Chronosequential changes in species richness of forest-edge-dwelling butterflies during forest restoration after swidden cultivation in a humid tropical rainforest region in Borneo
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Published source details
Itioka T., Takano K.T., Kishimoto-Yamada K., Tzuchiya T., Ohshima Y., Katsuyama R., Yago M., Yata O., Nakagawa M. & Nakashizuka T. (2015) Chronosequential changes in species richness of forest-edge-dwelling butterflies during forest restoration after swidden cultivation in a humid tropical rainforest region in Borneo. Journal of Forest Research, 20, 125-134.
Published source details Itioka T., Takano K.T., Kishimoto-Yamada K., Tzuchiya T., Ohshima Y., Katsuyama R., Yago M., Yata O., Nakagawa M. & Nakashizuka T. (2015) Chronosequential changes in species richness of forest-edge-dwelling butterflies during forest restoration after swidden cultivation in a humid tropical rainforest region in Borneo. Journal of Forest Research, 20, 125-134.
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This study is summarised as evidence for the following.
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Restore or create forest or woodland Action Link |
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Restore or create forest or woodland
A replicated, site comparison study in 2003–2006 around a tropical rainforest reserve in Sarawak, Malaysia (Itioka et al. 2015) found that butterfly species richness was higher in older forest regeneration plots than in newly regenerating plots, but that regenerating areas had lower species richness than primary forest. Butterfly species richness was higher at sites which had been regenerating naturally for >5 years (5–13 years: 10–18 species; 20–60 years: 12–22 species) than at newly regenerating sites (<3 years: 6–7 species). However, species richness in all regenerating sites was lower than in isolated (20–40 species) or intact (48–66 species) primary rainforest. In August 2003, twenty-one open plots (two × 100 m2 each) on the edge of five types of forest stand (2,772–4,917 m2) were selected. Six plots were next to old regenerating forest, where 20–60 years had passed since the land was last cultivated; three were next to young regenerating forest where 5–13 years had passed since cultivation; three were next to newly regenerating forest where one year had passed since cultivation; six were next to isolated primary forest stands, and three were next to intact primary forest. Butterflies were surveyed twice/plot in August 2003, September 2003, January 2005 and June 2006.
(Summarised by: Andrew Bladon)
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