TIGP (BIO)—Using Lotka-Volterra equation to analyze species competition

Abstract

In microbial communities, species compete for resource, space and even actively target each other by toxins. How to predicting the outcome of competition has been a long-standing question. Lotka-Volterra equation has been widely used for modeling species interaction, but most theoretical studies focus on two or three species. In this class, I will introduce the classical results for two species competition. Next, I will introduce the May-Leonard system, where three species dominant each other in a cyclic manner, known as the Rock-Scissor-Paper (RSP) model. Finally, I will present our own ongoing modeling project on how RSP triad interacts with an invader species, known as the I+RSP system. Our goal is to explore the potential complexity of 4-species interaction, and understanding the dynamics of a complex community in future. 

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