David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
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Behavioral and Brain Sciences 27 (4):543-559 (2004)
The transfer of food among group members is a ubiquitous feature of small-scale forager and forager-agricultural populations. The uniqueness of pervasive sharing among humans, especially among unrelated individuals, has led researchers to evaluate numerous hypotheses about the adaptive functions and patterns of sharing in different ecologies. This article attempts to organize available cross-cultural evidence pertaining to several contentious evolutionary models: kin selection, reciprocal altruism, tolerated scrounging, and costly signaling. Debates about the relevance of these models focus primarily on the extent to which individuals exert control over the distribution of foods they acquire, and the extent to which donors receive food or other fitness-enhancing benefits in return for shares given away. Each model can explain some of the variance in sharing patterns within groups, and so generalizations that ignore or deny the importance of any one model may be misleading. Careful multivariate analyses and cross-cultural comparisons of food transfer patterns are therefore necessary tools for assessing aspects of the sexual division of labor, human life history evolution, and the evolution of the family. This article also introduces a framework for better understanding variation in sharing behavior across small-scale traditional societies. I discuss the importance of resource ecology and the degree of coordination in acquisition activities as a key feature that influences sharing behavior. Key Words: behavioral ecology; cooperation; costly signaling; food sharing; foragers; reciprocal altruism.
|Keywords||behavioral ecology cooperation costly signaling food sharing foragers reciprocal altruism|
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Citations of this work BETA
Mary K. Shenk (2005). Kin Investment in Wage-Labor Economies. Human Nature 16 (1):81-113.
Maciej Chudek & Joseph Henrich (2011). Culture–Gene Coevolution, Norm-Psychology and the Emergence of Human Prosociality. Trends in Cognitive Sciences 15 (5):218-226.
Brendan Cline (2015). Nativism and the Evolutionary Debunking of Morality. Review of Philosophy and Psychology 6 (2):231-253.
Nicolas Baumard (2010). Has Punishment Played a Role in the Evolution of Cooperation? A Critical Review. Mind and Society 9 (2):171-192.
Michael Alvard (2009). Kinship and Cooperation. Human Nature 20 (4):394-416.
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