Invasive Species Northern Ireland

Kingsnake

Lampropeltis getula

Status:

Potential

Habitat:

Terrestrial

Threats:

Predates on native reptiles and possibly other native fauna. A potential disease and parasite vector

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Large-flowered waterweed

Egeria densa

Status:

Potential

Habitat:

Freshwater

Threats:

Competition with native plants, shading and blocking waterways, eutrophication and reduction of biodiversity

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Marbled crayfish

Procambarus fallax f. virginalis

Status:

Potential

Habitat:

Freshwater

Threats:

Potential threat of native crayfish. Potential threat to wetlands by extensive burrowing activities.

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Mesquite

Prosopis juliflora

Status:

Potential

Habitat:

Terrestrial

Threats:

Outcompetes native flora for recources

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Mummichog

Fundulus heteroclitus

Status:

Potential

Habitat:

Brackish

Threats:

Alter ecosystem structure, increase competition with native fish, population declines of native endangered fish species

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Muskrat

Ondatra zibethicus

Status:

Potential

Habitat:

Terrestrial

Threats:

They change the composition of native wetland vegetation, and their burrowing degrades river banks.

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Narrow-clawed crayfish

Pontastacus leptodactylus

Status:

Potential

Habitat:

Freshwater

Threats:

Can impact habitat structure and outcompete native crayfish

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Noble crayfish

Astacus astacus

Status:

Potential

Habitat:

Freshwater

Threats:

Negatively impact habitat structure with burrows, reduce native species, competition with native crayfish

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North American signal crayfish

Pacifastacus leniusculus

Status:

Potential

Habitat:

Freshwater

Threats:

Detrimental impacts on white clawed crayfish. Human health impacts.

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