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An inclusive fitness model for the evolutionary advantage of sibmating - Evolutionary Ecology

  • ️Getz, Wayne M.
  • ️Sat Jan 01 1994

Summary

We construct an inclusive fitness model of the relative selective advantage of sibmating and outbreeding behaviour, under the assumption that inbred offspring pay a fitness penalty. We are particularly interested in the question of whether such inbreeding depression is enough to generate a stable phenotypic polymorphism, with both kinds of breeding observed. The model predicts that, under diploidy, such a polymorphism is never found, but under haplodiploidy, it exists for a narrow range of parameter values. The inclusive fitness argument is technically interesting because care must be taken with reproductive values. We also present a corrected version of a one-locus genetic model for sibmating and find that the inclusive fitness and genetic models give identical results when selection is weak.

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Authors and Affiliations

  1. Department of Mathematics and Statistics, Queen's University, K7L 3N6, Kingston, Ontario, Canada

    Peter D. Taylor

  2. Department of Environmental Science, Policy and Management, University of California, 94720, Berkeley, CA, USA

    Wayne M. Getz

Authors

  1. Peter D. Taylor

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  2. Wayne M. Getz

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Taylor, P.D., Getz, W.M. An inclusive fitness model for the evolutionary advantage of sibmating. Evol Ecol 8, 61–69 (1994). https://doi.org/10.1007/BF01237666

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  • Issue Date: January 1994

  • DOI: https://doi.org/10.1007/BF01237666

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