Species-specific defence responses facilitate conspecifics and inhibit heterospecifics in above-belowground herbivore interactions.

Species-specific defence responses facilitate conspecifics and inhibit heterospecifics in above-belowground herbivore interactions.
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物种特异性防御​​反应在地上地下食草动物相互作用中促进同种并抑制异种

DOI:
10.1038/ncomms5851
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发表时间:
2014-09-22
影响因子:
16.6
通讯作者:
Ding, Jianqing
Ding, Jianqing
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Huang, Wei;Siemann, Evan;Xiao, Li;Yang, Xuefang;Ding, Jianqing

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在自然界中,同种和异种的地上和地下食草动物经常一起出现,它们之间的相互作用可能决定群落结构。在这里,我们将展示如何地上成人和地下幼虫的牛脂树专家甲虫Bikasha collaris和多个异种地上物种相互作用,以确定草食动物的性能。同种地上成虫促进地下幼虫,但其他地上损害抑制幼虫或没有影响。地下幼虫增加同种成虫取食,但减少异种地上昆虫取食和丰富度。化学分析和不同酚类植物种群的实验表明,所有这些对昆虫的积极和消极影响与根和地上部单宁浓度密切相关。我们的研究结果表明,特定的植物草食动物的反应,使草食动物的促进和抑制共同发生,可能形成不同的地上和地下社区。考虑植物的种特异性反应对于区分地上和地下室的种间和种内相互作用至关重要。 目前尚不清楚食草动物如何决定群落结构。在这里,作者展示了树蚤甲虫的地上成虫和地下幼虫之间的相互作用和多个异源地上物种之间的相互作用,通过植物防御反应来确定草食动物的性能。
Conspecific and heterospecific aboveground and belowground herbivores often occur together in nature and their interactions may determine community structure. Here we show how aboveground adults and belowground larvae of the tallow tree specialist beetle Bikasha collaris and multiple heterospecific aboveground species interact to determine herbivore performance. Conspecific aboveground adults facilitate belowground larvae, but other aboveground damage inhibits larvae or has no effect. Belowground larvae increase conspecific adult feeding, but decrease heterospecific aboveground insect feeding and abundance. Chemical analyses and experiments with plant populations varying in phenolics show that all these positive and negative effects on insects are closely related to root and shoot tannin concentrations. Our results show that specific plant herbivore responses allow herbivore facilitation and inhibition to co-occur, likely shaping diverse aboveground and belowground communities. Considering species-specific responses of plants is critical for teasing apart inter- and intraspecific interactions in aboveground and belowground compartments. It is unclear how herbivores determine community structure. Here the authors show how interactions between aboveground adults and belowground larvae of a tree flea beetle and multiple heterospecific aboveground species interact via plant defence responses to determine herbivore performance.
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