Exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models
| Autor: | Florencia Gordón, Valeria Bernal, Sergio Iván Pérez, Paula N. Gonzalez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
010506 paleontology
Archeology Historia y Arqueología MENDOZA Bayesian probability 01 natural sciences CACTI Historia HUMANIDADES Mendoza Ciencias Naturales 0601 history and archaeology Limit (mathematics) Mixing (physics) 0105 earth and related environmental sciences purl.org/becyt/ford/6 [https] 060102 archaeology Stable isotope ratio business.industry 06 humanities and the arts Archaeology Maize Oceanography Geography Agriculture Anthropology Cacti 13C-15N purl.org/becyt/ford/6.1 [https] business MAIZE |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP |
| Popis: | The contribution of maize to the diet of prehispanic populations that inhabited Mendoza Province, the thensouthernmost limit of agriculture in America, has been largely debated. Recently, on the basis of d13C data, it was suggested that cacti may mimic the pattern of human isotopic values attributed to maize consumption in this region. These studies relied on a univariate qualitative approach not suitable for accurately identifying dietary contribution when multiple potential resources are available. Here, we analyzed published δ13C and δ15N data by using Bayesian mixing models to estimate the proportional contributions of different plants and animals to the protein component and total diet. The effect of different fractionation values on these estimations was also assessed. Our results pointed out the importance of C3 vegetables in the prehispanic diet of these populations and only a small contribution of maize in the later Late Holocene sample from North Mendoza. Fractionation values had a significant effect on diet estimation. Overall, our study highlights the importance of obtaining fractionation values for local resources and increasing the diversity of isotopes analyzed for both the consumer and the potential resources to get a better understanding of diet variation in this region. Facultad de Ciencias Naturales y Museo |
| Databáze: | OpenAIRE |
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