Abstract
Governments and non-govermental organizations (NGOs) that plan projects to conserve the environment and alleviate poverty often attempt to modify rural livelihoods by halting activities they judge to be destructive or inefficient and encouraging alternatives. Project planners typically do so without understanding how rural people themselves judge the value of their activities. When the alternatives planners recommend do not replace the value of banned activities, alternatives are unlikely to be adopted, and local people will refuse to participate. Human behavioral ecology and behavioral economics may provide useful tools for generating and evaluating hypotheses for how people value economic activities in their portfolios and potential alternatives. This is demonstrated with a case example from southwestern Madagascar, where plans to create a Mikea Forest National Park began with the elimination of slash-and-burn maize agriculture and the encouragement to plant labor-intensive manioc instead. Future park plans could restrict access to wild tuber patches, hunting small game, and fishing. The value of these activities is considered using observational data informed by optimal foraging theory, and experimental data describing people’s time preference and covariation perception. Analyses suggest that manioc is not a suitable replacement for maize for many Mikea because the two crops differ in terms of labor requirements, delay-to-reward, and covariation with rainfall. Park planners should promote wild tuber foraging and stewardship of tuber patches and the anthropogenic landscapes in which they are found. To conserve small game, planners must provide alternative sources of protein and cash. Little effort should be spent protecting lemurs, as they are rarely eaten and never sold.
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Notes
Kirby et al. (2002) reported median k/day and Pender reported k/year; I convert to k/month for comparison. In experiments of Kirby et al. (2002) with cash rewards, median k = 0.12/day, and for candy rewards, median k = 0.14/day. Pender (1996) conducted ten different experiments and reported k = 0.26–1.19/year.
A summary of the labor cost and time for each task: 360 min of foraging at 4.5 kcal/min; 15 min searching for firewood at 4.3 kcal/min; 90 min spent resting (1.2 kcal/min) while the tenrecs are being smoked; 240 min spent transporting the tenrecs to the market at 3.5 kcal/min; 120 min spent vending at resting metabolic rate (1.2 kcal/min); and finally, another 4 h at 3.5 kcal/min to transport the purchased manioc home [expenditure rates from Durnin and Passmore: collecting firewood (Durnin and Passmore 1967:51); resting (Durnin and Passmore 1967:39); walking at 4 kph (Durnin and Passmore 1967:42)].
References
Allais, M. (1953). Le comportement de l’homme rationnel devant le risque: Critique des postulats et axiomes de l’ecole americaine. Econometrica, 21, 503–546.
Alvard, M. (1995). Intraspecific prey choice by amazonian hunters. Current Anthropology, 36, 789–818.
Berkes, F. (2004). Rethinking community-based conservation. Conservation Biology, 18, 621–630.
Binswanger, H. P., & Sillers, D. A. (1983). Risk aversion and credit constraints in farmers’ decision-making: A reinterpretation. Journal of Development Studies, 20, 5–21.
Camerer, C. F., & Loewenstein, G. (2004). Behavioral economics: Past, present, and future. In C. F. Camerer, G. Loewenstein, & M. Rabin (Eds.), Advances in behavioral economics (pp. 3–51). Princeton: Russell Sage Foundation.
Chapin, M. (2004). A challenge to conservationists. World Watch, 17(6), 17–31. Nov–Dec.
Conklin, H. C. (1961). The study of shifting cultivation. Current Anthropology, 2, 27–61.
Crewe, E., & Harrison, E. (1998). Whose development? An ethnography of aid. London: Zed Books.
Durnin, J. V. G. A., & Passmore, R. (1967). Energy, work, and leisure. London: Heinemann Educational Books.
Fehr, E., & Gächter, S. (2000). Fairness and retaliation: The economics of reciprocity. Journal of Economic Perspectives, 14, 159–181.
Fox, R. H. (1953). Energy expenditure of Africans engaged in various rural activities. Ph.D. thesis, London University.
Frederick, S., Loewenstein, G., Reed, D., & Baumeister, R. F. (2003). Time discounting and time preference: A critical review. In G. Loewenstein, D. Read, & R. F. Baumeister (Eds.), Time and decision: Economic and psychological perspectives on intertemporal choice (pp. 13–86). New York: Russell Sage Foundation.
