Conditions for evolutionary branching in two-dimensional trait spaces

Department of Systems and Sciences, University of Tokyo, Japan

Hiroshi Ito

Hiroshi Ito

Speciation by ecological interaction is an important process underlying the generation of biodiversity. Adaptive dynamics theory provides tools for understanding such processes, in which an evolving population is first attracted to particular locations in trait space (called evolutionary branching points) at which selection subsequently turns disruptive and the founder population is split into two subpopulations. My numerical simulations have already shown that in two-dimensional trait spaces such splits cannot only occur at particular points but also along specific lines in trait space. We are now developing analytical conditions for evolutionary branching in two-dimensional trait spaces, and compare the resulting predictions with numerical simulations.

Print this page

Last edited: 25 March 2016

International Institute for Applied Systems Analysis (IIASA)
Schlossplatz 1, A-2361 Laxenburg, Austria
Phone: (+43 2236) 807 0 Fax:(+43 2236) 71 313