Tittle: Global Dynamics of Population Models with Seasonality

Speaker: Yequan Liang, Memorial University of Newfoundland

Abstract: Seasonality is common in population dynamics, since environmental conditions often
change in a regular way over time. These changes may influence key biological processes,
including reproduction, growth, movement, and survival, and may lead to different long-term
outcomes for population systems. This thesis presents two research projects on population
dynamics in seasonal environments. The main focus is a completed study of a mosquito
growth model with stage structure, pair formation, and periodic developmental delay. For
this model, we introduce the basic reproduction ratio as a threshold quantity for extinction
and persistence, and establish the corresponding dynamical results in a seasonal setting. The
thesis also briefly discusses ongoing work on a single-species model with seasonal succession
and strong Allee effect, with emphasis on bistable traveling waves. These projects illustrate
how seasonality influences both the temporal and spatial dynamics of biological populations.

 

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Location: Online

Date and Time: Tuesday, Mar. 31 at 03:00 PM - 05:00 PM (NDT)

For more information: https://mun.webex.com/mun/j.php?MTID=m50ce60168f15405289514fed24241751

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