[WMarshal]

"I suspect wolves. How has the wolf population done over the same period of Moose decline?"

If Minnesota is having a very cold winter with deep, drifting snow the the wolves will dine well on moose. On crusted wind-blown snow a wolf can glide over the snow while the moose has to plow through it. Wolves always dine best in winter.

[spawn44]

It's no mystery. More grant money is needed to study a natural phenomenon that the left can't seem to understand and turn it into another global warming gravy train.

[TurboZamboni]

Plight of Minnesota moose not so dire as believed

So far, they said, a fifth of the adults have died — with predators, infections, parasites, or injuries listed as causes. And 74 percent of the calves died, a number that surprised researchers. The greatest number of calf deaths were attributed to wolves and bears. But another 11 died as a result of being collared: Nine were abandoned by their mothers, one died after the mother stepped on it during the collaring attempt, and the 11th died for unknown reasons.

http://www.startribune.com/local/245634081.html