摘要
近年来依赖比率的捕食与被捕食模型已引起了生态学者和生物数学研究者的密切注意 ,这是因为它们比传统的模型更加接近实际情形 .本文研究了依赖比率的捕食与被捕食系统的全局定性性态 。
Recently ratio dependent predator prey models have been paid close attention by many ecologists and biomathematical researchers because they are preferable to predator prey interaction where predation involves searching process. In this paper we consider the global qualitative behavior of a ratio dependent predator prey system, which both predator and prey have density restrict by means of Poincare Bendixson theorem and Dulac criterion. We also give sufficient conditions for all the steady states to be existed.
出处
《河南师范大学学报（自然科学版）》
CAS
CSCD
2003年第3期7-13,共7页
Journal of Henan Normal University(Natural Science Edition)
基金
Supported by Natural Science Foundation of Henan Province
