The Invasive Species Seasonal Crew Members (2 positions) work with the Invasive Species. Seasonal Crew Lead and other ISN Staff to implement the Michigan Invasive Species Grant. Program award and Save our Great Lakes Initiative grant, which funds these positions. Primary. responsibilities include working with partner organizations to control terrestrial invasive plant. species throughout Benzie, Grand Traverse, Leelanau, and Manistee counties. CO...