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 (动物界)
Phylum Bacteroidota (拟杆菌门) Chordata (脊索动物门)
Class Bacteroidia (擬桿菌綱) Mammalia (哺乳動物)
Order Chitinophagales (Chitinophagales) Carnivora (食肉目)
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

北极熊是地球上最大的陆地食肉动物,体重可超过700千克,分布于从加拿大到俄罗斯的北极海冰区。是高度特化的海洋哺乳动物,依赖海冰捕猎环斑海豹和髯海豹。是优秀的游泳者,能够横渡广阔的开阔水域。被列为易危种,因气候变化导致北极海冰迅速减少,种群正受到严重威胁。

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