Figure 1. Phylogenetic relationships between the 28 clades (27
species) of Australian agamid lizards included in this study, with
images of representative species from the Ctenophorus andDiporiphora & others (genera Amphibolurus ,Gowidon , Pogona , Rankinia , Tympanocryptis )
clades as well as basal Moloch horridus . Heatmap shows variation
in the concentration of total carotenoids and total pteridines among
species. Map shows extensive geographic sampling (186 skin samples from
79 individuals across 30 populations) against a measure of habitat
productivity (annual mean aridity index: monthly ratio of precipitation
to potential evaporation).