Polar bear vs gaivina-d'asa-branca

Ursus maritimus compared with Chlidonias leucopterus

Key Differences

• Polar bear is Vulnerable while gaivina-d'asa-branca is Not Evaluated.

Taxonomic Classification

Rank	Polar bear	gaivina-d'asa-branca
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Mammalia (mamíferos)	Aves (ave)
Order	Carnivora (carnívoros)	Charadriiformes (Charadriiformes)
Family	Ursidae (Bears)	Laridae
Genus	Ursus (Bears)	Chlidonias
Species	Ursus maritimus	Chlidonias leucopterus

Evolutionary Relationship

Polar bear and gaivina-d'asa-branca share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

gaivina-d'asa-branca

NE — Not Evaluated

Physical Characteristics

Attribute	Polar bear	gaivina-d'asa-branca
Diet	Carnivore	—
Average Lifespan	25 years	—
Average Length	2.4 m	—
Average Weight	450.0 kg	—

Habitat & Geographic Range

Polar bear

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

gaivina-d'asa-branca

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States).

Polar bear

O maior carnivoro terrestre da Terra, o urso-polar pode ultrapassar 700 kg e e encontrado pelo gelo marinho artico, do Canada ate a Russia. Mamiferos marinhos altamente especializados que dependem do gelo marinho para cacas de focas e focas-barbadas. Excelentes nadadores capazes de percorrer grandes distancias em aguas abertas. Classificado como Vulneravel, com populacoes sob severa pressao devido a rapida perda de gelo marinho artico causada pelas mudancas climaticas.

gaivina-d'asa-branca

O gaivotão-de-asa-branca (Chlidonias leucopterus) está classificado como Não Avaliado (NE) na Lista Vermelha da IUCN. Ainda não foi avaliado de acordo com os critérios da Lista Vermelha da IUCN. Seu status de conservação ainda está por ser determinado.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway