2022-10-24 信息来源：腾讯会议759-981-472
举办单位：数学科学学院
负责人姓名：刘桂荣
电话：13835193583
活动主题：ecoepidemic dynamics of alveolar echinococcosis transmission with voles cont
形式：线上学术报告
活动内容摘要：
transmitted between two major hosts via a predator-prey relation, alveolar echinococcosis, threatens the health of humans and causes great economic losses in western china. the transmission complexity makes it a great challenge for effective control. in order to explore the transmission mechanism, we propose an eco-epidemiological lifecycle model incorporating interactions between the two hosts. the basic and demographic reproduction numbers are developed to characterize the transmission dynamics. our study reveals that, under effects of the energy conservation, both population can coexist via a steady state or a cyclic oscillation bifurcated from a hope bifurcation, and the disease becomes endemic simultaneously. furthermore, we study how predation rates of foxes, voles control rates, and different voles control measures work. our findings suggest that improving the control rate of voles will reduce the risk of transmission, while the high predation rate of foxes may also lead to a lower transmission risk, which is different from the predictions of previous studies. the evaluation of the three control measures on voles implies that, when the fox’s predation rate is low (high), the chemical (integrated) control will be more effective.
主讲人基本情况：
范猛，东北师范大学数学与统计学院二级教授、博士生导师。主要从事非线性动力学系统和生物数学研究，出版专著和教材各1部，发表论文百余篇，主持nsfc和省部级项目13项。获国务院政府特殊津贴、教育部新世纪优秀人才、吉林省首批长白山学者特聘教授、吉林省高级专家等荣誉；获教育部自然科学奖二等奖、第六届秦元勋数学奖、吉林省第七届青年科技奖等科技奖励；获宝钢教育奖优秀教师奖、明德教师奖、吉林省高等教育教学成果奖等教学奖励。现任4种期刊编委、中国数学会常务理事、中国数学会生物数学专业委员会副主任、吉林省数学会秘书长、吉林省工业与应用数学学会副理事长等。
听众范围：数学科学学院师生
举办时间：2022年10月22日
举办地点：腾讯会议759-981-472
报告类型：理科类