Life history and ancestry of the late Upper Palaeolithic infant from Grotta delle Mura, Italy.

The biological aspects of infancy within late Upper Palaeolithic populations and the role of southern refugia at the end of the Last Glacial Maximum are not yet fully understood. This study presents a multidisciplinary, high temporal resolution investigation of an Upper Palaeolithic infant from Grotta delle Mura (Apulia, southern Italy) combining palaeogenomics, dental palaeohistology, spatially-resolved geochemical analyses, direct radiocarbon dating, and traditional anthropological studies. The skeletal remains of the infant - Le Mura 1 - were directly dated to 17,320-16,910 cal BP. The results portray a biological history of the infant's development, early life, health and death (estimated at ~72 weeks). They identify, several phenotypic traits and a potential congenital disease in the infant, the mother's low mobility during gestation, and a high level of endogamy. Furthermore, the genomic data indicates an early spread of the Villabruna-like components along the Italian peninsula, confirming a population turnover around the time of the Last Glacial Maximum, and highlighting a general reduction in genetic variability from northern to southern Italy. Overall, Le Mura 1 contributes to our better understanding of the early stages of life and the genetic puzzle in the Italian peninsula at the end of the Last Glacial Maximum.

Exploring mobility in Italian Neolithic and Copper Age communities.

As a means for investigating human mobility during late the Neolithic to the Copper Age in central and southern Italy, this study presents a novel dataset of enamel oxygen and carbon isotope values (δ18Oca and δ13Cca) from the carbonate fraction of biogenic apatite for one hundred and twenty-six individual teeth coming from two Neolithic and eight Copper Age communities. The measured δ18Oca values suggest a significant role of local sources in the water inputs to the body water, whereas δ13Cca values indicate food resources, principally based on C3 plants. Both δ13Cca and δ18Oca ranges vary substantially when samples are broken down into local populations. Statistically defined thresholds, accounting for intra-site variability, allow the identification of only a few outliers in the eight Copper Age communities, suggesting that sedentary lifestyle rather than extensive mobility characterized the investigated populations. This seems to be also typical of the two studied Neolithic communities. Overall, this research shows that the investigated periods in peninsular Italy differed in mobility pattern from the following Bronze Age communities from more northern areas.

Examining dietary variability of the earliest farmers of south-eastern Italy.

Stable isotope analysis of human remains has been used to address long-standing debates regarding the speed and degree to which the introduction of farming transformed diet. In Europe, this debate has centered on northern and Atlantic regions with much less attention devoted to the arrival of farming across the Mediterranean. This study presents carbon and nitrogen stable isotope analyses of collagen from 19 human and 37 faunal remains from eight sites in the Apulia and Marche regions of south-eastern and central Italy, dating to the early phases of agricultural adoption during the first half of the 6th Millennium BC. Where collagen preservation permitted, sulfur stable isotope analysis was also performed. Overall, there was significant isotopic variation between the different geographic regions, although there was also considerable uncertainty in interpreting these data, especially given heterogeneous isotope values for fauna from site to site. By considering isotope data from each region separately, it was noticeable that the degree of carbon isotope enrichment in humans compared to fauna was higher for individuals buried near the coast, consistent with increased marine consumption. Coastal individuals also had higher sulfur isotope values. Nitrogen isotope values were very variable between individuals and regions and, in some cases, were consistent with very high plant food consumption. Overall, early "farmers" in south-east and central Italy consumed a wide range of foods, including marine, and had much more variable stable isotope values than those observed in central and northern Europe during this period, perhaps indicating a different mode for agricultural adoption.