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|Title:||Effects of land-use change on community composition of tropical amphibians and reptiles in Sulawesi, Indonesia|
|Citation:||Conservation Biology, 2010; 24(3):795-802|
|Publisher:||Blackwell Publishing Inc|
|Thomas C. Wanger, Djoko T. Iskandar, Iris Motzke, Barry W. Brook, Navjot S. Sodhi, Yann Clough, and Teja Tscharntke|
|Abstract:||Little is known about the effects of anthropogenic land-use change on the amphibians and reptiles of the biodiverse tropical forests of Southeast Asia. We studied a land-use modification gradient stretching from primary forest, secondary forest, natural-shade cacao agroforest, planted-shade cacao agroforest to open areas in central Sulawesi, Indonesia. We determined species richness, abundance, turnover, and community composition in all habitat types and related these to environmental correlates, such as canopy heterogeneity and thickness of leaf litter. Amphibian species richness decreased systematically along the land-use modification gradient, but reptile richness and abundance peaked in natural-shade cacao agroforests. Species richness and abundance patterns across the disturbance gradient were best explained by canopy cover and leaf-litter thickness in amphibians and by canopy heterogeneity and cover in reptiles. Amphibians were more severely affected by forest disturbance in Sulawesi than reptiles. Heterogeneous canopy cover and thick leaf litter should be maintained in cacao plantations to facilitate the conservation value for both groups. For long-term and sustainable use of plantations, pruned shade trees should be permanently kept to allow rejuvenation of cacao and, thus, to prevent repeated forest encroachment.|
|Keywords:||Amphibians; Bayesian modelling; cacao agroforestry; Indonesia; land-use change; reptiles; Southeast Asia|
|Rights:||Copyright 2010 Society for Conservation Biology|
|Appears in Collections:||Earth and Environmental Sciences publications|
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