New mathematical models for evolutionary origin of biodiversity

2016 Fiscal Year Final Research Report

• Project/Area Number: 25870800
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Ecology/Environment; Foundations of mathematics/Applied mathematics
• Research Institution: Meiji University
• Principal Investigator: Wakano Joe Yuichiro 明治大学, 総合数理学部, 専任准教授 (10376551)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 進化的分岐 / 進化ダイナミクス / 集団遺伝学 / 繁殖力関数

Outline of Final Research Achievements

We studied moment-expansion method and meta-population fitness method as models to research the evolutionary origin of biodiversity. We found that the two methods yield exactly the same analytic result. We also found that, under natural selection produced by any two-player games, deme structure always inhibit evolutionary branching. These results suggest that, if homogenous environment is divided into deme structures, the emergence of biodiversity is not enhanced by disruptive natural selection, compared to the case of non-divided populations.

Free Research Field

数理生物学