Residential mobility and social identity in the periphery: strontium isotope analysis of archaeological tooth enamel from southeastern Arabia

Strontium isotope analysis represents an effective means of assessing mobility and reconstructing geographic residence patterns in archaeological populations. This biogeochemical technique was utilized to test the hypothesis that burgeoning interregional exchange networks and the occurrence of exotic grave goods in local tombs would correspond with a highly mobile population and a considerable immigrant presence during the Umm an-Nar (2700–2000 BC) period in the UAE. This region has been considered peripheral relative to larger civilizations in Mesopotamia and the Indus Valley, but played an important role as a major supplier of copper for the Persian Gulf. Individuals (n = 100) from six monumental Umm an-Nar tombs (Mowaihat; Tell Abraq; Umm an-Nar Island I, II, V; Unar 1) were selected to evaluate the geographic origins of tomb members. Mean ⁸⁷Sr/⁸⁶Sr ratios from local individuals interred at Mowaihat (0.708863 ± 0.000014; 1σ, n = 12), Tell Abraq (0.708873 ± 0.000020; 1σ, n = 27), Umm an-Nar Island (0.708902 ± 0.000079; 1σ, n = 33), and Unar 1 (0.708805 ± 0.000065; 1σ, n = 25) all display little isotopic variability, indicative of a population that was not highly mobile. However, coupled with archaeological evidence, three immigrants from Tell Abraq (n = 2) and Mowaihat (n = 1) identified by deviant strontium values suggest that this region was actively engaged in interregional interaction. Despite claims that these tombs acted as visible markers of territoriality legitimized by local ancestors buried within them, the presence of non-locals suggests that as commerce became increasingly important, definitions of kinship and social identity may have become more flexible to better meet the needs of the local community and those with whom they interacted.     

Morphological changes in domestic cattle in Gaul,from the second century BC to the fifth century AD: diversity of herds in the Seine valley (France) and northern Gaul

In Western Europe the transition from the Iron Age to the Roman period is the scene of a rapid economic and agro-pastoral evolution characterized in particular by a modification in the shape of the cattle. Understanding this phenomenon, its implementation mechanisms and development dynamics represents a major challenge in archaeozoology. In our study a local and regional approach of the evolution in cattle morphology is carried out first on the scale of the middle Seine valley, then of the northern Gaul. Its purpose is to observe and compare the evolution rates in domestic cattle between Middle La Tène and the fifth century AD, and with the help of a tight chronological and geographical grid, to estimate to what extent the shape of the cattle has been influenced by the indigenous cultures, the Roman economic pattern or even the environment. This osteometrical study is based on the Log Size Index method and on a measurement corpus of 12,969 bones collected on sites located on 117 communes in France (for most of them), Belgium, the Netherlands and Switzerland. The results we obtained show local specificities in terms of breeding methods and animal morphologies, observed on a very fine scale and taking place long before the Conquest. Moreover the growth patterns of the various herds happen to be different and to evolve under the impetus of the developing Roman economic pattern. This work thus points out an essential aspect of the agro-pastoral turmoil that took place in Gaul at the turning point of our era. The Roman pattern is not the cause of the morphological changes of the cattle, nor of the diversity in cattle shapes in Gaul, but it provokes a reshaping of the agricultural systems and a redefining of the breeding strategies which boost and completely change the cattle growth patterns.     

Mobility and diet in the Iron Age Pontic forest‐steppe: A multi‐isotopic study of urban populations at Bel'sk

High mobility among Scythian populations is often cited as the driving force behind pan‐regional interactions and the spread of new material culture c.700–200 bce , when burgeoning socioeconomic interactions between the Greeks, Scythian steppe pastoralists and the agro‐pastoral tribes of the forest‐steppe played out across the region. While interregional mobility central to warrior lifestyles is assumed to have been a defining feature of Scythian populations, strikingly few studies have investigated human mobility among communities located along the steppe and forest‐steppe boundary zone. Here, we document movement and dietary intake of individuals interred at Bel'sk, a large urban settlement in Ukraine, through strontium, oxygen and carbon isotope analyses of human tooth enamel. The results provide direct evidence for limited mobility among populations from Bel'sk, demonstrating the movement into, and out of, urban complexes. Strontium and oxygen isotope analyses reveal that groups at Bel'sk remained local to the urban complex. Dietary intake, reflected in carbon isotopes, was based on domesticated crops and livestock herding. The combination of low mobility alongside dietary evidence suggests local groups engaged in sedentary agro‐pastoral subsistence strategies that contrast sharply with the picture of highly mobile Scythian herders dependent on livestock portrayed in historical sources.