期刊
ECOLOGY LETTERS
卷 18, 期 9, 页码 927-936出版社
WILEY
DOI: 10.1111/ele.12470
关键词
Brassica; community ecology; induced direct and indirect plant defences; multitrophic interactions; parasitoids; trait-mediated interactions
类别
资金
- Netherlands Organization for Scientific Research (NWO/ALW VENI) [863.09.002]
- Netherlands Organization for Scientific Research (NWO/ALW) [820.01.022]
- German Research Foundation [CRC973]
- European Community [329648]
Induction of plant defences, specifically in response to herbivore attack, can save costs that would otherwise be needed to maintain defences even in the absence of herbivores. However, plants may suffer considerable damage during the time required to mount these defences against an attacker. This could be resolved if plants could respond to early cues, such as egg deposition, that reliably indicate future herbivory. We tested this hypothesis in a field experiment and found that egg deposition by the butterfly Pieris brassicae on black mustard (Brassica nigra) induced a plant response that negatively affected feeding caterpillars. The effect cascaded up to the third and fourth trophic levels (larval parasitoids and hyperparasitoids) by affecting the parasitisation rate and parasitoid performance. Overall, the defences induced by egg deposition had a positive effect on plant seed production and may therefore play an important role in the evolution of plant resistance to herbivores.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据