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By: Berger, Robert P. - Baydack, Richard K.Type: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 2Date: 1992Page Range: 185--191Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Kiss, Brian W. - Johnstone, Scott K. - Berger, Robert P.Type: ArticleIn: The Canadian field-naturalistVolume: 124Series:Issue: 3Date: 2010-07-01Page Range: 270--271Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: