1. Department of Wildlife and Range Management; Faculty of Renewable Natural Resources; CANR, KNUST; Kumasi; Ghana
2. School of Biology; The University of Nottingham; University Park; Nottingham; NG7 2RD; United Kingdom
3. Museum für Naturkunde, Berlin; Leibniz Institute for Research on Evolution and Biodiversity; Invalidenstrasse 43, 10115 Berlin; Germany