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By: Ewins, Peter J. - Andress, R. A. (Bud)Type: ArticleIn: The Canadian field-naturalistVolume: 109Series:Issue: 4Date: 1995Page Range: 418--425Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ewins, Peter J. - Hennessey, BennettType: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 4Date: 1992Page Range: 521--522Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ewins, Peter J. - Andress, R. A. (Bud)Type: ArticleIn: The Canadian field-naturalistVolume: 109Series:Issue: 4Date: 1995Page Range: 426--432Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Martin, Pamela A. - De Solla, Shane R. - Ewins, Peter J. - Barker, Michael E.Type: ArticleIn: The Canadian field-naturalistVolume: 119Series:Issue: 1Date: 2005-01-01Page Range: 58--63Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Ewins, Peter J. - Houston, C StuartType: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 3Date: 1992Page Range: 361--365Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: