Fig. 3: Relationships between partial residual richness of birds (that is, richness not explained by other predictors of the multivariate model) and each model predictor.
From: The geography of climate and the global patterns of species diversity
a,b, Partial residual richness versus climate area and isolation. c,d, Partial residual richness versus climate itself here represented by the first two principal components. The grey shading around each regression line represents the 95% confidence interval. Identical patterns are observed for other tetrapod groups (Extended Data Figs. 2 and 3).
