文化大學機構典藏 CCUR:Item 987654321/41854
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    題名: Floral traits of mammal-pollinated Mucuna macrocarpa (Fabaceae): Implications for generalist-like pollination systems
    作者: Kobayashi, S (Kobayashi, Shun)
    Denda, T (Denda, Tetsuo)
    Liao, CC (Liao, Chi-Cheng)
    Lin, YH (Lin, Yu-Hsiu)
    Wu, SH (Wu, Shu-Hui)
    Izawa, M (Izawa, Masako)
    貢獻者: 生科系
    關鍵詞: NECTAR PRODUCTION
    SUGAR COMPOSITION
    REPRODUCTIVE ISOLATION
    SPUR LENGTH
    EVOLUTION
    FLOWERS
    ORCHID
    SELECTION
    BEHAVIOR
    FOREST
    日期: 2018-08
    上傳時間: 2019-01-17 11:44:52 (UTC+8)
    摘要: Floral traits are adapted by plants to attract pollinators. Some of those plants that have different pollinators in different regions adapt to each pollinator in each region to maximize their pollination success. Mucuna macrocarpa (Fabaceae) limits the pollinators using its floral structure and is pollinated by different mammals in different regions. Here, we examine the relationships between floral traits of M.macrocarpa and the external morphology of mammalian pollinators in different regions of its distribution. Field surveys were conducted on Kyushu and Okinawajima Island in Japan, and in Taiwan, where the main pollinators are the Japanese macaque Macaca fuscata, Ryukyu flying fox Pteropus dasymallus, and red-bellied squirrel Callosciurus erythraeus, respectively. We measured the floral shapes, nectar secretion patterns, sugar components, and external morphology of the pollinators. Results showed that floral shape was slightly different among regions and that flower sizes were not correlated with the external morphology of the pollinators. Volume and sugar rate of nectar were not significantly different among the three regions and did not change throughout the day in any of the regions. However, nectar concentration was higher in Kyushu than in the other two regions. These results suggest that the floral traits of M.macrocarpa are not adapted to each pollinator in each region. Although this plant limits the number of pollinators using its flower structure, it has not adapted to specific mammals and may attract several species of mammals. Such generalist-like pollination system might have evolved in the Old World.
    顯示於類別:[生命科學系] 期刊論文

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