Figure 2.

Mean deviation in latitudinal range extent from null expectations generated from 1000 replicates of randomly shuffling species range extents. Bar heights represent the proportional difference between mean predicted range extent and empirical range extents ([empirical–predicted]/whichever was the larger) in 10° latitudinal bands, positive values indicate greater than predicted extents, negative values indicate narrower than predicted extents. Southern Hemisphere represented by negative latitudes.