In this paper, a predator-prey model with logistic growth rate in the prey population was proposed. It included an SIS infection in the prey and predator population. The stability of the positive equilibrium point, the existence of Hopf and transcritical bifurcation with parameter $a$ were investigated, where $a$ was regarded as predation rate. It was found that when the parameter $a$ passed through a critical value, stability changed and Hopf bifurcation occured.
Biologically, the population is positive and bounded. In the present article, it was also shown that the model was bounded and that it had the positive solution. Moreover, the current researchers came to the conclusion that althought the disease was present in the system, none of the species would be extinct. In other words, the system was persistent.
Important thresholds, R_{0}, R_{1} and R_{2}, were identified in the study. This theoretical study indicated that under certain conditions of R_{0}, R_{1} and R_{2}, the disease remained in the system or disappeared.
Ghasemabadi, A., Rahmani Doust, M. (2019). Investigating the dynamics of Lotka-Volterra model with disease in the prey and predator species. International Journal of Nonlinear Analysis and Applications, (), -. doi: 10.22075/ijnaa.2019.15881.1832
MLA
Atena Ghasemabadi; Mohammad Hossien Rahmani Doust. "Investigating the dynamics of Lotka-Volterra model with disease in the prey and predator species". International Journal of Nonlinear Analysis and Applications, , , 2019, -. doi: 10.22075/ijnaa.2019.15881.1832
HARVARD
Ghasemabadi, A., Rahmani Doust, M. (2019). 'Investigating the dynamics of Lotka-Volterra model with disease in the prey and predator species', International Journal of Nonlinear Analysis and Applications, (), pp. -. doi: 10.22075/ijnaa.2019.15881.1832
VANCOUVER
Ghasemabadi, A., Rahmani Doust, M. Investigating the dynamics of Lotka-Volterra model with disease in the prey and predator species. International Journal of Nonlinear Analysis and Applications, 2019; (): -. doi: 10.22075/ijnaa.2019.15881.1832
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