Gigerenzer, G., & Selten, R. (Eds.) (2001). Bounded rationality: The adaptive toolbox. Cambridge, MA: MIT.
Hardin, G. (1968). The tragedy of the commons. Science, 162, 1243–1248.
Hawkes, K., O’Connell, J. F., & Blurton Jones, N. G. (1991). Hunting income patterns among the Hadza: Big game, common goods, foraging goals and the evolution of the human diet. Philosophical Transactions of the Royal Society of London B, 334, 243–251.
Henrich, J., & McElreath, R. (2002). Are peasants risk-averse decision makers? Current Anthropology, 43, 172–181.
Henrich, J., Boyd, R., Bowles, S., Camerer, C., Fehr, E., & Gintis, H. (Eds.) (2004). Foundations of human sociality: Economic experiments and ethnographic evidence from fifteen small-scale societies. Oxford: Oxford University Press.
Hill, K. (1988). Macronutrient modifications of optimal foraging theory: An approach using indifference curves applied to some modern foragers. Human Ecology, 16, 157–197.
IUCN (International Union for Conservation of Nature) (2004). IUCN Red List of Threatened Species. www.iucnredlist.org.
Jarosz, L. (1993). Defining and explaining tropical deforestation: Shifting cultivation and population growth in Madagascar (1896–1940). Economic Geography, 69, 366–379.
Kelly, R. L. (1995). The foraging spectrum: Diversity in hunter-gatherer lifeways. Washington, DC: Smithsonian Institution Press.
Kirby, K. N., Godoy, R., Reyes-García, V., Byron, E., Apaza, L., Leonard, W., et al. (2002). Correlates of delay-discount rates: Evidence from Tsimane’ Amerindians of the Bolivian rain forest. Journal of Economic Psychology, 23, 291–316.
Kuznar, L. A. (2001). Risk sensitivity and value among Andean Pastoralists: Measures, models, and empirical tests. Current Anthropology, 42, 432–440.
Ledyard, J. O. (1995). Public goods: A survey of experimental research. In J. H. Kagel, & A. E. Roth (Eds.), The handbook of experimental economics (pp. 111–181). Princeton: Princeton University Press.
Mazur, J. E. (1984). Test of an equivalence rule for fixed and variable reinforcer delays. Journal of Experimental Psychology: Animal Behavior Processes, 10, 426–436.
Nisbett, R., & Ross, L. (1980). Human inference: Strategies and shortcomings of social judgment. Englewood Cliffs, NJ: Prentice-Hall.
Nisbett, R. E., & Wilson, T. D. (1977). Telling more than we can know: Verbal reports on mental processes. Psychological Review, 84, 231–259.
O’Brien, W. E. (2002). The nature of shifting cultivation: Stories of harmony, degradation, and redemption. Human Ecology, 30, 483–502.
Ostrom, E. (2000). Collective action and the evolution of social norms. Journal of Economic Perspectives, 14, 137–158.
Pender, J. L. (1996). Discount rates and credit markets: Theory and evidence from rural India. Journal of Developmeny Economics, 50, 257–296.
Razanaka, S., Grouzis, M., Milleville, P., Moizo, B., & Aubry, C. (Eds.) (1999). Sociétés paysannes, transitions agraires, et dynamiques ecologiques dans le sud-ouest de Madagascar. Antananarivo: CNRE-IRD.
Redford, K. H. (1990). The ecologically noble savage. Orion Nature Quarterly, 9, 25–29.
Redford, K. H., & Stearman, A. M. (1993). Forest-dwelling native amazonians and the conservation of biodiversity: Interests in common or in collision? Conservation Biology, 7, 248–255.
Ruttan, L. M., & Borgerhoff Mulder, M. (1999). Are east African Pastoralists truly conservationists? Current Anthropology, 40, 621–652.
Seddon, N., Tobias, J., Yount, J. W., Ramanampamonjy, J. R., Butchart, S., & Randrianizahana, H. (2000). Conservation issues and priorities in the Mikea Forest of South-west Madagascar. Oryx, 34, 287–304.
