Number and distribution of cashew (Anacardium occidentale) pollen grains on the bodies of its pollinators, Apis mellifera and Centris tarsata

abeille domestique anacardium occidentale anacardo apidae apis mellifera body parts brasil brazil cashews centris honeybees insecte utile noix de cajou partes del cuerpo partie du corps polen polinizadores pollen pollination pollinators pollinisateur pollinisation useful insects