Polar bear vs

Ursus maritimus compared with Pseudoperonospora urticae

Key Differences

Polar bear is Vulnerable while is Not Evaluated.

Taxonomic Classification

Rank	Polar bear
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (cordados)	Oomycota (Oomycetes)
Class	Mammalia (mamíferos)	Peronosporea (Peronosporea)
Order	Carnivora (carnívoros)	Peronosporales (Peronosporales)
Family	Ursidae (Bears)	Peronosporaceae
Genus	Ursus (Bears)	Pseudoperonospora
Species	Ursus maritimus	Pseudoperonospora urticae

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.

Pseudoperonospora urticae e um oomiceto mildio biotrofico obrigatorio da familia Peronosporaceae, infectando especies de ortiga (Urtica). Causa amarelamento e clorose das folhas com esporo cinzento caracteristico na face inferior durante condicoes umidas. Sua especificidade ao hospedeiro para ortigas torna-o um modelo interessante para estudar a coevolucao entre patogenos oomicetos e seus hospedeiros silvestres.