245Fig. 2 Summed Ws values. The main fi gure shows the values standardized (= divided) by the
number of phylogenies present at the site. The numbers on top of each bar give the number of spe-
cies and phylogenies (in brackets and italics ) at each site. The small fi gure at the bottom shows the
non-standardized values
Assessing Hotspots of Evolutionary History with Data from Multiple Phylogenies...