Alder vs Atlantic Stream Crayfish

Alnus glutinosa compared with Austropotamobius pallipes

Key Differences

• Alder is Least Concern while Atlantic Stream Crayfish is Endangered.

Taxonomic Classification

Rank	Alder	Atlantic Stream Crayfish
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Malacostraca (Crustaceans)
Order	Fagales (Beeches & Oaks)	Decapoda (Decapoda)
Family	Betulaceae	Astacidae
Genus	Alnus	Austropotamobius
Species	Alnus glutinosa	Austropotamobius pallipes

Conservation Status

Alder

LC — Least Concern

Atlantic Stream Crayfish

EN — Endangered

Physical Characteristics

Attribute	Alder	Atlantic Stream Crayfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder

Habitat

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

Range

Widely distributed across Africa (South Africa), Asia (India, Japan), Europe (6 countries), North America (Canada, United States), Oceania and the Pacific (Australia, New Zealand), and South America (Chile).

Atlantic Stream Crayfish

Habitat

Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.

Range

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

Alder

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

Atlantic Stream Crayfish

The Atlantic Stream Crayfish (Austropotamobius pallipes) is a species in the genus Austropotamobius. It is currently classified as Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and temperate coniferous forests within the Palearctic biogeographic realm.