1. Department of Forest Resources and Environmental Conservation, Virginia Tech, Blacksburg, VA
2. ProFOR Consulting, Cary, NC
3. Rayonier, Inc., Forest Research Center, Yulee, FL
4. Cooperativa de Productividad Forestal, Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile
5. Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
6. Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC