摘要
根据生物资源管理的实际,改进了原有捕食者-食饵模型,研究了一个连续收获捕食者与脉冲存放食饵的阶段结构时滞捕食-食饵模型,得到了捕食者灭绝周期解全局吸引和系统持久的充分条件.结论说明了脉冲存放食饵对系统的持久起到了重要作用,并且为生物资源管理中的捕食-食饵系统的开发提供了策略基础.
A delayed stage-structured predator-prey model with impulsive stocking on prey and continuous harvesting on predator are studied.According to the living resources management,the predator-prey model is improved,the sufficient condition that guarantee the global attractivity of predator-exterminate periodic solution and permanence of the system is obtained.The results show that the behavior of impulsive stocking on prey plays an important role for the permanence of the system.
出处
《北华大学学报(自然科学版)》
CAS
2010年第5期385-390,共6页
Journal of Beihua University(Natural Science)
基金
国家自然科学基金资助项目(10872118)
关键词
阶段结构
脉冲存放
连续收获
全局吸引
持久
stage-structured
impulsive stocking
continuous harvesting
global attractivity
permanence