DOI: 10.1111/ele.12775
Scopus记录号: 2-s2.0-85019880346
论文题名: The effects of intransitive competition on coexistence
作者: Gallien L. ; Zimmermann N.E. ; Levine J.M. ; Adler P.B.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 7 起始页码: 791
结束页码: 800
语种: 英语
英文关键词: Competition network
; indirect interactions
; intransitive loop
; invasion growth rate
; niche theory
; rock-paper-scissor
; stabilising mechanism
Scopus关键词: biological invasion
; coexistence
; community dynamics
; ecological theory
; growth rate
; intraspecific competition
; network analysis
; niche partitioning
; biological model
; ecosystem
; Ecosystem
; Models, Biological
英文摘要: Coexistence theory has been developed with an almost exclusive focus on interactions between two species, often ignoring more complex and indirect interactions, such as intransitive loops, that can emerge in competition networks. In fact, intransitive competition has typically been studied in isolation from other pairwise stabilising processes, and thus little is known about how intransitivity interacts with more traditional drivers of species coexistence such as niche partitioning. To integrate intransitivity into traditional coexistence theory, we developed a metric of growth rate when rare, (Formula presented.), to identify and quantify the impact of intransitive competition against a backdrop of pairwise stabilising niche differences. Using this index with simulations of community dynamics, we demonstrate that intransitive loops can both stabilise or destabilise species coexistence, but the strength and importance of intransitive interactions are significantly affected by the length and the topology of these loops. We conclude by showing how (Formula presented.) can be used to evaluate effects of intransitivity in empirical studies. Our results emphasise the need to integrate complex mechanisms emerging from diverse interactions into our understanding of species coexistence. © 2017 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/107604
Appears in Collections: 气候减缓与适应
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作者单位: Swiss Federal Research Institute WSL, Birmensdorf, Switzerland; Deparment of Botany & Zoology, Centre for Invasion Biology, Stellenbosch University, Matieland, South Africa; Institute of Integrative Biology, ETH Zurich, Zurich, Switzerland; Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT, United States
Recommended Citation:
Gallien L.,Zimmermann N.E.,Levine J.M.,et al. The effects of intransitive competition on coexistence[J]. Ecology Letters,2017-01-01,20(7)