Biodiversity patterns and trophic interactions in human-dominated tropical landscapes in Sulawesi (Indonesia): plants, arthropods and vertebrates

  • Yann Clough
  • Stefan Abrahamczyk
  • Marc-Oliver Adams
  • Alam Anshary
  • Nunik Ariyanti
  • Lydia Betz
  • Damayanti Buchori
  • Daniele Cicuzza
  • Kevin Darras
  • Dadang Dwi Putra
  • Brigitte Fiala
  • S. Robbert Gradstein
  • Michael Kessler
  • Alexandra-Maria Klein
  • Ramadhanil Pitopang
  • Bandung Sahari
  • Christoph Scherber
  • Christian H. Schulze
  • Shahabuddin
  • Simone Sporn
  • Kathrin Stenchly
  • Sri S. Tjitrosoedirdjo
  • Thomas C. Wanger
  • Maria Weist
  • Arno Wielgoss
  • Teja Tscharntke
Chapter
Part of the Environmental Science and Engineering book series (ESE)

Summary

The need to capture primary production in order to sustain and improve economic livelihoods has lead to increasing conversion of natural habitat and intensification of agricultural practices in many parts of the world including most tropical regions. Understanding how these processes affect ecosystems and their functioning, in particular in the high-diversity ecosystems of the tropics, has become a key issue in ecological research. In this chapter, our focus is on the agriculture-forest landscapes of Central Sulawesi, Indonesia, an island widely known for its endemic yet still poorly known flora and fauna. The rise of the region to one of the largest cacao producing areas in the world is at the core of recent land-use change and intensification processes. Covering plants (trees, rattan palms, herbs, bryophytes) and several invertebrate (ants, dung beetles, cacao insect herbivores, fruit-feeding butterflies, parasitic Hymenoptera, spiders) and vertebrate groups (amphibians, birds, murids, reptiles), we give an in-depth overview of the determinants of biodiversity in cacao landscapes, including both management and landscape-scale variables into our analyses. Results show that shaded agroforests host a rich community of species. By adopting a large-scale study design we showed that proximity of natural forest is a key predictor for species richness of plants, invertebrates and vertebrates alike. Endemics and forest specialists benefit most from indigenous shade tree cover and proximity to natural forest. Importantly, several functionally important groups such as insectivorous and seed-dispersing birds benefit from tall shade trees, shade tree diversity and proximity to forest edge, while parasitoid diversity is greatest close to natural forests. Available data on the effects of landuse change in cacao landscape of Central Sulawesi is increasing. Change in landscape configuration and management practices are being clearly reflected in the composition of species communities, with likely impacts on ecosystem services such as pest control and pollination. More knowledge is needed especially in terms of species interactions and ecosystem functioning, but also on how existing knowledge can contribute to effective conservation in human-dominated landscapes outside protected areas.

Keywords

agricultural intensification agroforestry amphibians ants arthropods bees biodiversity birds bryophytes butterflies cacao cocoa community structure Conopomorpha cramerella decomposition dung beetles forest distance fungal disease herbivores herbivory herbs Hymenoptera insects land-use change landscape ecology lianas mammals Muridae Nymphalidae parasitoids pollination plants predation rattan palms rats reptiles shade trees spiders Theobroma cacao trees trophic interactions vertebrates Biodiversity and trophic interations in tropical landscapes in Sulawesi 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Yann Clough
    • 1
  • Stefan Abrahamczyk
    • 2
  • Marc-Oliver Adams
    • 1
    • 3
  • Alam Anshary
    • 4
  • Nunik Ariyanti
    • 5
  • Lydia Betz
    • 1
  • Damayanti Buchori
    • 6
  • Daniele Cicuzza
    • 2
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  • Kevin Darras
    • 7
    • 1
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    • 8
  • Brigitte Fiala
    • 3
  • S. Robbert Gradstein
    • 9
  • Michael Kessler
    • 2
  • Alexandra-Maria Klein
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  • Ramadhanil Pitopang
    • 10
  • Bandung Sahari
    • 11
  • Christoph Scherber
    • 1
  • Christian H. Schulze
    • 12
  • Shahabuddin
    • 4
  • Simone Sporn
    • 9
  • Kathrin Stenchly
    • 1
  • Sri S. Tjitrosoedirdjo
    • 5
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    • 1
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  • Maria Weist
    • 1
  • Arno Wielgoss
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    • 1
  1. 1.Agroecology, University of GöttingenGöttingenGermany
  2. 2.Institute of Systematic BotanyUniversity of ZürichZürichSwitzerland
  3. 3.Department of Animal Ecology and Tropical Biology (Zoology III), BiozentrumUniversity of WürzburgAm HublandGermany
  4. 4.Faculty of AgricultureUniversity of TadulakoPaluIndonesia
  5. 5.Department of Biology, Faculty of Mathematics and Natural SciencesBogor Agricultural University, Jalan PadjajaranBogorIndonesia
  6. 6.Department of Plant ProtectionBogor Agricultural UniversityBogorIndonesia
  7. 7.14 allée de FrênesVersonnexFrance
  8. 8.Celebes Bird ClubPaluIndonesia
  9. 9.Albrecht-von-Haller-Institute of Plant SciencesUniversity of GöttingenGöttingenGermany
  10. 10.Herbarium Celebense (CEB)Tadulako University, Kampus Bumi TadulakoPaluIndonesia
  11. 11.Peka Indonesia Foundation (Indonesian Nature Conservation Foundation)-Wildlife Trust AllianceBogorIndonesia
  12. 12.Department of Population Ecology, Faculty Center of BiodiversityUniversity of ViennaViennaAustria
  13. 13.Environment Institute, School of Earth and Environmental SciencesUniversity of AdelaideAdelaideAustralia

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