摘要
研究一类具有Beddington-Deangelis功能性反应函数和无限时滞的周期捕食-食饵模型,且食饵具有幼年与成年两个阶段,利用比较原理获得保证系统持久性的充分必要条件.
A class of periodic predator-prey system with Beddington-Deangelis functional response function and infinite delay was investigated, where the prey had two age stages history immature and mature. Sufficient and necessary conditions which guarantee the predator and prey species to be permanence were obtained by using comparison principle.
出处
《兰州理工大学学报》
CAS
北大核心
2009年第3期134-138,共5页
Journal of Lanzhou University of Technology
基金
教育部科学技术研究重点项目(209131)
关键词
功能性反应
无限时滞
阶段结构
持久性
functional response
infinite delay
stage structure
permanence