题目：Modelling Diapause in Mosquito Growth

报告人：楼一均 (香港理工大学)

地点：宁静楼110室

时间：2017年11月3日（星期五）16:00-16:50

报告摘要

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.

个人简介：

楼一均，分别于2003年和2007年在浙江师范大学获得学士和硕士学位，2010年于加拿大纽芬兰纪念大学获博士学位。2010年7月至2012年8月在加拿大约克大学做博士后研究。2012年8月底获聘为香港理工大学数学系助理教授至今。楼一均博士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。曾获加拿大MITACS博士后基金。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。

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