Canada is a party to the Convention on Biological Diversity. The Government of Quebec plays a very active role, in the context of that convention, on behalf of local governments. Both Canada and the Government of Quebec have endorsed the Kunming-Montreal global biodiversity framework. It includes a number of goals and targets. Target 4 of that framework is the halt and reverse of species decline. It's not necessarily a hard legal obligation; it is a moral obligation and a commitment that both Canada and Quebec made in the context of that global biodiversity framework.
On September 18th, 2024. See this statement in context.