Once introduced, invasive species spread quickly and aggressively, often because they don’t have natural predators. They then compete with native species for resources.
WHAT YOU'LL LEARN HERE
Understanding Invasive Species
Invasive plants have a tendency to spread and disrupt ecosystems in natural areas such as state and national parks and forest preserves. They can out-compete native plants, upsetting the balance of the ecosystem. They can make the habitat less suitable for native plants and animals. Invasive plant species are a significant and ongoing land management concern.
According to a 2010 tree census conducted by the U.S. Forest Service and The Morton Arboretum, buckthorn is the most common tree in the Chicago region. Common, or European, Buckthorn, and glossy buckthorn were brought to the midwest to be used as hedging material.
Certain plants in your yard might be causing natural areas to suffer. Some aggressive plants that have been commonly used in landscape beds can be migrated to natural areas when their seeds are spread by wildlife or wind. In a natural area not maintained by humans, invasive plants can choke out other plants destroying the ecosystem.