Wolbachia spread dynamics in stochastic environments

讲座时间 Datetime: 2022年6月12日，星期日，  14:30-16:00

地点 Venue: 腾讯线上会议：359688521

 主持人 Host：唐德

报告人 Speaker:庾建设   

单位 Affiliation:广州大学

报告摘要 Abstract:

A novel strategy for mosquito-borne disease control is to use the bacterium Wolbachia to block virus transmission. It requires releasing Wolbachia-infected mosquitoes to exceed a threshold level. Since an accurate forecast for temperature and rainfall, the major environmental conditions regulating the mosquito dynamics, is often not available over a long time period, it is important to explore how the threshold releasing level changes in random environments. By comparing the dynamics between the stochastic system and constructed auxiliary systems, combined with other techniques, we provide sharp estimates on the threshold releasing level for Wolbachia fixation. In addition, we prove that the threshold level is, surprisingly, defined by a deterministic curve that does not fluctuate with environmental conditions.