Biodiversity Conservation and Phylogenetic Systematics

Fig. 4 Over 80 % of the variation in the sites’ Ws sums is explained by species richness ( upper
fi gure part ). There is still a strong relationship between species richness and the WS sums when
standardised by the number of phylogenies, suggesting that species rich sites also have more spe-
cies with high WS values ( lower fi gure part )