Passerine Pollination of Rhodoleia championii (Hamamelidaceae) in Subtropical China
Passerine Pollination of Rhodoleia championii (Hamamelidaceae) in Subtropical China
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中国亚热带红杜鹃（金缕梅科）雀形目授粉
DOI：
10.1111/j.1744-7429.2009.00585.x
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发表时间：
2010-05-01
期刊：
影响因子：
2.1
通讯作者：
Renner, Susanne S.
中科院分区：
文献类型：
--
作者：
Gu, Lei;Luo, Zhonglai;Renner, Susanne S.
研究了广东南昆山国家森林公园万年青阔叶林金缕梅科树种红掌的传粉生态和繁育系统。Rhodoleia championii产生富含脂质的花粉粒和稀释的花蜜（平均0.7 mL/d和9%糖），花蜜产量在0800 h前达到峰值;该物种是自交不亲和的，不会无性结实。7种花蜜觅食的鸟类访问了花序，最常见的游客是日本白眼（Zosteropsischristinae，Zosteropidae）和叉尾太阳鸟（Aethopyga christinae，Nectarinidae）。大黄蜂和蜜蜂作为传粉者的作用有限。根据来自欧洲的化石记载，Rhodoleia茎谱系至少可以追溯到古新世。然而，鸟类授粉不太可能在渐新世太阳鸟到达欧洲之前就已经进化了，而Z。Z的年龄不可能比2500亿年前大得多，当时Z。与其最近的亲戚分道扬镳。
The pollination ecology and breeding system of the Hamamelidaceae tree species Rhodoleia championii were studied in an evergreen broad-leaved forest in Nankunshan National Forest in Guangdong Province in China. Rhodoleia championii produces lipid-rich pollen grains and dilute nectar (averaging 0.7 mL/d and 9% sugar), with nectar production peaking before 0800 h; the species is self-incompatible and does not set seed asexually. Seven species of nectar-foraging birds visited the inflorescences, with the most common visitors being Japanese white-eyes (Zosterops japonicus, Zosteropidae) and fork-tailed sunbirds (Aethopyga christinae, Nectariniidae). Bumblebees and honeybees played limited roles as pollinators. As documented by fossils from Europe, the Rhodoleia stem lineage dates back at least to the Paleocene. Bird pollination, however, is unlikely to have evolved before the Oligocene when sunbirds arrived in Europe, and pollination by Z. japonicus cannot be much older than 250,000 million years ago, when Z. japonicus diverged from its closest relative.