global decline in species numbers is one of the most significant issues facing us today and in the future. Plants, animals and natural systems provide us with clean water and air, food, medicine, shelter and protection from natural disasters. ("Ontario's local biodiversity," OurWorld 2.0 United nations University)
Canada has "unique" boreal forest (boreal: conifer) that are integral to managing climate change as they are responsible for significant carbon-oxygen exchange.
Canada has migratory bird species of great importance, like the Canada geese, that are critical to global migratory patterns.