Abstract
Termites are major decomposers in tropical regions and play an important role in soil processes. This study investigated the termite assemblage structure across a sequence of differing land-use systems. With a standardized method, data were collected on termites from the following habitats: semi-deciduous forest, teak plantation, cocoa plantation, Jatropha plantation, food crop field and 4-years old fallow. Termite species richness declined from the semi-deciduous forest to 4-years old fallow through teak plantation, food crop field, cocoa plantation and Jatropha plantation. The relative abundance of fungus-growers was the highest in all land-use types while that of soil-feeders steeply declined in all man-modified sites. The wood-feeding species showed clear responses to disturbance, with low abundances in monospecific- and modified sites without high trees. Comparisons with other studies suggest that changes in the termite assemblage structure result from forest conversion to agricultural systems. To help mitigate the loss of termites when forests are disturbed or cleared, we recommend to: (1) promote the association of cropping and silvicultural systems that reduces changes in microclimate and maintains the original termite assemblage with the associated ecosystem services; (2) leave dead wood on the ground after forest disturbance to accelerate the recovery of the termite assemblage; and (3) increase forest and silvicultural patch size and reduce length of forest edges to sustain the survival of forest-dependent species.
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