Fig. 3: Observed data and ancestral state reconstructions mapped onto a maximum clade credibility tree for the Austronesian language phylogeny.
From: Coevolution of religious and political authority in Austronesian societies
The colours at the tips represent the observed levels of religious authority (left) and political authority (right) across 97 Austronesian societies. The shading of the branches represents the median posterior values of the continuous latent variables at each ancestral node, implied by the coevolutionary model. Darker shading indicates higher levels of authority in ancestral state reconstructions. The pie charts show the median posterior probabilities of each authority level for the following ancestral nodes: Proto-Austronesian (a), Proto-Malayo-Polynesian (b), Proto-Oceanic (c), Proto-Central-Pacific (d) and Proto-Polynesian (e). These five nodes were selected on the basis of previous work (see, for example, ref. 35).
