Brook Alder vs Budapest slug

Alnus maritima compared with Tandonia budapestensis

Key Differences

• Brook Alder is Endangered while Budapest slug is Least Concern.

Taxonomic Classification

Rank	Brook Alder	Budapest slug
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Mollusca (Mollusks)
Class	Magnoliopsida (Dicots)	Gastropoda (Gastropoda)
Order	Fagales (Beeches & Oaks)	Stylommatophora (Stylommatophora)
Family	Betulaceae	Milacidae
Genus	Alnus	Tandonia
Species	Alnus maritima	Tandonia budapestensis

Conservation Status

Brook Alder

EN — Endangered

Budapest slug

LC — Least Concern

Physical Characteristics

Attribute	Brook Alder	Budapest slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Budapest slug

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Widely distributed across Europe (12 countries), North America (United States), and Oceania and the Pacific (New Zealand).

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Budapest slug

The Budapest Slug (Tandonia budapestensis) is a species in the genus Tandonia. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇬🇧 United Kingdom