A Predator-Prey Model Incorporating Prey Refuge and Allee Effect

Abstract:

The effect of refuge used by prey has a stabilizing impact on population dynamics and the effect of time delay has its destabilizing influences. Little attention has been paid to the combined effects of prey refuge and time delay on the dynamic consequences of the predator-prey interaction. Here, a predator-prey model with a class of functional responses was studied by using the analytical approach. The refuge is considered as protecting a constant proportion of prey and the discrete time delay is the gestation period. We evaluated both effects with regard to the local stability of the interior equilibrium point of the considered model. The results showed that the effect of prey refuge has stronger influences than that of time delay on the considered model when the time lag is smaller than the threshold. However, if the time lag is larger than the threshold, the effect of time delay has stronger influences than that of refuge used by prey.

• Periodical: Applied Mechanics and Materials (Volumes 713-715)
• Pages: 1534-1539
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.713-715.1534
• Online since: January 2015
• Authors: Rui Ning Fan*
• Keywords: Discrete Time Delay, Population Dynamic, Predator-Prey

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