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  1. By: Cockerell, Theodore D. A. (Theodore Dru Alison), - Bequaert, Joseph C. (Joseph Charles), - Cockerell-Mackie-Ogilvie Expedition
    Publication info: New York City, The American Museum of Natural History, [1936]
    Holding Institution: American Museum of Natural History Library
    Subjects: Africa, Southern  Bees  Classification  Colletes  Congo (Democratic Republic)  Insects
  1. By: Roberts, Stuart - Potts, Simon - Biesmeijer, Koos - Kuhlmann, Michael, - Kunin, William E. - Ohlemüller, Ralf
    Type: Article
    In: BioRisk : biodiversity & ecosystem risk assessment
    Volume: 6
    Date: 2011
    Page Range: 1-18
    Publication Info: Sofia, Bulgaria Pensoft
    Subjects: bee  climate change  Colletes  Europe  pollinator  Risk assessment