The evaluation and sampling process were conducted in colonies located in the municipalities of Fresnillo, Villanueva, Villa García, Guadalupe, Ojo Caliente and Zacatecas at altitudes between 1800 and 2400 m above sea level.
Se evaluaron y muestrearon colonias de abejas distribuidas en los municipios de Fresnillo, Villanueva, Villa García, Guadalupe, Ojo Caliente y Zacatecas, en altitudes entre 1800 y 2400 m sobre nivel del mar.