Campbell Islands Teal vs Common Bithynia

Anas nesiotis compared with Bithynia tentaculata

Key Differences

• Campbell Islands Teal is Vulnerable while Common Bithynia is Least Concern.

Taxonomic Classification

Rank	Campbell Islands Teal	Common Bithynia
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Aves (Birds)	Gastropoda (Gastropoda)
Order	Anseriformes (Anseriformes)	Littorinimorpha (Littorinimorpha)
Family	Anatidae	Bithyniidae
Genus	Anas	Bithynia
Species	Anas nesiotis	Bithynia tentaculata

Evolutionary Relationship

Campbell Islands Teal and Common Bithynia share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Campbell Islands Teal

VU — Vulnerable

Common Bithynia

LC — Least Concern

Physical Characteristics

Attribute	Campbell Islands Teal	Common Bithynia
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Campbell Islands Teal

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Bithynia

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

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

Campbell Islands Teal

The Campbell Islands Teal (Anas nesiotis) is a species in the genus Anas. It is currently classified as Vulnerable on the IUCN Red List. Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Bithynia

The common bithynia (<em>Bithynia tentaculata</em>) is a freshwater gastropod snail belonging to the family Bithyniidae. It is classified as Least Concern on the IUCN Red List and has been recorded across terrestrial and aquatic habitats in Belgium, Denmark, Norway, Sweden, and the United States. <em>Bithynia tentaculata</em> typically inhabits slow-moving or still freshwater environments such as lakes, ponds, canals, and rivers, often on muddy or sandy substrates where organic material is abundant. The species has a distinctive operculum that seals the shell opening, providing protection against desiccation and predators. It typically feeds by grazing on algae, detritus, and biofilms on submerged surfaces. The common bithynia serves as an intermediate host for several trematode parasites, making it ecologically significant in freshwater food webs and parasite life cycles. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway