摘要
考虑一类随机三种群捕食模型的持续性与灭绝性,该系统两个具有互惠关系的食饵种群被一个捕食者种群捕食。在一些假设条件下,利用伊藤公式,建立种群持续生存与灭绝的充分性条件。数值模拟验证和补充了理论结果。
The persistence and extinction for a stochastic three species predation model is considered. In this system, two preys cooperated with each other are caught by the third species. Under some assumptions, by using Itos formula, a sufficient condition of the persistence and extinction for the species is established. Some numerical simulations are carried out to support and supply the theoretical results.
出处
《黑龙江大学自然科学学报》
CAS
北大核心
2017年第1期19-30,共12页
Journal of Natural Science of Heilongjiang University
基金
国家自然科学基金资助项目(11201128)
黑龙江省教育厅科学技术研究项目(12541621)
关键词
随机捕食模型
食饵互惠
持续生存
灭绝
stochastic predation model
prey mutualism
persistence
extinction
