Figure 22.4 A species–area curve for amphibians and reptiles. On the islands of the West Indies, larger islands contain more species of amphibians and reptiles. (a) When plotted as untransformed data, the relationship is a plateauing curve. (b) When plotted on a log scale, the relationship is a straight line.
Data from R. H. MacArthur and E. O. Wilson, The Theory of Island Biogeography (Princeton University Press, 1967).