Fig. 1.

Carbon (δ¹³C) and nitrogen (δ¹⁵N) stable isotope data obtained on human (coloured circles) and faunal bone (dashed boxes) collagen from the southeastern Baltic and adjoining regions dating from the Subneolithic to the Early Bronze Age (data from Antanaitis and Ogrinc 2000; Antanaitis-Jacobs et al. 2009; Eriksson and Howcroft 2014; Eriksson et al. 2003, 2008; Fornander 2013; Heron et al. 2015; Laneman and Lang 2013; Piezonka et al. 2013; Piličiauskas et al. 2017a, b, 2018a; Reitsema 2012; Robson et al. 2016; Sjögren et al. 2016; Skipitytė unpublished data; Tõrv and Meadows 2015; this study) (Table S1)