Strontium and stable isotope evidence of human mobility strategies across the Last Glacial Maximum in southern Italy

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  • Federico Lugli, Università di Bologna, Università di Modena e Reggio Emilia
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  • Anna Cipriani, Università di Modena e Reggio Emilia, Lamont-Doherty Earth Observatory
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  • Giulia Capecchi, Università degli Studi di Siena
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  • Stefano Ricci, Università degli Studi di Siena
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  • Francesco Boschin, Università degli Studi di Siena
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  • Paolo Boscato, Università degli Studi di Siena
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  • Paola Iacumin, degli Studi di Parma
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  • Federica Badino, Università di Bologna, Istituto per la Dinamica dei Processi Ambientali – CNR
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  • Marcello A. Mannino
  • Sahra Talamo, Max Planck Institute for Evolutionary Anthropology
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  • Michael P. Richards, Max Planck Institute for Evolutionary Anthropology, Simon Fraser University, Canada
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  • Stefano Benazzi, Università di Bologna, Max Planck Institute for Evolutionary Anthropology
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  • Annamaria Ronchitelli, Università degli Studi di Siena

Understanding the reason(s) behind changes in human mobility strategies through space and time is a major challenge in palaeoanthropology. Most of the time this is due to the lack of suitable temporal sequences of human skeletal specimens during critical climatic or cultural shifts. Here, we present temporal variations in the Sr isotope composition of 14 human deciduous teeth and the N and C stable isotope ratios of four human remains from the Grotta Paglicci site (Apulia, southern Italy). The specimens were recovered from the Gravettian and Epigravettian layers, across the Last Glacial Maximum, and dated between 31210–33103 and 18334–19860 yr cal bp (2σ). The two groups of individuals exhibit different 87Sr/86Sr ratios and, while the Gravettians are similar to the local macro-fauna in terms of Sr isotopic signal, the Epigravettians are shifted towards higher radiogenic Sr ratios. These data, together with stable isotopes, can be explained by the adoption of different mobility strategies between the two groups, with the Gravettians exploiting logistical mobility strategies and the Epigravettians applying residential mobility.

Original languageEnglish
JournalNature Ecology & Evolution
Volume3
Issue6
Pages (from-to)905-911
Number of pages7
DOIs
Publication statusPublished - 2019

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