vs Polar bear

Chitinophaga ginsengisoli compared with Ursus maritimus

Key Differences

is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank		Polar bear
Kingdom	Bacteria (Bacteria)	Animalia (動物)
Phylum	Bacteroidota (バクテロイデス門)	Chordata (脊索動物)
Class	Bacteroidia (バクテロイデス綱)	Mammalia (哺乳類)
Order	Chitinophagales (Chitinophagales)	Carnivora (ネコ目)
Family	Chitinophagaceae	Ursidae (Bears)
Genus	Chitinophaga	Ursus (Bears)
Species	Chitinophaga ginsengisoli	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 Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan.

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.

Chitinophaga ginsengisoli is a Gram-negative, rod-shaped bacterium belonging to the family Chitinophagaceae within the phylum Bacteroidota. First isolated from ginseng field soil in South Korea, this species is a member of the genus Chitinophaga, a group of bacteria characterised by their ability to degrade chitin — the structural polysaccharide found in fungal cell walls and arthropod exoskeletons — via the production of extracellular chitinases. This enzymatic capability makes Chitinophaga species important players in soil nutrient cycling, contributing to the decomposition of organic nitrogen-rich materials and the mineralisation of chitin into bioavailable nitrogen compounds. Colonies of C. ginsengisoli typically exhibit yellow-orange pigmentation on culture media. Like other members of the genus, it is aerobic, mesophilic, and associated with terrestrial soil habitats, where it forms part of the complex microbial communities that drive soil health and fertility. The species' association with ginseng cultivation soils suggests potential interactions with the rhizosphere microbiome. As a bacterium, it has no IUCN conservation status; the designation Not Evaluated reflects the inapplicability of standard wildlife assessments to microorganisms. Research on Chitinophaga species has practical interest for biotechnology, including the development of biocontrol agents against fungal pathogens and chitin-degrading enzyme applications in agriculture.

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。