Abstract
We use data collected among Hadza hunter-gatherers between 2005 and 2009 to examine hypotheses about the causes and consequences of men’s foraging and food sharing. We find that Hadza men foraged for a range of food types, including fruit, honey, small animals, and large game. Large game were shared not like common goods, but in ways that significantly advantaged producers’ households. Food sharing and consumption data show that men channeled the foods they produced to their wives, children, and their consanguineal and affinal kin living in other households. On average, single men brought food to camp on 28% of days, married men without children at home on 31% of days, and married men with children at home on 42% of days. Married men brought fruit, the least widely shared resource, to camp significantly more often than single men. A model of the relationship between hunting success and household food consumption indicates that the best hunters provided 3–4 times the amount of food to their families than median or poor hunters. These new data fill important gaps in our knowledge of the subsistence economy of the Hadza and uphold predictions derived from the household and kin provisioning hypotheses. Key evidence and assumptions backing prior claims that Hadza hunting is largely a form of status competition were not replicated in our study. In light of this, family provisioning is a more viable explanation for why good hunters are preferred as husbands and have higher fertility than others.
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Notes
On marital classifications: Men who were living with a spouse were classified as married, and otherwise, single. Although some men living alone might claim to be married, from a household provisioning standpoint, having a wife who is not co-resident is essentially equivalent to having no wife.
On kinship: Using a more restrictive definition of kin, considering only individuals related by r > 0.125 to the food producer or his wife, corroborates this evidence for kin-biases in consumption (consanguineal vs. non-kin: χ2 = 106.0, p < 0.0005; affinal vs. non-kin: χ2 = 6.2, p = 0.01).
On focal follows: Hawkes et al. (1991) report data derived from 45 follows conducted in 1985–1986 covering 75 hunter-days (average = 1.6 hunters per follow). In these follows, 14 small game animals were killed.
On selecting the max, the median, and the minimum hunters: Selecting the maximum-producing hunter in each camp is straightforward. Selecting the median hunter is straightforward in camps with an odd number of hunters. In camps with an even number, we first removed the best hunter from the sample and then identified the median hunter from among those men who remained. Since the distribution of hunting success among men is usually right-skewed (a few hunters with very high success), this is a better estimate of central tendency. Selecting the minimum hunter was a little tricky in two camps, where more than one man produced zero large game or small game. In these instances, we randomly selected one of the men.
References
Allen-Arave, W., Gurven, M., & Hill, K. (2008). Reciprocal altruism, rather than kin selection, maintains nepotistic food transfers on an Ache reservation. Evolution and Human Behavior, 29(5), 305–318.
Berbesque, J., & Marlowe, F. (2009). Sex differences in food preferences of Hadza hunter-gatherers. Evolutionary Psychology, 7(4), 601–616.
Betzig, L., & Turke, P. (1986). Food sharing on Ifaluk. Current Anthropology, 27(4), 397–400.
Binford, L. (1978). Nunamiut ethnoarchaeology. New York: Academic.
Bliege Bird, R., Bird, D., Smith, E., & Kushnick, G. (2002). Risk and reciprocity in Meriam food sharing. Evolution and Human Behavior, 23(4), 297–321.
Blurton Jones, N. G. (1984). Selfish origin for human food sharing: tolerated theft. Ethology and Sociobiology, 5(1), 1–3.
Blurton Jones, N. G. (1987). Tolerated theft: suggestions about the ecology and evolution of sharing, hoarding, and scrounging. Social Science Information, 26, 31–54.
Blurton Jones, N. G., Smith, L. C., O’Connell, J. F., Hawkes, K., & Kamuzora, C. L. (1992). Demography of the Hadza, an increasing and high density population of savanna foragers. American Journal of Physical Anthropology, 89(2), 159–181.
Blurton Jones, N. G., Marlowe, F., Hawkes, K., & O’Connell, J. F. (2000). Paternal investment and hunter-gatherer divorce rates. In L. Cronk, N. Chagnon, & W. Irons (Eds.), Adaptation and human behavior: An anthropological perspective (pp. 69–90). New York: Aldine.
Bowles, S., & Gintis, H. (2004). The evolution of strong reciprocity: cooperation in heterogeneous populations. Theoretical Population Biology, 65(1), 17–28.
Boyd, R., & Richerson, P. (1988). The evolution of reciprocity in sizable groups. Journal of Theoretical Biology, 132(3), 337–356.
Broughton, J. (2002). Pre-columbian human impact on California vertebrates: Evidence from old bones and implications for wilderness policy. In C. E. Kay & R. T. Simmons (Eds.), Wilderness and political ecology: Aboriginal influences and the original state of nature (pp. 44–71). Salt Lake City: University of Utah Press.
