vs Polar bear

Comatricha filamentosa compared with Ursus maritimus

Key Differences

• is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Protozoa (原生動物)	Animalia (動物)
Phylum	Mycetozoa	Chordata (脊索動物)
Class	Myxomycetes (変形菌綱)	Mammalia (哺乳類)
Order	Stemonitidales	Carnivora (ネコ目)
Family	Stemonitidaceae	Ursidae (Bears)
Genus	Comatricha	Ursus (Bears)
Species	Comatricha filamentosa	Ursus maritimus

Conservation Status

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute		Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

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.

<em>Comatricha filamentosa</em> is a myxomycete belonging to the genus <em>Comatricha</em>, order Stemonitidales, class Myxomycetes. The species is distinguished within the genus by features of its filamentous capillitial threads and spore morphology, which are used as diagnostic characters in taxonomic identification. It has been recorded from Europe, where it inhabits decaying wood and plant litter in forest and woodland habitats. Like other plasmodial slime molds, <em>C. filamentosa</em> passes through a motile plasmodial feeding stage, consuming bacteria, fungi, and decomposing organic matter, before forming fruiting bodies under conditions of environmental stress or nutritional depletion. The resulting sporangia release spores suited for wind dispersal. This species plays a role in nutrient cycling within woodland ecosystems. No quantitative biological metrics are available, and it has not been assessed by the IUCN.

Polar bear

地球上で最大の陸上肉食動物であるホッキョクグマは700kgを超えることがあり、カナダからロシアまでの北極海氷域全体に分布する。ワモンアザラシとヒゲアザラシを狩るために海氷に依存する高度に特化した海洋哺乳類である。広大な距離を泳ぐことができる優れた泳者でもある。脆弱種に指定されており、気候変動による急激な北極海氷の消失で個体群が深刻な圧力を受けている。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway