Spread rates of a juvenile-adult population in constant and temporally variable environments

发布时间：2020-11-03 作者：浏览次数：

Speaker:	黄启华	DateTime:	2020年11月14日（周六）上午:10:00-11:30
Brief Introduction to Speaker: 黄启华，西南大学数学与统计学院教授，博士生导师。主要研究方向为生物数学、偏微分方程和数值分析。科研成果主要发表在应用数学期刊 SIAM Journal on Applied Mathematics等，生物数学期刊 Journal of Mathematical Biology 等，以及理论生态学期刊 Theoretical Ecology等。目前正主持国家自然科学基金面上项目和重庆市留学人员回国创新支持计划重点项目各一项。		Place:	腾讯会议（会议号请联系黄继才老师索取）
Abstract:The question of how growth,dispersal,and environmental factors affect the persistence and spread of an invasive species is of great importance in spatial ecology.Motivated by the fact that in a species, different development stages may have different vital rates and dispersal characteristics, we propose and study a reaction-diffusion juvenile-adult model,which is a natural extension of the classical Fisher's equation.We investigate the spread rates of the population if persistent.By comparing our juvenile-adult model with the physically unstructured Fisher model,we find that Fisher equation can be approximated by our juvenile-adult model in several ways.The theory developed here can provide effective strategies to control the spread of invasive species.