摘要
在生物种群不同的生长阶段,虽然Volterra模型可以解释一些现象,但多数食饵一捕食者系统都观察不到此模型显示的那种周期震荡,而是趋于某种平衡状态,即系统存在稳定点.笔者在Voherra模型上考虑自身阻滞作用并加入了Losistic项来讨论这一状况.
In the population of different growth stage, although Voherra model can explain some phenomena, most diet - predators system cannot watch this model showed that the sort of cycle concussion, but tend to a state of equilibrium, namely system exists stable point. Based on Voherra model considering their own retardation and joined the Logistic item to discuss the situation.
出处
《山东师范大学学报(自然科学版)》
CAS
2012年第4期25-27,共3页
Journal of Shandong Normal University(Natural Science)
基金
国家自然科学基金资助项目(11271235)
山西省自然科学基金项目资助项目(NO.2008011002-1)
山西省高校科技研究开发项目(NO.20101109
20111020).
关键词
生物种群
模型
微分方程
biological populations
model
differential equation