气候变化领域集成服务门户(CCPortal): Environmental gradients and the evolution of tri-trophic interactions

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DOI	10.1111/ele.13190
	Environmental gradients and the evolution of tri-trophic interactions
	Kergunteuil A.; Röder G.; Rasmann S.
发表日期	2019
ISSN	1461023X
卷号	22 期号:2
英文摘要	Long-standing theory predicts herbivores and predators should drive selection for increased plant defences, such as the specific production of volatile organic compounds for attracting predators near the site of damage. Along elevation gradients, a general pattern is that herbivores and predators are abundant at low elevation and progressively diminish at higher elevations. To determine whether plant adaptation along such a gradient influences top-down control of herbivores, we manipulated soil predatory nematodes, root herbivore pressure and plant ecotypes in a reciprocal transplant experiment. Plant survival was significantly higher for low-elevation plants, but only when in the presence of predatory nematodes. Using olfactometer bioassays, we showed correlated differential nematode attraction and plant ecotype-specific variation in volatile production. This study not only provides an assessment of how elevation gradients modulate the strength of trophic cascades, but also demonstrates how habitat specialisation drives variation in the expression of indirect plant defences. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Entomopathogenic nematodes; local adaptation; plant-mediated interaction; root herbivore; tri-trophic interactions; trophic cascade; volatile organic compounds
语种	英语
scopus关键词	Nematoda; animal; ecosystem; food chain; herbivory; plant; predation; Animals; Ecosystem; Food Chain; Herbivory; Plants; Predatory Behavior
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/121152
作者单位	Functional Ecology Laboratory, Institute of Biology, University of Neuchâtel, rue Emile Argand 11, Neuchâtel, 2000, Switzerland; Fundamental and Applied Research in Chemical Ecology, Institute of Biology, University of Neuchâtel, rue Emile Argand 11, Neuchâtel, 2000, Switzerland
推荐引用方式 GB/T 7714	Kergunteuil A.,Röder G.,Rasmann S.. Environmental gradients and the evolution of tri-trophic interactions[J],2019,22(2).
APA	Kergunteuil A.,Röder G.,&Rasmann S..(2019).Environmental gradients and the evolution of tri-trophic interactions.Ecology Letters,22(2).
MLA	Kergunteuil A.,et al."Environmental gradients and the evolution of tri-trophic interactions".Ecology Letters 22.2(2019).