Abundance and distribution of the genus Pinus in Capulálpam de Méndez, Sierra Juárez, Oaxaca Authors: Ríos-Altamirano, Arianne, Alfonso-Corrado, Cecilia, Aguirre-Hidalgo, Víctor, Ángeles-Pérez, Gregorio, Mendoza-Díaz, Magdalena M., Rodríguez-Rivera, Viviana, Roldán-Felix, Eusebio, Clark-Tapia, Ricardo