Social and Behavioral Sciences Commons^™

A Test Of The Intergenerational Conflict Model In Indonesia Shows No Evidence Of Earlier Menopause In Female-Dispersing Groups, Kristin Snopkowski, Cristina Moya, Rebecca Sear

Kristin Snopkowski

Menopause remains an evolutionary puzzle, as humans are unique among primates in having a long post-fertile lifespan. One model proposes that intergenerational conflict in patrilocal populations favours female reproductive cessation. This model predicts that women should experience menopause earlier in groups with an evolutionary history of patrilocality compared with matrilocal groups. Using data from the Indonesia Family Life Survey, we test this model at multiple timescales: deep historical time, comparing age at menopause in ancestrally patrilocal Chinese Indonesians with ancestrally matrilocal Austronesian Indonesians; more recent historical time, comparing age at menopause in ethnic groups with differing postmarital residence within Indonesia …