The British Journal for the Philosophy of Science Advance Access originally published online on November 14, 2006
The British Journal for the Philosophy of Science 2006 57(4):627-653; doi:10.1093/bjps/axl025
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Natural Selection as a Population-Level Causal Process
Department of Philosophy University of California, Davis One Shields Avenue Davis, CA 95616, USA RLMillstein{at}UCDavis.edu
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Recent discussions in the philosophy of biology have brought into question some fundamental assumptions regarding evolutionary processes, natural selection in particular. Some authors argue that natural selection is nothing but a population-level, statistical consequence of lower-level events (Matthen and Ariew [2002]; Walsh et al. [2002]). On this view, natural selection itself does not involve forces. Other authors reject this purely statistical, population-level account for an individual-level, causal account of natural selection (Bouchard and Rosenberg [2004]). I argue that each of these positions is right in one way, but wrong in another; natural selection indeed takes place at the level of populations, but it is a causal process nonetheless.
- Introduction
- A brief justification of population-level causality
2.1 Frequency-dependent selection
2.2 Accounts of causation
- The montane willow leaf beetle: a causal story
- The montane willow leaf beetle: a population-level story
4.1 Response to naïve individualism
4.2 Response to sophisticated individualism
- Conclusion
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