Smith, E. A. (1987). On fitness maximization, limited needs, and hunter-gatherer time allocation. Ethology and Sociobiology, 8, 73–85.
Smith, E. A., & Winterhalder, B. (1992). Natural selection and decision-making: Some fundamental principles. In E. A. Smith, & B. Winterhalder (Eds.), Evolutionary ecology and human behavior (pp. 25–60). New York: Aldine de Gruyter.
Smith, E. A., Bliege Bird, R., & Bird, D. W. (2003). The benefits of costly signaling: Meriam turtle hunters. Behavioural Ecology, 14, 116–126.
Snyderman, M. (1983). Optimal prey selection: The effects of food deprivation. Behaviour Analysis Letters, 3, 359–369.
Stephens, D. W., & Krebs, J. R. (1986). Foraging theory. Princeton, NJ: Princeton University Press.
Tsing, A. L., Brosius, J. P., & Zerner, C. (Eds.) (2005). Communities and conservation: Histories and politics of community-based natural resource management. Walnut Creek, CA: AltaMira.
Tucker, B. (2003). Mikea origins: Relicts or refugees? Michigan Discussions in Anthropology, 14, 193–215.
Tucker, B. (2004). Giving, scrounging, hiding, and selling: Minimal food sharing among Mikea of Madagascar. Research in Economic Anthropology, 23, 45–68.
Tucker, B. (2006a). A future discounting explanation for the persistence of a mixed foraging-horticulture strategy among the Mikea of Madagascar. In D. J. Kennett & B. Winterhalder (Eds.), Behavioral ecology and the transition to agriculture (pp. 22–40). Berkeley: University of California Press.
Tucker, B. (2006b). Testing the effects of wealth versus identity on risk and time preferences among Mikea, Vezo, and Masikoro of Madagascar. Paper presented at the American Anthropological Association annual meeting, San Jose, CA.
Tucker, B. (2007). Perception of interannual covariation and strategies for risk reduction among Mikea of Madagascar: Individual and social learning. Human Nature, doi:10.1007/s12110-007-9007-z.
Tucker, B., & Young, A. G. (2005). Growing up Mikea: Children’s time allocation and tuber foraging in southwestern Madagascar. In B. Hewlett & M. Lamb (Eds.), Hunter-gatherer childhoods (pp. 147–171). Piscataway, NJ: Transaction.
Tversky, A., & Kahneman, D. (1974). Judgment under uncertainty: Heuristics and biases. Science, 185, 1124–1131.
Warner, M. (1997). “Consensus” participation: An example for protected areas planning. Public Administration and Development, 17, 413–432.
Winterhalder, B. (1986). Diet choice, risk, and food sharing in a stochastic environment. Journal of Anthropological Archaeology, 5, 369–392.
World Bank/Office National pour l’Environnement (2003). Plan pour le developpement des Mikea (PDM). Antananarivo, Madagascar.
Wu Leung, W.-T. (1968). Food composition table for use in Africa. Rome: Food and Agriculture Organization of the United Nations.
Yount, J. W., Tsiazonera, & Tucker, B. (2001). Constructing Mikea identity: Past or present links to forest and foraging. Ethnohistory, 48, 257–291.
Acknowledgements
This paper has benefited greatly from comments by Pete Brosius, Flora Lu, Dan Steck, Sarah Hitchner, Dave Himmelfarb, Amber Huff, Elaina Lill, James Yount, Keri Goodman, and Ted Maclin. Research described in this paper was funded by Fulbright IIE (1997–1998), the National Science Foundation (1999), and travel grants from the University of North Carolina at Chapel Hill (1996), Ohio State University (2003, 2004), and the University of Georgia (2006). Thanks to the many research participants in the Mikea Forest and to Gervais Tantely, and to my colleagues at the Université de Toliara, Tsiazonera, Jaovola Tombo, and Tsimitamby.
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Tucker, B. Applying Behavioral Ecology and Behavioral Economics to Conservation and Development Planning: An Example from the Mikea Forest, Madagascar. Hum Nat 18, 190–208 (2007). https://doi.org/10.1007/s12110-007-9017-x
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DOI: https://doi.org/10.1007/s12110-007-9017-x