Kellerspinne vs Flussseeschwalbe

Amaurobius ferox compared with Sterna hirundo

Key Differences

• Kellerspinne is Least Concern while Flussseeschwalbe is Endangered.

Taxonomic Classification

Rank	Kellerspinne	Flussseeschwalbe
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Arachnida (Spinnentiere)	Aves (Vögel)
Order	Araneae (Webspinnen)	Charadriiformes (Regenpfeiferartige)
Family	Amaurobiidae	Laridae
Genus	Amaurobius	Sterna
Species	Amaurobius ferox	Sterna hirundo

Evolutionary Relationship

Kellerspinne and Flussseeschwalbe share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Kellerspinne

LC — Least Concern

Flussseeschwalbe

EN — Endangered

Physical Characteristics

Attribute	Kellerspinne	Flussseeschwalbe
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Kellerspinne

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Belgium, Canada, Denmark, Sweden, and United States.

Flussseeschwalbe

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Kellerspinne

The Black Laceweaver (Amaurobius ferox) is a species in the genus Amaurobius. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.

Flussseeschwalbe

Common Tern (Sterna hirundo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden 🇺🇸 United States