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By: Salter, Richard E. - Gollup, Michael A. - Johnson, Stephen R. - Koski, William R. - Tull, C. EricType: ArticleIn: The Canadian field-naturalistVolume: 94Series:Issue: 3Date: 1980Page Range: 219--238Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Nettleship, David N. - Tull, C. EricType: ArticleIn: The Canadian field-naturalistVolume: 84Series:Issue: 4Date: 1970Page Range: 369--376Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: