If you follow the link it was from a 2002 study. I thought this year the elk in Yellowstone were down from 19,500 to 5000? As one park ranger put it We know the wolves are effecting the elk population.
The largest thing I hunted in San Diego was cotton tail rabbits. I'm well set up with firearms from 17M2 to S&W 500 Mag. Sadly, there little to shoot other than my paper targets and steel spinners.