Fig. 4: Stable isotopic analyses of the Fujia individuals.
From: Ancient DNA reveals a two-clanned matrilineal community in Neolithic China

a, δ15N values in bone and dentine collagen of Fujia male (n = 17) and female (n = 34) individuals, showing no significant difference by two-sided t-test, and no adjustments were made for multiple comparisons. AIR, atmospheric air standard. b, δ15N value comparisons between Fujia and Dawenkou culture sites. Two-sided t-tests compared Fujia (n = 51) with six contemporary sites: Jiaojia (n = 60, P = 5.9 × 10−4), Beiqian (n = 38, P = 0.0012), Liangwangcheng (n = 27, P = 0.0076), Dawenkou (n = 29, P = 2.9 × 10−4), Xigongqiao (n = 7, P = 0.13) and Dongjiaying (n = 14, P = 1.9 × 10−5; Supplementary Data 2). ***P value < 0.001; **P value < 0.01; NS, not significant; no adjustments were made for multiple comparisons. c, 87Sr/86Sr ratio in tooth enamel for Fujia individuals (n = 20) compared with values from wild plants (n = 53) collected across different lithological units and archaeological animal samples (n = 3). For box plots in all panels, centre lines denote median values; whiskers denote 1.5× the interquartile range; dots represent observed values.