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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 (δ13 C and δ15 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 δ13 C and δ15 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, δ13 C, and δ15 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.

Objectives: Colonial period New Zealand was lauded as a land of plenty, where colonists could improve their station in life and secure a future for their families. Our understanding of colonial experience, however, is often shaped by historical records which communicate a state‐sponsored version of history. This study aims to reconstruct the lives of settlers using isotopic evidence from the colonial skeletons themselves. Materials and methods: We use skeletal remains from recently excavated colonial sites in Otago (South Island, New Zealand) to illustrate the information that can be gleaned from the isotopic analysis of individuals. We use 87Sr/86Sr to identify European settlers, and δ13C and δ15N from collagen and hair keratin, as well as dental enamel carbonate δ13C to trace dietary change over their life‐courses. Results: Strontium isotope analysis shows that all adults in our sample are non‐local. Dietary isotopes show that while most individuals had relatively consistent childhood diet, one individual with more rural origins likely had seasonal use of resources during childhood. While some members of the population seem to have increased their meat intake in the new colony most do not have clear evidence for this. Discussion: We show the diversity of human experience in first‐generation New Zealanders both prior to emigration and in the new colony. Despite colonial propaganda claiming that circumstances in New Zealand were improved for all settlers, we have little evidence for this, aside from among individuals of potentially high status.

Experiences of childhood in colonial New Zealand are difficult to reconstruct from the historical record alone. Many of those who came to the colony were illiterate, and the Victorian tendency to avoid discussion of pregnancy and breastfeeding practices restricts our understanding of this important period. Bioarchaeological investigation, however, has the potential to illuminate the life stories of these first-generation Pākehā (European) settlers. Here we use isotopic evidence combined with dental pathology from children interred in a historic cemetery from Otago, New Zealand, to examine colonial childhood. We show how weaning practices in the colony differ from those experienced by their emigrant parents, highlight periods of illness likely associated with the weaning process, and bring to light the potential problems caused by maternal Vitamin D deficiency in the colony.

Interpreting early life experience in the past is of considerable interest to archaeologists, yet remains fraught with difficulty. Children are sensitive barometers of population health in general. In addition, infant feeding practices, and stresses experienced during infancy and childhood, have important effects on adult health and demographic changes. Understanding how diet and physiological stress interact is therefore of significance, but most bony indicators of stress have non‐specific etiologies that cannot be tied to events during childhood. The recent advent of incremental isotopic techniques means we now have the potential to identify periods of stress and dietary change during childhood through changes to stable carbon and nitrogen isotopic ratios during tissue formation. Being able to establish these individual weaning trajectories allows us to consider individuality in past weaning choices, giving the bioarchaeologist a more nuanced picture of the past. Here, we investigate whether combining paleopathological and isotopic data can give insight into the synergy between infant feeding and stress. We present a case study of a 5‐year‐old child from an early agricultural period archaeological site in the northern Atacama Desert, Chile. We show that, despite physiological stress likely affecting isotopic ratios in this individual, a weaning curve is visible and the interpretation of weaning behaviour is possible. In addition, we suggest that there is isotopic evidence for a micronutrient deficient weaning diet that may be correlated with bony evidence for pathology.

Este trabajo explora desde una perspectiva diacronica la dieta de las poblaciones prehispanicas de la region de Arica mediante analisis isotopicos de δ13C y δ15N, con el proposito de evaluar si hubieron cambios en los patrones dietarios desde los primeros agricultores (periodo Formativo, 3500-1500 AP) hasta la ocupacion Inka (periodo Tardio, 550-400 AP). En particular, examina el impacto del consumo del maiz en esta area, durante los periodos de mayor interaccion social con los centros politicos del altiplano. Nuestros resultados muestran una continuidad en el tiempo del consumo de recursos marinos de amplio espectro, mas que un giro hacia la dependencia del consumo del maiz. Ademas, se comparan y contrastan nuestros resultados con otros previamente publicados para otras regiones andinas, demostrando variaciones biogeograficas en el uso de los recursos, probablemente influenciados por los centros politicos Wari, Tiwanaku y luego el imperio Inka. Finalmente, el analisis isotopico incremental del colageno de la dentina en las muestras de infantes de las poblaciones de la region de Arica, indican que el maiz fue un recurso alimenticio durante la fase del destete, demostrando asi un consumo mas marcado durante la infancia que en la adultez. = This paper presents the results of isotopic analysis of prehistoric diet in the Arica region. Using δ13C and δ15N values obtained from human collagen we evaluate changes in dietary patterns from the early agricultural period (Formative 3500-1500 BP) through to Inka occupation (Late period 550-400 BP). In particular, we examine the impact of maize consumption in the area during periods of major social interaction with the political centres of the Andean highlands. Our results show the continuation of broadspectrum and marine resource use, rather than a shift to maize-reliance during prehistory. In addition, we compare and contrast our data with previously published work from other Andean regions. We demonstrate biogeographical variation in resource use, probably influenced by the political centres of Wari, Tiwanaku and later the Inka Empire. Contrastingly, results from incremental isotopic analysis of dentine collagen from the Arica infant populations indicate that maize was an important resource for infantweaning, and comprises a more obvious portion of childhood diet than that of adults.

