Key Lab of Network Security and Cryptology, Fujian Normal University, Fuzhou, Fujian 350007, China
Copyright © 2010 Xiangzeng Kong et al. This is an open access article distributed under the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
We propose and study the permanence of the following periodic Holling
III predator-prey system with stage structure for prey and both two predators which
consume immature prey. Sufficient and necessary conditions which guarantee the
predator and the prey species to be permanent are obtained.