Abstract
It has been generally assumed until recently that tropical rain forests are food-rich biomes for human foragers, and that prehistoric hunter-gatherers once lived completely independent of cultivated foods in such environments. An alternative hypothesis that such forests are actually food-poor for humans is proposed here. Specifically, that wild starch foods such as yams were so scarce and so hard to extract that human foragers could not have lived in such biomes without recourse to cultivated foods. The symbiotic relationship found today between tropical forest hunter-gatherers and farmers is not a recent phenomenon, but evolved long ago as an adaptive strategy for successfully exploiting the tropical forest.
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Headland, T.N. The wild yam question: How well could independent hunter-gatherers live in a tropical rain forest ecosystem?. Hum Ecol 15, 463–491 (1987). https://doi.org/10.1007/BF00888000
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DOI: https://doi.org/10.1007/BF00888000