The above quote, a definition of invasive species from Executive Order 13112 on invasive species, clearly states that these are of great concern to the threats they pose to our economy, the natural ecosystems, and even human health.

The primary concern of the National Park Service (NPS) with invasive species is with the environmental harm they can do. The National Park Service strives to protect the "gems of biodiversity" that are found in many of our national parks. Invasive species are threats to that biodiversity due to their ability to severely modify the habitats they invade.

Select one of the diamonds to the right to learn more about invasive species.