具有放牧率的某些概周期生态模型

Some Almost Periodic Biological Models with Grazing Rates

文［１］研究了具有放牧率的周期生态模型的周期解的存在性、唯一性与稳定性等问题．本文考虑更加广泛的生态模型，即具有放牧率的概周期生态系统的概周期解的存在性、稳定性，通过利用指数型二分性和不动点方法，得到一些新结果．

The existence, uniqueness and stability of periodic solutions to some periodic biological models with grazing rates have been researched in paper [1]. In this paper we investigate the existence and stability of almost periodic solutions of some generalized biological models. By using the exponential dichotomy and the fixed point theorem, some new results are obtained.