Bunn, H. (2001). Hunting, power scavenging and butchery by Hadza foragers and by Plio-Pleistocene Homo. In C. B. Stanford & H. T. Bunn (Eds.), Meat-eating and human evolution (pp. 199–217). New York: Oxford University Press.
Bunn, H., Bartram, L., & Kroll, E. (1988). Variability in bone assemblage formation from Hadza hunting, scavenging, and carcass processing. Journal of Anthropological Archaeology, 7, 412–457.
Burger, O., Hamilton, M., & Walker, R. (2005). The prey as patch model: optimal handling of resources with diminishing returns. Journal of Archaeological Science, 32(8), 1147–1158.
Cerling, T. E., Wynn, J. G., Andanje, S. A., Bird, M. I., Korir, D. K., Levin, N. E., et al. (2011). Woody cover and hominin environments in the past 6 million years. Nature, 476(7358), 51–56.
Chapais, B. (2011). The evolutionary history of pair-bonding and parental collaboration. In C. Salmon & T. Shackelford (Eds.), The Oxford handbook of evolutionary family psychology (pp. 33–50). Oxford: Oxford University Press.
Crittenden, A., & Marlowe, F. (2008). Allomaternal care among the Hadza of Tanzania. Human Nature, 19(3), 249–262.
Damas, D. (1972). Central Eskimo systems of food sharing. Ethnology, 11(3), 220–240.
Flinn, M. V., & Low, B. S. (1986). Resource distribution, social competition, and mating patterns in human societies. In D. I. Rubenstein & R. W. Wrangham (Eds.), Ecological aspects of social evolution: Birds and mammals (pp. 217–243). Princeton: Princeton University Press.
Flinn, M. V. (2011). Evolutionary anthropology of the human family. In C. Salmon & T. Shackleford (Eds.), The Oxford handbook of evolutionary family psychology (pp. 12–32). Oxford: Oxford University Press.
Gurven, M. (2004). To give or not to give: an evolutionary ecology of human food transfers. Behavioral and Brain Sciences, 27(4), 543–583.
Gurven, M., & Hill, K. (2009). Why do men hunt? A reevaluation of “man the hunter” and the sexual division of labor. Current Anthropology, 50(1), 51–62.
Gurven, M., & Hill, K. (2010). Moving beyond stereotypes of men’s foraging goals. Current Anthropology, 51(2), 265–267.
Gurven, M., Allen-Arave, W., Hill, K., & Hurtado, A. (2001). Reservation food sharing among the Ache of Paraguay. Human Nature, 12(4), 273–297.
Hamilton, W. D. (1964). The genetical evolution of social behavior, I and II. Journal of Theoretical Biology, 7(1), 1–52.
Hawkes, K. (1990). Why do men hunt? Some benefits for risky strategies. In E. Cashdan (Ed.), Risk and uncertainty in tribal and peasant economies (pp. 145–166). Boulder: Westview.
Hawkes, K. (1991). Showing off: tests of another hypothesis about men’s foraging goals. Ethology and Sociobiology, 12(1), 29–54.
Hawkes, K. (2001). Is meat the hunter’s property? Big game, ownership, and explanations of hunting and sharing. In C. Stanford & H. Bunn (Eds.), Meat-eating and human evolution (pp. 219–236). Oxford: Oxford University Press.
Hawkes, K., O’Connell, J., & Blurton Jones, N. G. (1991). Hunting income patterns among the hadza: big game, common goods, foraging goals and evolution of the human diet. Philosophical Transactions of the Royal Society of London B, 334(1270), 243–251.
Hawkes, K., O’Connell, J., & Blurton Jones, N. G. (1997). Hadza women’s time allocation, offspring provisioning, and the evolution of long postmenopausal life spans. Current Anthropology, 38(4), 551–577.
Hawkes, K., O’Connell, J., & Blurton Jones, N. G. (2001a). Hadza meat sharing. Evolution and Human Behavior, 22(2), 113–142.
Hawkes, K., O’Connell, J., & Blurton Jones, N. G. (2001b). Hunting and nuclear families: some lessons from the Hadza about men’s work. Current Anthropology., 42, 681–709.
Hawkes, K., O’Connell, J., & Coxworth, J. E. (2010). Family provisioning is not the only reason men hunt. Current Anthropology., 52(2), 259–264.
Helm, J. (1968). The nature of Dogrib socioterritorial groups. In R. Lee & I. Devore (Eds.), Man the hunter (pp. 118–126). Chicago: Aldine.
