Diet and gender in the Tiwanaku colonies: Stable isotope analysis of human bone collagen and apatite from Moquegua, Peru

Andrew D. Somerville, Paul S. Goldstein, Sarah I. Baitzel, Karin L. Bruwelheide, Allisen C. Dahlstedt, Linda Yzurdiaga, Sarah Raubenheimer, Kelly Knudson, Margaret J. Schoeninger

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Objectives: Gender and other facets of social identity play important roles in the organization of complex societies. This study reconstructs dietary practices within the Middle Horizon (AD 500-1000) Tiwanaku colonies in southern Peru to increase our knowledge of gendered patterns of consumption within this early expansive state. Methods: We use stable isotope analysis of 43 human bone samples representing 14 females, 20 males, 8 juveniles, and 1 indeterminate individual recovered from burial excavations at the sites of Rio Muerto and Omo in the Moquegua Valley. Data are contextualized by comparisons with previously published Tiwanaku isotope data from the period. Results: Our results find mean values of δ13Capatite = -7.3±1.6% (N = 36, 1SD), δ13Ccollagen=-12.3±1.5% (N = 43, 1SD), and δ15Ncollagen=8.4±1.6% (N = 43, 1SD). Between the sexes, Mann-Whitney U tests demonstrate significant differences in δ13Ccollagen (U = 74, P = 0.021), but no differences in δ13Capatite (U = 58, P = 0.095) or δ15Ncollagen (U = 116, P = 0.755) values. Conclusions: These data indicate relatively high C4 plant consumption among the Tiwanaku colonies, and support paleobotanical and archaeological evidence that maize (Zea mays) was the staple crop. Dietary values are similar overall between the sexes, but significantly higher δ13Ccollagen values in males is consistent with a model of gendered norms of consumption similar to that of the later Inca (AD 1438-1533), where males consumed more maize than females, often in the form of beer (chicha). Results provide new insights on social dynamics within the Tiwanaku colonies and suggest the increased importance maize consumption for males during the Tiwanaku expansion. Am J Phys Anthropol 158:408-422, 2015.

Original languageEnglish (US)
Pages (from-to)408-422
Number of pages15
JournalAmerican Journal of Physical Anthropology
Volume158
Issue number3
DOIs
StatePublished - Nov 1 2015

Fingerprint

Apatites
Peru
Isotopes
Zea mays
Collagen
Diet
Bone and Bones
gender
Burial
Values
Social Identification
role play
Nonparametric Statistics
funeral
organization
society
evidence

Keywords

  • Andean archaeology
  • Middle Horizon
  • paleodiet
  • stable carbon and nitrogen isotope analysis

ASJC Scopus subject areas

  • Anthropology
  • Anatomy

Cite this

Somerville, A. D., Goldstein, P. S., Baitzel, S. I., Bruwelheide, K. L., Dahlstedt, A. C., Yzurdiaga, L., ... Schoeninger, M. J. (2015). Diet and gender in the Tiwanaku colonies: Stable isotope analysis of human bone collagen and apatite from Moquegua, Peru. American Journal of Physical Anthropology, 158(3), 408-422. https://doi.org/10.1002/ajpa.22795

Diet and gender in the Tiwanaku colonies : Stable isotope analysis of human bone collagen and apatite from Moquegua, Peru. / Somerville, Andrew D.; Goldstein, Paul S.; Baitzel, Sarah I.; Bruwelheide, Karin L.; Dahlstedt, Allisen C.; Yzurdiaga, Linda; Raubenheimer, Sarah; Knudson, Kelly; Schoeninger, Margaret J.

In: American Journal of Physical Anthropology, Vol. 158, No. 3, 01.11.2015, p. 408-422.

Research output: Contribution to journalArticle

Somerville, AD, Goldstein, PS, Baitzel, SI, Bruwelheide, KL, Dahlstedt, AC, Yzurdiaga, L, Raubenheimer, S, Knudson, K & Schoeninger, MJ 2015, 'Diet and gender in the Tiwanaku colonies: Stable isotope analysis of human bone collagen and apatite from Moquegua, Peru', American Journal of Physical Anthropology, vol. 158, no. 3, pp. 408-422. https://doi.org/10.1002/ajpa.22795
Somerville, Andrew D. ; Goldstein, Paul S. ; Baitzel, Sarah I. ; Bruwelheide, Karin L. ; Dahlstedt, Allisen C. ; Yzurdiaga, Linda ; Raubenheimer, Sarah ; Knudson, Kelly ; Schoeninger, Margaret J. / Diet and gender in the Tiwanaku colonies : Stable isotope analysis of human bone collagen and apatite from Moquegua, Peru. In: American Journal of Physical Anthropology. 2015 ; Vol. 158, No. 3. pp. 408-422.
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abstract = "Objectives: Gender and other facets of social identity play important roles in the organization of complex societies. This study reconstructs dietary practices within the Middle Horizon (AD 500-1000) Tiwanaku colonies in southern Peru to increase our knowledge of gendered patterns of consumption within this early expansive state. Methods: We use stable isotope analysis of 43 human bone samples representing 14 females, 20 males, 8 juveniles, and 1 indeterminate individual recovered from burial excavations at the sites of Rio Muerto and Omo in the Moquegua Valley. Data are contextualized by comparisons with previously published Tiwanaku isotope data from the period. Results: Our results find mean values of δ13Capatite = -7.3±1.6{\%} (N = 36, 1SD), δ13Ccollagen=-12.3±1.5{\%} (N = 43, 1SD), and δ15Ncollagen=8.4±1.6{\%} (N = 43, 1SD). Between the sexes, Mann-Whitney U tests demonstrate significant differences in δ13Ccollagen (U = 74, P = 0.021), but no differences in δ13Capatite (U = 58, P = 0.095) or δ15Ncollagen (U = 116, P = 0.755) values. Conclusions: These data indicate relatively high C4 plant consumption among the Tiwanaku colonies, and support paleobotanical and archaeological evidence that maize (Zea mays) was the staple crop. Dietary values are similar overall between the sexes, but significantly higher δ13Ccollagen values in males is consistent with a model of gendered norms of consumption similar to that of the later Inca (AD 1438-1533), where males consumed more maize than females, often in the form of beer (chicha). Results provide new insights on social dynamics within the Tiwanaku colonies and suggest the increased importance maize consumption for males during the Tiwanaku expansion. Am J Phys Anthropol 158:408-422, 2015.",
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