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Dung beetle assemblages at three zonation of Tasik Chini Biosphere Reserve, Pahang using several modified pitfall traps

G. ARUCHUNNAN, Y. F. NG, I. R. HAZMI, S. L. WEE

Abstract


The dung beetle assemblages in the core (CZ), buffer (BZ) and transition (TZ) zones at Tasik Chini Biosphere Reserve (TCBR) was studied for the first time with different types of modified pitfall trap. A total of 2387 individuals belonging to 7 tribes, 12 genera and 36 species was successfully collected using, baited pitfall trap (B), baited pitfall trap with light sources (BL), baited pitfall trap with 1 m fencing at each sided of the container (BF) and baited pitfall trap with 1 m fencing at each sided of the container and light sources (BLF). Significant differences in species richness (F = 19.36; df = 2, 35; P < 0.05) and abundance (F = 27.59; df = 2, 35; P < 0.05) were found between the three different zones. This indicates that the land use intensity in TCBR had a negative effect and requires further research on focal taxon such as dung beetles to detect habitat changes for biodiversity conservation. Considering preference of method, no significant differences were found for both species richness and abundance. However, the catches of some species were affected by different trap designs. Three nocturnal species only collected in BL (Copris haroldi and Onthophagus sp. 1) and in BL and BLF (Aphodius sp.1). While smaller dung beetles Ochicanthon peninsularis and Onthophagus karenensis obtained only in BF and BLF. Therefore, the use of light and fences had a stronger effect on diversity and abundance of particular species of dung beetles in evaluating the status of a forest health

Keywords


Diversity, abundance, Scarabaeinae, pitfall traps, light, fencin

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