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异种类型的花粉避免策略在永兴岛的植物传粉者通用网络中占主导地位

Xiang-Ping Wang^1,2, Jin-Chao Cai^1,2,3, Ma-Yin Tong^1,2,4

¹Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden Chinese Academy of Sciences Guangzhou China.

Ecology and evolution

|March 6, 2024

概括

大多数岛屿植物避免不必要的花粉,接受不到10%的异种花粉 (HP). 花的尺寸,而不是网络结构,影响HP接收,这表明HP避免策略在通用授粉系统中占主导地位.

科学领域:

生态生态学生态生态学
植物生殖生物学植物生殖生物学

背景情况:

异种花粉 (HP) 沉积在物种之间有所不同,受HP避免或容忍策略的影响.
海洋岛屿植物-传粉者网络通常是普遍的和高度连接的.
在这些普遍的社区中,管理HP的主要策略仍然不清楚.

研究的目的:

为了检查永兴岛社区29个植物物种的污名花粉沉积模式.
评估表型专业化和网络结构对HP负载大小和多样性的影响.
通过分析同种花粉 (CP) 和HP收件之间的关系,测试HP积累模式的假设.

主要方法:

在29个植物物种中量化了污名花粉沉积.
评估HP负载大小和多样性.
分析了CP和HP收款之间的关系,以了解积累模式.
评估了花朵大小和网络结构性质对花粉沉积的影响.

主要成果:

种类之间HP接收的显著差异;75.9%接收<10%HP,一个物种接收>40%HP.
花的尺寸是HP接收变化的强有力的驱动因素;网络属性没有显著的影响.
19种物种显示HP和CP负载之间没有相关性,HP负载和比例较小.
大多数物种表现出一种避免HP的策略,HP的接收很少.

结论:

在这个普遍的岛屿授粉系统中,HP避免策略是普遍存在的.
在采用回避策略的物种中,HP接收与CP接收在很大程度上是独立的.
在一般化授粉系统中的植物优先考虑在污名上最小化HP,这表明对它进行了积极的选择.

关键词:

异种类型的花粉避免网络结构性质网络结构性质海洋岛屿是一个海洋岛屿.现型专业化现型专业化花粉的沉积花粉的沉积.授粉网络是一个授粉网络.

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