Predator–prey system with multiple delays: prey’s countermeasures against juvenile predators in the predator–prey conflict

2021 ◽  
Author(s):  
Rajat Kaushik ◽  
Sandip Banerjee
Keyword(s):  
Multiple Delays ◽  
Predator Prey ◽  
Prey System

scholarly journals Average Conditions for the Permanence of a Bounded Discrete Predator-Prey System

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Yong-Hong Fan ◽  
Lin-Lin Wang
Keyword(s):  
Functional Response ◽  
Lower Bounds ◽  
Population Models ◽  
Upper And Lower Bounds ◽  
Multiple Delays ◽  
Type Ii ◽  
Predator Prey ◽  
Prey System ◽  
Bounded System ◽  
Type Ii Functional Response

Average conditions are obtained for the permanence of a discrete bounded system with Holling type II functional responseu(n+1)=u(n)exp{a(n)-b(n)u(n)-c(n)v(n)/(u(n)+m(n)v(n))},v(n+1)=v(n)exp{-d(n)+e(n)u(n)/(u(n)+m(n)v(n))}.The method involves the application of estimates of uniform upper and lower bounds of solutions. When these results are applied to some special delay population models with multiple delays, some new results are obtained and some known results are generalized.

scholarly journals Stability and Hopf Bifurcation in a Modified Holling-Tanner Predator-Prey System with Multiple Delays

2012 ◽  
Vol 2012 ◽  
pp. 1-19 ◽  
Author(s):  
Zizhen Zhang ◽  
Huizhong Yang ◽  
Juan Liu
Keyword(s):  
Hopf Bifurcation ◽  
Periodic Solutions ◽  
Local Stability ◽  
Center Manifold ◽  
Multiple Delays ◽  
Center Manifold Theory ◽  
Predator Prey ◽  
Prey System ◽  
Existence Of Periodic Solutions ◽  
Manifold Theory

A modified Holling-Tanner predator-prey system with multiple delays is investigated. By analyzing the associated characteristic equation, the local stability and the existence of periodic solutions via Hopf bifurcation with respect to both delays are established. Direction and stability of the periodic solutions are obtained by using normal form and center manifold theory. Finally, numerical simulations are carried out to substantiate the analytical results.

scholarly journals Stability and Hopf Bifurcation Analysis for a Gause-Type Predator-Prey System with Multiple Delays

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Juan Liu ◽  
Changwei Sun ◽  
Yimin Li
Keyword(s):  
Hopf Bifurcation ◽  
Sufficient Conditions ◽  
Multiple Delays ◽  
Normal Form Theory ◽  
Predator Prey ◽  
Prey System ◽  
Form Theory ◽  
Two Delays ◽  
The Stability ◽  
Theoretical Results

This paper is concerned with a Gause-type predator-prey system with two delays. Firstly, we study the stability and the existence of Hopf bifurcation at the coexistence equilibrium by analyzing the distribution of the roots of the associated characteristic equation. A group of sufficient conditions for the existence of Hopf bifurcation is obtained. Secondly, an explicit formula for determining the stability and the direction of periodic solutions that bifurcate from Hopf bifurcation is derived by using the normal form theory and center manifold argument. Finally, some numerical simulations are carried out to illustrate the main theoretical results.

Hopf bifurcations in a predator–prey system with multiple delays

2009 ◽  
Vol 42 (2) ◽  
pp. 1273-1285 ◽  
Author(s):  
Guang-Ping Hu ◽  
Wan-Tong Li ◽  
Xiang-Ping Yan
Keyword(s):  
Hopf Bifurcations ◽  
Multiple Delays ◽  
Predator Prey ◽  
Prey System
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