Impact of dispersal on the stability of metapopulations

被引：17
作者：
Tromeur, Eric [1 ]
Rudolf, Lars [1 ]
Gross, Thilo [1 ]
机构：
[1] Univ Bristol, Merchant Venturers Sch Engn, Bristol, Avon, England
来源：
JOURNAL OF THEORETICAL BIOLOGY | 2016年 / 392卷
关键词：
Generalized modelling; Density-dependent dispersal; Density-dependent settlement; Network topology; DENSITY-DEPENDENT DISPERSAL; EQUILIBRIUM STABILITY; POPULATION REGULATION; CYCLIC MAMMALS; DYNAMICS; IMMIGRATION; MODELS; MIGRATION; SYSTEM; CONSEQUENCES;
D O I：
10.1016/j.jtbi.2015.11.029
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Dispersal is a key ecological process that enables local populations to form spatially extended systems called metapopulations. In the present study, we investigate how dispersal affects the linear stability of a general single-species metapopulation model. We discuss both the influence of local within-patch dynamics and the effects of various dispersal behaviours on stability. We find that positive density dependent dispersal and positive density-dependent settlement are destabilizing dispersal behaviours while negative density-dependent dispersal and negative density-dependent settlement are stabilizing. It is also shown that dispersal has a stabilizing impact on heterogeneous metapopulations that correlates positively with the number of patches and the connectance of metapopulation networks. (C) 2015 Elsevier Ltd. All rights reserved.
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页码：1 / 11
页数：11
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