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. Author manuscript; available in PMC: 2016 Mar 21.
Published in final edited form as: J Theor Biol. 2015 Jan 28;369:85–94. doi: 10.1016/j.jtbi.2015.01.020

Figure 6.

Figure 6

The evolutionary potential of cooperation (M) was computed by combining the final proportion of cooperators and the rate of fixation of either strategy. The M score was significantly influenced by the benefit to defect (b), the average duration of pre-reproductive, reproductive, and post-reproductive life span, as well their interactions. To illustrate the main findings, average M for each scenario is plotted as a function of the pre- and post-reproductive lifespans for separate b values (increasing from left to right) and for the shortest (top row) and longest (bottom row) reproductive duration.