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Title: Effects of habitat disturbance on mixed species bird flocks in a tropical sub-montane rainforest
Authors: Tien, M.L.
Soh, M.C.K. 
Sodhi, N. 
Lian, P.K.
Lim, S.L.-H.
Keywords: Conservation
Forest disturbance
Mixed species flocks
Southeast Asia
Issue Date: Mar-2005
Citation: Tien, M.L., Soh, M.C.K., Sodhi, N., Lian, P.K., Lim, S.L.-H. (2005-03). Effects of habitat disturbance on mixed species bird flocks in a tropical sub-montane rainforest. Biological Conservation 122 (2) : 193-204. ScholarBank@NUS Repository.
Abstract: Despite their vulnerability to forest disturbances in the Neotropics, the consequences of forest perturbation on mixed species flocks are poorly understood in the threatened Southeast Asian rainforests. We examined the effects of local-scale habitat disturbance on mixed species flocks along an escalating gradient of anthropogenic modification (i.e., forest interior, forest edge, and urban) in a sub-montane tropical rainforest in Peninsular Malaysia that is presently experiencing low intensity development. Mixed species flocks in the forest interior and forest edge habitats (9.3 ± 2.3 and 8.4 ± 2.3, respectively) had significantly higher number of species than those observed in the urban habitat (5.1 ± 1.7). Flock participation was influenced by environmental characteristics (e.g., canopy cover). Flocking species sensitive to habitat disturbance were likely to be from the Families Corvidae, Nectariniidae, and Sylviidae; had narrow to restricted altitudinal ranges; and were exclusively dependent on primary forest and understory microhabitats. We conclude that sub-montane mixed species flocks are affected by even small scale urbanization and that they, particularly with species richness as a parameter, can be used as effective ecological indicators. With the looming development pressure on the sub-montane/montane habitats in Peninsular Malaysia and the Southeast Asian region, urgent conservation actions are needed for the preservation of their biotas. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Biological Conservation
ISSN: 00063207
DOI: 10.1016/j.biocon.2004.07.005
Appears in Collections:Staff Publications

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