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By: Peakall, David B - Noble, David G. - Elliott, John E. - Somers, J. D. - Erickson, GaryType: ArticleIn: The Canadian field-naturalistVolume: 104Series:Issue: 2Date: 1990Page Range: 244--254Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Baril, Alain - Elliott, John E. - Somers, J. D. - Erickson, GaryType: ArticleIn: The Canadian field-naturalistVolume: 104Series:Issue: 2Date: 1990Page Range: 273--284Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: