ナナスジホオジロ vs Polar bear

Emberiza tahapisi compared with Ursus maritimus

Key Differences

ナナスジホオジロ is Least Concern while Polar bear is Vulnerable.

Taxonomic Classification

Rank	ナナスジホオジロ	Polar bear
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Mammalia (哺乳類)
Order	Passeriformes (スズメ目)	Carnivora (ネコ目)
Family	Emberizidae	Ursidae (Bears)
Genus	Emberiza	Ursus (Bears)
Species	Emberiza tahapisi	Ursus maritimus

Evolutionary Relationship

ナナスジホオジロ and Polar bear share a common ancestor at the Phylum level: Chordata. (脊索動物)

表示 Phylum: Chordata

Conservation Status

ナナスジホオジロ

LC — Least Concern

Polar bear

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	ナナスジホオジロ	Polar bear
Diet	—	Carnivore
Average Lifespan	—	25 years
Average Length	—	2.4 m
Average Weight	—	450.0 kg

Habitat & Geographic Range

ナナスジホオジロ

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway.

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.

ナナスジホオジロ

The cinnamon-breasted bunting (Emberiza tahapisi), also called the rock bunting or cinnamon-breasted rock bunting, is a small passerine in the family Emberizidae, widely distributed across sub-Saharan Africa and extending into the Arabian Peninsula and parts of western Asia. It inhabits rocky hillsides, boulder-strewn slopes, dry scrub, and open woodland with rocky outcrops, from sea level to highland elevations across its vast African range. The male is distinguished by bold streaky brown upperparts, a black and white striped head, and a rich cinnamon breast—its namesake feature. The species forages on the ground for seeds and invertebrates. The cinnamon-breasted bunting is classified as Least Concern by the IUCN, with a large, continuous African range and populations considered stable. It is one of the most widespread buntings in Africa. The species is entirely absent from Europe and Norway; database records to the contrary are errors arising from data entry or coordinate mistakes in species databases. This bunting is a common and conspicuous species throughout its African rocky habitat, often singing from prominent boulders. It is non-migratory across most of its range, though some montane populations may make limited altitudinal movements seasonally.

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。