Figure 7.

Queen role in the social network differs across species (a) Node entropy plotted as a function of node strength. Grey circles, workers; magenta circles, queens. Boxplots of queen and worker strengths and entropies are inset, and asterisks correspond to statistical significance in Welch two-sample t-tests. (b) An example C. fellah network (refer also to figure 1e ), in which the queen has low entropy but average strength, and (c) an example P. rugosus network in which the queen has high strength but average entropy. Edge colour intensity and width correspond to pairwise interaction frequency (darker, more frequent). Circular nodes represent workers (coloured according to the proportion of time they spent in the foraging arena: darker, more time), while the square magenta node represents the queen.