ALIEN INVADERS

Native Species

• An organism which is indigenous to a given region or ecosystem.

Introduced Species

• Known as an exotic species• An organism that is not indigenous to a given

location but instead, has been accidentally or deliberately introduced to a new location by humans or by natural means.

How did they get here?

• Ballast Water• Canals (man made waterways)• Recreational Boaters/Ships• Accidentally Imported in boxes, on plants, etc• Pet Release• Aquaculture• Intentional Introductions

Ballast Water Introductions

Canals

Importation through the Mail

Pet Release

asian carp attack video

Intentional Introductions

• Introduced by scientist to decrease the population of native and non-native species.

• Introduced for sport• Introduced for aesthetic value

Other Invasive Species

Positive Effects of Introduced Species