Ecosystem Monitoring & Research

Toronto and Region Conservation Authority (TRCA) collects scientific data to understand the changes affecting natural areas and watercourses, and to assess the ecological health of specific regions or environmental features.

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American stoat

Fantastic Field Finds of 2023 – Fauna
Explore our Environmental Monitoring team’s most captivating fauna discoveries from across TRCA’s jurisdiction in 2023.
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pink pyrola

Fantastic Field Finds of 2023 – Flora
View an update from TRCA’s Environmental Monitoring team on the most fascinating flora finds of 2023.
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spongy moth caterpillar

The Rise and Fall of the Spongy Moth
Good news! It appears that the invasive spongy moth has retreated in the Toronto region after a multi-year outbreak that started in 2018.
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