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Journal of Entomology

Year: 2010 | Volume: 7 | Issue: 1 | Page No.: 44-53
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Authors

F. Abdullah

K. Shamsulaman

Keywords

Research Article

Ground Beetle (Coleoptera: Carabidae) at Lanjak Entimau, Sarawak, Malaysia

F. Abdullah and K. Shamsulaman
A study was conducted on the abundance and diversity of ground beetles (Coleoptera: Carabidae) in Lanjak Entimau to determine whether the forests has been disturbed. The study was conducted from 16th to 29th June 2008 at five sites namely Kawi river, Transeks Menyaring 2, Satap river, Bergua and Joh river. All Carabid beetles were sampled using 20 light traps, 20 Malaise traps and 250 pitfall traps. From this study, 44 specimens comprising of 8 species were assembled. Carabids at Transeks Menyaring 2 was most abundant (Margalef index: 2.164) and most specious (Shannon Weaver index: 1.386) compared to other sites. New records of ground beetles for Lanjak Entimau, Sarawak, Malaysia are Abacetus chalcopterus Reiche, Abacetus sp., Dioryche torta Mcleay and Orthogonius sp. Four species were unidentified even to genus level and coded as Cara E, Cara F, Cara G and Cara H are possibly new species which will be described later in another report. This study shows that there is low abundance (Margalef index, 1.85) and low diversity (Shannon weaver index, 1.38) of ground beetles at Lanjak Entimau, Sarawak indicating that the area has been disturbed by activities of local ethnic people that depended on the forest for their subsistence. This study also shows that light traps assembled the most abundant and specious Carabid beetles (Margalef index: 2.056; Shannon Weaver index, 1.475).
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