DOI: 10.1111/ele.12414
Scopus记录号: 2-s2.0-84925585205
论文题名: Distinct invasion strategies operating within a natural annual plant system
作者: Lai H.R. ; Mayfield M.M. ; Gay-des-combes J.M. ; Spiegelberger T. ; Dwyer J.M.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 4 起始页码: 336
结束页码: 346
语种: 英语
英文关键词: Functional traits
; Nutrient enrichment
; Species invasions
; Trait hierarchies
; York gum woodlands
Scopus关键词: annual plant
; coexistence
; introduced species
; invasibility
; native species
; resident population
; spatiotemporal analysis
; species diversity
; Australia
; Araliaceae
; Asteraceae
; Australia
; biodiversity
; biological model
; classification
; ecosystem
; introduced species
; physiology
; plant
; Poaceae
; Portulacaceae
; quantitative trait
; Scrophulariaceae
; Araliaceae
; Asteraceae
; Biodiversity
; Ecosystem
; Introduced Species
; Models, Biological
; Plants
; Poaceae
; Portulacaceae
; Quantitative Trait, Heritable
; Scrophulariaceae
; Western Australia
英文摘要: Alien plant species are known to have a wide range of impacts on recipient communities, from resident species' exclusions to coexistence with resident species. It remains unclear; however, if this variety of impacts is due to different invader strategies, features of recipient communities or both. To test this, we examined multiple plant invasions of a single ecosystem in southwestern Australia. We used extensive community data to calculate pairwise segregation between target alien species and many co-occurring species. We related segregation to species' positions along community trait hierarchies and identified at least two distinct invasion strategies: 'exploiters' which occupy high positions along key trait hierarchies and reduce local native species diversity (particularly in nutrient-enriched situations), and 'coexisters' who occupy intermediate trait positions and have no discernable impact on native diversity. We conclude that trait hierarchies, linked to measures of competition, can provide valuable insights about the processes driving different invasion outcomes. © 2015 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/107951
Appears in Collections: 气候减缓与适应
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作者单位: School of Biological Sciences, The University of Queensland, Brisbane, QLD, Australia; School of Architecture, Civil and Environmental Engineering (ENAC), École Polytechnique Fédérale de Lausanne, Lausanne, Vaud, Switzerland; Irstea, UR EMGR, Centre de Grenoble, Saint-Martin-d'Hères Cedex, France; CSIRO Land and Water Flagship, Ecosciences Precinct, Dutton Park, Brisbane, Australia
Recommended Citation:
Lai H.R.,Mayfield M.M.,Gay-des-combes J.M.,et al. Distinct invasion strategies operating within a natural annual plant system[J]. Ecology Letters,2015-01-01,18(4)