It is all a hypothetical. But, I made a model that has a harvest component for a grad school populatiin dynamics. It had all the best info at the time. It would predict everything you ask and more. The problem is predicting populations is hard. A ton of effort is put into conservation biology (which is basically the conservation of endangered species) but those models even prove to be pretty elusive.

The basic problem is scale and precision because depending on range size accounting for immigration and emigration is a known unknown. That and stochastic (random) events that can really throw off the trajectory of a population.