Clarke, Christopher (2014) Multi-Level Selection and the Explanatory Value of Mathematical Decompositions. [Preprint]
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Abstract
Do multi-level selection explanations of the evolution of social traits deepen the understanding provided by single-level explanations? Central to the former is a mathematical theorem, the multi-level Price decomposition. I build a framework through which to understand the explanatory role of such non-empirical decompositions in scientific practice. Applying this general framework to the present case places two tasks on the agenda. The first task is to distinguish the various ways of suppressing within-collective variation in fitness, and moreover to evaluate their biological interest. I distinguish four such ways: increasing retaliatory capacity, homogenising assortment, and collapsing either fitness structure or character distribution to a mean value. The second task is to discover whether the third term of the Price decomposition measures the effect of any of these hypothetical interventions. On this basis I argue that the multi-level Price decomposition has explanatory value primarily when the sharing-out of collective resources is 'subtractable'. Thus its value is more circumscribed than its champions Sober and Wilson (1998) suppose.
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| Item Type: | Preprint | ||||||
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| Keywords: | Evolutionary Explanation, Group Selection, Multi-Level Selection Theory, Mathematical Explanation, Evolutionary Theory | ||||||
| Subjects: | Specific Sciences > Biology > Evolutionary Theory General Issues > Explanation Specific Sciences > Mathematics |
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| Depositing User: | Dr Christopher Clarke | ||||||
| Date Deposited: | 13 May 2014 07:39 | ||||||
| Last Modified: | 13 May 2014 07:39 | ||||||
| Item ID: | 10667 | ||||||
| Subjects: | Specific Sciences > Biology > Evolutionary Theory General Issues > Explanation Specific Sciences > Mathematics |
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| Date: | 12 May 2014 | ||||||
| URI: | https://philsci-archive.pitt.edu/id/eprint/10667 |
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