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An Allelocentric Analysis of Hamilton's Rule for Overlapping Generations

✍ Scribed by R.M. Sibly


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
226 KB
Volume
167
Category
Article
ISSN
0022-5193

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✦ Synopsis


Although comprehensive population genetic analyses of Hamilton's rule are available for discrete generations, existing treatments of overlapping generations only cover rare mutations. Here the general case including partial dominance using an allelocentric method is analysed. The assumptions are weak selection, fitness changes in individual lifetimes negligibly small, random mating, outbreeding, and additivity of fitness effects. Costs to helpers and benefits to recipients are defined directly in terms of their life-history effects (on age-specific survivorship and fecundity) weighted by the relevant partial selection pressures. From this it follows that survivorship benefits should be allocated between relatives according to their reproductive values, in agreement with Charlesworth & Charnov (1981, J. theor. Biol. 88, 103-119) and Taylor (1990, Am. Nat. 135, 95-106).


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