Colonies were classified according to their bees' morphotype and mitotype African or European for each of the regions that were sampled, and their frequencies were subjected to chi-square tests for comparisons.
Las colonias se clasificaron de acuerdo con el morfotipo y mitotipo de sus abejas africanas o europeas para cada una de las regiones investigadas, y se compararon sus frecuencias por medio de pruebas de chi-cuadrada.