The Marion Lake Story follows several years of a community’s efforts to get rid of an invader. Phragmites australis, a common reed of American wetlands, had overtaken Marion Lake on Long Island, New York. The highly invasive plant had grown very dense, sometimes reaching heights of nearly 4 m. Over 30 years, this species gradually formed a monoculture around the lake, choking the lakeshore and threatening to eliminate its rich ecological diversity.

Lori Luscher, a resident of the lake area and president of the committee to save the lake, wrote a grant request to the Department of Environmental Conservation to eradicate the nuisance reed. People in the community were skeptical and had lots of questions, but they established a goal to get rid of the phragmite and fill the wetlands around the lake with native vegetation so that wildlife would return to the ecosystem. The path toward rehabilitation posed...

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