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By: Smits, Cor M. M. - Slough, Brian G.Type: ArticleIn: The Canadian field-naturalistVolume: 107Series:Issue: 1Date: 1993Page Range: 13--18Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Smits, Cor M. M. - Slough, Brian G. - Yasui, CathyType: ArticleIn: The Canadian field-naturalistVolume: 103Series:Issue: 3Date: 1989Page Range: 363--367Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: