The role of forest fragments in small mammal conservation in an oil palm plantation in Northern Sarawak Borneo

Mohd Azlan Jayasilan, . and Soo Sally Kaicheen, . and Lok Lisa, . and Lawes Michael J., . The role of forest fragments in small mammal conservation in an oil palm plantation in Northern Sarawak Borneo. pp. 422-436. ISSN 1511-2780

In recent decades vast areas of Bornean rainforest have been converted to monocultures particularly to oil palm. This study describes and compares the diversity and persistence of small mammal species in fragmented forests within an oil palm plantation. Small mammals were trapped over 44 sampling days using mist-nets harp traps and cage traps. A total of 39 species of small mammals were trapped represented by 22 volant (bats) and 17 non-volant species. These species were represented by 29 15 and 26 species and controlling for sampling effort by rarefaction 19 15 and 14 species of small mammals in high conservation value (HCV) forests forest edge and in oil palm plantation respectively. Species diversity was greatest in the HCV forests (H 2.22) followed by oil palm plantation (H 1.11) and then edge (H 1.07). The smaller HCV forest (116 ha vs. 990 ha) contained more species than the larger forest (25 vs. 17 species). We attribute this to differences in species relaxation rates and the possibility that species density compensation has occurred in the smaller forest. This study demonstrates the conservation value of small forest fragments in oil palm plantations to maintaining native species diversity and the ecosystem services they provide.

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Abstract

In recent decades vast areas of Bornean rainforest have been converted to monocultures particularly to oil palm. This study describes and compares the diversity and persistence of small mammal species in fragmented forests within an oil palm plantation. Small mammals were trapped over 44 sampling days using mist-nets harp traps and cage traps. A total of 39 species of small mammals were trapped represented by 22 volant (bats) and 17 non-volant species. These species were represented by 29 15 and 26 species and controlling for sampling effort by rarefaction 19 15 and 14 species of small mammals in high conservation value (HCV) forests forest edge and in oil palm plantation respectively. Species diversity was greatest in the HCV forests (H 2.22) followed by oil palm plantation (H 1.11) and then edge (H 1.07). The smaller HCV forest (116 ha vs. 990 ha) contained more species than the larger forest (25 vs. 17 species). We attribute this to differences in species relaxation rates and the possibility that species density compensation has occurred in the smaller forest. This study demonstrates the conservation value of small forest fragments in oil palm plantations to maintaining native species diversity and the ecosystem services they provide.

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Item Type:	Article
AGROVOC Term:	Elaeis guineensis
AGROVOC Term:	Oil palm
AGROVOC Term:	Plantations
AGROVOC Term:	Monoculture
AGROVOC Term:	Wildlife conservation
AGROVOC Term:	Biological diversity conservation
AGROVOC Term:	Mammals
AGROVOC Term:	Species diversity
AGROVOC Term:	Bats
AGROVOC Term:	Habitats
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8679

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