| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
I studied the qualitative effectiveness of hornbills as seed dispersers for large-seeded tree species Aglaia spectabilis (Meliaceae) in Thailand, by comparing the germination rate between controls and hornbill-regurgitated seeds and by following the seedling survival after 15 years. For Aglaia spectabilis, hornbill passage had positive effects on germination rate. 1-yr seedlings of Aglaia spectabilis were scattered in the forest. Some seedlings were distributed far from the fruiting trees and survival of 1-yr seedlings after 15 years was relatively high (16%). Based on the results obtained from previous studies and this project, I conclude that hornbills are quantitatively and qualitatively effective seed dispersers for large seeded tree species Aglaia spectabilis in Thai forest.
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