Communal breeding by women is associated with lower investment from husbands. (20th October 2022)
- Record Type:
- Journal Article
- Title:
- Communal breeding by women is associated with lower investment from husbands. (20th October 2022)
- Main Title:
- Communal breeding by women is associated with lower investment from husbands
- Authors:
- He, Qiao-Qiao
Rui, Jun-Wen
Zhang, Li
Tao, Yi
Wu, Jia-Jia
Mace, Ruth
Ji, Ting - Abstract:
- Abstract: Abstract: According to Hamilton's rule, matrilineal-biased investment restrains men in matrilineal societies from maximising their inclusive fitness (the 'matrilineal puzzle'). A recent hypothesis argues that when women breed communally and share household resources, a man should help his sisters' household, rather than his wife's household, as investment to the later but not the former would be diluted by other unrelated members (Wu et al., 2013 ). According to this hypothesis, a man is less likely to help on his wife's farm when there are more women reproducing in the wife's household, because on average he would be less related to his wife's household. We used a farm-work observational dataset, that we collected in the matrilineal Mosuo in southwest China, to test this hypothesis. As predicted, high levels of communal breeding by women in his wife's households do predict less effort spent by men on their wife's farm, and communal breeding in men's natal households do not affect whether men help on their natal farms. Thus, communal breeding by women dilutes the inclusive fitness benefits men receive from investment to their wife and children, and may drive the evolution of matrilineal-biased investment by men. These results can help solve the 'matrilineal puzzle'.
- Is Part Of:
- Evolutionary human sciences. Volume 4(2022)
- Journal:
- Evolutionary human sciences
- Issue:
- Volume 4(2022)
- Issue Display:
- Volume 4, Issue 2022 (2022)
- Year:
- 2022
- Volume:
- 4
- Issue:
- 2022
- Issue Sort Value:
- 2022-0004-2022-0000
- Page Start:
- Page End:
- Publication Date:
- 2022-10-20
- Subjects:
- Communal breeding -- matrilineal puzzle -- kin selection -- Mosuo -- matrilineal society
Human evoluation -- Periodicals
Social evolution -- Periodicals
599.938 - Journal URLs:
- https://www.cambridge.org/core/journals/evolutionary-human-sciences ↗
- DOI:
- 10.1017/ehs.2022.47 ↗
- Languages:
- English
- ISSNs:
- 2513-843X
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library HMNTS - ELD Digital store
- Ingest File:
- 24319.xml