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By: Douglas, George W. - Pojar, Jim - Meidinger, Del - McKeown, KarenType: ArticleIn: The Canadian field-naturalistVolume: 108Series:Issue: 4Date: 1994Page Range: 391--396Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Douglas, George W. - Pojar, JimType: ArticleIn: The Canadian field-naturalistVolume: 115Series:Issue: 2Date: 2001Page Range: 343--343Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: