Alligator weed
Alternanthera philoxeroides
Status:
Potential
Habitat:
Freshwater
Threats:
Chokes up riverine habitats when it becomes established
American bullfrog
Lithobates catesbeianus
Status:
Potential
Habitat:
Freshwater
Threats:
Can outcompete and displace native species. Spreads diesease.
American lobster
Homarus americanus
Status:
Potential
Habitat:
Marine
Threats:
Highly adaptable to new environments and food sources. Highly reproductive.
American mink
Neovison vison
Status:
Established
Habitat:
Terrestrial
Threats:
Predates on native species. Highly mobile.
American skunk cabbage
Lysichiton americanus
Status:
Established
Habitat:
Terrestrial
Threats:
Since the species is able to build dense stands, smaller plants growing in wetlands are out-competed by shadowing.
Amur sleeper
Perccottus glenii
Status:
Potential
Habitat:
Freshwater
Threats:
Voracious predator of amphibians and fish. Outcompetes native species. Possible disease vector
Asian clam
Corbicula fluminea
Status:
Established
Habitat:
Freshwater
Threats:
Competition with native species. Biofouling.
Asian hornet
Vespa velutina
Status:
Potential
Habitat:
Terrestrial
Threats:
A highly aggressive predator of native insects, posing a significant threat to honey bees and other pollinators.
Asian rapa whelk
Rapana venosa
Status:
Potential
Habitat:
Marine
Threats:
Serious implications for marine bivalve survival.
Invasive Species Ireland

Invasive Species Ireland