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By: Lien, Jon - Barry, FrancesType: ArticleIn: The Canadian field-naturalistVolume: 104Series:Issue: 1Date: 1990Page Range: 125--130Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Lien, Jon - Barry, Frances - Breeck, Karen - Zuschlag, UlrikeType: ArticleIn: The Canadian field-naturalistVolume: 104Series:Issue: 3Date: 1990Page Range: 414--420Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: