Abstract
The ongoing loss of pristine tropical rainforests increases the potential importance of agroforestry systems for the conservation of tropical arthropod diversity. Shaded agroforestry systems can still support high levels of biodiversity, even resembling those supported by undisturbed forests, but intensively managed open agroforestry systems may cause severe losses in insect diversity. In this study we evaluate the conservation value of agroforestry systems for species richness and diversity (Simpson’s index) of four insect groups at natural forest sites and three different types of cacao-dominated agroforestry systems in Central Sulawesi, Indonesia. The agroforestry systems were characterised by low, intermediate and high diversity of shade trees. Each habitat type was studied with 4 replicates, i.e. 16 study sites altogether. We compared responses of solitary bees and wasps, dung beetles and lower canopy dwelling beetles and ants. These taxa represent diverse and functionally important insect groups: solitary bees and wasps act as crop pollinators or pest predators, dung beetles as decomposers of mammalian excrements and canopy dwelling beetles and ants include abundant herbivores and predators. High percentages of forest species did not occur in agroforestry systems, but diversity and species richness in agroforests remained as high as or even higher than in the forest lower canopy. Diversity, species richness and abundance of the functionally important dung beetles and canopy ants showed strong resilience against both forest conversion and changes in agroforestry management. Diversity, species richness and abundance of solitary bees and wasps as well as canopy beetles even seemed to profit from the effects of opening the upper canopy that was related to forest conversion and changes in shade tree compositions. On the latter two groups the effects of opening the upper canopy were stronger than effects of reduced shade tree richness. Based on our results, we recommend the inclusion of agroforestry systems with a diversity of shade trees in tropical conservation plans in addition to pristine forest reserves. Furthermore, regional differences in local agroforestry management contributed to between 31% (for dung beetles) and 58% (for canopy beetles) of the total species richness, which stresses the importance of conservation policies aimed at a diversity of habitat types on a broader landscape scale.
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References
Achard F, Eva HD, Stibig H-J, Mayaux P, Callego J, Richards T, Malingreau J-P (2002) Determination of deforestation rates of the world’s humid tropical forests. Science 297: 999–1002
Altieri MA (1999) The ecological role of biodiversity in agroecosystems. Agriculture, Ecosystems and Environment 74: 19–31
Belsky JM, Siebert SF (2003) Cultivating cacao: Implications of sun-grown cacao on local food security and environmental stability. Agriculture and Human Values 20: 270–285
Campbell CAM (1984) The influence of overhead shade and fertilizers on the Homoptera of mature Upper-Amazon cocoa trees in Ghana. Bulletin of Entomological Research 74: 163–174
Chung AYC, Eggleton P, Speight MR, Hammond PM, Chey VK (2000) The diversity of beetle assemblages in different habitat types in Sabah, Malaysia. Bulletin of Entomological Research 90: 475–496
Colwell RK (2004) EstimateS: Statistical estimation of species richness and shared species from samples. Version 7. User’s Guide and application. http://purl.oclc.org/estimates
Connell JH (1978) Diversity in tropical rainforests and coral reefs: high diversity of trees and corals is only maintained in a nonequilibrium state. Science 199: 1302–1309
Davies JG, Stork NE, Brendell MJD, Hine SJ (1997) Beetle species diversity and faunal similarity in Venezuelan rainforest tree canopies. In: Stork NE, Adis J, Didham RK (eds), Canopy Arthropods. London: Chapman & Hall, pp. 27–52
Davis AJ, Sutton SL (1998) The effects of rainforest canopy loss on arboreal dung beetles in Borneo: implications for the measurement of biodiversity in derived tropical ecosystems. Diversity and Distributions 4: 167–173
Donald PF (2004) Biodiversity impacts of some agricultural commodity production systems. Conservation Biology 18: 17–37
Entwistle PF (1972) Pests of Cocoa, Longman, London
Erwin TL (1982) Tropical forests: their richness in Coleoptera and other arthropod species. The Coleopterists Bulletin 36: 74–75
Fermon H, Waltert M, Mühlenberg M (2003) Movement and vertical stratification of fruit-feeding butterflies in a managed West African rainforest. Journal of Insect Conservation 7: 7–19
Foley JA, DeFries R, Asner GP, Barford C, Bonan G, Carpenter SR, Chapin FS, Coe MT, Daily GC, Gibbs HK, Helkowski JH, Holloway T, Howard EA, Kucharik CJ, Monfreda C, Patz JA, Prentice IC, Ramankutty N, Snyder PK (2005) Global consequences of land use. Science 309: 570–574
Free JB (1993) Insect pollination of crops, Academic Press, London
Gering JC, Crist TO (2002) The alpha-beta-regional relationship: providing new insights into local-regional patterns of species richness and scale dependance of diversity components. Ecology Letters 5: 433–444
Hanski I, Cambefort Y (1991) Dung Beetle Ecology, Princeton, Princeton University Press, New Jersey
Hoekstra JM, Boucher TM, Ricketts TH, Roberts C (2005) Confronting a biome crisis: global disparities of habitat loss and protection. Ecology Letters 8: 23–29
Hölldobler B, Wilson EO (1990) The Ants, Harvard University Press, Cambridge
Jones D, Susilo TFX, Bignell DE, Hardiwinoto S, Gillison AN, Eggleton P (2003) Termite assemblage collapse along a land-use intensification gradient in lowland central Sumatra, Indonesia. Journal of Applied Ecology 40: 380–391
Kalshoven LGE (1950) De plagen van cultuurgewassen in Indonesie, Uitgeverij van Hoeve, ’s-Gravenhage/Bandoeng
Klein A-M, Steffan-Dewenter I, Tscharntke T (2004) Foraging trip duration and density of megachilid bees, eumenid wasps and pompilid wasps in tropical agroforestry systems. Journal of Animal Ecology 73: 517–525
Klein A-M, Steffan-Dewenter I, Tscharntke T (2003) Fruit set of highland coffee increases with the diversity of pollinating bees. Proceedings of the Royal Biological Society of London 270: 955–961
Klein A-M, Steffan-Dewenter I, Tscharntke T (2002) Predator-prey ratios on cacoa along a land-use gradient in Indonesia. Biodiversity and Conservation 11: 683–693
Klein A-M, Steffan-Dewenter I, Tscharntke T (2006) Rainforest promotes trophic interactions and diversity of trap-nesting Hymenoptera in adjacent agroforestry. Journal of Animal Ecology (in press)
Klein BC (1989) Effects of forest fragmentation on dung and carrion beetle communities in Central Amazonia. Ecology 70: 1715–1725
Lande R (1996) Statistics and partitioning of species diversity, and similarity among multiple communities. Oikos 76: 5–13
Lawton JH, Bignell DE, Bolton B, Bloemers GF, Eggleton P, Hammond PM, Hodda M, Holt RD, Larsen TB, Mawsley NA, Stork NE, Srivastava DS, Watt AD (1998) Biodiversity inventories, indicator taxa and effects of habitat modification in tropical forest. Nature 391: 72–76
McKinney ML, Lockwood JL (1999) Biotic homogenization: a few winners replacing many losers in the next mass extinction. Tree 14: 450–453
McNeely JA (2004) Nature vs. nurture: managing relationships between forests, agroforestry and wild biodiversity. Agroforestry Systems 61: 155–165
Meffe GK (1998) The potential consequences of pollinator declines on the conservation of biodiversity and stability of food crop yields. Conservation Biology 12: 8–17
Millennium Ecosystem Assessment (2005) Ecosystem and human well-being: synthesis, Island Press, Washington, DC.
