Coalescence with Rough Boundaries

red ball Stepping Stone model for range expansion

     Flat:           Rough: 

  

                                          

red ball Genetic Diversity disappears more rapidly due to roughness of the advancing front. (off-line)

yellow ball"Evolution in range expansions with competition at rough boundaries," Sherry Chu, M.Kardar, D.R. Nelson, & D.A. Beller, arxiv:1812.09279.