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Moose--Minnesota; Moose--Diseases; Parasites; Cervidae--Minnesota


The succession of dominant cervids in northeastern Minnesota since settlement has passed from moose and woodland caribou to moose lo white-tailed deer and is now returning to moose. Results of recent studies show high moose densities in some areas are leading lo range deterioration and reduced net productivity. Pneumostrongylus tenuis, a common parasite of white-tailed deer but fatal to moose, is the etiological agent of moose disease. With increases in deer density, such as occurred in the 1920's and 30's, the reports of this disease in moose became more prevalent. Presently, where moose occur on the high deer density areas of northern Minnesota, moose mortality due to this parasite is disproportionately high.

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