I would like to see numbrs for elephant population, considering this study takes into consideration 30 years of heavy poaching and average life of african eleph

I would like to see numbrs for elephant population, considering this study takes into consideration 30 years of heavy poaching and average life of african elephant is at least 60-70 years, couldn't this be just smaller sample group? so obviously if you kill 90% of elephants and leave only 10%, most of them tuskless, their offsprings will be much more commonly tuskless, though it doesn't mean it won't return back by itself over time