학술논문

Strontium ( 87 Sr/ 86 Sr) isotope analysis of the Namu skeletal assemblage: A study of past human migration on Taumako, a Polynesian Outlier in the eastern Solomon Islands.
Document Type
Academic Journal
Author
Kramer RT; Department of Anatomy, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand.; King CL; Department of Anatomy, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand.; Buckley HR; Department of Anatomy, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand.; Jaouen K; Max Planck Institute of Evolutionary Anthropology, Leipzig, Germany.; Géosciences Environnement Toulouse-Observatoire Midi-Pyrénées, Toulouse, France.; Boyd DA; Department of Anthropology, College of Art and Sciences, University of Tennessee, Knoxville.; Kiko L; Solomon Islands National Museum, Honiara, Solomon Islands.; Trost M; Max Planck Institute of Evolutionary Anthropology, Leipzig, Germany.; Petchey F; School of Science, University of Waikato, Hamilton, New Zealand.; Kinaston RL; Department of Anatomy, Otago School of Medical Sciences, University of Otago, Dunedin, New Zealand.
Source
Publisher: Wiley-Blackwell Country of Publication: United States NLM ID: 0400654 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-8644 (Electronic) Linking ISSN: 00029483 NLM ISO Abbreviation: Am J Phys Anthropol Subsets: MEDLINE
Subject
Language
English
Abstract
Objectives: This study aims to assess if inter-island mobility can be identified during the Namu period (ca. 1,510-1800 AD) using 87 Sr/ 86 Sr analysis of dental enamel for individuals from the Namu burial ground on Taumako Island in the eastern Solomon Island Chain. Historic evidence from this region suggests that females migrated between the Duff, Reef, and Santa Cruz islands for marriage purposes. We hypothesize that observable trends in migrational ( 87 Sr/ 86 Sr) and dietary (δ 13 C and δ 15 N) isotopes can reveal the relationship between demographic factors, social status, diet, and female mobility on Taumako.
Methods: This research analyzes enamel 87 Sr/ 86 Sr for 58 individuals in the Namu skeletal sample. The 87 Sr/ 86 Sr results were compared with published dietary isotope data (bone collagen and dentin δ 13 C and δ 15 N values) and type/number of grave goods to assess whether trends within the data may be related to sex, age, or burial wealth.
Results: The results show that females display significantly higher 87 Sr/ 86 Sr values compared to males. One young adult female displayed a 87 Sr/ 86 Sr value that was +2SD outside the mean for the sampled individuals. A linear mixed-effects model and principle components analysis of 87 Sr/ 86 Sr, δ 13 C, and δ 15 N values suggest that wealth, sex, and age-cohort membership have an observable influence on the isotopic variation for the Taumako population.
Conclusion: We suggest that during the Namu period, Taumako was patrilocal and that some females migrated there from the nearby Santa Cruz and Reef islands. One female immigrated to Taumako from a geologically distinct region outside of the Duff, Reef, and Santa Cruz Island groups.
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