort, West Java, Indonesia

Abstract

Soil arthropods has an important role for guarding food web sustainability, so its diversity value usually exert a strong influence on the ecosystem balance. Understanding arthropods soil diversity become important in maintaining soil quality. This research aims to analyze arthropods diversity in different top soil level around mount Pangrango National Park, Cisarua Resort Bogor, West Java. Sample were collected by monolith (25cm x 25cm x10cm). Devided into 3 layers (A: 10-20 cm, B: 20-30 cm, and C: 30-40 cm) and collected from agriculture field, riverside area, primary forest, and secondery forest. A total 143 individualswere found consisting of 8 order and 19 family (Staphylinidae, Carabidae, Scarabaedae, Alycidae, Formicidae, Polydesmidae, Parasitidae, tenebrionidae, Scolytidae, Curculionidae, Ptiliidae, Scydmaenidae, Alycidae, Miridae, Antrodiaetidae, Arachnidae and Drosipilidae), Formicidae and Staphylinidae are dominant with respectively 58,7% and 18,9%. Various result in diversity, richness, eveness and dominance were showed in different vertical soil level. The highest Arthropods diversity index (1,49) found at riverside in the soil layer A. Diversity index on top soil level A (0-10 cm) all showed moderate level, B level (10-20 cm) showed two moderate and two low, C level (20-30 cm) showed one moderate and 3 low. Therefore, increasing soil depth showed increasing low level of arthropods diversity index.