Black-Necked Grebe vs brittlestar

Podiceps nigricollis compared with Amphiura chiajei

Key Differences

• Black-Necked Grebe is Endangered while brittlestar is Least Concern.

Taxonomic Classification

Rank	Black-Necked Grebe	brittlestar
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Echinodermata (Echinoderms)
Class	Aves (Birds)	Ophiuroidea (Ophiuroidea)
Order	Podicipediformes (Podicipediformes)	Amphilepidida (Amphilepidida)
Family	Podicipedidae	Amphiuridae
Genus	Podiceps	Amphiura
Species	Podiceps nigricollis	Amphiura chiajei

Evolutionary Relationship

Black-Necked Grebe and brittlestar share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black-Necked Grebe

EN — Endangered

brittlestar

LC — Least Concern

Physical Characteristics

Attribute	Black-Necked Grebe	brittlestar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-Necked Grebe

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

brittlestar

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

Black-Necked Grebe

Black-Necked Grebe (Podiceps nigricollis) 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.

brittlestar

The Brittlestar (Amphiura chiajei) is a species in the genus Amphiura. It is currently classified as Least Concern on the IUCN Red List. Native to Europe, inhabiting ecosystems characteristic of the region.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden