Pollination by Xylocopa olivacea Fabricius 1871 (Hymenoptera: Apidae) and potential benefits on Vigna unguiculata (L.) Walp. 1843 (Fabaceae) production in Djoumassi (North Region, Cameroon)
Yatahai Clément Mineo
Yatahai Clément Mineo
Laboratory of Zoology, Department of Biological Sciences, Faculty of Science, University of Maroua, P. O. Box 814 Maroua, Cameroon.