Amphibian Map Lichen vs Polar bear

Rhizocarpon lavatum compared with Ursus maritimus

Key Differences

Amphibian Map Lichen is Data Deficient while Polar bear is Vulnerable.

Taxonomic Classification

Rank	Amphibian Map Lichen	Polar bear
Kingdom	Fungi (菌界)	Animalia (動物)
Phylum	Ascomycota (子嚢菌門)	Chordata (脊索動物)
Class	Lecanoromycetes (チャシブゴケ菌綱)	Mammalia (哺乳類)
Order	Rhizocarpales (Rhizocarpales)	Carnivora (ネコ目)
Family	Rhizocarpaceae	Ursidae (Bears)
Genus	Rhizocarpon	Ursus (Bears)
Species	Rhizocarpon lavatum	Ursus maritimus

Conservation Status

Amphibian Map Lichen

DD — Data Deficient

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

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

Habitat & Geographic Range

Amphibian Map Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, 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.

Amphibian Map Lichen

The Amphibian Map Lichen (Rhizocarpon lavatum) is a species in the genus Rhizocarpon. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

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。