Metapopulations and equilibrium stability: the effects of spatial structure.
Metapopulations and equilibrium stability: the effects of spatial structure.
复制标题
集合种群和平衡稳定性：空间结构的影响。
DOI：
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发表时间：
1996
影响因子：
2
通讯作者：
M. Hassell
中科院分区：
文献类型：
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作者：
Pejman Rohani;Pejman Rohani;Robert M. May;Robert M. May;M. Hassell
最近，集合种群的动态引起了人们极大的兴趣，其中一些当地种群通过扩散耦合。运动对于局部不稳定斑块集合的持续性的重要性已经在许多研究中得到证实。在本文中，我们提出了分析和模拟结果的影响，空间结构上的平衡稳定性的个人群体。我们的结论是，对于一般的单物种和两个物种的竞争模型，在一个生物合理的方式引入的空间维度的整体稳定性没有影响。然而，在寄主-寄生物模型中，强的寄主或寄生物过度扩散可能是不稳定的。
Recently, there has been a great deal of interest in the dynamics of metapopulations, where a number of local populations are coupled via dispersal. The importance of movement for the persistence of an ensemble of locally unstable patches has been established in many studies. In this paper, we present analytical and simulation results concerning the effects of spatial structure on the equilibrium stability of individual populations. We conclude that for general single-species and two-species competition models, the introduction of the spatial dimension in a biologically sensible way has no effect on the overall stability properties. In host-parasitoid models, however, strong host or parasitoid over-dispersal may be destabilizing.