Shifts in Climate Foster Exceptional Opportunities for Species Radiation: The Case of South African Geraniums
Figure 2
Results of the climate niche overlap analysis.
The graphs show the mean and 95% confidence intervals across clades of the 2A) mean within clade pairwise species niche overlap and its 2B) proportion of rejected niche equivalency tests (proportion of species pairs ecologically distinct). D = Schoener niche overlap metric; PCH = accumulated positive chill units; HU = annual heat units; MAP = mean annual precipitation; WPP = mean winter precipitation; SPP = mean summer precipitation; WSR = mean winter solar radiation; SSR = mean summer solar radiation; WVPD = mean winter pressure deficit; SVPD = mean summer pressure deficit.