题目：Modeling the Growth, Invasion and Competition of Aedes Mosquitoes
时间：2023年5月4日，15:00-16:30
地点： 信息352
主讲人: 阮世贵教授，美国迈阿密大学
摘要：The Aedes mosquitoes, in particular Aedes aegypti and Aedes albopictus, are the primary vectors that transmit several arboviral diseases, including chikungunya fever, dengue fever, yellow fever, and Zika. Recently, the world has been experiencing a series of major outbreaks of these vector-borne diseases (for example, the 2016 Zika outbreak in Florida, etc.). In order to study the transmission dynamics of these vector-borne diseases, it is very important and necessary to understand the population dynamics, current distributions and movements of Aedes mosquitoes for successful surveillance and control programs. In this talk, we will introduce some of our recent studies on modeling the population dynamics of Aedes mosquitoes, the invasion of Aedes albopictus mosquitoes, and the competition between Aedes aegypti and Aedes Albopictus mosquitoes in Florida. In particular, we propose a competition model with road-field diffusion in which the invasive population not only disperses in the interior of the spatial domain but also moves faster on the boundary of the domain. Both strong-weak and weak-weak competitions are discussed. It is shown that the asymptotic spreading speed of the wave fronts is increasing only if the road diffusion rate is greater than the field diffusion rate. Numerical simulations are presented to illustrate our analytical results and to explain the current estimated distributions of these two mosquito species in Florida.
主讲人简介：阮士贵教授1992年获得加拿大阿尔伯特大学数学系博士学位，在加拿大菲尔兹数学研究所和麦克马斯特大学数学系做博士后科研工作。其后担任加拿大道尔毫斯大学数学系助理教授、副教授，现为美国迈阿密大学数学系终身教授。主要研究领域是动力系统和微分方程及其在生物和医学中的应用，在包括PNAS、Memoirs Amer Math Soc、J Math Pures Appl、Math Ann、SIAM J Math Anal等学术期刊上发表论文两百多篇，受到国际同行的关注与大量引用，2014和2015连续两年被汤森路透集团列为全球高被引科学家。担任一些重要学术期刊如《Bulletin of Mathematical Biology》、《DCDS-B》、《Journal of Mathematical Biology》、《Mathematical Biosciences》等编委，是《Mathematical Biosciences and Engineering》的主编（数学）。作为项目负责人多次获得美国国家卫生研究院（NIH）、美国国家科学基金（NSF）、国家自然科学基金会资助。2013年获得海外及港澳学者合作研究基金资助。
欢迎广大师生参加！