Plant diversification promotes biocontrol services in peach orchards by shaping the ecological niches of insect herbivores and their natural enemies

文献类型： 外文期刊

第一作者： Wan, Nian-Feng

作者： Wan, Nian-Feng;Ji, Xiang-Yun;Cai, You-Ming;Jiang, Jie-Xian;Wan, Nian-Feng;Deng, Jian-Yu;Kiaer, Lars Podenphant;Wan, Nian-Feng;Ji, Xiang-Yun;Wan, Nian-Feng;Deng, Jian-Yu

作者机构：

关键词： Ecological niche; Ecological indicator; Insect herbivore; Natural enemy; Orthogonal partial least squares-discriminant analysis; Peach orchards; Pest management

期刊名称：ECOLOGICAL INDICATORS （ 影响因子：4.958； 五年影响因子：5.846 ）

ISSN： 1470-160X

年卷期： 2019 年 99 卷

页码：

收录情况： SCI

摘要： Ecological niche indicators have been scarcely adopted to assess the biological control of insect herbivores by their natural enemies. We hypothesize that plant diversification promotes the biocontrol services by narrowing the niches of herbivores and broadening the niches of natural enemies. In a large-scale experiment, we found that the abundance of natural enemies was increased by 38.1%, and the abundance of insect herbivores was decreased by 16.9% in peach orchards with plant diversification (treatment) compared to ones with monoculture (control). Stratified sampling indicated that the horizontal, vertical, temporal and three-dimensional niches of natural enemies were generally broader while these niches of herbivores were narrower. Additionally, diverse plants give rise to an increase in the temporal synchrony and spatial similarity of the herbivores and natural enemies in peach orchards. Our study reveals that plant diversification promotes the biocontrol services by shaping the niche of herbivores and natural enemies, and provides a new assessment method to understand the biodiversity-niche-ecosystem management interactions.

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