Fig. 4.
View of environmental units. a) Quercus liebmanni and Quercus laeta forest; b) Dam “La Laguna”, grassland and oak forest remnant; c) Homegardens, agricultural fields, palm scrublands and mexical in the southwest side of town; d) View of a homegarden and a traditional house with roof of palm leaves; e) Pseudomytrocereus fulviceps shrubland; f) Tillansia grandis and Agave potatorum in Cephalocereus colummna-trajanni shrubland