Figure 2.

Statistically significant relationships between social strength (number of social interactions) and Shannon's diversity index and Faith's phylogenetic diversity (after controlling for all covariates in the model). Strength was log₁₀ transformed and both strength and the two diversity measures were scaled (mean-centred and divided by 1 s.d.; [88]). p-value and marginal semi-partial R² for each fixed effect are reported.