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Not leaving home: grandmothers and male dispersal in a duolocal human society

Models suggest that dispersal patterns will influence age- and sex-dependent helping behavior in social species. Duolocal social systems (where neither sex disperses and mating is outside the group) are predicted to be associated with mothers favoring sons over daughters (because the latter are in reproductive competition with each other). Other models predict daughter-biased ...

Practical Support from Fathers and Grandmothers Is Associated with Lower Levels of Breastfeeding in the UK Millennium Cohort Study

Mothers face trade-offs between infant care and subsistence/economic activities. In traditional populations, allomothers such as fathers and grandmothers support mothers with young infants, allowing them to reduce labour activities and focus on breastfeeding. Similarly, the positive impact of social support on breastfeeding has been highlighted in developed populations. However, ...

Human behavioral ecology and its evil twin

Human behavioral evolutionary studies tend to interpret behavioral diversity in terms of either “culture” or ecology. Although human behavioral ecology and cultural evolution seem to be different fields, their protagonists often taking different approaches and generating different conclusions, they are in fact 2 kinds of explanation that are hard to tell apart in the real world. ...

Evolution of cultural traits occurs at similar relative rates in different world regions

Thomas E. Currie Ruth Mace Articles on similar topics can be found in the following collections Receive free email alerts when new articles cite this article - sign up in the box at the top right

Cooperation and conflict: field experiments in Northern Ireland

Antonio S. Silva 0 Ruth Mace 0 0 Department of Anthropology, University College London , London WC1H 0BW , UK Articles on similar topics can be found in the following collections Receive free email ... Award to Ruth Mace (ERC AdG249347). This study was approved by the UCL Research Ethics Committee (ID: 2390/002).

Variation in Male Reproductive Longevity across Traditional Societies

Most accounts of human life history propose that women have short reproductive spans relative to their adult lifespans, while men not only remain fertile but carry on reproducing until late life. Here we argue that studies have overlooked evidence for variation in male reproductive ageing across human populations. We apply a Bayesian approach to census data from Agta ...

The evolution of fairness: explaining variation in bargaining behaviour

Conceptions of fairness vary across the world. Identifying the drivers of this variation is key to understanding the selection pressures and mechanisms that lead to the evolution of fairness in humans. Individuals' varying fairness preferences are widely assumed to represent cultural norms. However, this assumption has not previously been tested. Fairness norms are defined as ...

Female reproductive competition within families in rural Gambia

Ruth Mace () 0 Alexandra Alvergne 0 0 Department of Anthropology, University College London , London WC1E 6BT, UK Articles on similar topics can be found in the following collections Receive free

The Effect of $1, $5 and $10 Stakes in an Online Dictator Game

The decision rules underpinning human cooperative behaviour are often investigated under laboratory conditions using monetary incentives. A major concern with this approach is that stake size may bias subjects’ decisions. This concern is particularly acute in online studies, where stakes are often far lower than those used in laboratory or field settings. We address this concern by ...

Community-level education accelerates the cultural evolution of fertility decline

Heidi Colleran Grazyna Jasienska Ilona Nenko Andrzej Galbarczyk Ruth Mace Articles on similar topics can be found in the following collections Receive free email alerts when new articles cite this

Cultural phylogeography of the Bantu Languages of sub-Saharan Africa

Thomas E. Currie Andrew Meade Myrtille Guillon Ruth Mace 0 Evolution research group, School of Biological Sciences, University of Reading , Lyle Building, Whiteknights, Reading, Berkshire RG6 6BX

Lost Letter Measure of Variation in Altruistic Behaviour in 20 Neighbourhoods

Altruistic behaviour varies across human populations and this variation is likely to be partly explained by variation in the ecological context of the populations. We hypothesise that area level socio-economic characteristics will determine the levels of altruism found in individuals living in an area and we use a lost letter experiment to measure altruism across 20 neighbourhoods ...

Mode and tempo in the evolution of socio-political organization: reconciling ‘Darwinian’ and ‘Spencerian’ evolutionary approaches in anthropology

Traditional investigations of the evolution of human social and political institutions trace their ancestry back to nineteenth century social scientists such as Herbert Spencer, and have concentrated on the increase in socio-political complexity over time. More recent studies of cultural evolution have been explicitly informed by Darwinian evolutionary theory and focus on the ...

Parental investment and the optimization of human family size

David W. Lawson () Ruth Mace Subject collections 0 Department of Anthropology, University College London , 14 Taviton Street, London WC1H 0BW, UK 1 Centre for Population Studies, London School of

Macro-evolutionary studies of cultural diversity: a review of empirical studies of cultural transmission and cultural adaptation

Ruth Mace () 1 Fiona M. Jordan 0 0 Evolutionary Processes in Language and Culture, Max Planck Institute for Psycholinguistics , PB310, 6500 Nijmegen , The Netherlands 1 Department of Anthropology

Reproductive competition between females in the matrilineal Mosuo of southwestern China

Ting Ji Jia-Jia Wu Qiao-Qiao He Jing-Jing Xu Ruth Mace Yi Tao 0 School of Mathematical Sciences, Beijing Normal University , Beijing 100875, China 1 Department of Anthropology, University College

Optimizing Modern Family Size

David W. Lawson 0 Ruth Mace 0 0 R. Mace Department of Anthropology, University College London , London, England 1 ) Centre for Population Studies, London School of Hygiene & Tropical Medicine , 49 ... modern populations. Ruth Mace is a professor of evolutionary anthropology at University College London. She is a fellow of the British Academy. Her research interests include a range of topics in human

Social Transmission and the Spread of Modern Contraception in Rural Ethiopia

Socio-economic development has proven to be insufficient to explain the time and pace of the human demographic transition. Shifts to low fertility norms have thus been thought to result from social diffusion, yet to date, micro-level studies are limited and are often unable to disentangle the effect of social transmission from that of extrinsic factors. We used data which included ...

Communal breeding promotes a matrilineal social system where husband and wife live apart

Jia-Jia Wu Qiao-Qiao He Ling-Ling Deng Shi-Chang Wang Ruth Mace Ting Ji Yi Tao 0 Department of Anthropology, University College London , 14 Taviton Street, London WC1H 0BW , UK 1 Key State Laboratory