Hildebrandt, W., & McGuire, K. (2002). The ascendance of hunting during the California Middle Archaic: an evolutionary perspective. American Antiquity, 67(2), 231–256.
Hill, K., Kaplan, H., Hawkes, K., & Hurtado, A. M. (1987). Foraging decisions among Ache hunter-gatherers: new data and implications for optimal foraging models. Ethology and Sociobiology, 8, 1–36.
Hill, K. (1988). Macronutrient modifications of optimal foraging theory: an approach using indifference curves applied to some modern foragers. Human Ecology, 16(2), 157–197.
Hill, K., & Kaplan, H. (1999). Life history traits in humans: theory and empirical studies. Annual Review of Anthropology, 28, 397–430.
Hill, K., Walker, R., Božičević, M., Eder, J., Headland, T., Hewlett, B., et al. (2011). Co-residence patterns in hunter-gatherer societies show unique human social structure. Science, 331(6022), 1286–1289.
Isaac, G. (1978). The food-sharing behavior of protohuman hominids. Scientific American, 238(4), 90–108.
Jaeggi, A. V., & van Schaik, C. P. (2011). The evolution of food sharing in primates. Behavioral Ecology and Sociobiology, 65(11), 2125–2140.
Kaplan, H., & Hill, K. (1985). Food sharing among Ache foragers: tests of explanatory hypotheses. Current Anthropology, 26, 223–246.
Kaplan, H., Hill, K., Lancaster, J., & Hurtado, A. M. (2000). A theory of human life history evolution: diet, intelligence, and longevity. Evolutionary Anthropology, 9(4), 156–185.
Kleiman, D., & Malcolm, J. (1981). The evolution of male parental investment in mammals. In D. Gubernick & P. Klopfer (Eds.), Parental care in mammals (pp. 347–387). New York: Plenum.
Koster, J. M. (2011). Inter-household meat sharing among Mayangna and Miskito horticulturalists in Nicaragua. Human Nature, 22(4), 394–415.
Lovejoy, C. O. (1981). The origin of man. Science, 211(4480), 341–350.
Madrigal, T., & Holt, J. (2002). White-tailed deer meat and marrow return rates and their application to eastern woodlands archaeology. American Antiquity, 67(4), 745–759.
Marlowe, F. (1999). Showoffs or providers? The parenting effort of Hadza men. Evolution and Human Behavior, 20(6), 391–404.
Marlowe, F. (2003). A critical period for provisioning by Hadza men: implications for pair bonding. Evolution and Human Behavior, 24(3), 217–229.
Marlowe, F. (2004). Mate preferences among Hadza hunter-gatherers. Human Nature, 15(4), 365–376.
Marlowe, F. W. (2005). Hunter-gatherers and human evolution. Evolutionary Anthropology: Issues, News, and Reviews, 14(2), 54–67.
Marlowe, F. (2007). Hunting and gathering: the human sexual division of foraging labor. Cross Cultural Research, 41(2), 170–195.
Marlowe, F. (2010). The Hadza: Hunter-gatherers of Tanzania. Berkeley: University of California Press.
Metcalfe, D., & Jones, K. (1988). A reconsideration of animal body-part utility indexes. American Antiquity, 53(3), 486–504.
Mintz, S., & DuBois, C. (2002). The anthropology of food and eating. Annual Review of Anthropology, 31, 99–119.
Møller, A., & Cuervo, J. (2000). The evolution of paternity and paternal care in birds. Behavioral Ecology, 11(5), 472–485.
Nolin, D. (2010). Food-sharing networks in Lamalera, Indonesia: reciprocity, kinship, and distance. Human Nature, 21(3), 243–268.
O’Connell, J. F., Hawkes, K., & Blurton Jones, N. G. (1988). Hadza hunting, butchering, and bone transport and their archaeological implications. Journal of Anthropological Research, 44(2), 113–161.
O’Connell, J. F., Hawkes, K., & Blurton Jones, N. G. (1990). Reanalysis of large mammal body part transport among the Hadza. Journal of Archaeological Science, 17(3), 301–316.
O’Connell, J. F., Hawkes, K., & Blurton Jones, N. G. (1999). Grandmothering and the evolution of Homo erectus. Journal of Human Evolution, 36(5), 461–485.
O’Connell, J. F., Hawkes, K., Lupo, K. D., & Blurton Jones, N. G. (2002). Male strategies and Plio-Pleistocene archaeology. Journal of Human Evolution, 43(6), 831–872.
