A comparison of two pollinators: the introduced honey bee Apis mellifera and an indigenous bee Centris tarsata on cashew Anacardium occidentale in its native range of NE Brazil
Departamento de Zootecnia –CCA, Universidade Federal do Ceará, CP 12168, Campus do Pici, CEP 60355–970, Fortaleza –CE, Brazil,;Zoologisches Institut der Universität Tübingen, Auf der Morgenstelle 28, D-72076 Tübingen, Germany