Malaysian Applied Biology Journal

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Malays. Appt. Biol. (December 2004) 33(2): 7-17




1School of Environmental Sciences & Natural Resource Studies,

Faculty of Science and Technology,

Universiti Kebangsaan Malaysia, 43600, Bangi

Selangor Darul Ehsan, Malaysia.

2Institute for Environment and Development (LESTARI),

Universiti Kebangsaan Malaysia, 43600, Bangi,

Selangor Darul Ehsan, Malaysia.


Species diversity and abundance of mammalian species were estimated in the fragmented peat swamp forest of the Kuala Langat South Forest Reserve, in the Langat Basin, Malaysia. Using the line transect method a total of 565 individuals was recorded from four orders, six families, 10 genera, and 12 species. The overall Shannon Diversity Index value of H' = 1.45 means that the diversity of mammalian species in the study area was low, due to low evenness of the assemblage (E = 0.58). The most diverse mammalian assemblage according to H' value was in C29 (1.72 ± 0.07), followed by C26 (1.43 ± 0.08) and C24 (1.06 ± 0.08) and C33 (1.06 ± 0.12). The mammal assemblages were closest between C24 and C26, indicated by the Jaccard's coefficient similarity index of about 70%. Long-tailed macaque is the most common primate in the study area, with an encounter rate of 1.23 ± 0.34 sightings/km, compared to 0.71 ± 0.39 sightings/km for Hylobates lar. The relative density or the encounter rates of these two species oi primates were comparatively high with other studies. The high estimate obtained for Macacafascicularis in this study was most probably due to food supply, which was abundant from the forests, and especially from the surrounding orchards, oil palm and rubber plantations. This study showed that the mammalian assemblage in the fragmented peat swamp forest tended to be dominated by common, widely distributed forest species, and forest edge species, such as Macacafascicularis, Sundasciurus tenuis, and Callosciurus notatus. The low occurrence of forest dependent species and dominance of generalist species indicate that the forest reserve is degraded, but due to the other food supply from the surrounding oil palm and rubber plantations, many species can persist, and even flourish here.


Kepelbagaian dan kelimpahan spesies mamalia dianggarkan di hutan paya gambut Hutan Simpan Kuala Langat Selatan, di Lembangan Langat, Selangor, Malaysia. Dengan kaedah pensampelan jarak, sebanyak 569 individu haiwan telah direkodkan yang tergolong dalam empat Order, enam Famili, 10 genera dan 12 spesies. Indek Kepelbagaian Spesies Shannon, H'=1.45 menunjukkan yang kepelbagaian mamalia di kawasan kajian adalah rendah kerana Indek Kesamarataannya rendah (E=0.58). Kepelbagaian yang paling tinggi antara kompatmen ditunjukkan oleh C29 (1.72 ± 0.07), diikuti oleh C26 (1.43 ± 0.08), C24 (1.06 ± 0.08) dan C33 (1.06 ± 0.12). Himpunan mamalia yang paling sama ialah di antara C24 dan C26, atas dasar nilai koefisien Jaccard yang tinggi (70%). Kera ialah spesies primal yang paling melimpah di kawasan kajian, dengan kadar penemuan 1.23 ± 0.34 penemuan/km, berbanding 0.71 ± 0.39 penemuan/km untuk Hylobates lar. Anggaran kepadatan individu kera ialah 214 ± 81 individu /km2. Anggaran kepadatan individu H. lar pula ialah 19.56 ± 6.06 individu/km2 atau 11.36 ± 3.79 groups/km2. Kepadatan relatif atau kadar penemuan kedua-dua spesies primat ini adalah tinggi seperti yang pernah dilaporkan oleh kajian lain. Anggaran yang tinggi untuk M. fascicularis dalam kajian ini besar kemungkinan disebabkan oleh bekalan makanan yang banyak dari hutan dan terutama sekali dari ladang kelapa sawit dan getah di sekelilingnya. Kajian ini juga menunjukkan bahawa himpunan mamalia di hutan paya gambut yang tersisih ini didominasikan oleh spesies umum yang mempunyai taburan yang luas dan spesies pinggir hutan seperti Macacafascicularis, Sundasciurus tenuis, dan

To whom corresoondence should be addressed.


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