Alexander's Swift vs Atlantic Stream Crayfish

Apus alexandri compared with Austropotamobius pallipes

Key Differences

• Alexander's Swift is Least Concern while Atlantic Stream Crayfish is Endangered.

Taxonomic Classification

Rank	Alexander's Swift	Atlantic Stream Crayfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Malacostraca (Crustaceans)
Order	Apodiformes (Apodiformes)	Decapoda (Decapoda)
Family	Apodidae	Astacidae
Genus	Apus	Austropotamobius
Species	Apus alexandri	Austropotamobius pallipes

Evolutionary Relationship

Alexander's Swift and Atlantic Stream Crayfish share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Alexander's Swift

LC — Least Concern

Atlantic Stream Crayfish

EN — Endangered

Physical Characteristics

Attribute	Alexander's Swift	Atlantic Stream Crayfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alexander's Swift

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

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.

Alexander's Swift

The Alexander's Swift (Apus alexandri) is a species in the genus Apus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.