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Do Species with Large Capitula Suffer Higher Rates of Predispersal Seed Loss than Species with Small Capitula? A Field Survey of 34 Asteraceae Species in an Alpine Meadow

文献类型：期刊论文

作者Zhang, Yunshu3; Yang, Yangheshan3; Xi, Xinqiang3; Niklas, Karl J.2; Sun, Shucun1
刊名INTERNATIONAL JOURNAL OF PLANT SCIENCES
出版日期2018-09-01
卷号179期号:7页码:554-559
关键词evolutionary ecology Asteraceae predispersal seed loss tephritid fly alpine meadow
ISSN号1058-5893
DOI10.1086/698766
产权排序3
文献子类Article
英文摘要Premise of research.Capitulum (flowerhead) size varies widely across Asteraceae species, even within the same community. Previous work has suggested that capitulum variation among species results from the contrasting selection processes by pollinators for larger capitulum and by predispersal seed (achene) predators for smaller capitulum. However, this explanation is contested by the finding across Asteraceae that seed loss rate per infested capitulum is lower in species with large capitula, such that large capitula do not necessarily suffer higher overall seed loss compared to species with small capitula.Methodology.We measured the capitulum size, seed size, plant aboveground biomass, seed loss per infested capitulum, and capitula infestation rates for 34 Asteraceae species in an alpine meadow to determine whether there is a capitulum size-dependent effect on overall predispersal seed loss.Pivotal results.The data show that the seed loss rate per infested capitulum decreased (but capitula infestation rate increased) with increasing capitulum size. Nevertheless, at the species level, the overall predispersal seed loss rate (seed loss rate per infested capitulum x capitula infestation rate) was higher in species with larger capitula compared to those with smaller capitula. The disadvantage of producing larger capitula was partly compensated for by the competitive advantage conferred by producing large individual seeds and greater aboveground biomass.Conclusions.Species with large capitula suffer higher rates of overall predispersal seed loss, which is consistent with the hypothesis that predispersal seed predators affect capitulum size. We suggest that biological interactions between plants and animals (e.g., pollinators and seed predators) contribute to the great diversity of capitulum size among Asteraceae species.
学科主题Plant Sciences
URL标识查看原文
WOS关键词PLANT ; SIZE ; EVOLUTION ; PREDATION ; CONSEQUENCES ; DISPERSAL ; HERBIVORY ; LARVAE ; FLIES
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000442312900004
出版者UNIV CHICAGO PRESS
源URL[http://210.75.237.14/handle/351003/30481]  
专题生物多样性与生态系统服务领域_生态研究
成都生物研究所_生态研究
生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室
生物多样性与生态系统服务领域_生态系统恢复与生物多样性保育四川省重点实验室
作者单位1.Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Chinaa
2.Cornell Univ, Plant Biol Sect, Sch Integrat Plant Sci, Ithaca, NY 14850 USA;
3.Nanjing Univ, Dept Ecol, Coll Life Sci, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China;
推荐引用方式
GB/T 7714		 Zhang, Yunshu,Yang, Yangheshan,Xi, Xinqiang,et al. Do Species with Large Capitula Suffer Higher Rates of Predispersal Seed Loss than Species with Small Capitula? A Field Survey of 34 Asteraceae Species in an Alpine Meadow[J]. INTERNATIONAL JOURNAL OF PLANT SCIENCES,2018,179(7):554-559.
APA Zhang, Yunshu,Yang, Yangheshan,Xi, Xinqiang,Niklas, Karl J.,&Sun, Shucun.(2018).Do Species with Large Capitula Suffer Higher Rates of Predispersal Seed Loss than Species with Small Capitula? A Field Survey of 34 Asteraceae Species in an Alpine Meadow.INTERNATIONAL JOURNAL OF PLANT SCIENCES,179(7),554-559.
MLA Zhang, Yunshu,et al."Do Species with Large Capitula Suffer Higher Rates of Predispersal Seed Loss than Species with Small Capitula? A Field Survey of 34 Asteraceae Species in an Alpine Meadow".INTERNATIONAL JOURNAL OF PLANT SCIENCES 179.7(2018):554-559.

入库方式： OAI收割

来源：成都生物研究所

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