Quantifying the diversity of macromoth in Loagan Bunut National Park
2006
C.J. Laman | F. Abang | P. Meleng | J. Ngumbang
The study of macromoth diversity was undertaken from 28 March to 11 Apri, 2004 at Loagan Bunut National Park (LBNP). Two sites were selected, site 1 in the peat swamp forest (PSF), and site 2 in a mixed swamp forest (MSF). Modified Pennsylvanian light traps were employed for a total effort of 16 trap nights. A total of 1156 individuals, comprising of 231 species from 10 families of macromoths was collected from LBNP. Simpson`s index (using its inverse function) showed a high index of almost 1.0 depicting a high diversity measure and indicating that the common species are very much abundant. The Shannon-Weiner index (H`, using its exponential function) and the Brillouin`s index (H both have indices more than 6.0 indicating a high diversity measure but a lack of emphasis on the rare species. Test of significant difference using Zar`s (1996) modified t-test indicate the expected hyphotesis of a very significant difference between the PSF site and MSF site. Results also indicate that Noctuidae and Geometridae are predominant in LBNP, which are among the most diverse families of moths in Borneo. However, Cossidae and Saturniidae have the least number of species and individuals sampled from the study. About a quarter of all species sampled are singletons. The most abundant species collected was Leucoma impressa (family Lymantridae).
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