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  1. By: Erlien, Darryl A. - Tester, John R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 98
    Issue: 1
    Date: 1984
    Page Range: 1--6
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Hallman, Troy M. - Adams, Laura C. - Mullins,Debra J. - Tester, John R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 107
    Issue: 3
    Date: 1993
    Page Range: 370--372
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Tester, John R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 101
    Issue: 1
    Date: 1997
    Page Range: 13--21
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Whittaker, Joseph C. - List, Eric - Tester, John R. - Christian, Donald P
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 3
    Date: 1991
    Page Range: 403--405
    Publication Info: Ottawa Ottawa Field-Naturalists' Club