Kunming Institute of Botany; World Agroforestry Center (ICRAF)

State Museum for Natural History Karlsruhe and Ilia State University Tbilisi

Universidad Nacional Autónoma de México

ICREA and ICTA-UAB

HUN-REN Centre for Ecological Research Institute of Ecology and Botany

Harvard University

University of the Witwatersrand, Johannesburg

Professor of Ecology, Ilia State University, Tbilisi, Georgia

Guru Gobind Singh IP University, New Delhi

Researcher