a species occurring in an area outside its historically known natural range as a result of intentional or accidental dispersal by human activities (including exotic organisms, GMOs and translocated species see also native species, novel biota)
Species living in areas that are outside their natural historical range. Some, but not all exotic species are invasive, which means they compete with native species and cause other adverse environmental effects.
a species that has been transported by human activities, either intentionally or accidentally, into a region where it did not occur previously. Also called an alien species, non-indigenous species, or introduced species.
Also called introduced species; refers to plants and animals that originate elsewhere and migrate or are brought into a new area, where they may dominate the local species or in some way negatively impact the environment for native species.
Species or organisms found beyond their natural range or zone of potential dispersal. They have been intentionally or accidentally introduced outside their natural ranges. Also referred to as non-indigenous species. Examples are the zebra mussel, spiny waterflea, and sea lamprey.
A plant or animal species that is not native to a geographic area or ecosystem. Because they may have no natural pests once they are placed in a new location, many exotic species reproduce prolifically and replace native species or the habitats that support those species.
a plant or animal which has been introduced to a new area (intentionally or non intentionally), is often able to out compete its native counterparts because it lacks natural enemies to keep it in control.