Marcela Itzel Olguin-Alvarez, Consultant, Mexico City, Mexico, Craig Wayson, USDA Forest Service Washington DC, Washington, DC, United States, Ruth D. Yanai, SUNY College of Environmental Science and Forestry, Syracuse, NY, United States and Oswaldo Ismael Carrillo, National Forestry Commission of Mexico, National Forest Monitoring System, Guadalajara, JA, Mexico