|本期目录/Table of Contents|

[1]付盈洁,魏春金,张树文.具有偏利关系的随机三种群模型的动力学分析[J].集美大学学报(自然科学版),2018,23(3):222-231.
　FU Yingjie,WEI Chunjin,ZHANG Shuwen.Dynamics of Stochastic Three Populations Model with Partial-advantage for Prey[J].Journal of Jimei University,2018,23(3):222-231.
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《集美大学学报（自然科学版）》[ISSN:1007-7405/CN:35-1186/N]

卷:
第23卷
期数:
2018年第3期
页码:
222-231
栏目:
数理科学与信息工程
出版日期:
2018-05-28

文章信息/Info

Title:
Dynamics of Stochastic Three Populations Model with Partial-advantage for Prey
作者:
付盈洁; 魏春金; 张树文
(集美大学理学院,福建 厦门 361021)
Author(s):
FU Yingjie; WEI Chunjin; ZHANG Shuwen
(School of Science,Jimei University,Xiamen 361021,China)
关键词:
捕食-食饵系统; 随机扰动; 均值有界; 平稳分布
Keywords:
predator-prey system; random disturbance; mean boundedness; stationary distribution
分类号:
-
DOI:
-
文献标志码:
-
摘要:
研究一类具有偏利关系的随机三种群模型。证明系统的全局正解的存在唯一性、均值有界性，给出了种群灭绝与平均持续生存的条件，并证明了平稳分布的存在性。最后由理论结果和数值模拟可知：当噪声强度较大时，种群快速灭绝；当噪声强度较小时，种群减少速度变慢，并会持续生存。
Abstract:
A stochastic three populations model with partial-advantage for prey was studied.Firstly,the existence and uniqueness of the positive global solution starting from the positive initial value and the mean boundedness of the system were proved.Secondly,the sufficient conditions for the solution of population extinction and persistence in the mean were obtained,and the existence of stationary distribution under certain conditions was proved.Finally,the theoretical results and numerical simulations showed that the population would extinct as the enhancing of noise intensity,while the reductive speed of the population would slow down as the weakening of noise intensity,and the population would be persistent

参考文献/References:

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2018-07-13