From the Duluth News Tribune:

In yet another effort to untangle the mystery behind Minnesota’s diminished moose population, renowned wolf researcher David Mech is reporting a stark correlation between wolf population levels and survival of moose calves.

Mech was the lead author of a research paper published online this month in the journal Wildlife Society Bulletin that found rapidly increasing wolf numbers in Northeastern Minnesota from 2001 to 2009 coincided with the rapid demise of moose in the region — from nearly 9,000 moose in 2006 to fewer than 4,000 in recent winters.

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