Asiatic elephant vs Ruff

Elephas maximus compared with Calidris pugnax

Key Differences

  • Asiatic elephant is Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank Asiatic elephant Ruff
Kingdom same Animalia (動物) Animalia (動物)
Phylum same Chordata (脊索動物) Chordata (脊索動物)
Class Mammalia (哺乳類) Aves (鳥類)
Order Proboscidea (ゾウ目) Charadriiformes (チドリ目)
Family Elephantidae (Elephants) Scolopacidae
Genus Elephas (Asian Elephants) Calidris
Species Elephas maximus Calidris pugnax

Evolutionary Relationship

Asiatic elephant and Ruff share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Asiatic elephant

EN — Endangered

Population: ~50.0K

Trend: Decreasing ↓

Ruff

LC — Least Concern

Physical Characteristics

Attribute Asiatic elephant Ruff
Diet Herbivore —
Average Lifespan 60 years —
Average Length 5.5 m —
Average Weight 4.0 t —

Habitat & Geographic Range

Asiatic elephant

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 9 distinct biome types spanning the Australasia and Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across India, Indonesia, Myanmar, Sri Lanka, and Thailand. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Ruff

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela).

Asiatic elephant

アジアゾウ(Elephas maximus)はアフリカゾウに比べて小型で、インドから東南アジア・インドネシアに至る森林・草原に生息する。アフリカゾウより小さな耳・丸みのある背・鼻先の1本の指状突起などの形態的特徴を持ち、アジアの文化・宗教と深く結びついており、古来より使役動物・神事に用いられてきた。IUCNレッドリストでは絶滅危惧(EN)に分類されており、野生の個体数は5万頭を下回る。

Ruff

Ruff(Calidris pugnax)は IUCN レッドリストで軽度懸念(LC)に分類されている。分布域全体に広く分布し個体数も豊富で、個体群は安定しており差し迫った保全上の懸念はない。

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