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数学与系统科学学院学术报告预告

2018-05-16   浏览:

报告时间:2018年5月18日(周五)下午4:30-5:30

地点:校本部第一教学楼1211室

报告题目:Modelling diapause in mosquito growth

内容摘要:Diapause (or named as dormancy traditionally) as a process of physiological rest is widespread in insects and other invertebrate organisms, which serves as a key survival mechanism in response to adverse environmental conditions. In this paper, a novel modelling framework is proposed to investigate the effects of diapause on population growth, where diapause period is taken as an independent dynamic process, during which the population dynamics is completely different from that in the normal developmental and post-diapause periods. To explicitly describe population growth with different diapausing stages, either immature or adult ones, two different delay differential equation models are constructed with an emphasis on mosquitoes. These two models can be further unified into one with different death rates during the diapause period. In addition to the theoretical analysis, numerical simulations are performed to investigate the seasonality of population abundances of two temperate mosquito species and the sensitivity analysis of the diapause-related parameters, which validate theoretical models and further identify the key role on population persistence that diapause plays.

报告人简介:楼一均,香港理工大学助理教授。2010年于纽芬兰纪念大学(Memorial University of Newfoundland)获得博士学位,2010年至2012年在York大学做博士后研究工作。主要研究方向为应用动力系统及其在复杂生物系统的应用。论文发表在Journal of Nonlinear Science, SIAM Journal of Applied Mathematics, Journal of Differential Equations, Proceedings of the Royal Society of Edinburgh-A, Journal of Mathematical Biology, Scientific Reports, Chaos, Bulletin of Mathematical Biology, Journal of Theoretical Biology, Ecological Complexity 等主流应用数学以及理论生态学杂志。近年来对具有季节驱动或年龄结构的复杂系统以及复杂网络上的疾病传播动力学感兴趣。近期研究受国家自然科学基金和香港特别行政区大学教育资助委员会资助。

欢迎对微分动力系统、生物数学感兴趣的同学和教师参加!


数学与系统科学学院

2018年5月15日