Extended Data Fig. 9: Strontium isotopic signature of individuals from the Jabuticabeira II site.
From: Genomic history of coastal societies from eastern South America
Estimates of local origin based on 87Sr/86Sr values. We performed the Wilcoxon (two-sided) and t tests (two-sided) to investigate the significance of the differences between Group A (JabuticabeiraII_~2400BP burials) and Group B (Jabuticabeira II burials post-2200 BP). p-values = 0.017 and 0.036, respectively. σ and 3σ refer to 1 and 3 standard deviations from the mean of Group A.
