Intensified exploitation of animal products in the Mediterranean Copper Age: isotopic evidence from Scaba ’e Arriu (Sardinia)

In this paper, dietary patterns are reconstructed across two phases represented at the Copper Age of Scaba ’e Arriu (Sardinia, Italy) via isotopic analysis of human and animal skeletal remains. Collagen carbon, nitrogen, and bioapatite carbon, and oxygen isotopes were used to infer diet, economic practices, and possibly different climatic conditions. Differential management of cattle, sheep/goats, and pigs was detected, with scarce animal products in the human diet in the Early Copper Age, followed by an increase in animal products identifiable in herbivore livestock, coincident with more rainy conditions in the Late Copper Age. Dietary information was then considered in light of the climatic periods already known for the period and compatible with the data presented. The study’s outcome indicates generally sedentary and endogamous groups with only a few outliers in both phases.