FIGURE 11 in Two new endemic species of Ameiva (Squamata: Teiidae) from the dry forest of northwestern Peru and additional information on Ameiva concolor Ruthven, 1924

FIGURE 11. Principle component analysis plots (PCA-env) representing niche separation of Ameiva aggerecusans and A. concolor (A), A. aggerecusans and A. nodam (B) and A. concolor and A. nodam (C) along the first two axes of the PCA. The solid contour line describes 100% and the dashed line 50% of the available environmental space (background). The density of the occurrences of the species by cell is depicted by the gray shadings. The correlation circles explain the contribution of all 19 climatic variables (BIO1–BIO19, see Appendix II for a more detailed explanation of the variables) on the two PC axes and contains the percentage of variation explained by each axe.