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Updated: Jul 7, 2026

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations
Published on: October 29, 2016
Group transmission and niche construction in peer cultures
Temechegn Gutu Bira1, Barry S Hewlett2
1Department of Anthropology, Washington State University, Pullman, WA, USA temechegn.bira@wsu.edu.
None:
Our commentary expands upon Lew-Levy and Amir's insights into the role of peer culture in cultural evolution. Drawing on field data from the Koygu, Nyangatom, and Aka communities, we identify two modes of group transmission (concerted and cumulative) that contribute to the stability of peer cultures over time. We describe how culturally constructed niches shape peer learning, helping explain the intercultural diversity of peer cultures.
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