Phragmites in the Coastal Zone
Surveys of the coastline along Lake Michigan and Lake Huron were conducted by the Michigan DNRE between April and June 2010 to detect and record Phragmites stands during low altitude flights. The MDNRE pilot and accompanying staff from MDNRE, Michigan Natural Features Inventory, and Huron Pines spotted the Phragmites stands from the plane, and then recorded the location with a GPS. Aerial surveys were conducted along Lake Michigan from New Buffalo north to Traverse City and from DeTour (west of Drummond Island) to Manistique and along Lake Huron from Greenbush (north of Oscoda) to the Mackinac Bridge. Aerial surveys have not been flown for the entire Michigan coastline.
Surveys of Phragmites have been conducted in the last several years along the Great Lakes shorelines by a number of organizations. As the methods for conducting Phragmites surveys has evolved, information about whether the stands are the native or the non-native forms was indicated when recording the GPS points. Earlier surveyors did not include this status when recording with GPS although the majority of the points are of the non-native form. Most of the Phragmites stands detected from aerial surveys in the Upper Peninsula as well as in the northeast Lower Peninsula have been verified by surveys on the ground. In addition, extensive on-the-ground surveys have been conducted along the shoreline in the northwest Lower Peninsula. Despite these efforts it is important to note that Phragmites survey points are not complete for Michigan's shorelines. This effort to verify and record locations of the invasive Phragmites is a work in progress. Further information about the locations of invasive Phragmites can be found at the Michigan Invasive Species Information Network (MISIN) site.
*Scale-dependant layer. Zooom in to view.