Scopus记录号: 2-s2.0-85058840407
论文题名: Evolutionary dynamics of specialisation in herbivorous stick insects
作者: Larose C. ; Rasmann S. ; Schwander T.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2019
卷: 22, 期: 2 起始页码: 354
结束页码: 364
语种: 英语
英文关键词: Chaparral biome
; host shift
; plant secondary metabolites
; plant-herbivore interaction
; realised vs. fundamental niche
; redwood
; Timema stick insect
Scopus关键词: Coniferophyta
; Hexapoda
; Magnoliophyta
; Phasmatodea
; Timema
英文摘要: Understanding the evolutionary dynamics underlying herbivorous insect mega-diversity requires investigating the ability of insects to shift and adapt to different host plants. Feeding experiments with nine related stick insect species revealed that insects retain the ability to use ancestral host plants after shifting to novel hosts, with host plant shifts generating fundamental feeding niche expansions. These expansions were, however, not accompanied by expansions of the realised feeding niches, as species on novel hosts are generally ecologically specialised. For shifts from angiosperm to chemically challenging conifer hosts, generalist fundamental feeding niches even evolved jointly with strong host plant specialisation, indicating that host plant specialisation is not driven by constraints imposed by plant chemistry. By coupling analyses of plant chemical compounds, fundamental and ecological feeding niches in multiple insect species, we provide novel insights into the evolutionary dynamics of host range expansion and contraction in herbivorous insects. © 2018 John Wiley & Sons Ltd/CNRS 资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122735
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland; Institute of Biology, University of Neuchatel, Rue Emile-Argand 11, Neuchâtel, CH-2000, Switzerland
Recommended Citation:
Larose C.,Rasmann S.,Schwander T.. Evolutionary dynamics of specialisation in herbivorous stick insects[J]. Ecology Letters,2019-01-01,22(2)