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Extinction of two Populations in Polluted Environment
Lai Fei, Ma Zhi'en, Zhou Dianmin, Wang Qing
(Xi'an Jiaotong University, Xi'an 710049,China)
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Abstract: Predator absorbing toxin from prey is considered to be a nonatutonomous preduator-prey system. A nonautonomous predator-prey system is considered. The obtained result yields a threshold between the permancence in the mean and extinction of two populations.
Keywords: permanence;extinction;nonautonomous;population