Objectives The nature of the agricultural transition in Southeast Asia has been a topic of some debate for archaeologists over the past decades. A prominent model, known as the two-layer hypothesis, states that indigenous hunter-gatherers were subsumed by the expansion of exotic Neolithic farmers into the area around 2000 BC. These farmers had ultimate origins in East Asia and brought rice and millet agriculture. Ban Non Wat is one of the few archaeological sites in Southeast Asia where this model can potentially be tested. The site is located in the Mun River valley of Northeast Thailand, and divided into 12 phases that span over 2,000 years, from about 1750 BC to the end of the Iron Age (ca. 500 AD). These phases exhibit successive cultural changes, and current interpretation of the site is of an early hunter-gatherer population, with agriculturalists immigrating into the later phases. Methods We analyzed strontium, oxygen, and carbon isotopes in tooth enamel from over 150 individuals, dating from the Neolithic to Iron Age, to assess extrinsic origins and differences in diet between early and later phases. Results We find evidence of dietary and cultural differences between groups at Ban Non Wat during its early occupation, but little evidence for immigration from distinct environments beyond the Khorat Plateau of Northeast Thailand. Conclusions The lack of consistent isotopic differences between early and later Neolithic occupants at Ban Non Wat means that the site does not conclusively support the two-layer hypothesis. Am J Phys Anthropol 158:141–150, 2015. © 2015 Wiley Periodicals, Inc.

Biological anthropological research, the study of both modern and past humans, is a burgeoning field in the Indo-Pacific region. It is becoming increasingly apparent that the unique environments of the Indo-Pacific have resulted in an archaeological record that does not necessarily align with those in the northern hemisphere. New, regionally-specific archaeological models are being developed, and biological anthropological research has an important role to play in establishing past human experience within these models. In the Indo-Pacific, research using ancient and modern human tissues is adding insight into global processes of prehistoric settlement and migrations, subsistence change and human biosocial adaptation. This review synthesises current themes in biological anthropology in this region. It highlights the diverse methods and approaches used by biological anthropologists to address globally-relevant archaeological questions. In recent decades a collaborative approach between archaeologists, biological anthropologists and local communities has become the norm in the region. The many positive outcomes of this multi-disciplinary approach are highlighted here through the use of regionally-specific case studies. This review ultimately aims to stimulate further collaborations between archaeologists, biological anthropologists and the communities in the region, and demonstrate how the evidence from Indo-Pacific research may be relevant to global archaeological models.

Aims and objectives: The transition to an agricultural economy is often presumed to involve an increase in female fertility related to changes in weaning practice. In particular, the availability of staple crops as complementary foods is hypothesized to allow earlier weaning in agricultural populations. In this study, our primary aim is to explore whether this model fits the agricultural transition in the Atacama Desert using incremental isotopic analysis. A secondary aim of this study is to identify isotopic patterns relating to weaning, and assess how these may be differentiated from those relating to early life stress. Materials and methods: We use incremental isotopic analysis of dentine to examine changes in δ15N and δ13C values from infancy and childhood in sites of the Arica region (n = 30). We compare individuals from pre‐agricultural and agricultural phases to establish isotopic patterns and relate these patterns to maternal diet, weaning trajectory and physiological stress. Results We find that there is no evidence for systematic temporal or geographic variation in incremental isotopic results. Instead, results from all time periods are highly variable, with weaning completed between 1.5 and 3.5 years. Characteristics of the incremental profiles indicate that both in utero and postnatal stress were a common part of the infant experience in the Atacama. Discussion: In the Atacama Desert it appears that the arrival of agricultural crops did not result in uniform shifts in weaning behavior. Instead, infant and child diet seems to have been dictated by the broad‐spectrum diets of the mothers, perhaps as a way of mitigating the stresses of the harsh desert environment.