1. Department of Ecology and Evolutionary Biology; University of California, Los Angeles; Los Angeles California
2. Departamento de Biologia; Universidade Federal de São Carlos; Sorocaba SP Brazil
3. Appalachian Laboratory; University of Maryland Center for Environmental Science; Frostburg Maryland
4. Instituto de Investigaciones en Ecosistemas y Sustentabilidad; Universidad Nacional Autónoma de México (UNAM); Morelia Michoacán México
5. Escuela Nacional de Estudios Superiores Unidad Morelia; Universidad Nacional Autónoma de México (UNAM); Morelia Michoacán México
6. Key Laboratory of Tropical Forest Ecology; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla Yunnan China
7. Institute of the Environment and Sustainability; University of California, Los Angeles; Los Angeles California