Polar bear vs

Ursus maritimus compared with Pseudokephyrion alaskanum

Key Differences

Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (cordados)	Ochrophyta (Ochrophyta)
Class	Mammalia (mamíferos)	Chrysophyceae (Chrysophyceae)
Order	Carnivora (carnívoros)	Chromulinales (Chromulinales)
Family	Ursidae (Bears)	Dinobryaceae
Genus	Ursus (Bears)	Pseudokephyrion
Species	Ursus maritimus	Pseudokephyrion alaskanum

Conservation Status

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

NE — Not Evaluated

Physical Characteristics

Attribute	Polar bear
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

Pseudokephyrion alaskanum e um flagelado algal crisofito encerrado dentro de uma lorica em forma de vaso ou frasco, encontrado em habitats de agua doce incluindo lagos e turfeiras no Alaska e potencialmente outras regioes nordicas. E um organismo mixotrofico capaz de fotossintese e fagotrofia. Esta especie contribui para as comunidades de plancton de agua doce em ecossistemas aquaticos subarticos e boreais.