Effects of Shifting Cultivation on Understorey Rainforest Butterflies of Sarawak, Borneo.
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THE SARAWAK MUSEUM JOURNAL |
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Title :
Effects of Shifting Cultivation on Understorey Rainforest Butterflies of Sarawak, Borneo. |
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Author :
Ben H. Warren, David C. Dale, Thomas R.K. Edwards and Patrick B. Hamilton |
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Abstract:
The effects of shifting cultivation on an understorey butterfly community in Sarawak, Borneo,were assessed by comparing the species composition of primary forest with areas subjected to shifting cultivation at various known times in the past. Species richness projected to 50 hours of sampling effort is highest in primary forest, lowest in young secondary forest of 15-24 years since cultivation, while old secondary forest cultivated 100 or more years ago has intermediate values. Butterflies in most groups analysed are more abundant in primary forest than secondary forest, although a few groups show the opposite trend. When comparing the biogeographic ranges of species, the proportion of species restricted to primary and old secondary forest is highest amongst species with a high level of endemism, while species found in young secondary forest tend to have larger ranges. While primary forest appears to have the highest conservation value for butterflies, old secondary forest is also important. Conservation implications and the need for further work are discussed.
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| DOI: XXXX |
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How to cite:
Ben H. Warren et al. (2001). Effects of Shifting Cultivation on Understorey Rainforest Butterflies of Sarawak, Borneo. The Sarawak Museum Journal, LVI (77) : 305-330 |
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References
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