| Abstract: |
| The bat study was carried out in May-June 2005 and in December 2007 with an improved rapid approach. The survey was carried out to cover all 5 major land use systems in Bungo, Jambi in Indonesia - primary forest, disturbed or logged-over forest, old rubber agroforest, young rubber plantation and mixed garden. A standardized mist-netting was used to trap bats. Each land use system was sampled for 3 days using 4 mist-nets in the evening and at night. A total of 235 individual bats, consisting of 18 species from 5 families (Pteropodidae, Vespertilonidae, Emballonuridae, Hipposideridae and Rhinolophidae) were trapped and identified. Calculation results using the diversity index indicates that the highest diversity was in old rubber agroforests (H’ = 1.079) and the lowest was in young rubber and primary forest (H’ = 0.602). The highest dominancy was found in the young rubber plantations and primary forests (? = 0.25). Old rubber agroforest had the lowest dominancy (? = 0.083). Cynopterus brachyotis was the most dominant species in young rubber plantations. Bat species in primary forests were different from bats in other land use systems. Several species, e.g. Chironax melanochepalos, were found only in primary forests. The results of clustering analysis using MVSP 3.1 with ‘furthest neighbour’ and ‘Euclidean distance’ showed that bat habitat types can be divided into 3 main clusters - primary forest, old rubber agroforest and ‘non forest’ group that includes logged-over disturbed forest, young rubber plantation and mix gardens. From a ‘bat’ perspective, primary forest and ‘non forest’ group are distinctly different habitats; while old rubber agroforests have some similarity to primary forests. Old rubber agroforests may provide an alternative habitat for bats where primary forests are disappearing, except for some forest-specific bats. |
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