Affiliation: | 1. Department of Natural Resources Management, College of Agriculture and Natural Resource Sciences, Debre Berhan University , Debre Berhan, Ethiopia solomon.ayele1972@gmail.comhttps://orcid.org/0000-0001-8882-1505;3. Department of Range and Forest Resources, Botswana University of Agriculture and Natural Resources , Gaborone, Botswana https://orcid.org/0000-0002-6716-6975 |