Alligator weed
Alternanthera philoxeroides
Status:
Potential
Habitat:
Freshwater
Threats:
Chokes up riverine habitats when it becomes established
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.
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.
Black rat
Rattus rattus
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on native flora and fauna.
Bloody-red shrimp
Hemimysis anomala
Status:
Established
Habitat:
Freshwater
Threats:
Alteration of ecosystem dynamics. Competition with native species.
Brown Bullhead Catfish
Ameiurus nebulosus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish species.
Brown rat
Rattus norvegicus
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on native flora and fauna.
Invasive Species Ireland

Invasive Species Ireland