DOI: 10.1111/ele.13528
论文题名: Intraspecific difference among herbivore lineages and their host-plant specialization drive the strength of trophic cascades
作者: Sentis A. ; Bertram R. ; Dardenne N. ; Simon J.-C. ; Magro A. ; Pujol B. ; Danchin E. ; Hemptinne J.-L.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 8 起始页码: 1242
结束页码: 1251
语种: 英语
中文关键词: Evo-to-eco
; genetic variation
; herbivory
; host-plant adaptation
; indirect effects
; tri-trophic interactions
英文关键词: evolution
; food chain
; herbivory
; nutritional status
; plant
; Biological Evolution
; Food Chain
; Herbivory
; Nutritional Status
; Plants
英文摘要: Trophic cascades – the indirect effect of predators on non-adjacent lower trophic levels – are important drivers of the structure and dynamics of ecological communities. However, the influence of intraspecific trait variation on the strength of trophic cascade remains largely unexplored, which limits our understanding of the mechanisms underlying ecological networks. Here we experimentally investigated how intraspecific difference among herbivore lineages specialized on different host plants influences trophic cascade strength in a terrestrial tri-trophic system. We found that the occurrence and strength of the trophic cascade are strongly influenced by herbivores’ lineage and host-plant specialization but are not associated with density-dependent effects mediated by the growth rate of herbivore populations. Our findings stress the importance of intraspecific heterogeneities and evolutionary specialization as drivers of trophic cascade strength and underline that intraspecific variation should not be overlooked to decipher the joint influence of evolutionary and ecological factors on the functioning of multi-trophic interactions. © 2020 John Wiley & Sons Ltd/CNRS Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166718
Appears in Collections: 气候变化与战略
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作者单位: UMR-5174, EDB, CNRS, Université Toulouse III-Paul Sabatier, IRD, Toulouse, France; UMR RECOVER, INRAE, Aix Marseille Univ, Aix-en-Provence, France; UMR 1349, IGEPP, INRAE, Université Rennes 1, Agrocampus Ouest, Le Rheu, France; PSL Université Paris: EPHE-UPVD-CNRS, USR, Uni. Perpignan, 3278 CRIOBE, France
Recommended Citation:
Sentis A.,Bertram R.,Dardenne N.,et al. Intraspecific difference among herbivore lineages and their host-plant specialization drive the strength of trophic cascades[J]. Ecology Letters,2020-01-01,23(8)