The Michigan Department of Natural Resources is participating in a study with other Great Lakes Basin states to try to determine the cause of declining muskrat populations.
Muskrat populations are falling substantially across the entire eastern United States, according to Dwayne Etter, a research biologist with the DNR’s Wildlife Division, who is heading up the study in Michigan.
“Muskrats are an indicator species – a keystone aquatic mammal,” Etter said.
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