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      Theoretical Studies on the Effects of Dispersal Corridors on the Permanence of Discrete Predator-Prey Models in Patchy Environment

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      Theoretical studies on the effects of dispersal corridors on the permanence of discrete predator-prey models in patchy environment.pdf (2.305Mb)
      Author
      Wu, Chunqing
      Fan, Shengming
      Wong, Patricia Jia Yiing
      Date of Issue
      2014
      School
      School of Electrical and Electronic Engineering
      Version
      Published version
      Abstract
      We study two discrete predator-prey models in patchy environment, one without dispersal corridors and one with dispersal corridors. Dispersal corridors are passes that allow the migration of species from one patch to another and their existence may influence the permanence of the model. We will offer sufficient conditions to guarantee the permanence of the two predator-prey models. By comparing the two permanence criteria, we discuss the effects of dispersal corridors on the permanence of the predator-prey model. It is found that the dispersion of the prey from one patch to another is helpful to the permanence of the prey if the population growth of the prey is density dependent; however, this dispersion of the prey could be disadvantageous or advantageous to the permanence of the predator. Five numerical examples are presented to confirm the theoretical results obtained and to illustrate the effects of dispersal corridors on the permanence of the predator-prey model.
      Type
      Journal Article
      Series/Journal Title
      Abstract and Applied Analysis
      Rights
      © 2014 Chunqing Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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      • EEE Journal Articles
      http://dx.doi.org/10.1155/2014/140902
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