David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Ezio Di Nucci
Jack Alan Reynolds
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Biology and Philosophy 17 (4):551-565 (2002)
A number of recent discussions have argued that George Price's equationfor representing evolutionary change is a powerful and illuminatingtool, especially in the context of debates about multiple levels ofselection. Our paper dissects Price's equation in detail, and comparesit to another statistical tool: the calculation and comparison ofaverage fitnesses. The relations between Price's equation and equationsfor evolutionary change using average fitness are closer than issometimes supposed. The two approaches achieve a similar kind ofstatistical summary of one generation of change, and they achieve thisvia a similar loss of information about the underlying fitnessstructure.
|Keywords||altruism average fitness clumping group selection individual selection marginal fitness multi-level selection Price's equation statistics|
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Sahotra Sarkar (2008). A Note on Frequency Dependence and the Levels/Units of Selection. Biology and Philosophy 23 (2):217-228.
Samir Okasha (2006). The Levels of Selection Debate: Philosophical Issues. Philosophy Compass 1 (1):74–85.
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