Invasive Alien Species

The foreign species is a non-indigenous species that naturally does not reside in a particular ecosystem, but has been introduced into it, intentionally or unintentionally. The foreign species is also referred to as alohton, invasive, non-native, exotic, introduced or alien species. If the colonization or spread of a foreign species negatively affects biodiversity, human health or does the economic damage to the area to which it is introduced, then we consider this species invasive.