Ontario Forest Biomonitoring Network

The Ontario Forest Biomonitoring Network (OFBN) monitors the health of mixed hardwood forests across southern and central Ontario. The data set includes:

  • Individual Tree Data: Decline Index and other measurements of visual stress symptoms of each tree within 111 plots
  • Decline Index: The Decline Index is a weighted average of tree stress symptoms (percent dead branches, percent slight or strong chlorosis (pale green-yellow leaves) and percent undersized leaves). Averaged for hardwood trees found within each of the 111 plots in each year.
  • Invasive Plant Species Presence Data
  • Salamander Data: numbers of individuals of salamander and other animal species in 14 plots
  • Tree Regeneration Data: monitors numbers of tree seedlings/saplings in 102 plots
  • Woody Debris Data: amount of woody debris on ground in 102 plots
Ministry contact: Environment, Conservation and Parks

Additional information

Tags
Geographic coverage
Ontario
Maintainer branch
Environmental Monitoring and Reporting Branch
Last Validated Date
November 30, 2021
Update frequency
As required

Ontario Forest Biomonitoring Network

Learn more about accessing data using different formats.

Date range: January 1, 1986 - December 31, 2018

  • SHP
    Plot Locations English

    Last Updated: November 30, 2021

    Zip file contains Microsoft Excel and GIS Shape files.

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  • XLSX
    OFBN Decline Index English

    Last Updated: November 30, 2021

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  • XLSX
    Individual Mature Trees English

    Last Updated: November 30, 2021

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  • XLSX
    Invasive Plant Species Presence English

    Last Updated: November 30, 2021

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  • XLSX
    Salamander Data English

    Last Updated: November 30, 2021

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  • XLSX
    Tree Regeneration English

    Last Updated: November 30, 2021

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  • XLSX
    Woody Debris English

    Last Updated: November 30, 2021

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Supporting Files

  • PDF
    Metadata Record English

    Last Updated: November 30, 2021

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  • PDF
    Metadata Record French

    Last Updated: November 30, 2021

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  • TXT
    README English

    Last Updated: November 30, 2021

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  • TXT
    README French

    Last Updated: November 30, 2021

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