Discrete Dynamics in Nature and Society
Volume 2008 (2008), Article ID 389727, 15 pages
doi:10.1155/2008/389727
On a periodic time-dependent model of population dynamics with stage structure and impulsive effects
Kaiyuan Liu1
and Lansun Chen2
1Department of Mathematics, Anshan Normal University, Anshan 114007, China
2Department of Applied Mathematics, Dalian University of Technology, Dalian 116024, China
Abstract
We consider a periodic time-dependent predator-prey system with stage structure and impulsive harvesting, in which the prey has a life history that takes them through two stages, immature and mature. A set of sufficient and necessary conditions which guarantee the permanence of the system are obtained. Finally, we give a brief discussion of our results.