Diet of pre-Columbian societies in the Brazilian Amazon reconstructed

Diet of pre-Columbian societies in the Brazilian Amazon reconstructed
Human burial with incised ceramic at the archaeological site of Bacanga at Sao Luas Island. Credit: André Colonese

An international study led by the Institute of Environmental Science and Technology (ICTA-UAB) and the Department of Prehistory at the UAB has reconstructed the diets of pre-Columbian groups on the Amazon coast of Brazil, showing that tropical agroforestry was regionally variable.


During the past few decades, there has been an increased interest in the origin and evolution of pre-Columbian economies in the Amazon. However, the paucity of human remains from this period has limited our understanding of the contribution of plants, terrestrial animals and fish to individual diets and, therefore, their role in supporting population growth and cultural changes in this region before European contact.

This new study, published in Scientific Reports, used stable isotopic analysis and Bayesian Mixing Models to reconstruct the diets of human individuals living along the Brazilian

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