气候变化领域集成服务门户(CCPortal): Proximity to canopy mediates changes in the defensive chemistry and herbivore loads of an understory tropical shrub, Piper kelleyi

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DOI	10.1111/ele.13194
	Proximity to canopy mediates changes in the defensive chemistry and herbivore loads of an understory tropical shrub, Piper kelleyi
	Glassmire A.E.; Philbin C.; Richards L.A.; Jeffrey C.S.; Snook J.S.; Dyer L.A.
发表日期	2019
ISSN	1461023X
卷号	22 期号:2
英文摘要	Phytochemical traits are a key component of plant defense theory. Chemical ecology has been biased towards studying effects of individual metabolites even though effective plant defenses are comprised of diverse mixtures of metabolites. We tested the phytochemical landscape hypothesis, positing that trophic interactions are contingent upon their spatial location across a phytochemically diverse landscape. Specifically, intraspecific phytochemical changes associated with vertical strata in forests were hypothesised to affect herbivore communities of the neotropical shrub Piper kelleyi Tepe (Piperaceae). Using a field experiment, we found that phytochemical diversity increased with canopy height, and higher levels of phytochemical diversity located near the canopy were characterised by tradeoffs between photoactive and non-photoactive biosynthetic pathways. For understory plants closer to the ground, phytochemical diversity increased as direct light transmittance decreased, and these plants were characterised by up to 37% reductions in herbivory. Our results suggest that intraspecific phytochemical diversity structures herbivore communities across the landscape, affecting total herbivory. © 2018 John Wiley & Sons Ltd/CNRS
英文关键词	Herbivory; intraspecific phytochemical variation; light heterogeneity; phytochemical diversity; vertical stratification
语种	英语
scopus关键词	Piperaceae; phytochemical; forest; herbivory; Piper (plant); plant; Forests; Herbivory; Phytochemicals; Piper; Plants
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/121145
作者单位	Department of Entomology, East Lansing, MI 48824, United States; Chemistry Department, University of Nevada, Reno, Reno, NV 89557, United States; Ecology, Evolution, and Conservation Biology, University of Nevada, Reno, Reno, NV 89557, United States
推荐引用方式 GB/T 7714	Glassmire A.E.,Philbin C.,Richards L.A.,et al. Proximity to canopy mediates changes in the defensive chemistry and herbivore loads of an understory tropical shrub, Piper kelleyi[J],2019,22(2).
APA	Glassmire A.E.,Philbin C.,Richards L.A.,Jeffrey C.S.,Snook J.S.,&Dyer L.A..(2019).Proximity to canopy mediates changes in the defensive chemistry and herbivore loads of an understory tropical shrub, Piper kelleyi.Ecology Letters,22(2).
MLA	Glassmire A.E.,et al."Proximity to canopy mediates changes in the defensive chemistry and herbivore loads of an understory tropical shrub, Piper kelleyi".Ecology Letters 22.2(2019).