Raccoon
Procyon lotor
Status:
Potential
Habitat:
Terrestrial
Threats:
Voracious predator and can cause decline of waterfowl. disease vector.
Raccoon Dog
Nyctereutes procyonoides
Status:
Potential
Habitat:
Terrestrial
Threats:
Highly adaptable to new habitats. Voracious predator. Disease and parasite vector
Red king crab
Paralithodes camtschaticus
Status:
Potential
Habitat:
Marine
Threats:
Competition with native species.
Red swamp crayfish
Procambarus clarkii
Status:
Potential
Habitat:
Freshwater
Threats:
Outcompetes the native European crayfish. Degrades riverbanks through burrowing
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.
Ruffe
Gymnocephalus cernuus
Status:
Potential
Habitat:
Freshwater
Threats:
Negative impacts on native fish communities.
Russian vine
Fallopia baldschuanica
Status:
Established
Habitat:
Terrestrial
Threats:
Outcompetes native species.
Invasive Species Ireland

Invasive Species Ireland