Table 2.

The variable importance of the three single-ancestral populations.

Variable importance	Northern population	Central population	Southern population
BIO 3	0.0183	0.0283	0.0464
BIO 4	0.0235	0.1997	0.2898
BIO 6	0.2921	0.1693	0.0398
BIO 7	0.0298	0.0733	0.0545
BIO 12	0.1985	0.1882	0.1313
BIO 14	0.1415	0.0519	0.0359
BIO 15	0.1876	0.0516	0.0811
BIO 18	0.029	0.1452	0.2366
BIO 19	0.0585	0.0601	0.0561