Table 1.

Environmental association analysis between localities. Heatmap of partial Mantel tests (Spearman R partial correlation coefficients multiplied by 100) between overall venom phenotype or individual toxin gene frequencies against environmental variables, with geographical Euclidean distance matrix as covariate. Isolation by distance (IBD) is the null model. Proportion of shared alleles (Dps) was used as an index for neutral genetic differentiation. Variables selected with the BIOENV procedure to generate climatic and topography distance matrix are reported: BIO1–BIO9 correspond to measures related to temperature and BIO12–BIO19 to precipitation. Values with p < 0.05 are in bold.