Fig. 7.

The convex hull area, a proxy for species geographical range size, in each geographical distribution throughout time. Ancestral values inferred by the OUMV model. Dots represent the mean estimate during a time period, and vertical lines represent the associated standard error. The scale at the bottom represents the time before the present (in millions of years). The dashed line marks the beginning of the Pleistocene. Colours indicate geographical distributions: blue, AF-endemic; yellow, AF and other domains; red, outside the AF domain.