Exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models

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...

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Autores principales: Bernal, Valeria, González, Paula Natalia, Gordón, Florencia, Pérez, Sergio Iván
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Naturales
Maize
Cacti
Mendoza
13C-15N
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/98491
https://ri.conicet.gov.ar/11336/54345
https://www.journals.uchicago.edu/doi/10.1086/685560
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-98491
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Maize
Cacti
Mendoza
13C-15N
spellingShingle Ciencias Naturales
Maize
Cacti
Mendoza
13C-15N
Bernal, Valeria
González, Paula Natalia
Gordón, Florencia
Pérez, Sergio Iván
Exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models
topic_facet Ciencias Naturales
Maize
Cacti
Mendoza
13C-15N
description 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 δ<sup>13</sup>C and δ<sup>15</sup>N 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 C<sub>3</sub> 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.
format Articulo
Articulo
author Bernal, Valeria
González, Paula Natalia
Gordón, Florencia
Pérez, Sergio Iván
author_facet Bernal, Valeria
González, Paula Natalia
Gordón, Florencia
Pérez, Sergio Iván
author_sort Bernal, Valeria
title Exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models
title_short Exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models
title_full Exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models
title_fullStr Exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models
title_full_unstemmed Exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models
title_sort exploring dietary patterns in the southernmost limit of prehispanic agriculture in america by using bayesian stable isotope mixing models
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/98491
https://ri.conicet.gov.ar/11336/54345
https://www.journals.uchicago.edu/doi/10.1086/685560
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