12 mar 1977 ano - From 1977 to 1981, there was an average annual loss of 46 million ha^3 of forest biomass in Ontario

Descrição:

- this was due to insects and decay
- one of the main insects that altered a lot of the landscape was the spruce budworm

Adicionado na linha do tempo:

19 mar 2018

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ESTD17 Fauna and Flora of Toronto/ Rouge

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