That depends on different populations, the dynamics of the populations and an ecosystem's support capacity.
In the case of the Charlevoix population, I do not remember what recovery target was set, but the number of individuals that we should be able to reach is around 200 at least to have a population that has a higher chance of survival, to prevent consanguinity problems and things like that. Protecting the habitat absolutely addresses this sort of situation.
I think that answers the question.