Invasive plant suppression leads to new nonnative species dominance in marshes.
Invasive European common reed, Phragmites australis, is a problem in North American wetlands. Managers in Ontario used a herbicide to remove it from coastal marshes. The herbicide was effective in getting rid of over 99% of the invasive reed, but the marshes didn't fully recover. Instead, a new invasive plant, European frog-bit, took over in many areas.