Shea nut yields rise substantially where bees are present.
Field studies in Burkina Faso and Ghana report large increases in shea fruit set where pollinator access is unrestricted compared with exclusion controls. The effect is consistent across studies and large enough to be economically significant, which is why beekeeping and shea production are increasingly promoted together.
What this does not claim: This does not claim honey bees specifically are responsible — wild bees and other insects contribute substantially, and in some studies more than managed colonies. Nor does it claim the same effect size applies in every parkland.
- Assessment Report on Pollinators, Pollination and Food Production — Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) (2016) · Systematic review Link