关于美国路易斯安那大学汪翔升教授来校讲学的通知

应数学与计算科学学院、广西应用数学中心（桂林电子科技大学）及广西高校数据分析与计算重点实验室邀请，美国路易斯安那大学汪翔升教授将于2026年6月29日来校讲学，欢迎全校师生踊跃参加。报告具体安排如下：

报告主题：Coexistence or extinction: Dynamics of multiple lizard species with competition, dispersal and intraguild predation

报告人：汪翔升教授

时间：2026年6月29日（星期一）下午15:30

地点：花江慧谷4号楼310报告厅

讲座摘要：Biological invasions significantly impact native ecosystems, altering ecological processes and community behaviors through predation and competition. The introduction of non-native species can lead to either coexistence or extinction within local habitats. Our research develops a lizard population model that integrates aspects of competition, intraguild predation, and the dispersal behavior of intraguild prey. We analyze the model to determine the existence and stability of various ecological equilibria, uncovering the potential for bistability under certain conditions. By employing the dispersal rate as a bifurcation parameter, we reveal complex bifurcation dynamics associated with the positive equilibrium. Additionally, we conduct a two-parameter bifurcation analysis to investigate the combined impact of dispersal and intraguild predation on ecological structures. Our findings indicate that intraguild predation not only influences the movement patterns of brown anoles but also plays a crucial role in sustaining the coexistence of different lizard species in diverse habitats.

报告人简介：汪翔升于2009年获香港城市大学博士学位，目前任职于美国路易斯安那大学拉法叶分校教授（University of Louisiana at Lafayette）。主要研究领域包括渐近分析、微分动力系统与生物数学。迄今已在Adv. Math.、J. Math. Pures Appl.、SIAM J. Control Optim.、SIAM J. Appl. Math.、Stud. Appl. Math.、J. Differential Equations、J. Dyn. Differ. Equ.、J. Math. Biol.、Bull. Math. Biol.、J. Theor. Biol.等学术期刊上发表论文七十余篇。