
Midwest Karner Blue Butterfly populations have crashed and the effects of climate change are suspected to be the cause. Photo: U.S. Fish & Wildlife Service
By Howard Meyerson
We hear a lot about the effects of climate change these days. Polar ice caps are melting. Polar bears are threatened as a result. The Minnesota Star Tribune recently published an extensive report on how it will affect Minnesota’s forests called: “Saving the Great North Woods.” And then there is the new report by the National Wildlife Federation called “Nowhere to Run: Big Game Wildlife in a Warming World,” which can be found online at: nwf.org/sportsmen.
NWF said that historic restoration efforts for many game species like mule deer, moose, caribou and others are “expected to be set back by climate change.” It discusses how this will be a loss for sportsmen who have invested millions of dollars over the years in the restoration of many big game populations.
The report tells how moose can become heat-stressed by warming weather and how warmer temperatures can bolster tick and midge numbers and extend their range. Both insects are disease carriers. Deer ticks carry Lyme disease which affects humans while midges carry epizootic hemorrhagic disease that can be devastating to whitetail deer.
Here in Michigan, the effects of climate change are also being noted. An April 2013 special report by the Michigan Department of Natural Resources called “Changing Climate, Changing Wildlife: A Vulnerability Assessment of 400 Species of Greatest Conservation Need,” looked at birds, plants, mammals, reptiles, insects and amphibians. It found 61 percent of non-game species were vulnerable to climate change as were 17 percent of game species.
“It’s on our radar,” said Chris Hoving, co-author of the report and the Michigan DNR adaptation specialist. “What we found was that one fifth of the game species had some vulnerability to climate. As expected, moose was one. But one you might not expect was ruffed grouse.” Continue reading










