Model results of the analysis of fig colour.

Colour was treated as a binomial response (green = 0, red = 1). We controlled for phylogenetic auto-correlation using Moran’s eigenvectors as covariates (not shown for clarity). Variables included in the analysis were fig placement, breeding system (monoecious, dioecious) and biogeographic region as factors, and fig size (log transformed), plant maximum height (square-root transformed), and maximum leaf area (log transformed) as variates. The optimal model retained just plant max. height and fig placement (Deviance explained = 27.8, Residual deviance = 53.6 on 56 d.f). The factor levels for fig placement are compared with axial figs.