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  1. By: Wapenaar, Wendela - De Bie, Fiep - Johnston, David - O'Handley, Ryan M. - Barkema, Herman W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 126
    Issue: 4
    Date: 2013-04-22
    Page Range: 288--294
    Publication Info: Ottawa Ottawa Field-Naturalists' Club