Aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of Thailand
Hornbills (Bucerotidae) are widely regarded as important seed dispersers in tropical forests in Africa and Asia. We investigated how the roosting behavior of wreathed hornbills (Aceros undulatus) influences seed deposition and seedling survival at a roost site in a moist evergreen forest of Khao Yai...
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th-mahidol.186822018-07-12T09:13:39Z Aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of Thailand Shumpei Kitamura Takakazu Yumoto Naohiko Noma Phitaya Chuailua Tamaki Maruhashi Prawat Wohandee Pilai Poonswad Kyoto University Mahidol University National Institutes for the Humanities, Research Institute for Humanity and Nature University of Shiga Prefecture Musashi University National Park, Wildlife and Plant Conservation Department, Thailand Rikkyo University Agricultural and Biological Sciences Hornbills (Bucerotidae) are widely regarded as important seed dispersers in tropical forests in Africa and Asia. We investigated how the roosting behavior of wreathed hornbills (Aceros undulatus) influences seed deposition and seedling survival at a roost site in a moist evergreen forest of Khao Yai National Park, Thailand. Fallen fruits and seeds were collected in traps that were placed around a roosting site for 14 months, and seedlings were monitored in adjacent quadrats for 3 years. Seedfall and seedlings of species represented in the hornbill diet occurred at significantly higher densities in the traps and quadrats located beneath the crown of the roosting tree than in those located beyond the crown. With the exception of Cinnamomum subavenium, the seeds and seedlings of most diet species rarely survived beyond the first year. The quality of hornbill dispersal to this roosting site may be poor due to the highly concentrated seedfall, which results in high seed and seedling mortality. However, the number of seeds deposited by each hornbill each day at roosting sites is relatively low. Wreathed hornbills are primarily scatter dispersers during the day and probably serve as agents of seed dispersal in the moist evergreen forest of Khao Yai. © 2008 The Ecological Society of Japan. 2018-07-12T02:13:39Z 2018-07-12T02:13:39Z 2008-11-01 Article Ecological Research. Vol.23, No.6 (2008), 943-952 10.1007/s11284-008-0460-x 14401703 09123814 2-s2.0-50949091733 https://repository.li.mahidol.ac.th/handle/123456789/18682 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=50949091733&origin=inward |
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Agricultural and Biological Sciences Shumpei Kitamura Takakazu Yumoto Naohiko Noma Phitaya Chuailua Tamaki Maruhashi Prawat Wohandee Pilai Poonswad Aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of Thailand |
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Hornbills (Bucerotidae) are widely regarded as important seed dispersers in tropical forests in Africa and Asia. We investigated how the roosting behavior of wreathed hornbills (Aceros undulatus) influences seed deposition and seedling survival at a roost site in a moist evergreen forest of Khao Yai National Park, Thailand. Fallen fruits and seeds were collected in traps that were placed around a roosting site for 14 months, and seedlings were monitored in adjacent quadrats for 3 years. Seedfall and seedlings of species represented in the hornbill diet occurred at significantly higher densities in the traps and quadrats located beneath the crown of the roosting tree than in those located beyond the crown. With the exception of Cinnamomum subavenium, the seeds and seedlings of most diet species rarely survived beyond the first year. The quality of hornbill dispersal to this roosting site may be poor due to the highly concentrated seedfall, which results in high seed and seedling mortality. However, the number of seeds deposited by each hornbill each day at roosting sites is relatively low. Wreathed hornbills are primarily scatter dispersers during the day and probably serve as agents of seed dispersal in the moist evergreen forest of Khao Yai. © 2008 The Ecological Society of Japan. |
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Kyoto University |
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Kyoto University Shumpei Kitamura Takakazu Yumoto Naohiko Noma Phitaya Chuailua Tamaki Maruhashi Prawat Wohandee Pilai Poonswad |
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Article |
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Shumpei Kitamura Takakazu Yumoto Naohiko Noma Phitaya Chuailua Tamaki Maruhashi Prawat Wohandee Pilai Poonswad |
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Shumpei Kitamura |
title |
Aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of Thailand |
title_short |
Aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of Thailand |
title_full |
Aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of Thailand |
title_fullStr |
Aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of Thailand |
title_full_unstemmed |
Aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of Thailand |
title_sort |
aggregated seed dispersal by wreathed hornbills at a roost site in a moist evergreen forest of thailand |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/18682 |
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1763494539830493184 |