Significant human sources of invasive species introduction for Alaska include: 1) contaminated cargo shipments arriving by air, land, or sea; 2) restoration, development or shipping projects that can inadvertently carry seeds, spores or larvae from one place to another; and 3) intentional or unintentional releases or …

An invasive species is an organism that causes ecological or economic harm in a new environment where it is not native. An invasive species can be introduced to a new area via the ballast water of oceangoing ships, intentional and accidental releases of aquaculture species, aquarium specimens or bait, and other means.

Humans are most often directly responsible for introducing a species to a new region, whether intentionally or unintentionally. Species can become unintentionally transported globally, by catching a ride in places like ship ballast water, or locally, by attaching to boats or other equipment used by anglers and hunters.

An introduced species is a non native species that has one way or another been integrated into the native environment by human or other means. An invasive species on the other hand is an introduced organism that has become detrimental to the local environment.

Invasive species are primarily spread by human activities, often unintentionally. People, and the goods we use, travel around the world very quickly, and they often carry uninvited species with them. Ships can carry aquatic organisms in their ballast water, while smaller boats may carry them on their propellers.

Kudzu

Yes. In environmental science terms, we are generalists. Generalists are animals that can be invasive because they can survived anywhere, often to the detriment of the local wildlife. Generalists can even destroy a biome (a local ecosystem) by stressing the food sources of keystone species.

Ten of the World’s Most Invasive Species

• Asian Carp.
• Zebra Mussel (Dreissena polymorpha)
• Cane Toad (Rhinella marina)
• European Starling (Sturnus vulgaris)
• Kudzu (Pueraria montana var. lobata)
• Asian long-horned beetle (Anoplophora glabripennis)
• Small Indian mongoose (Herpestes auropunctatus)
• Northern Pacific seastar (Asterias amurensis)

Due to its presence in Australia, it is included on the list of the “world’s 100 worst invasive species”. The red fox originated from smaller-sized ancestors from Eurasia during the Middle Villafranchian period, and colonised North America shortly after the Wisconsin glaciation.

Reptiles

• Argentine black and white tegu (Tupinambis merianae)
• Black spiny-tailed iguana (Ctenosaura similis)
• Brown anole (Anolis sagrei)
• Burmese python (Python bivittatus) see main article: Burmese pythons in Florida.
• Tokay Gecko(Gekko gecko)
• Common house gecko (Hemidactylus frenatus)
• Green iguana (Iguana iguana)

crocodiles

Border Collies