The temporal dimension of species interactions at multiple scales

报告人：Hengxing Zou

日期:  2023年12月29日(星期五)

时间:  10:00– 11:00

地点：城环学院260

报告内容简介

Time structures ecological communities. The strength and outcomes of species interactions are often determined by the temporal sequence and interval of species arrival, a phenomenon termed priority effects. As climate change shifts species timing (phenology) worldwide, we need a general theoretical framework for the diverse biological mechanisms underlying priority effects among ecosystems. To provide a widely applicable framework of priority effects, I categorize them into two types based on their biological mechanisms. I then illustrate how each type influences long-term outcomes of pairwise competition in a seasonal community. Scaling up, I show that how biodiversity changes with dispersal is determined by the type of priority effects in metacommunities. Finally, I extend priority effects beyond pairwise interaction with a multispecies model of plant-soil feedback. Together, these works provide a new direction in studying temporal processes in complex communities, laying the groundwork for better understanding and predicting biodiversity in an ever-changing world.

报告人简介

Hengxing Zou is a 5th-year PhD Candidate at Rice University. Before joining Dr. Volker Rudolf’s lab at Rice, he obtained a Bachelor of Science from the University of Chicago in 2019. His research focuses on how the relative timing of species affects their interactions and community dynamics.