This article is in the Jackson Hole News and Guide today. Although it isn’t firmly established, changes in cougar territory in the area near the Teton Wilderness may be due to pressure from wolves.
Jim and Holly Akenson have already found this to be the case in central Idaho (in Big Creek, deep in the Frank Church Wilderness). They found that wolves occupied the best habitat and cougars moved to the more rocky country. Read “Winter Predation and Interactions of Wolves and Cougars in the Central Idaho Wilderness” One caveat, the Idaho Fish and Game Commission, was compounding the difficulty cougar were having by encouraging a very high human “harvest” of cougar.
Anti-wolf folks don’t take into account the competition between carnivores and assume that all more wolves means is more elk or deer killed as prey in almost direct proportion. This is just plain wrong, especially when other predators are present.