Stable isotope evidence for dietary diversification in the pre-Columbian Amazon
Carlo Colonese, Andre (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Winter, Rachel (University of Groningen. Groningen Institute of Archaeology)
Brandi, Rafael (Instituto Ambiente Humano)
Fossile, Thiago (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Fernandes, Ricardo (Institute for the Science of Human History)
Soncin, Silvia (University of York. Department of Archaeology)
McGrath, Krista Michelle (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals)
Von Tersch, Matthew (University of York. Department of Archaeology)
Marques Bandeira, Arkley (Universidade Federal Do Maranhão. Departamento de Oceanografa E Limnologia)

Data:	2020
Resum:	Archaeological research is radically transforming the view that the Amazon basin and surrounding areas witnessed limited societal development before European contact. Nevertheless, uncertainty remains on the nature of the subsistence systems and the role that aquatic resources, terrestrial mammalian game, and plants had in supporting population growth, geographic dispersal, cultural adaptations and political complexity during the later stages of the pre-Columbian era. This is exacerbated by the general paucity of archaeological human remains enabling individual dietary reconstructions. Here we use stable carbon and nitrogen isotope analysis of bone collagen to reconstruct the diets of human individuals from São Luís Island (Brazilian Amazon coast) dated between ca. 1800 and 1000 cal BP and associated with distinct ceramic traditions. We expanded our analysis to include previously published data from Maracá and Marajó Island, in the eastern Amazon. Quantitative estimates of the caloric contributions from food groups and their relative nutrients using a Bayesian Mixing Model revealed distinct subsistence strategies, consisting predominantly of plants and terrestrial mammals and variably complemented with aquatic resources. This study offers novel quantitative information on the extent distinct food categories of polyculture agroforestry systems fulfilled the caloric and protein requirements of Late Holocene pre-Columbian populations in the Amazon basin.
Ajuts:	European Commission 817911
Nota:	Unidad de excelencia María de Maeztu CEX2019-000940-M
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	Scientific reports, Vol. 10 (October 2020) , art. 16560, ISSN 2045-2322

DOI: 10.1038/s41598-020-73540-z
PMID: 33024191

11 p, 2.0 MB

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