% pubman genre = article @article{item_3275851, title = {{Strontium (87Sr/86Sr) isotope analysis of the Namu skeletal assemblage: A study of past human migration on Taumako, a Polynesian Outlier in the eastern Solomon Islands}}, author = {Kramer, Robyn T. and King, Charlotte L. and Buckley, Hallie R. and Jaouen, Klervia and Boyd, Derek A. and Kiko, Lawrence and Trost, Manuel and Petchey, Fiona and Kinaston, Rebecca L.}, language = {eng}, isbn = {0002-9483}, doi = {10.1002/ajpa.24179}, publisher = {John Wiley {\&} Sons, Ltd}, year = {2021}, date = {2021-02}, abstract = {{Abstract Objectives This study aims to assess if inter-island mobility can be identified during the Namu period (ca. 1,510?1800?AD) using 87Sr/86Sr 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 (87Sr/86Sr) and dietary ($\delta$13C and $\delta$15N) isotopes can reveal the relationship between demographic factors, social status, diet, and female mobility on Taumako. Methods This research analyzes enamel 87Sr/86Sr for 58 individuals in the Namu skeletal sample. The 87Sr/86Sr results were compared with published dietary isotope data (bone collagen and dentin $\delta$13C and $\delta$15N 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 87Sr/86Sr values compared to males. One young adult female displayed a 87Sr/86Sr value that was +2SD outside the mean for the sampled individuals. A linear mixed-effects model and principle components analysis of 87Sr/86Sr, $\delta$13C, and $\delta$15N 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.}}, journal = {{American Journal of Physical Anthropology}}, volume = {174}, number = {3}, pages = {479--499}, }