学术报告

报告题目：Effects of harvesting and noises on coral-CoTS-triton interactions

报告人：范猛 教授（东北师范大学）

邀请人：黄启华

报告时间：2024年1月21日（星期日）上午 10：00

报告地点：数学大楼912报告厅

参加人员：研究生、教师

报告摘要： A tri-trophic food chain model consisting of coral, CoTS, and triton is established in deterministic and stochastic environments to explore the effects of harvesting and environmental noises. The existence of possible steady states along with their stability of the deterministic system is rigorously discussed. The existence of the bionomic equilibrium and the optimal harvesting policy are established. The long-time behaviors of the stochastic system are explored. Numerical simulations are provided to validate and complement the theoretical results. The main findings reveal that over-harvesting of triton is not beneficial to coral reefs, modest harvesting of CoTS may promote sustainable growth of coral reef, and the presence of strong noises can lead to population extinction.

报告人简介：范猛，东北师范大学数学与统计学院二级教授、博士生导师、院长。1991-2001年在东北师范大学学习并先后获得学士、硕士和博士学位。1998年硕士毕业后留校任助教，2000任副教授，2003年任教授。长期从事常（泛函）微分方程和生物数学研究，出版学术专著1部，联合主编进展特刊和论文集7部，发表论文150余篇，主持省部级以上科研项目13项（其中国家自然科学基金项目7项），获多项省部级学术奖励和人才称号，担任四种期刊编委。曾在美国Arizona State University和Purdue University、加拿大York University和University of Alberta、日本Shimane University和Osaka Prefecture University等进行学术访问。