The Michigan Department of Natural Resources is planning some clean-up events at west Michigan state parks this month, and it could use some volunteers. Specifically, it tells us those who show up will be removing invasive plant species from dune areas. The work will be taking place on Saturday, March 31 at Saugatuck Dunes State Park and Warren Dunes State Park. Volunteers are invited to stop by at 10 a.m. to work through 1 p.m. at both parks. They will be removing honeysuckle, Japanese barberry and other invasive shrubs that threaten the dunes. In each case, volunteers are reminded to dress for outdoor work. Volunteers can show up to either state park at 10 a.m. on the 31st and go to the parking area.