Species Accounts – Invasive Species Northern Ireland

Dwarf Surf Clam

Mulinia lateralis

Status:

Potential

Habitat:

Brackish

Threats:

Can from dense populations, displacing native fauna and dominating ecosystems

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Eastern baccharis

Baccharis halimifolia

Status:

Potential

Habitat:

Terrestrial

Threats:

The shrub can grow into dense impenetrable thickets that choke all other native vegetation. EU Species of Union Concern.

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Eastern mosquitofish

Gambusia holbrooki

Status:

Potential

Habitat:

Freshwater

Threats:

Competes with native fish for food, habitat and spawning areas and consumes their eggs leading to population declines

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Egyptian goose

Alopochen aegyptiacus

Status:

Potential

Habitat:

Terrestrial

Threats:

Hybridization with goose and duck species. Disease vector. Overgrazing. Outcompetes native fauna.

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Electric ant, Little fire ant

Wasmannia auropunctata

Status:

Potential

Habitat:

Terrestrial

Threats:

Associated with declines in reptile, bird and insect biodiversity. Enhance populations of some crop pests. Give a painful sting

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False acacia

Robinia pseudoacacia

Status:

Potential

Habitat:

Terrestrial

Threats:

Outcompes native plants. Changes nutrient cycles.

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Fanwort

Cabomba caroliniana

Status:

Potential

Habitat:

Freshwater

Threats:

Competition with native species. Clogging of waterways. EU Species of Union Concern

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Feral ferret

Mustela furo

Status:

Established

Habitat:

Terrestrial

Threats:

Threatens protected bird species.

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Few-flowered garlic

Allium paradoxum

Status:

Established

Habitat:

Terrestrial

Threats:

Outcompetes native species. Spreads quickly.

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