Additional file 1.

Position of individuals of A. mollis in geographic, morphological, and environmental space. Three-D scatterplot of populations according to their geographic coordinates and their individuals’ mean score on the first component of the Between Groups-PCA [46] on size-corrected shape data (a). For comparison a similar three-D scatterplot of associated environmental variation among sampling localities, summarized by the first principal component of a PCA on all 21 environmental variables (Additional file 3: Table S3), is presented in (b). The environmental variation is also represented by a scatterplot of the first and second principal component of this latter PCA (c). Note that a MANOVA on these PC scores showed that ecosystems are significantly different from each other in their environmental conditions (Wilks’ λ < 0.01, F5/34 = 8.56, p < 0.01). The position of puna individuals is indicated by the dashed ellipse. Symbols follow Figure 1.

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Alvarado-Serrano et al. BMC Evolutionary Biology 2013 13:160   doi:10.1186/1471-2148-13-160