摘要
建立具两系统切换脉冲单种群动力学模型,利用离散动力系统频闪映射理论,得到系统种群灭绝与系统种群持续生存的控制阈值.结果表明脉冲收获与冬眠期对于系统种群持久起着重要作用,从而为现实的生物资源管理与生物多样性保护提供了可靠的策略依据.
In this paper,we construct a single population dynamical model with two switched system impulses.By the discrete dynamical system determined by the stroboscopic map,we obtain the controlling thresholds of the permanence and extinction of this system.The results indicate that impulsive harvesting and hibernant play important roles in the permanence of population,and these also provide reliable tactic basis for the practical biological resource management.
出处
《生物数学学报》
2014年第2期328-332,共5页
Journal of Biomathematics
基金
国家自然科学基金项目(11361104
10961008)
关键词
切换系统
脉冲出生
脉冲收获
持续生存
Switched system
Impulsive birth
Impulsive harvesting
Permanence
