气候变化领域集成服务门户(CCPortal): The rescue effect and inference from isolation

CCPortal

DOI	10.1111/ele.13460
	The rescue effect and inference from isolation–extinction relationships
	Van Schmidt N.D.; Beissinger S.R.
发表日期	2020
ISSN	1461023X
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
英文关键词	Autologistic; black rail; dispersal; isolation; metapopulation; occupancy; rescue effect; Virginia rail; wetland
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120966
作者单位	Department of Environmental Science, Policy, and Management, University of California – Berkeley, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Van Schmidt N.D.,Beissinger S.R.. The rescue effect and inference from isolation–extinction relationships[J],2020.
APA	Van Schmidt N.D.,&Beissinger S.R..(2020).The rescue effect and inference from isolation–extinction relationships.Ecology Letters.
MLA	Van Schmidt N.D.,et al."The rescue effect and inference from isolation–extinction relationships".Ecology Letters (2020).