Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/101429
Title: Population assessment methods for the sunda colugo Galeopterus variegatus (Mammalia: Dermoptera) in tropical forests and their viability in Singapore
Authors: Lim, N.T.-L. 
Ng, P.K.L. 
Keywords: Conservation
Distance-sampling
Fixed-width transect
Flying lemur
Population estimate
Issue Date: Feb-2010
Citation: Lim, N.T.-L.,Ng, P.K.L. (2010-02). Population assessment methods for the sunda colugo Galeopterus variegatus (Mammalia: Dermoptera) in tropical forests and their viability in Singapore. Raffles Bulletin of Zoology 58 (1) : 157-164. ScholarBank@NUS Repository.
Abstract: Colugos are arboreal folivores and are found in tropical rainforests of Southeast Asia. Despite their discovery roughly 200 years ago, colugos attracted relatively little scientific attention. Given the importance of population estimates in conservation decision-making, it is surprising that no colugo has been surveyed in tropical forest habitats. In this study, we assessed the possibility of using distancesampling for estimating population size of Sunda Colugo (Galeopterus variegatus) in the protected forests of Singapore, and also compared this method with estimates from fixed-width strip transect. We found that key assumptions of distance-sampling were not violated and the method provided relatively more precise estimates than fixed-width strip transect. The population density estimate obtained was 0.535 (± 0.104) individuals per ha, and this translates to an estimated 1,074 ± 209 individuals within the 2,007 ha of protected forests in Singapore. We recommend the use of distance-sampling for the long-term monitoring of colugo populations and also discuss the viability of the species in Singapore. © National University of Singapore.
Source Title: Raffles Bulletin of Zoology
URI: http://scholarbank.nus.edu.sg/handle/10635/101429
ISSN: 02172445
Appears in Collections:Staff Publications

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