1. Department of Plant and Environmental Science, Copperbelt University, Kitwe, Zambia
2. National Directorate of Meteorology, Conakry, Guinea
3. USDA Forest Service, Rocky Mountain Research Station, Forestry Sciences Lab, Moscow, ID, USA
4. ORTARChI Chair for Environment and Development, Kitwe, Zambia
5. Department of Plant and Soil Sciences, University of Pretoria, PretoriaSouth Africa