The Pleasures and Perils of Darwinizing Culture (with phylogenies)
Gray, RD, Greenhill, SJ, & Ross, RM (2007). The Pleasures and Perils of Darwinizing Culture (with phylogenies). Biological Theory, 2(4)
Current debates about “Darwinizing culture” have typically focused on the validity of memetics. In this paper we argue that meme-like inheritance is not a necessary requirement for descent with modification. We suggest that an alternative and more productive way of Darwinizing culture can be found in the application of phylogenetic methods. We review recent work on cultural phylogenetics and outline six fundamental questions that can be answered using the power and precision of quantitative phylogenetic methods. However, cultural evolution, like biological evolution, is often far from tree-like. We discuss the problems reticulate evolution can cause for phylogenetic analyses and suggest ways in which these problems can be overcome. Our solutions involve a combination of new methods for the study of cultural evolution (network construction, reconciliation analysis, and Bayesian mixture models), and the triangulation of different lines of historical evidence. Throughout we emphasize that most debates about cultural phylogenies can only be settled by empirical research rather than armchair speculation.
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