DOI: 10.1111/ele.13460
论文题名: The rescue effect and inference from isolation–extinction relationships
作者: Van Schmidt N.D. ; Beissinger S.R.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期: 4 起始页码: 598
结束页码: 606
语种: 英语
中文关键词: Autologistic
; black rail
; dispersal
; isolation
; metapopulation
; occupancy
; rescue effect
; Virginia rail
; wetland
英文关键词: Laterallus
; Laterallus jamaicensis
; Rallus limicola
; animal
; biological model
; bird
; ecosystem
; population density
; population dynamics
; reproducibility
; Animals
; Birds
; Ecosystem
; Models, Biological
; Population Density
; Population Dynamics
; Reproducibility of Results
英文摘要: The rescue effect in metapopulations hypothesises that less isolated patches are unlikely to go extinct because recolonisation may occur between breeding seasons (‘recolonisation rescue’), or immigrants may sufficiently bolster population size to prevent extinction altogether (‘demographic rescue’). These mechanisms have rarely been demonstrated directly, and most evidence of the rescue effect is from relationships between isolation and extinction. We determined the frequency of recolonisation rescue for metapopulations of black rails (Laterallus jamaicensis) and Virginia rails (Rallus limicola) from occupancy surveys conducted during and between breeding seasons, and assessed the reliability of inferences about the occurrence of rescue drawn from isolation–extinction relationships, including autologistic isolation measures that corrected for unsurveyed patches and imperfect detection. Recolonisation rescue occurred at expected rates, but was elevated during periods of disturbance that resulted in non-equilibrium metapopulation dynamics. Inferences from extinction–isolation relationships were unreliable, particularly for autologistic measures and for the more vagile Virginia rail. © 2020 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/166735
Appears in Collections: 气候变化与战略
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作者单位: Department of Environmental Science, Policy, and Management, University of California – Berkeley, Berkeley, CA, United States; Museum of Vertebrate Zoology, University of California - Berkeley, Berkeley, CA, United States
Recommended Citation:
Van Schmidt N.D.,Beissinger S.R.. The rescue effect and inference from isolation–extinction relationships[J]. Ecology Letters,2020-01-01,23(4)