Hmmm...
“We have multiple females pregnant in at least two packs — Junction and Wapiti — that could be due to the mortality that we’ve experienced,” Smith said. “It’s broken apart the social structure, it’s messed with the hierarchy, and it’s actually produced more pups. Now this is a hypothesis, but this is what I would call an artificial stimulation of wolf reproductive capacity. By going in and killing them, you stimulate reproduction.”
So, in a nutshell, Montana, Idaho, and Wyoming "80%" of wolf deaths are attributed to humans thus, wolf hunters and trappers have single handedly significantly increased the Wyoming, Idaho, and Montana wolf population - per the theorized basis in the article.