Question

What are three ways invasive species are a threat to our environment?

Answer 1

What Makes a Species Invasive?

Introducing a species into a new environment may have a variety of outcomes. An exotic or alien species is one that has been introduced to a new place, but does not necessarily have negative consequences. For example, many fish species have been introduced into the Great Lakes for sport fishing.2 They have no documented negative impacts and provide recreational opportunities and a food source. However, when these alien species begin to have negative consequences in the new habitat, they are called invasive species. Invasive species may cause environmental harm, economic harm, or impact human health