Diversity of Medium- to Large-Sized Ground-Dwelling Mammals and Terrestrial Birds in Sarawak
While Borneo is a global biodiversity hotspot, its species-rich natural rainforests have been degraded and deforested in the past few decades by unsustainable shifting agriculture, commercial logging and the rapid development of industrial tree and oil palm plantations. Populations of some wildlife species have decreased drastically due to landscape changes, while other species may be adapting to the new mosaic landscape. To understand the current condition of biodiversity distribution in a heterogeneous landscape, it is necessary to develop a sustainable plan for various land uses in order to maintain the rich biodiversity and preserve ecosystem services for local communities. Camera trap surveys for medium- to large-sized ground-dwelling mammals and terrestrial birds were conducted in lowland areas of Sarawak that were under different management regimes: logging concessions, land used for shifting agriculture and oil palm plantations. Using the mean trapping rate as an abundance index, the wildlife population in logging concessions seems to have recovered 4 years after harvesting. The composition of endangered or medium-sized species in secondary forests around villages in lowland areas is low, but this habitat still remains favourable for major game species for local communities.
KeywordsSarawak Biodiversity Ground-dwelling mammals Terrestrial birds Sustainable forest management Camera trap survey
This study was undertaken with the support of Zedtee Sdn Bhd who granted us permission to carry out research in the ASDU. In particular, we would like to thank Wong Ing Yung and the staff at the Anap-Muput Forest Management Unit for their kind assistance during the fieldwork. We also thank Abdul Aziz and George Mike of Keresa Plantations Sdn Bhd for permission and support that enabled us to complete this study. We also thank the villagers of Rumah Majang, Rumah Limai, Rumah Aying, Rumah Resa, Rumah Udau, Rumah Jusong and Rumah Mawang for their kind assistance in carrying out fieldwork. We are grateful to Hidemi Nagano of Kyoto University who helped with data entry. This research was approved by the Forest Department of Sarawak (NCCD.907.4.4 (Jld.7)-67) and financially supported by Grant-in-Aid for Scientific Research (S) 22221010 from the Japan Society for the Promotion of Science.
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