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By: Toner, Maureen - Stow, Nicholas - Keddy, Cathy J.Type: ArticleIn: The Canadian field-naturalistVolume: 109Series:Issue: 4Date: 1995Page Range: 441--442Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Keddy, Cathy J. - Keddy, Paul A., - Planck, R. J.Type: ArticleIn: The Canadian field-naturalistVolume: 97Series:Issue: 3Date: 1983Page Range: 268--274Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: