vs Oso Polar

Coelosphaerium confertum compared with Ursus maritimus

Key Differences

is Not Evaluated while Oso Polar is Vulnerable.

Taxonomic Classification

Rank		Oso Polar
Kingdom	Bacteria (Bacteria)	Animalia (Animals)
Phylum	Cyanobacteria (Cyanobacteria)	Chordata (cordados)
Class	Cyanobacteriia	Mammalia (mamíferos)
Order	Cyanobacteriales	Carnivora (carnívoros)
Family	Microcystaceae	Ursidae (Bears)
Genus	Coelosphaerium	Ursus (Bears)
Species	Coelosphaerium confertum	Ursus maritimus

Conservation Status

NE — Not Evaluated

Oso Polar

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute		Oso Polar
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

Found in Denmark.

Oso Polar

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.

Coelosphaerium confertum is a colonial planktonic cyanobacterium in the family Merismopediaceae, distinguished from related species by the relatively compact arrangement of cells within its gelatinous colonial matrix. Like other Coelosphaerium species, it forms roughly spherical mucilaginous colonies in which cells are positioned near the colony periphery. The genus belongs to the order Chroococcales and is characteristic of temperate freshwater habitats including lakes, ponds, and slow-moving rivers with moderate to high nutrient levels. Coelosphaerium confertum has been recorded from freshwater bodies in Denmark and other northern European countries, where it occurs as part of the phytoplankton assemblage during summer and early autumn months when temperatures are sufficient to sustain its growth. Cyanobacteria of this type are primary producers that fix atmospheric carbon and contribute to the base of aquatic food webs, supporting zooplankton and higher trophic levels. Under conditions of elevated phosphorus and nitrogen from agricultural runoff and wastewater, bloom-forming cyanobacteria can proliferate and alter the ecological character of water bodies. While Coelosphaerium confertum is not typically identified as a toxic bloom-former, its ecological role in nutrient cycling and as part of broader cyanobacterial assemblages is significant. No formal IUCN evaluation has been conducted.

Oso Polar

El mayor carnivoro terrestre de la Tierra, el oso polar puede superar los 700 kg y se encuentra en el hielo marino del Artico, desde Canada hasta Rusia. Es un mamifero marino altamente especializado que depende del hielo marino para cazar focas anilladas y barbadas. Excelente nadador capaz de cubrir grandes distancias en agua abierta. Clasificado como Vulnerable, sus poblaciones soportan una presion severa por la rapida perdida de hielo marino artico debida al cambio climatico.