Fig. 5
From: A global consistent positive effect of urban green area size on bird richness
Constrained analysis of principal coordinates (CAP) analysis plots showing the effect of a the number of islands (logAn) in a dataset on the AICc model selection profiles, and b the minimum number of species (logSmin) on an island in a dataset on the model shape profiles. CAP analysis is a redundancy analysis of the results of metric multidimensional scaling. The CAP analysis was undertaken to assess how much of the model selection profiles and model shape profiles were explained by our predictor variables (see “Methods”). Non-significant predictors were removed using a backwards selection procedure. Bray–Curtis dissimilarities were used in both cases