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Title: Both forest fragmentation and coffee cultivation negatively affect epiphytic orchid diversity in Ethiopian moist evergreen Afromontane forests
Authors: Hundera, Kitessa *
Aerts, Raf * ×
De Beenhouwer, Matthias
Van Overtveld, Koen
Helsen, Kenny
Muys, Bart
Honnay, Olivier #
Issue Date: 2013
Publisher: Applied Science Publishers
Series Title: Biological Conservation vol:159 pages:285-291
Abstract: The moist evergreen Afromontane forest of SW Ethiopia has become extremely fragmented and most of the remnants are intensively managed for cultivation of coffee (Coffea arabica), with considerable impacts on forest structure, biodiversity and ecosystem functioning. We assessed the effect of coffee forest management and forest fragmentation on epiphytic orchid diversity. We selected large and small intensively managed forest sites and compared their epiphytic orchid diversity with the diversity of natural unfragmented forest. We surveyed 339 canopy trees using rope climbing techniques. Orchid richness decreased and community composition changed, from the natural unfragmented forest, over the large managed forest fragments to the small managed forest fragments. This indicates that both forest management and fragmentation contribute to the loss of epiphytic orchids. Both the removal of large canopy trees typical
for coffee management, and the occurrence of edge effects accompanying forest fragmentation are likely responsible for species loss and community composition changes. Even though some endangered orchid species persist even in the smallest managed fragments, large forest fragments are better options for the conservation of epiphytic orchids than small forests. Our results ultimately show that even though shade
coffee cultivation is considered as a close-to-nature practice and is promoted as biodiversity conservation friendly, it cannot compete with the epiphytic orchid conservation benefit generated by large unmanaged moist evergreen Afromontane forests.
ISSN: 0006-3207
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division Forest, Nature and Landscape Research
Ecology, Evolution and Biodiversity Conservation Section
Division Soil and Water Management
* (joint) first author
× corresponding author
# (joint) last author

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Hundera Aerts et al BIOC 2013.pdfAuthor copy PDF Published 780KbAdobe PDFView/Open Request a copy
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BIOC-D-12-00571R2-SupportingMaterial-A-C-final.docElectronic Supplementary Material part A-C Published 106KbMicrosoft WordView/Open
BIOC-D-12-00571R2-SupportingMaterial-D-E.docElectronic Supplementary Material part D-E Published 5970KbMicrosoft WordView/Open
BIOC-D-12-00571R2-OA.pdfOA version of the article Published 661KbAdobe PDFView/Open
BIOC-D-12-00571R2-revisionnotes-final.docRevision notes 2 Published 105KbMicrosoft WordView/Open Request a copy

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