title: The stage-structured predator-prey model and optimal harvesting policy.
abstract: In this paper, we establish a mathematical model of two species with stage structure and the relation of predator-prey, to obtain the necessary and sufficient condition for the permanence of two species and the extinction of one species or two species. We also obtain the optimal harvesting policy and the threshold of the harvesting for sustainable development.
authors: Department of Mathematics, Central China Normal University, Wuhan 430079, People's Republic of China. zhangxa@math08.math.ac.cn
authors: X A
authors: XA
authors: Zhang
authors: L
authors: L
authors: Chen
authors: A U
authors: AU
authors: Neumann
mesh_terms: D000489:Alligators and Crocodiles / Q000502:physiology*; D000818:Animals; D002681:China; D003247:Conservation of Natural Resources; D008954:Models, Biological; D011235:Predatory Behavior