Skip to main content Accessibility help
×
Home
Hostname: page-component-55b6f6c457-rq6d8 Total loading time: 0.247 Render date: 2021-09-28T17:56:51.398Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Pattern and impact of hornbill seed dispersal at nest trees in a moist evergreen forest in Thailand

Published online by Cambridge University Press:  09 August 2004

Shumpei Kitamura
Affiliation:
Center for Ecological Research, Kyoto University, Kamitanakami-Hirano, Otsu 520-2113, Japan
Takakazu Yumoto
Affiliation:
Center for Ecological Research, Kyoto University, Kamitanakami-Hirano, Otsu 520-2113, Japan
Pilai Poonswad
Affiliation:
Hornbill Project, Department of Microbiology, Mahidol University, Bangkok 10400, Thailand
Naohiko Noma
Affiliation:
School of Environmental Science, The University of Shiga Prefecture, Hikone 522-8533, Japan
Phitaya Chuailua
Affiliation:
Hornbill Project, Department of Microbiology, Mahidol University, Bangkok 10400, Thailand
Kamol Plongmai
Affiliation:
Hornbill Project, Department of Microbiology, Mahidol University, Bangkok 10400, Thailand
Tamaki Maruhashi
Affiliation:
Department of Human and Culture, Musashi University, Nerima, Tokyo 176-8534, Japan
Chumphon Suckasam
Affiliation:
National Park, Wildlife and Plant Conservation Department, Bangkok 10900, Thailand

Abstract

Following the entire process of frugivore seed dispersal, from intake of seeds to seed deposition, is a difficult task. One alternative is to monitor areas of heavy seed rain deposited by animals. We quantified the number of seeds deposited by hornbills and followed the fates of these seedlings for 3 y to evaluate the effectiveness of hornbill seed dispersal at nest trees, on the basis of seedling survival. For 14 mo, fallen fruits and seeds were collected in traps established around four nest trees of each of two hornbill species (Aceros undulatus and Anthracoceros albirostris) and the seedlings were monitored in adjacent quadrats. Seedfall and seedlings of species represented in hornbill diets occurred at significantly higher densities in the traps/quadrats in front of nest cavities than in other traps/quadrats. Fewer seedling species and individuals germinated under nest trees than expected from the composition of the seedfall. Our results suggest that the quality of hornbill seed dispersal might be poor at nest trees due to the highly concentrated seedfall, which results in high seed and seedling mortality. Although seed deposition at nest trees is a useful guide to hornbill diet during the breeding season, it is clearly not of benefit to the plants involved. However, the pattern and consequences of hornbill seed dispersal at nest sites is likely very different from that during the non-breeding season.

Type
Research Article
Copyright
2004 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)
23
Cited by

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Pattern and impact of hornbill seed dispersal at nest trees in a moist evergreen forest in Thailand
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Pattern and impact of hornbill seed dispersal at nest trees in a moist evergreen forest in Thailand
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Pattern and impact of hornbill seed dispersal at nest trees in a moist evergreen forest in Thailand
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *