NPS Photo
Releasing Aphthona to Biologically Control Non-Native Species
Unwanted Visitors
The diversity of the prairie ecosystem is also threatened by non-native plants. Of the 500 species of plants found in the park about 100 are non-native. Some non-natives, like Canada thistle, can out-compete native plants, create mono-cultures where native plants cannot survive. This loss of species diversity affects the food source for animals and the strength of the habitat. The park is currently waging war against non-native plant species.