globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12957
Scopus记录号: 2-s2.0-85046811452
论文题名:
Symmetric assembly and disassembly processes in an ecological network
作者: Tylianakis J.M.; Martínez-García L.B.; Richardson S.J.; Peltzer D.A.; Dickie I.A.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2018
卷: 21, 期:6
起始页码: 896
结束页码: 904
语种: 英语
英文关键词: Community assembly ; ecosystem development ; mutualist network ; mycorrhizal symbiosis ; preferential attachment ; retrogression ; succession
英文摘要: The processes whereby ecological networks emerge, persist and decay throughout ecosystem development are largely unknown. Here we study networks of plant and arbuscular mycorrhizal fungal (AMF) communities along a 120 000 year soil chronosequence, as they undergo assembly (progression) and then disassembly (retrogression). We found that network assembly and disassembly were symmetrical, self-reinforcing processes that together were capable of generating key attributes of network architecture. Plant and AMF species that had short indirect paths to others in the community (i.e. high centrality), rather than many direct interaction partners (i.e. high degree), were best able to attract new interaction partners and, in the case of AMF species, also to retain existing interactions with plants during retrogression. We then show using simulations that these non-random patterns of attachment and detachment promote nestedness of the network. These results have implications for predicting extinction sequences, identifying focal points for invasions and suggesting trajectories for restoration. © 2018 John Wiley & Sons Ltd/CNRS
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107449
Appears in Collections:气候减缓与适应

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作者单位: Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand; Department of Life Sciences, Imperial College London, Silwood Park Campus, Buckhurst Road, Ascot, Berkshire, United Kingdom; Bio-protection Research Centre, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand; Landcare Research, PO Box 69040, Lincoln, New Zealand; Department of Soil Quality, Wageningen University, P.O. Box 47, Wageningen, Netherlands

Recommended Citation:
Tylianakis J.M.,Martínez-García L.B.,Richardson S.J.,et al. Symmetric assembly and disassembly processes in an ecological network[J]. Ecology Letters,2018-01-01,21(6)
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