After recently spending a week in the Idaho wilderness during Winter, I obtained additional appreciation for the North American Rocky
Mountains. In fact, one morning during a snowshoe hike up towards the
Seven Devils in the
Nez Perce National Forest, we followed the snow tracks of a
group of wolves, saw evidence of a wolf predation, and eventually encountered a
howling individual. This encounter was particularly exciting because wolves had become extremely rare (and by some accounts extinct) in Idaho in the mid-20th Century. While it was wonderful to see wolves thriving in a native-wolf
environment, there exists a significant controversy over the reintroduction
of wolves into the Idaho wilderness.
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| Looking up the a slope in the Nez Perce National Forest towards a pack of Idaho Wolves |
Technically, all wolves are wild species of
Canis
lupus; however, there are many recognized (and some partially recognized) subspecies of
Canis lupus. There exists a debate among
scientists as to whether the type of wolves re-introduced into Idaho are
different (and to what degree) from their native cousins
Some scientists claim that newly-introduced wolves (often referred to as: Mackenzie Valley wolves
Canis lupus occidentalis & Manitoba wolves Canis lupus
griseoalbus) are a different subspecies of the wolves originally in many parts of Idaho, Wyoming, and Montana; said to be Rocky Mountain
wolves (Northern,
Canis lupus irremotus & Southern,
Canis lupus youngi). According to some records, when wolves were native to Idaho, the
wolves averaged approximately between 70-135 pounds. The types of wolves re-introduced into Idaho (which may or may not be a different subspecies than the two species which use to roam the area)
are commonly found between 90-160 pounds. While all of these wolves are indeed
Canis
lupus, many argue that the newly-introduced
wolves should not exist in Idaho where their smaller "Rocky Mountain" cousins formerly roamed. The
people against this controversial re-introduction argue that the "different subspecies" poses a much greater threat to pray species and livestock than the "native subspecies" ever did.
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 irradiation 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.