Also, since some people missed it: I wasn't talking about the effect of reintroducing wolves of Yellowstone (although they were mismanaged too). I was talking about the effect of messing with the ecosystem the first time.

Yellowstone: How Not To Manage A National Park https://kottke.org/15/01/yellowstone-how-not-to-manage-a-nat...

"By 1934, the Park Service acknowledged that whitetail deer, cougar, lynx, wolf, and possibly wolverine and fisher are gone from the Yellowstone.

What they didn’t say was that the Park Service was solely responsible for the disappearances."