The Reproductive Ecology of an Emergent Dipterocarp in a Lowland Rain Forest in Sarawak(Reproductive Biology)
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概要
- 論文の詳細を見る
This paper reports the first direct observation of reproductive processes of an emergent tree, Dryobalanops lanceolata (Dipterocarpaceae), and its interactions with pollinators and seed predators, using a canopy observation system built in Sarawak, Malaysia. D. lanceolata flowers were mostly pollinated by medium-sized stingless bees (Trigona spp., Apidae), and stigmas of all unbagged flowers received pollen grains. Ovaries did not develop without pollination. Abortion rate in the early stage of fruit development was 93% in fruits fertilized by natural pollinators. All the experimentally selfed ovaries were aborted at this stage. Despite the heavy abortion rate, the dry weight loss at this stage was only 17% of the total reproductive effort, because abortion occurred before active investment in fruits. Among the remaining fruits, 40% were lost to the primary seed predator, Mecysolobus crassus (Curculionidae). Such attacked fruits were also selectively aborted at the middle stage of fruit maturation. Final germinating fruits, which were 3.6% of the total number of flowers, got 47% of the total reproductive effort.
- 種生物学会の論文
著者
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Nagamitsu T
Hokkaido Research Center Forestry And Forest Products Research Institute
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Nagamitsu Teruyoshi
Center For Ecological Research Kyoto University
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INOUE Tamiji
Center for Ecological Research, Kyoto University
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Inoue Tamiji
Center For Ecological Research Kyoto University
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MOMOSE Kuniyasu
Graduate School for Asian and African Area Studies, Kyoto University
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MOMOSE KUNIYASU
Center for Ecological Research, Kyoto University
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Momose Kuniyasu
Graduate School For Asian And African Area Studies Kyoto University
関連論文
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- Seasonality and Vertical Structure of Light-Attracted Insect Communities in a Dipterocarp Forest in Sarawak
- A New Name of Trigona (Hymenoptera, Apidae)
- Preference in flower visits and partitioning in pollen diets of stingless bees in an Asian tropical rain forest
- The Reproductive Ecology of an Emergent Dipterocarp in a Lowland Rain Forest in Sarawak(Reproductive Biology)
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