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Hamilton’s Two Conceptions of Social Fitness

Published online by Cambridge University Press:  01 January 2022

Jonathan Birch
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Abstract

Hamilton introduced two conceptions of social fitness, which he called neighbor-modulated fitness and inclusive fitness. Although he regarded them as formally equivalent, a reanalysis of his own argument for their equivalence brings out two important assumptions on which it rests: weak additivity and actor’s control. When weak additivity breaks down, neither fitness concept is appropriate in its original form. When actor’s control breaks down, neighbor-modulated fitness may be appropriate, but inclusive fitness is not. Yet I argue that, despite its more limited domain of application, inclusive fitness provides a distinctively valuable perspective on social evolution.

Type
50 Years of Inclusive Fitness
Information
Philosophy of Science , Volume 83 , Issue 5 , December 2016 , pp. 848 - 860
Copyright
Copyright © The Philosophy of Science Association

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Footnotes

†

This article is based on my contribution to the symposium “50 Years of Inclusive Fitness” held at the 2014 PSA meeting in Chicago, IL, November 6–9. I am very grateful to my fellow contributors (Ullica Segerstrale, Patrick Forber, Rory Smead, Dave Queller, and Samir Okasha) and also to Andrew Buskell, Ellen Clarke, James Marshall, and a reading group at Australian National University. This work was supported by a Philip Leverhulme Prize from the Leverhulme Trust.

References

Birch, Jonathan. 2012. “Collective Action in the Fraternal Transitions.” Biology and Philosophy 27:363–80.CrossRefGoogle Scholar
Birch, Jonathan 2013. “Kin Selection: A Philosophical Analysis.” PhD diss., University of Cambridge.Google Scholar
Birch, Jonathan 2014a. “Hamilton’s Rule and Its Discontents.” British Journal for the Philosophy of Science 65:381–411.CrossRefGoogle Scholar
Birch, Jonathan 2014b. “Has Grafen Formalized Darwin?” Biology and Philosophy 29:175–80.CrossRefGoogle Scholar
Birch, Jonathan 2016. “Natural Selection and the Maximization of Fitness.” Biological Reviews 91:712–27.CrossRefGoogle Scholar
Birch, Jonathan, and Okasha, Samir. 2015. “Kin Selection and Its Critics.” BioScience 65:22–32.CrossRefGoogle Scholar
Frank, Steven A. 1998. Foundations of Social Evolution. Princeton, NJ: Princeton University Press.CrossRefGoogle Scholar
Frank, Steven A. 2013. “Natural Selection.” Pt. 7, “History and Interpretation of Kin Selection Theory.” Journal of Evolutionary Biology 26:1151–84.CrossRefGoogle Scholar
Gardner, Andy. 2009. “Adaptation as Organism Design.” Biology Letters 5:861–64.CrossRefGoogle ScholarPubMed
Gardner, Andy, West, Stuart A., and Wild, Geoff. 2011. “The Genetical Theory of Kin Selection.” Journal of Evolutionary Biology 24:1020–43.CrossRefGoogle ScholarPubMed
Grafen, Alan. 1982. “How Not to Measure Inclusive Fitness.” Nature 298:425–26.CrossRefGoogle ScholarPubMed
Grafen, Alan 1984. “Natural Selection, Kin Selection and Group Selection.” In Behavioural Ecology, 2nd ed., ed. Krebs, John R. and Davies, Nicholas B., 62–84. Oxford: Blackwell.Google Scholar
Davies, Nicholas B. 1999. “Formal Darwinism, the Individual-as-Maximising-Agent Analogy, and Bet-Hedging.” Proceedings of the Royal Society B 266:799–803.Google Scholar
Davies, Nicholas B. 2006. “Optimization of Inclusive Fitness.” Journal of Theoretical Biology 238:541–63.Google Scholar
Davies, Nicholas B. 2014. “The Formal Darwinism Project in Outline.” Biology and Philosophy 29:155–74.Google Scholar
Hamilton, William D. 1964. “The Genetical Evolution of Social Behaviour.” Journal of Theoretical Biology 7:1–52.CrossRefGoogle ScholarPubMed
Hamilton, William D. 1970. “Selfish and Spiteful Behaviour in an Evolutionary Model.” Nature 228:1218–20.CrossRefGoogle Scholar
Marshall, James A. R. 2015. Social Evolution and Inclusive Fitness Theory: An Introduction. Princeton, NJ: Princeton University Press.Google Scholar
Maynard Smith, John. 1983. “Models of Evolution.” Proceedings of the Royal Society B 219:315–25.Google Scholar
Price, George R. 1970. “Selection and Covariance.” Nature 227:520–21.CrossRefGoogle ScholarPubMed
Queller, David C. 1985. “Kinship, Reciprocity, and Synergism in the Evolution of Social Behaviour.” Nature 318:366–67.CrossRefGoogle Scholar
Queller, David C. 2011. “Expanded Social Fitness and Hamilton’s Rule for Kin, Kith and Kind.” Proceedings of the National Academy of Sciences USA 108:10792–99.CrossRefGoogle ScholarPubMed
Sober, Elliott. 1984. The Nature of Selection: Evolutionary Theory in Philosophical Focus. Chicago: University of Chicago Press.Google Scholar
Taylor, Peter D., and Frank, Steven A.. 1996. “How to Make a Kin Selection Model.” Journal of Theoretical Biology 180:27–37.CrossRefGoogle ScholarPubMed
Taylor, Peter D., Wild, Geoff, and Gardner, Andy. 2007. “Direct Fitness or Inclusive Fitness: How Shall We Model Kin Selection?” Journal of Evolutionary Biology 20:301–9.CrossRefGoogle ScholarPubMed
Wenseleers, Tom, Gardner, Andy, and Foster, Kevin R.. 2010. “Social Evolution Theory: A Review of Methods and Approaches.” In Social Behaviour: Genes, Ecology and Evolution, ed. Székely, Tamás, Moore, Allen J., and Komdeur, Jan, 132–58. Cambridge: Cambridge University Press.Google Scholar
West, Stuart A., and Gardner, Andy. 2013. “Inclusive Fitness and Adaptation.” Current Biology 23:R577–R584.CrossRefGoogle Scholar