LEAF LITTER AS A FOOD RESOURCE FOR RANGE LIVESTOCK - P. Rodriguez-Santillan; H. Bernal-Barragan; Ma. Cerrillo-Soto; H. Gonzalez-Rodriguez; A.S. Juarez-Reyes; Guerrero-Cervantes; R.G. Ramirez-Lozano (Journal of Animal and Plant Sciences, 2014)