Clark's Grebe vs

Aechmophorus clarkii compared with Rhizocarpon oederi

Key Differences

• Clark's Grebe is Least Concern while is Extinct.

Taxonomic Classification

Rank	Clark's Grebe
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Podicipediformes (Podicipediformes)	Rhizocarpales (Rhizocarpales)
Family	Podicipedidae	Rhizocarpaceae
Genus	Aechmophorus	Rhizocarpon
Species	Aechmophorus clarkii	Rhizocarpon oederi

Conservation Status

Clark's Grebe

LC — Least Concern

EX — Extinct

Physical Characteristics

Attribute	Clark's Grebe
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Clark's Grebe

Habitat

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

Range

Found in Norway.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Clark's Grebe

The Clark's Grebe (Aechmophorus clarkii) is a species in the genus Aechmophorus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Rhizocarpon oederi is a crustose lichen historically recorded on siliceous rocks across parts of Europe and North America. It is now classified as Extinct (EX) on the IUCN Red List, representing one of the few lichen species confirmed to have been lost. Its disappearance is attributed to habitat destruction, air pollution, and the very specific microhabitat requirements that made it vulnerable.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway