Investigating economic specialization on the central Peruvian coast: A reconstruction of Late Intermediate Period Ychsma diet using stable isotopes

Sara J. Marsteller, Natalya Zolotova, Kelly Knudson

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Objectives: Hypothetical models of socioeconomic organization in pre-Columbian societies generated from the rich ethnohistoric record in the New World require testing against the archaeological and bioarchaeological record. Here, we test ethnohistorian Maria Rostworowski's horizontality model of socioeconomic specialization for the Central Andean coast by reconstructing dietary practices in the Late Intermediate Period (c. AD 900-1470) Ychsma polity to evaluate complexities in social behaviors prior to Inka imperial influence. Materials and methods: Stable carbon and nitrogen isotope analysis of archaeological human bone collagen and apatite (δ13Ccol[VPDB], δ15Ncol[AIR], δ13Cap[VPDB]) and locally available foods is used to reconstruct the diets of individuals from Armatambo (n = 67), associated ethnohistorically with fishing, and Rinconada Alta (n=46), associated ethnohistorically with agriculture. Results: Overall, mean δ15Ncol[AIR] is significantly greater at Armatambo, while mean δ13Ccol[VPDB] and mean δ13Cap[VPDB] are not significantly different between the two sites. Within large-scale trends, adult mean δ13Cap[VPDB] is significantly greater at Armatambo. In addition, nearly one-third of Armatambo adults and adolescents show divergent δ15Ncol[AIR] values. Discussion: These results indicate greater reliance on marine resources at Armatambo versus Rinconada Alta, supporting the ethnohistoric model of socioeconomic specialization for the Central Andean coast. Deviations from large-scale dietary trends suggest complexities not accounted for by the ethnohistoric model, including intra-community subsistence specialization and/or variation in resource access.

Original languageEnglish (US)
JournalAmerican Journal of Physical Anthropology
DOIs
StateAccepted/In press - 2016

Fingerprint

Isotopes
specialization
reconstruction
Economics
Diet
Nitrogen Isotopes
Carbon Isotopes
economics
Apatites
Social Behavior
Agriculture
Collagen
trend
social behavior
Organizations
resources
Bone and Bones
Food
agriculture
food

Keywords

  • Bone collagen
  • Central Andes
  • Hydroxyapatite
  • Rimac Valley
  • Stable carbon and nitrogen isotope analysis

ASJC Scopus subject areas

  • Anatomy
  • Anthropology

Cite this

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title = "Investigating economic specialization on the central Peruvian coast: A reconstruction of Late Intermediate Period Ychsma diet using stable isotopes",
abstract = "Objectives: Hypothetical models of socioeconomic organization in pre-Columbian societies generated from the rich ethnohistoric record in the New World require testing against the archaeological and bioarchaeological record. Here, we test ethnohistorian Maria Rostworowski's horizontality model of socioeconomic specialization for the Central Andean coast by reconstructing dietary practices in the Late Intermediate Period (c. AD 900-1470) Ychsma polity to evaluate complexities in social behaviors prior to Inka imperial influence. Materials and methods: Stable carbon and nitrogen isotope analysis of archaeological human bone collagen and apatite (δ13Ccol[VPDB], δ15Ncol[AIR], δ13Cap[VPDB]) and locally available foods is used to reconstruct the diets of individuals from Armatambo (n = 67), associated ethnohistorically with fishing, and Rinconada Alta (n=46), associated ethnohistorically with agriculture. Results: Overall, mean δ15Ncol[AIR] is significantly greater at Armatambo, while mean δ13Ccol[VPDB] and mean δ13Cap[VPDB] are not significantly different between the two sites. Within large-scale trends, adult mean δ13Cap[VPDB] is significantly greater at Armatambo. In addition, nearly one-third of Armatambo adults and adolescents show divergent δ15Ncol[AIR] values. Discussion: These results indicate greater reliance on marine resources at Armatambo versus Rinconada Alta, supporting the ethnohistoric model of socioeconomic specialization for the Central Andean coast. Deviations from large-scale dietary trends suggest complexities not accounted for by the ethnohistoric model, including intra-community subsistence specialization and/or variation in resource access.",
keywords = "Bone collagen, Central Andes, Hydroxyapatite, Rimac Valley, Stable carbon and nitrogen isotope analysis",
author = "Marsteller, {Sara J.} and Natalya Zolotova and Kelly Knudson",
year = "2016",
doi = "10.1002/ajpa.23117",
language = "English (US)",
journal = "American Journal of Physical Anthropology",
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TY - JOUR

T1 - Investigating economic specialization on the central Peruvian coast

T2 - A reconstruction of Late Intermediate Period Ychsma diet using stable isotopes

AU - Marsteller, Sara J.

AU - Zolotova, Natalya

AU - Knudson, Kelly

PY - 2016

Y1 - 2016

N2 - Objectives: Hypothetical models of socioeconomic organization in pre-Columbian societies generated from the rich ethnohistoric record in the New World require testing against the archaeological and bioarchaeological record. Here, we test ethnohistorian Maria Rostworowski's horizontality model of socioeconomic specialization for the Central Andean coast by reconstructing dietary practices in the Late Intermediate Period (c. AD 900-1470) Ychsma polity to evaluate complexities in social behaviors prior to Inka imperial influence. Materials and methods: Stable carbon and nitrogen isotope analysis of archaeological human bone collagen and apatite (δ13Ccol[VPDB], δ15Ncol[AIR], δ13Cap[VPDB]) and locally available foods is used to reconstruct the diets of individuals from Armatambo (n = 67), associated ethnohistorically with fishing, and Rinconada Alta (n=46), associated ethnohistorically with agriculture. Results: Overall, mean δ15Ncol[AIR] is significantly greater at Armatambo, while mean δ13Ccol[VPDB] and mean δ13Cap[VPDB] are not significantly different between the two sites. Within large-scale trends, adult mean δ13Cap[VPDB] is significantly greater at Armatambo. In addition, nearly one-third of Armatambo adults and adolescents show divergent δ15Ncol[AIR] values. Discussion: These results indicate greater reliance on marine resources at Armatambo versus Rinconada Alta, supporting the ethnohistoric model of socioeconomic specialization for the Central Andean coast. Deviations from large-scale dietary trends suggest complexities not accounted for by the ethnohistoric model, including intra-community subsistence specialization and/or variation in resource access.

AB - Objectives: Hypothetical models of socioeconomic organization in pre-Columbian societies generated from the rich ethnohistoric record in the New World require testing against the archaeological and bioarchaeological record. Here, we test ethnohistorian Maria Rostworowski's horizontality model of socioeconomic specialization for the Central Andean coast by reconstructing dietary practices in the Late Intermediate Period (c. AD 900-1470) Ychsma polity to evaluate complexities in social behaviors prior to Inka imperial influence. Materials and methods: Stable carbon and nitrogen isotope analysis of archaeological human bone collagen and apatite (δ13Ccol[VPDB], δ15Ncol[AIR], δ13Cap[VPDB]) and locally available foods is used to reconstruct the diets of individuals from Armatambo (n = 67), associated ethnohistorically with fishing, and Rinconada Alta (n=46), associated ethnohistorically with agriculture. Results: Overall, mean δ15Ncol[AIR] is significantly greater at Armatambo, while mean δ13Ccol[VPDB] and mean δ13Cap[VPDB] are not significantly different between the two sites. Within large-scale trends, adult mean δ13Cap[VPDB] is significantly greater at Armatambo. In addition, nearly one-third of Armatambo adults and adolescents show divergent δ15Ncol[AIR] values. Discussion: These results indicate greater reliance on marine resources at Armatambo versus Rinconada Alta, supporting the ethnohistoric model of socioeconomic specialization for the Central Andean coast. Deviations from large-scale dietary trends suggest complexities not accounted for by the ethnohistoric model, including intra-community subsistence specialization and/or variation in resource access.

KW - Bone collagen

KW - Central Andes

KW - Hydroxyapatite

KW - Rimac Valley

KW - Stable carbon and nitrogen isotope analysis

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