Seasonal Diversity and Abundance of Bee Pollinator Species in a Sudanese Agro-Ecological System (Burkina Faso, West Africa)
Drissa Coulibaly1, Katharina Stein2, Souleymane Konaté1, Karl-Eduard Linsenmair2
1University Nangui Abrogoua, Dept. of Research in Ecology and Biodiversity, Ivory Coast
Bees are the most important pollinators of many crops and wild plant species. The ecosystem service of pollination provided by these insects is crucial to maintain overall biodiversity and to secure crop yields worldwide. Especially improving the livelihood of smallholders in developing countries through higher crop yields is essential for achieving global food security and poverty reduction. However, ecosystem degradation, depletion of plant species, habitat fragmentation, use of insecticides and global warming constitute severe threats to these organisms with some being clearly at risk of extinction. Despite the great ecological and economic importance of bees as pollinators hardly anything is known about the bee species in West Africa. The study aimed to assess bee communities of a Sudanese agro-ecological system in Burkina Faso. We investigated the diversity and abundance of bees in near-natural savannah habitats and in nearby fields of the main cash crops of this area (cotton, sesame). Bees were caught with 288 coloured pantraps for the duration of one year, covering the dry and rainy season. A total of 97 species of bees belonging to 31 genera and 4 families (Apidae, Megachilidae, Halictidae, and Colletidae) were determined.
Keywords: Abundance, bees diversity, Burkina Faso, pollination, Sudanese area, West Africa
Contact Address: Katharina Stein, University of Wuerzburg, Theodor-Boveri-Institute of Bioscience, Dept. of Animal Ecology and Tropical Biology, Josef-Martin-Weg 52, 97074 Wuerzburg, Germany, e-mail: katharina.steinuni-wuerzburg.de