摘要
讨论了两相异斑块中 n种群扩散 Lotka- Volterra树系统 .通过引入“种群度”的概念 ,给出了一组判断该系统是持续生存的。
By introducing a concept, called the de gree of a species, a set of sufficient conditions for the permanence of n-species diffusive Lotka-Volterra tree systems in two heterogeneous patches is obtained. The criteria are in explicit forms of the parameters and thus are easi ly verifiable.
出处
《信阳师范学院学报（自然科学版）》
CAS
2000年第3期257-262,共6页
Journal of Xinyang Normal University(Natural Science Edition)
基金
Foundation item:Supported by the Nature Science Foundation of Henan province(9840 51 2 0 0 )
关键词
持续生存
扩散
种群度
斑块环境
L-V树系统
permanence
diffusion
Lotka-Volterra tree system
degree of a species
patches
