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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Evolution. 2011 Apr 7;65(8):2391–2398. doi: 10.1111/j.1558-5646.2011.01299.x

Figure 3.

Figure 3

The sequential game equilibrium is robust to symbiont migration between hosts. (A) The population becomes bistable for intermediate levels of migration and the equilibrium shifts at high levels. However, for realistic values of migration (<30%) the equilibrium remains unchanged for RER of 100 (solid lines) and infinity (dashed). (B) All forms of symbiont transmission are equivalent at high RER. The time to reach equilibrium is defined as the number of host generations it takes to reach a population of 90% defecting hosts in the snowdrift game from an initial purely cooperating host and defecting symbiont population. At high RER, this time is the same, independent of the form of symbiont transmission. At low RER, this time diverges.