Moose Population Survey Reveals Stability
Minnesota’s moose population appears to be stabilizing over the last five years. An estimated 3,710 northeastern Minnesota moose are currently in the state, according to the Department of Natural Resources.
“At this point, results do not indicate that moose are recovering in northeastern Minnesota,” said Glenn DelGiudice, DNR moose project leader, in a press release. “While it is encouraging to see that the decline in the population since 2012 has not been as steep, the apparent stability does not allow us to forecast the direction of the population’s trajectory into the future.”
The 2017 aerial moose survey estimate of 3,710 moose in the northeastern part of the state is statistically unchanged from last year’s estimate of 4,020. There is inherent uncertainty associated with survey estimates, because researchers will never see and count all of the animals being surveyed across the vast landscape. Statistically, the DNR is 90 percent certain that the population estimate is between 3,010 and 4,710 moose.
Research by the DNR continues to examine the complex potential causes of a moose population decline that started about a decade ago. The research also suggests the recent signs of stability could have resulted from higher calf survival. Much remains unknown. What is known is that factors including infections, parasites and other health issues are killing moose and predisposing them to being preyed on by wolves.
Each year the population estimate is compared to 2006, because the state’s highest moose population estimate of 8,840 occurred that year. Currently, northeastern Minnesota’s moose population is estimated to be 58 percent lower than in 2006.
The DNR releases an annual moose population estimate each year that can help indicate population trends but cannot predict future population levels.
Annual aerial moose surveys have been conducted each year since 1960 in the northeast. Adjustments were made in 2005 to make the survey more accurate and annual results more comparable.
This year’s survey involved flying 52 survey plots (13 square miles each) distributed across northeastern Minnesota from Jan. 5 to Jan. 14. The Fond du Lac Band of Lake Superior Chippewa and 1854 Treaty Authority contributed funding and provided personnel for the annual moose survey.
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