Figure 2 Migratory strategy and latitudinal range are the best
predictors of body size. (a) Heatmap showing adjusted
R2 values for PGLS analyses of body size measures
against the predictors. Positive correlations coefficients were
recovered for each test. Numbers within each tile show the adjusted
R2 values and are coloured in green when significant
after adjusting p-values by FDR correction for multiple testing (FDR:
*** < 0.001 > ** < 0.01 >
* < 0.05). (b) Phenogram of mean body mass constructed in
Phytools (Revell, 2012)
showing abrupt differences in mean body mass between sister clades. Edge
colours indicate the three genera: Calonectris (purple),Ardenna (green) and Puffinus (orange). Heatmaps next to
the phenogram show the migratory strategy and the latitudinal range for
each species.