Straight-line distance covered by dispersing individuals and their survival since patch colonization through time. Calculation of survival assumed that exactly 10% of population emigrated, therefore it slightly exceeds 100% in one case. The grey area encloses 95% of values, thick lines depict medians, dotted lines depict means. Values are averaged over 25 simulations. Changes in these traits related to the distance of a patch to expanding wavefront are shown in electronic supplementary material, figure S2, and comparison with results with evolving switching shape in electronic supplementary material, figure S4.