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Minnesota DNR proposes GPS-collar study of deer movement and predator impacts in prairie transition zones
Summary
The Minnesota Department of Natural Resources presented a study proposal to collar deer, coyotes and wolves to identify wintering grounds, causes of mortality, and movement along the Red River/Western border after new CWD detections and to update survival inputs used for harvest regulations.
The Minnesota Department of Natural Resources presented a proposal on June 26 to study deer survival, movement and predator impacts in northern prairie and agricultural transition zones, including areas along Minnesota's western border where new CWD detections have appeared.
DNR deer and elk research scientist Tyler Ormiller described plans to use GPS collars on white-tailed deer of all age classes and on coyotes and wolves to identify wintering areas, movement corridors (including along the Red River valley), cause-specific mortality and survival rates across seasons and age cohorts. Ormiller said improved survival estimates are needed to input into the DNR—9s population and harvest-regulation models. "Deer survival estimates are outdated in these northern prairies and transition zones," he told commissioners.
Why it matters: Where CWD appears or expands, managers need updated data about deer movement and winter congregation areas because those places can increase disease transmission. Commissioners asked whether the proposed research duplicates earlier southeast Minnesota work; DNR staff said the proposed northern prairie and transition-zone effort would answer location-specific questions not already covered and would include predator movement (wolves/coyotes) and cause-specific mortality.
Questions from commissioners: Commissioners probed whether the DNR already gathers similar data and asked for evidence the new study would add unique value; the DNR replied differing ecological contexts (prairie/Red River valley vs. earlier southeastern studies) justify the new work. Commissioners also asked whether the DNR can staff proposed positions; the DNR said some research positions remain vacant and the grant would support hiring to deliver the field effort.
Next steps: The DNR will refine cost and staffing details and how the study would inform management actions if funded. Commissioners requested more documentation on previous findings and how new data would change regulatory decisions.
Ending: The DNR framed the proposal as a timely, locally targeted research need tied to CWD concerns and to better inform harvest regulation and predator management in prairie-dominated northern Minnesota.
