Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-22T14:17:38.102Z Has data issue: false hasContentIssue false

Explaining group-level traits requires distinguishing process from product

Published online by Cambridge University Press:  27 June 2014

Karthik Panchanathan
Affiliation:
Department of Anthropology, University of Missouri, Columbia, MO 65211. [email protected]://www.missouri.edu
Sarah Mathew
Affiliation:
School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287. [email protected]@asu.eduhttp://www.asu.edu/
Charles Perreault
Affiliation:
School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287. [email protected]@asu.eduhttp://www.asu.edu/

Abstract

Smaldino is right to argue that we need a richer theory of group-level traits. He is wrong, however, in limiting group-level traits to units of cultural selection, which require explanations based on group selection. Traits are best understood when explanations focus on both process (i.e., selection) and product (i.e., adaptation). This approach can distinguish group-level traits that arise through within-group processes from those that arise through between-group processes.

Type
Open Peer Commentary
Copyright
Copyright © Cambridge University Press 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Boyd, R. & Richerson, P. J. (2002) Group beneficial norms can spread rapidly in a structured population. Journal of Theoretical Biology 215:287–96.CrossRefGoogle Scholar
Boyd, R. & Richerson, P. J. (2009b) Voting with your feet: Payoff biased migration and the evolution of group beneficial behavior. Journal of Theoretical Biology 257:331–39.CrossRefGoogle ScholarPubMed