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一类食饵种群中具有传染病的捕食-被捕食系统
引用本文:Mainul Haque Joydev Chattopadhyay. 一类食饵种群中具有传染病的捕食-被捕食系统[J]. 生物数学学报, 2007, 22(1): 13-24
作者姓名:Mainul Haque Joydev Chattopadhyay
作者单位:Department of Mathematics Krishnath College Berhampore,West Bengal-742101,India,Agricultural and Ecological Research Unit,yIndian Statistical Institute,203,B.T.Road,Kolkata-700108,India
摘    要:对疾病仅在食饵种群传播的有比例依赖的捕食-被捕食系统的动力学进行了分析,给出了每个平衡点附近系统的性态,定义了决定疾病灭绝和成为地方病的阁值R_0.得出的结论是:在比例依赖的捕食-被捕食系统中,染病食饵种群可以充当一个生物控制量,以抑制种群的绝灭.

关 键 词:生态流行病学  稳定性  分支  生物控制
文章编号:1001-9626(2007)01-0013-12
收稿时间:2005-04-23
修稿时间:2005-04-23

Influence of Transmissible Disease in Prey Species of a Ratio-Dependent Predator-Prey System
Mainul Haque,Joydev Chattopadhyay. Influence of Transmissible Disease in Prey Species of a Ratio-Dependent Predator-Prey System[J]. Journal of Biomathematics, 2007, 22(1): 13-24
Authors:Mainul Haque  Joydev Chattopadhyay
Affiliation:1. Department of Mathematics,Krishnath College Berhampore,West Bengal-742101,India
2. Agricultural and Ecological Research Unit,ylndian Statistical Institute,203,B.T.Road,Kolkata-700108,India
Abstract:The present paper deals with the parametric analysis of ratio- dependent predator-prey system in which a disease is spreading among the prey species only.We have analyzed the behavior of the system around each equilibrium.Thresh- old R_0 is identified which determine when the disease dies out and when it is endemic. Our final conclusion is that introduction of infected prey species in the ratio-dependent predator-prey model may act as a biological control to prevent the population from extinction.
Keywords:Eco-epidemiology  Stability  Bifurcations  Biological control
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