subject: plant survey subject: Sand Dunes subject: Great Lakes
Perched sand dunes are vulnerable ecosystems along the Great Lakes, including Grand Sable Dunes in Pictured Rocks National Lakeshore. Spotted knapweed is a non-native plant species that has colonized these dunes and spread into increasingly more areas of t...
Biology Centaurea stoebe Ecology Great Lakes Invasive Species plant survey Sand Dunes Succession
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