Early onset of spring increases the phenological mismatch between plants and pollinators
Early onset of spring increases the phenological mismatch between plants and pollinators
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DOI：
10.1890/12-2003.1
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发表时间：
2013-10-01
期刊：
影响因子：
4.8
通讯作者：
Ida, Takashi Y.
中科院分区：
文献类型：
--
作者：
Kudo, Gaku;Ida, Takashi Y.
气候变暖加速了开花和昆虫传粉者出现的时间，特别是在春天。如果这些物候变化的进展独立的物种之间，植物传粉者互惠的功能可能会被修改。然而，在授粉系统的物候不匹配的证据是有限的。我们调查了一个春天短命，Corpus ambigua，和它的传粉者（熊蜂）的物候，并在10-14年的三个种群的种子设置成功。虽然开花开始和第一次检测到越冬蜂王在C。红柳种群与融雪时间和/或春季温度密切相关，春季提前开花往往先于第一个传粉者的发现，导致低授粉服务导致低种子产量。开花开始时间，物候不匹配，和结实成功之间的关系强烈表明，物候不匹配是一个主要的限制因素繁殖的春季短命植物。本报告基于长期监测，阐述了物候不匹配的机制及其对植物-传粉者相互作用的生态影响。错配的频繁发生会降低种子产量，并可能影响春季短命植物的种群动态。
Climate warming accelerates the timing of flowering and insect pollinator emergence, especially in spring. If these phenological shifts progress independently between species, features of plant-pollinator mutualisms may be modified. However, evidence of phenological mismatch in pollination systems is limited. We investigated the phenologies of a spring ephemeral, Corydalis ambigua, and its pollinators (bumble bees), and seed-set success over 10-14 years in three populations. Although both flowering onset and first detection of overwintered queen bees in the C. ambigua populations were closely related to snowmelt time and/or spring temperature, flowering tended to be ahead of first pollinator detection when spring came early, resulting in lower seed production owing to low pollination service. Relationships between flowering onset time, phenological mismatch, and seed-set success strongly suggest that phenological mismatch is a major limiting factor for reproduction of spring ephemerals. This report demonstrates the mechanism of phenological mismatch and its ecological impact on plant-pollinator interactions based on long-term monitoring. Frequent occurrence of mismatch can decrease seed production and may affect the population dynamics of spring ephemerals.