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title: Latitudinal effects on phenology near the northern limit of figs in China
author: Chen, Huanhuan;  Zhang, Yuan;  Peng, Yanqiong;  Corlett, Richard T.
Issued Date: 2018
Abstract: The interaction between pollinating wasps and figs is an obligate plant-insect mutualism, and the ca. 750 Ficus species are mainly tropical. Climatic constraints may limit species distributions through their phenology and this seems particularly likely for figs, where phenological mismatches can cause local extinction of the short-lived pollinators. We therefore compared the phenologies of Ficus altissima, F. racemosa and F. semicordata in tropical Xishuangbanna (21 degrees 55'N) and subtropical Liuku (25 degrees 50'N), SW China, to understand what factors limit fig distributions near their northern limits. All species produced synchronous crops of syconia in Xishuangbanna but production in Liuku was continuous, which may help maintain pollinator populations. However, in general, we found decreased fitness at the northern site: slower syconium development, so fewer crops each year; fewer seeds per syconium (two species); and fewer pollinators and more non-pollinators per syconium, so less pollen is dispersed. This is most easily explained by colder winters, although low humidities may also contribute, and suggests the northern limit is set by temperature constraints on reproductive phenology. If so, the warming predicted for future decades is expected to enhance the fitness of northern populations of figs and, in the longer term, allow them to shift their range limits northwards.
Department: 其他
Related URLs: 10.1038/s41598-018-22548-7
Source: SCIENTIFIC REPORTS
Content Type: 期刊论文
URI: http://ir.xtbg.org.cn/handle/353005/10811
ISSN: 2045-2322
Appears in Collections:其他_期刊论文

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Recommended Citation:
Chen, Huanhuan,Zhang, Yuan,Peng, Yanqiong,et al. Latitudinal Effects On Phenology Near The Northern Limit Of Figs In China[J]. Scientific Reports,2018,8(X):-.

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