It is logical to find that in areas where there are two competing species - the population of both will be reduced. There is a finite food supply for the two competing species. My neighbor has spotted two wolves in our area, in the last three years. In the last three years I've seen no less than 50 to 60 coyotes and no wolves. We also have mountain lions in this area. All three species are competing for a finite food supply. By a many fold factor - coyotes are the majority species.
Alaska is lacking many species. Skunks, raccoons, coyotes, mountain lions and any type of snake, that crawls.