Kellerspinne vs Grasläufer

Amaurobius ferox compared with Calidris subruficollis

Key Differences

• Kellerspinne is Least Concern while Grasläufer is Near Threatened.

Taxonomic Classification

Rank	Kellerspinne	Grasläufer
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Arthropoda (Gliederfüßer)	Chordata (Chordatiere)
Class	Arachnida (Spinnentiere)	Aves (Vögel)
Order	Araneae (Webspinnen)	Charadriiformes (Regenpfeiferartige)
Family	Amaurobiidae	Scolopacidae
Genus	Amaurobius	Calidris
Species	Amaurobius ferox	Calidris subruficollis

Evolutionary Relationship

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

Conservation Status

Kellerspinne

LC — Least Concern

Grasläufer

NT — Near Threatened

Physical Characteristics

Attribute	Kellerspinne	Grasläufer
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.

Grasläufer

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Grasläufer

Buff-breasted Sandpiper (Calidris subruficollis) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 4 countries:

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