Patton, J. (2005). Meat sharing for coalitional support. Evolution and Human Behavior, 26(2), 137–157.
Peterson, N. (1993). Demand sharing: reciprocity and the pressure for generosity among foragers. American Anthropologist, 95(4), 860–874.
Quinlan, R. J. (2008). Human pair–bonds: evolutionary functions, ecological variation, and adaptive development. Evolutionary Anthropology, 17(5), 227–238.
Sahlins, M. D. (1972). Stone age economics. Chicago: Aldine.
Speth, J., Newlander, K., White, A., Lemke, A., & Anderson, L. (2010). Early Paleoindian big-game hunting in North America: provisioning or politics? Quaternary International. doi:10.1016/j.quaint.2010.10.027.
Tomasello, M., Melis, A., Tennie, C., Wyman, E., & Herrmann, E. (2012). Two key steps in the evolution of human cooperation: the interdependence hypothesis. Current Anthropology, 53, 679–692.
Trivers, R. (1972). Parental investment and sexual selection. In B. Campbell (Ed.), Sexual selection and the descent of man 1871-1971 (pp. 136–179). Chicago: Aldine.
Ungar, P., Grine, F., & Teaford, M. (2006). Diet in early Homo: a review of the evidence and a new model of adaptive versatility. Annual Review of Anthropology, 35, 209–228.
Vickery, W., Giraldeau, L., Templeton, J., Kramer, D., & Chapman, C. (1991). Producers, scroungers, and group foraging. American Naturalist, 137(6), 847–863.
Washburn, S. L., & Lancaster, C. S. (1968). The evolution of hunting. In R. Lee & I. Devore (Eds.), Man the hunter (pp. 293–303). New York: Aldine de Gruyter.
Wenzel, G. (1995). Ningiqtuq: resource sharing and generalized reciprocity in Clyde River, Nunavut. Arctic Anthropology, 32(2), 43–60.
Winterhalder, B. (1986). Diet choice, risk, and sharing in a stochastic environment. Journal of Anthropological Archaeology, 5(4), 369–392.
Winterhalder, B. (1996). Marginal model of tolerated theft. Ethology and Sociobiology, 17(1), 37–53.
Wood, B. (2006). Prestige or provisioning? A test of foraging goals among the Hadza. Current Anthropology, 47(2), 383–387.
Wood, B., & Marlowe, F. (2010). Hadza social networks. Paper presented at the 109th annual meeting of the American Anthropological Association, November 17-21, New Orleans.
Wood, B., & Marlowe, F. (2011). Dynamics of postmarital residence among the Hadza: a kin investment model. Human Nature, 22(1), 128–138.
Woodburn, J. (1968a). An introduction to Hadza ecology. In R. Lee & I. Devore (Eds.), Man the hunter (pp. 49–55). New York: Aldine de Gruyter.
Woodburn, J. (1968b). Stability and flexibility in Hadza residential groupings. In R. Lee & I. Devore (Eds.), Man the hunter (pp. 103–117). New York: Aldine.
Woodburn, J. (1979). Minimal Politics: The political organization of the Hadza of north Tanzania. In W. Shack & P. Cohen (Eds.), Politics in leadership: A comparative perspective (pp. 244–266). Oxford: Oxford University Press.
Woodburn, J. (1982). Egalitarian societies. Man, 17(3), 431–451.
Ziker, J., & Schnegg, M. (2005). Food sharing at meals: kinship, reciprocity, and clustering in the Taimyr Autonomous Region, Northern Russia. Human Nature, 16(2), 178–210.
Acknowledgments
This research was made possible by grants from the National Science Foundation, the Leakey Foundation, the Wenner-Gren Foundation, and the Harvard Department of Human Evolutionary Biology. We thank the Tanzanian Commission on Science and Technology for permission to conduct this research. We also thank Dr. Audax Mabulla, Chris Daborn, Claire Porter, Alyssa Crittenden, Johannes and Lena Kleppe, Daudi Peterson, Christian and Nani Schmelling, and Happy Msofe for their help in the field. We appreciate the readers who provided helpful comments on earlier versions of this manuscript, including Richard Wrangham, Karen Kramer, Douglas Bird, Rebecca Bliege Bird, Kristen Hawkes, James O’Connell, Jeremy Koster, and three anonymous reviewers. Our deepest gratitude is to the Hadza for their cooperation.
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Wood, B.M., Marlowe, F.W. Household and Kin Provisioning by Hadza Men. Hum Nat 24, 280–317 (2013). https://doi.org/10.1007/s12110-013-9173-0
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DOI: https://doi.org/10.1007/s12110-013-9173-0