Declining moose population in upper Midwest may be due to climate change | PRI.ORG
In the last 20 years, the moose population in the northern Midwest has declined. Researchers believe this may be due to climate change and warmer temperatures as well as an increase in the number of predators to moose.
..."So, in winter, moose tend to exhibit heat stress at 20 degrees Fahrenheit. Well, most of our winter was about 20 degrees Fahrenheit, so these animals are stressed out for the entire winter," Moore said.
..."And so, even if wolves are mostly eating deer during their diet, when wolf numbers are high, they’re encountering moose more often, and so we’re also probably getting a little bit of increased predation by wolves as well, just because deer numbers are high," Moore said.
Flashback: Is carbon dioxide killing Minnesota moose?
According to the Fish and Wildlife Service, the number of Minnesota wolves grew by a factor of three (or even six) from 1973 to 2004. Doesn't it seem intuitive that a wolf population over 3,000 could have a significant impact on calf survival on a moose population of under 8,000?
2008: Moose multiplying in Scandinavia - UPI.com
OSLO, Norway, April 19 (UPI) -- Biologists say there are now record numbers of moose in Scandinavia -- the greatest population since the Ice Age.
By the end of the 20th century, there were 30 times as many moose as there had been 100 years earlier, Aftenposten reports.
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