Myers N, Mittelmeier RA, Mittelmeier CG, da Fonseca GAB, Kent J (2000) Biodiversity hotspots for conservation priorities. Nature 493: 853–858
O’Neill KM (2001) Solitary wasps: behavior and natural history, Cornell University Press, New York
Peck SB, Forsyth A (1982) Composition, structure and competitive behavior in a guild of Ecuadorian rain forest dung beetles (Coleoptera, Scarabaeidae). Canadian Journal of Zoology 60: 1624–1634
Perfecto I, Vandermeer J, Hanson P, Cartín V (1997) Arthropod biodiversity loss and the transformation of a tropical agro-ecosystem. Biodiversity and Conservation 6: 935–945
Perfecto I, Vandermeer J, Mas A, Pinto LS (2005) Biodiversity, yield, and shade coffee certification. Ecological Economics 54: 435–446
Perfecto I, Snelling R (1995) Biodiversity and the transformation of a tropical agroecosystem: Ants in coffee plantations. Ecological Aplications 5: 1084–1097
Peterson G, Allen CR, Holling CS (1998) Ecological resilience, biodiversity, and scale. Ecosystems 1: 6–18
Philpott SM (2005) Changes in arboreal ant populations following pruning of coffee shade-trees in Chiapas, Mexico. Agroforestry Systems 64: 219–224
Potter L (2001) Agricultural intensification in Indonesia: outside pressures and indigenous strategies. Asia Pacific Viewpoint 42: 305–324
Putz F, Blate EGM, Redford KH, Fimbel R, Robinson J (2001) Tropical forest management and conservation of biodiversity: an overview. Conservation Biology 15: 7–20
Ramirez OA, Somarriba E, Ludewigs T, Ferreira P (2001) Financial returns, stability and risk of cacao-plantain-timber agroforestry systems in Central America. Agroforestry Systems 51: 141–151
Rice RA, Greenberg R (2000) Cacao cultivation and the conservation of biological diversity. Ambio 29: 167–172
Room PM (1971) The relative distribution of ant species in Ghana’s cocoa farms. Journal of Animal Ecology 40: 735–751
Roubik DW (1995) Pollination of cultivated plants in the Tropics, FAO Agricultural Services Bulletin 118, Rome.
Sanchez PA (1999) Delivering on the promise of agroforestry. Environment, Development and Sustainability 1: 275–284
Schroth G, da Fonseca GAB, Harvey CA, Gascon C, Vasconcelos HL, Izac A-MN (2004) Agroforestry and biodiversity conservation in tropical landscapes, Island Press, Washington DC
Schulze CH, Waltert M, Kessler PJA, Pitopang R, Shahabuddin, Veddeler D, Muhlenberg M, Gradstein SR, Leuschner C, Steffan-Dewenter I, Tscharntke T (2004) Biodiversity indicator groups of tropical land-use systems: comparing plants, birds and insects. Ecological Applications 14: 1321–1333
Shahabuddin, Schulze CH, Tscharntke T (2005) Changes of dung beetle communities from rainforests towards agroforestry systems and annual cultures in Sulawesi (Indonesia). Biodiversity and Conservation 14: 863–877
Siebert SF (2002) From shade-to sun-grown perennial crops in Sulawesi, Indonesia: implications for biodiversity conservation and soil fertility. Biodiversity and Conservation 11: 1889–1902
Sodhi NS, Koh LP, Brook BW, Ng PKL (2004) Southeast Asian biodiversity: an impending disaster. Trends in Ecology and Evolution 18: 654–660
Summerville KS, Boulware MJ, Veech JA (2003) Spatial variation in species diversity and composition of forest Lepidoptera in Eastern deciduous forests of North America. Conservation Biology 17: 1045–1057
Tscharntke T, Gathmann A, Steffan-Dewenter A (1998) Bioindication using trap-nesting bees and wasps and their natural enemies: community structure and interactions. Journal of Applied Ecology 35: 708–719
Tscharntke T, Klein A-M, Kreuss A, Steffan-Dewenter I, Thies C (2005) Landscape perspectives on agricultural intensification and biodiversityecosystem service management. Ecology Letters 8: 857–874
Tylianakis JM, Klein A-M, Tscharntke T (2005) Spatiotemporal variation in the diversity of Hymenoptera across a tropical habitat gradient. Ecology 86: 3296–3302
Urquhart DH (1955) Cocoa, Longmans, London
Veech JA, Summerville KS, Crist TO, Gering JC (2002) The additive partitioning of species diversity: recent revival of an old idea. Oikos 99: 3–9
Vingerhoets, J (2002) International Cocoa Organization annual report 2001-02. ICCO.
Wagner HH, Wildi O, Ewald KC (2000) Additive partitioning of plant species diversity in an agricultural mosaic landscape. Landscape Ecology 15: 219–227
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Bos, M.M. et al. (2007). Insect diversity responses to forest conversion and agroforestry management. In: Tscharntke, T., Leuschner, C., Zeller, M., Guhardja, E., Bidin, A. (eds) Stability of Tropical Rainforest Margins. Environmental Science and Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30290-2_14
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