Nuttalls waterweed
Elodea nuttallii
Status:
Established
Habitat:
Freshwater
Threats:
Negative impacts on native macrophytes and invertebrates.
Pacific oyster
Magallana gigas
Status:
Established
Habitat:
Marine
Threats:
Encrusts hard surfaces
Parrots feather
Myriophyllum aquaticum
Status:
Established
Habitat:
Freshwater
Threats:
Competition with native macrophytes. Clogging of waterways.
Pirri-pirri bur
Acaena spp.
Status:
Established
Habitat:
Terrestrial
Threats:
Displaces native species
Quagga mussel
Dreissena rostriformis bugensis
Status:
Established
Habitat:
Freshwater
Threats:
Fouling, negative impacts on native species and local extinction of unionids.
Red-eared, yellow-bellied and Cumberland sliders
Trachemys scripta spp.
Status:
Established
Habitat:
Freshwater
Threats:
It disturbs aquatic habitats and poses a human health risk, being a possible reservoir for salmonella
Rhododendron
Rhododendron ponticum
Status:
Established
Habitat:
Terrestrial
Threats:
Competition with native plants.
Ruddy duck
Oxyura jamaicensis
Status:
Established
Habitat:
Terrestrial
Threats:
Negative impacts on the survival of the White-headed duck.
Russian vine
Fallopia baldschuanica
Status:
Established
Habitat:
Terrestrial
Threats:
Outcompetes native species.
Invasive Species Ireland

Invasive Species Ireland