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.
Black rat
Rattus rattus
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on native flora and fauna.
Brown rat
Rattus norvegicus
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on native flora and fauna.
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
Feral ferret
Mustela furo
Status:
Established
Habitat:
Terrestrial
Threats:
Threatens protected bird species.
Giant hogweed
Heracleum mantegazzianum
Status:
Established
Habitat:
Terrestrial
Threats:
Public health hazard. Competition with native species.
Giant rhubarb
Gunnera tinctoria
Status:
Established
Habitat:
Terrestrial
Threats:
Competition with native species.
Grey squirrel
Sciurus carolinensis
Status:
Established
Habitat:
Terrestrial
Threats:
Threatens red squirrel and woodlands.
Invasive Species Ireland

Invasive Species Ireland