惠苍: Biodiversity partitioning of a forest with mathematics

报告时间：2024年7月27日（星期六）15:00-16:00 报告地址：腾讯会议，ID:153-290-823 报 告 人：惠苍 教授 工作单位：Stellenbosch University 举办单位：数学学院 报告简介： Biodiversity is a complex and multi-dimensional concept, with its components varying across scales and sampling efforts. Set theory provides a mathematical framework to elucidate the relationships among the scale-dependent diversity partitions. While the standard scheme of biodiversity partitioning focuses on alpha and beta components, it is insufficient to provide a complete picture of biodiversity. Instead, zeta diversity is a powerful tool that can explain patterns of biodiversity components such as turnover, occupancy frequency, endemism, distance decay, and accumulation. Zeta diversity of order n simply describes the number of species common to n sites and declines along its orders. The regression of zeta diversity components against candidate assembly processes can help tease apart drivers of species turnover and accumulation and differentiate those contributed largely by rare versus increasingly common species. Let’s walk through a forest and decipher its structure and dynamics with the lens of zeta mathematics. 报告人简介： Cang Hui is a professor of mathematical biology and holds the South African Research Chair in Mathematical and Theoretical Physical Biosciences at Stellenbosch University. He is a trustee of the International Initiative for Theoretical Ecology. He has published widely on biological invasions and ecological networks, including three authored books, Invasion Dynamics (Oxford University Press), Ecological and Evolutionary Modelling (Springer), and Invading Ecological Networks (Cambridge University Press).