title: Group-level traits are not units of selection.
abstract: We argue that Smaldino has not established that group-level traits constitute a unit of selection distinct from selection on individuals, as group-level traits are neither replicators nor interactors. Moreover, we argue that Wimsatt's analysis of emergence and aggregativity supports an understanding of group-level and other emergent traits as explanatorily reducible to the individual level.
authors: Institute for Research in Cognitive Science, University of Pennsylvania,Philadelphia,PA 19104-6228.csantana@sas.upenn.edu.
authors: Carlos
authors: C
authors: Santana
authors: Institute for Research in Cognitive Science, University of Pennsylvania,Philadelphia,PA 19104-6228.csantana@sas.upenn.edu.
authors: Michael
authors: M
authors: Weisberg
mesh_terms: D003299:Cooperative Behavior; D003468:Cultural Evolution; D006126:Group Processes; D006801:Humans; D012641:Selection, Genetic