研究了一类具有扩散的基于比率的食饵-捕食系统.首先讨论了系统正平衡点的个数,得到它至多存在一个正平衡点.初步讨论了扩散对系统的正平衡点个数的影响,接着讨论了它的持久性并得到了一些新的条件,改进了文献中的一些主要结果。
A kind of dispersal ratio-dependent predator-prey model is studied. We first discuss the number of equilibria and conclude it can't exist more than one equlibrium. Meanwhile we discuss the impact of dispersal on the number of positive equlibrium. It's permanence is studied further and we get some new conditions which can improve the main result of .