报告题目：Dynamics of a ratio-dependent population model for Green Sea Turtle with age structure

报告人：原三领 教授 上海理工大学

照片：

邀请人：白振国

报告时间：2021年12月19日（周日）14：30-15：30

腾讯会议ID：739 167 771

报告人简介：

原三领，教授，博士生导师，上海理工大学应用数学学科负责人，中国数学会生物数学学会常务理事，美国《Mathematical Reviews》评论员。研究方向为：微分方程与动力系统、生物数学。曾先后主持4项国家自然科学基金面上项目、3项上海市教委项目的研究工作。研究内容涉及微分方程与动力系统、种群动力学、流行病动力学、海洋生态学以及生物化学工程等诸多领域，具有多学科交叉的特点。曾多次受邀到国内和国际多所高校进行合作研究和学术交流。已在Journal of Differential Equations、Journal of Mathematical Biology、Bulletin of Mathematical Biology、Journal of Theoretical Biology等国内外重要学术刊物上发表SCI论文90余篇。

报告摘要：

In this paper, in order to study the population dynamics of the green sea turtles and understand the dynamics of the sex ratio, we establish a stage-structured model by incorporating TSD and the ratio dependent Holling III functional response in the reproduction process of the green sea turtle population. The effects of incubation temperature and sex ratio deviation on persistence of the population are captured by the sole basic reproduction number. The persistent mode can be either a stable equilibrium or periodicoscillations. Our research in the paper is in favor of elevating sexual encounter rates, reducing the searching time for males and increasing survival odds from baby state into adult in order to maintain sustainability of the green sea turtles.