摘要
主要研究了两个捕食者作用于同一食饵的捕食模型。应用微分方程定性理论,对捕食模型中存在极限环的情况进行了讨论,用MATLAB在相平面上模拟出系统的极限环。此时该体系状态的发展呈现周期振荡趋势,从而揭示出捕食模型的耗散结构特征。
A prey-predator model for both predators that can eat the same prey was studied. The existence of limit cycle in the model was discussed by the qualitative theory of differential equation, and the limit cycle was simulated using MATLAB in the phase plane. The system shows a periodic oscillation. Thus, it reveals the dissipative structure characteristic of the model based on trophodynamics.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2008年第4期72-74,共3页
Journal of Northeast Forestry University
基金
东北林业大学校基金项目
关键词
耗散结构
捕食模型
极限环
MATLAB
Dissipative structures
Prey-predator models
Limit-cycles
MATLAB
