Concentric Pelt Lichen vs Polar bear

Peltigera elisabethae compared with Ursus maritimus

Key Differences

Concentric Pelt Lichen is Not Evaluated while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Concentric Pelt Lichen	Polar bear
Kingdom	Fungi (เห็ดรา)	Animalia (สัตว์)
Phylum	Ascomycota (Sac Fungi)	Chordata (สัตว์มีแกนสันหลัง)
Class	Lecanoromycetes (Lecanoromycetes)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Peltigerales (Peltigerales)	Carnivora (สัตว์กินเนื้อ)
Family	Peltigeraceae	Ursidae (Bears)
Genus	Peltigera	Ursus (Bears)
Species	Peltigera elisabethae	Ursus maritimus

Conservation Status

Concentric Pelt Lichen

NE — Not Evaluated

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Concentric Pelt Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Sweden, and United States.

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.

Concentric Pelt Lichen

<em>Peltigera elisabethae</em>, commonly known as the Concentric Pelt Lichen, is a foliose lichen in the family Peltigeraceae, characterised by large, lobed thalli with a distinctive patterned upper surface and pale, veined undersides. Members of the genus Peltigera typically form symbiotic associations with either green algae or cyanobacteria (primarily Nostoc), the latter of which contributes nitrogen fixation capacity, making these lichens important contributors to nutrient cycling in boreal and tundra ecosystems. <em>Peltigera elisabethae</em> typically grows on soil, mossy rocks, tree bases, and forest floor litter in humid, cool-temperate to boreal habitats, and has been recorded in Norway, Sweden, and the United States, suggesting a circumpolar or widespread Northern Hemisphere distribution. The species has not been evaluated by the IUCN, so its formal conservation status remains unknown. Foliose Peltigera lichens generally thrive in habitats with clean air, as they are sensitive to atmospheric nitrogen deposition and sulfur dioxide pollution, making them useful bioindicators of air quality. Biological traits including thallus growth rates, individual longevity, and reproductive biology remain poorly documented for this particular species, though members of the genus are typically slow-growing, perennial organisms capable of persisting for decades on stable substrates.

Polar bear

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.