Fig. 3
From: Evolution within a language: environmental differences contribute to divergence of dialect groups
Observed vs predicted linguistic differences between the dialect groups. Predicted differences between the dialect groups calculated on the basis of (a) cultural differences (corresponds to fractions b, d, f and g in Fig. 2a), (b) environmental differences (corresponds to fractions a, d, e, and g in Fig. 2a), (c) environmental and cultural differences together (corresponds to fractions a, b, d, e, f and g in Fig. 2a), and (d) geographical distances (corresponds to fractions c, e, f and g in Fig. 2a). Cultural and environmental features are given in Table 2. N = 91, as pairing up the 14 dialect groups resulted with 91 linguistic difference values