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.
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 rat
Rattus norvegicus
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on native flora and fauna.
Canadian waterweed
Elodea canadensis
Status:
Established
Habitat:
Freshwater
Threats:
Creates single species stands. Outcompetes native plants. Reduces waterflow.
Chub
Squalius cephalus
Status:
Established
Habitat:
Freshwater
Threats:
Negative impacts on native salmonid species. Associated economic impacts.
Cotoneaster
Cotoneaster sp
Status:
Established
Habitat:
Terrestrial
Threats:
Outcompetes native species. Easily spread.
Coypu
Myocaster coypus
Status:
Established
Habitat:
Terrestrial
Threats:
Riparian, wetland habitats destruction
Invasive Species Ireland

Invasive Species Ireland