Robotic bees for crop pollination: Why drones cannot replace biodiversity Potts, Simon G. ; Neumann, Peter ; Vaissière, Bernard ; Vereecken, Nicolas J. Abstract Publication: Science of the Total Environment Pub Date: November 2018 DOI: 10.1016/j.scitotenv.2018.06.114 Bibcode: 2018ScTEn.642..665P