委内瑞拉帕拉莫的表型模式和授粉网络结构:植物与动物相互作用的群落尺度视角

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
R. Pelayo, P. Soriano, Nelson J. Márquez, L. Navarro
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引用次数: 11

摘要

摘要背景:关于páramo植物的生活史,如物候学和植物-动物相互作用等方面的研究很少。目的:我们分析了开花的物候模式,并描述了委内瑞拉páramo植物传粉者网络的结构,以确定该生态系统中的关键物种。方法:在3000 ~ 4200 m的16个固定样地,连续3年每月对76种本地植物的开花个体数进行统计,并记录其传粉媒介。我们使用该数据集开发了一个植物传粉者网络,并在此网络上计算了与结构特性相关的九个不同指标。结果:大部分品种花期集中在5 ~ 11月的雨季,也有部分品种连续开花。花卉游客协会包括蜂鸟、穿孔虫、大黄蜂、双翅目和鳞翅目。植物-花卉互动网络不具有巢性,但具有显著的专业化指数(H2)和较高的功能互补性值。结论:Páramo植物有能力维持一个常驻蜜源动物群(大黄蜂和蜂鸟),因为全年持续开花。然而,由于高度专业化和功能互补性,已确定的植物-传粉者网络可能对成分物种的损失非常敏感。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Phenological patterns and pollination network structure in a Venezuelan páramo: a community-scale perspective on plant-animal interactions
ABSTRACT Background: Little information is available about life history of páramo plants such as phenology and plant-animal interactions. Aims: We analysed phenological patterns of flowering and characterised the structure of a plant-pollinator network in a Venezuelan páramo in order to identify key species in this ecosystem. Methods: We counted the number of individuals with flowers of 76 native plant species and recorded their pollinators in 16 permanent plots between 3000 and 4200 m monthly for three years. We used this dataset to develop a plant-pollinator network, on which nine different metrics related to structural properties were calculated. Results: The flowering of most species concentrated during the rainy season (between May and November), however some species have continuous flowering. The guild of floral visitors included hummingbirds, flower piercers, bumblebees, Diptera and Lepidoptera. The plant – flower visitor interaction network did not exhibit nestedness, but showed a significant specialization index (H2) and high values of functional complementarity. Conclusions: Páramo plants have the capacity of maintaining a resident nectarivorus fauna (bumblebees and hummingbirds) because of continuous flower offer during the year. However, the plant – pollinator network identified could be very sensitive to the loss component species, owing to high levels of specialisation and functional complementarity.
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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