12 mar 1977 año - From 1977 to 1981, there was an average annual loss of 46 million ha^3 of forest biomass in Ontario
Descripción:
- this was due to insects and decay
- one of the main insects that altered a lot of the landscape was the spruce budworm
Añadido al timeline:
ESTD17 Fauna and Flora of Toronto/ Rouge
fecha:
