DOI: 10.1111/ele.12473
Scopus记录号: 2-s2.0-84938964354
论文题名: Positive frequency dependence undermines the success of restoration using historical disturbance regimes
作者: Crandall R. ; Knight T.M.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2015
卷: 18, 期: 9 起始页码: 883
结束页码: 891
语种: 英语
英文关键词: Aggregation
; Coexistence
; Disturbance
; Exotic species
; Negative frequency dependence
; Positive frequency dependence
; Propagule pressure
; Restoration
; Spatial model
Scopus关键词: aggregation behavior
; biological invasion
; coexistence
; community structure
; dominance
; ecological modeling
; environmental disturbance
; flood damage
; frequency analysis
; human activity
; invasive species
; native species
; plant community
; propagule
; restoration ecology
; wildfire
; biological model
; ecosystem
; ecosystem restoration
; fire
; flooding
; introduced species
; procedures
; Ecosystem
; Environmental Restoration and Remediation
; Fires
; Floods
; Introduced Species
; Models, Biological
英文摘要: Anthropogenic alterations of historical disturbance regimes (e.g. suppressing floods and wildfires) is a primary mechanism by which exotic species can come to dominate native communities. Unfortunately, reinstating historical disturbance regimes to restore native communities has achieved mixed success. The presence of positive frequency dependence (PFD) is commonly invoked to explain why exotic plant invasions are so difficult to eradicate. However, models examining PFD have not considered the effect of reintroducing disturbances. Using a spatially explicit individual-based model, we consider how magnitude and direction of frequency dependence of native and exotic species affects the success of reintroducing disturbances that favour fitness of natives over exotics. Our model illustrates why restoration is difficult; there is a narrow range of parameters that allows for native species to eliminate or coexist with exotics once they have established. Dominance by exotic invaders occurs with moderate initial frequencies of exotic individuals, aggregation of these individuals, or an exotic propagule production advantage. Reintroducing disturbances allows native dominance only when PFD of the exotic is weaker than that of the native species, disturbance intervals are short, and/or exotics are not initially frequent. Our framework provides guidelines for conditions in which the reintroduction of disturbances will effectively restore invaded habitats. © 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/107904
Appears in Collections: 气候减缓与适应
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作者单位: Department of Biology, Washington University in St. Louis, St. Louis, MO, United States; German Centre for Integrative Biodiversity Research (iDiv), Halle-Jena-Lepzig, Germany
Recommended Citation:
Crandall R.,Knight T.M.. Positive frequency dependence undermines the success of restoration using historical disturbance regimes[J]. Ecology Letters,2015-01-01,18(9)