講座題目：Dynamics of a ratio-dependent population model for Green Sea Turtle with age structure

講座專家：原三領(lǐng)（上海理工大學(xué)教授/博士生導(dǎo)師）

講座對象：學(xué)院教師、碩士生、本科生

講座時(shí)間：2021年5月28日 下午

講座地點(diǎn)：數(shù)學(xué)與統(tǒng)計(jì)學(xué)院3401

內(nèi)容摘要：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 periodic oscillations. 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.

專家簡介：原三領(lǐng),，教授,，博士生導(dǎo)師，上海理工大學(xué)應(yīng)用數(shù)學(xué)學(xué)科負(fù)責(zé)人,，中國數(shù)學(xué)會生物數(shù)學(xué)學(xué)會常務(wù)理事,，美國《Mathematical Reviews》評論員。研究方向?yàn)椋何⒎址匠膛c動力系統(tǒng),、生物數(shù)學(xué),。曾先后主持4項(xiàng)國家自然科學(xué)基金面上項(xiàng)目、3項(xiàng)上海市教委項(xiàng)目的研究工作,。研究內(nèi)容涉及微分方程與動力系統(tǒng),、種群動力學(xué)、流行病動力學(xué),、海洋生態(tài)學(xué)以及生物化學(xué)工程等諸多領(lǐng)域,，具有多學(xué)科交叉的特點(diǎn)。曾多次受邀到國內(nèi)和國際多所高校進(jìn)行合作研究和學(xué)術(shù)交流,。已在Journal of Differential Equations,、Journal of Mathematical Biology、Bulletin of Mathematical Biology,、Journal of Theoretical Biology等國內(nèi)外重要學(xué)術(shù)刊物上發(fā)表SCI論文90余篇,。