Fig. 3

Comparative invasion matrix for uniform and harlequin landscapes. Numbers indicate parameter values tested, with the reference conditions for each parameter indicated in bold in the central column. Background colours indicate outcomes of invasion scenarios as either an ESS for DCF (red), ESS for ICF (blue), coexistence of both strategies (grey) or inviable conditions for both strategies (white). Panes are split to indicate outcomes in a uniform landscape (upper left of each pane) and a harlequin landscape (lower right) such that two-toned panes indicate parameter values for which different environments produced different ESS conditions. Nine changes were found when switching from uniform to harlequin landscapes: one from no strategy surviving to ICF, and the remainder from ESS to coexistence [two from ICF to coexistence (blue to grey) and six from DCF to coexistence (red to grey)]. Symbols on the right hand end of the figure indicate whether the conditions for coexistence of both strategies relative to uniform landscapes were broadened (+) or unchanged (=). For aggregation: uni uniform, rand random