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| Title | Dung beetles (Coleoptera; Scarabaeoidea) diversity: indicator of animal diversity? | | Author | Nurhariyanto, Laxman Joshi and Endri Martini | | Year | 2008 | | Publisher | World Agroforestry Centre - ICRAF, SEA Regional Office | | City | Bogor, Indonesia | | Call Number | PO0134-08 |
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| Abstract: |
| Dung beetle is very useful bio-indicator for habitat change; they show different structure and community in different habitat types. The existence of big animals like mammals in the landscape also helps existence of dung beetles who feed on and use animal manure for breeding. The research study was intended to get a good estimate of the dung beetle population and their diversity in major land use systems in Bungo district in Jambi, Indonesia - young rubber plantations (monoculture like), old rubber plantation, logged-over forest and relatively intact forest. The study was carried out in 2005 and again in December 2007 with refined methodology. A total of over 6000 dung beetles were captured using 150 dung traps, set up along transects inside the forests and agroforests. These beetles were later identified in laboratory using beetle identification manual. The data was used to calculate the major biodiversity indicators such as the Shannon index, Shannon evenness and Simpson dominancy. The results indicate that an increased land use intensity decreased dung beetle abundance (total population) while the impact on species diversity is less. In undisturbed forests, species dominance (Simpson dominancy) was lowest but dung beetle species richness was highest. Beetle abundance was relatively high in old rubber agroforests indicating presence of higher diversity of animal species. Number of beetle species in young rubber plantations is close to that in disturbed forests, but has a lower abundance.
High dominance of dung beetles in disturbed forest and agroforests and low biodiversity indicate, perhaps to a fewer animal species that can tolerate human disturbance. |
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GRP 2: Maximizing on-farm productivity of trees and agroforestry systems
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