|Looking up the a slope in the Nez Perce National Forest towards a pack of Idaho Wolves|
Unfortunately, the extinction of wolves from Idaho (whether of a different subspecies or not) is directly attributable to human interaction. And there exists no method for humans to resurrect the native Idaho wilderness environment. That said, mountain lions, lynx, coyotes, bears, and humans (the only other predator species in this environment) simply cannot keep the native Idaho pray species at bay (in addition to the non-native white-tailed deer, Odocoileus viginianus). The important point here is that humans caused the eradication of the wolves from this region, and while there's no way to put the native environment back, wolves did indeed exist in this ecosystem. While a different type of species introduced into an ecosystem is generally a horrible idea, I have yet to see a study which explains (other than speculation) how these re-introduced wolves are more harmful than the native wolf population. Further, the argument that the new Idaho wolves have thrived beyond expectation isn't necessary proof that introduction was a mistake. The introduction of a new predator species will immediately cause the predictor/prey balance to be altered, and equilibrium may take decades to occur. Thus, while the people arguing against this reintroduction are completely correct -- the reintroduction cannot preserve the wilderness or bring the wildness back to its pre-wolf-extinction state -- it is certainly nice to see wild Canis lupis back in Idaho.