Phys. Rev. Lett. 83, 1251–1254 (1999)Does Good Mutation Help You Live Longer?Received 25 January 1999; published in the issue dated 9 August 1999 We study the dynamics of an age-structured population in which the life expectancy of an offspring may be mutated with respect to that of its parent. When advantageous mutation is favored, the average fitness of the population grows linearly with time t, while in the opposite case the average fitness is constant. For no mutational bias, the average fitness grows as t2/3. The average age of the population remains finite in all cases and paradoxically is a decreasing function of the overall population fitness. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.1251
DOI:
10.1103/PhysRevLett.83.1251
PACS:
87.10.+e, 02.50.Ey, 82.20.Mj, 87.23.Cc
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