Adaptation of Mutation Rates in a Simple Model of Evolution
| Abstract | We have studied the adaptation of mutation rates in a simple model of evolution. The model consists of a two-dimensional world with a periodically replenished resource and a uctuating population of evolving agents whose survival and reproduction are an implicit a function of their success at nding resources and their internal metabolism. Earlier work suggested that mutation rate is a control parameter that governs a transition between two qualitatively di erent kinds of complex adaptive systems, and that the power of adaptive evolution is maximized when the mutation rate is around this transition. This paper provides evidence that evolving mutation rates adapt to values around this transition. Furthermore, the mutation rates adapt up (or down) as the evolutionary demands for novelty (or memory) increase | |||||||||
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Arlin Stoltzfus & Lev Yampolsky (2009). Climbing Mount Probable: Mutation as a Cause of Non-Randomness in Evolution. Journal of Heredity 100 (5):637-647.
Lev Yampolsky & Arlin Stoltzfus (2001). Bias in the Introduction of Variation as an Orienting Factor in Evolution. Evolution and Development 3 (2):73-83.
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