title: Cultural differentiation does not entail group-level structure: The case for geographically explicit analysis.
abstract: Richerson et al. argue that relatively large cultural F ST values provide evidence for group structure and therefore scope for group selection. However, recent research on spatial patterns of cultural variation demonstrates that, as in the genetic case, apparent group structure can be a consequence of geographic clines, not group barriers. Such a pattern limits the scope for cultural group selection.
authors: Department of Psychology, Royal Holloway, University of London, Egham, Surry TW20 0EX, United Kingdom. robross45@yahoo.com.au. http://www.ccd.edu.au/people/profile.php?memberID=595.
authors: Robert Malcolm
authors: RM
authors: Ross
authors: Department of Psychology, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand. q.atkinson@auckland.ac.nz. http://www.fos.auckland.ac.nz/~quentinatkinson/Quentin_Atkinsons_Website/Home.html.
authors: Quentin Douglas
authors: QD
authors: Atkinson