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  1. By: Portman, Zachary - Orr, Michael - Griswold, Terry L.
    Type: Article
    In: Journal of Hymenoptera Research
    Volume: 71
    Date: 2019
    Page Range: 171--208
    Publication Info: Pensoft Publishers 2019
    Subjects: Anthophila  floral hosts  floral specialization  Foraging behavior  oligolecty  pollen collection  pollinators