Asiatic elephant vs

Elephas maximus compared with Chrysosphaerella brevispina

Key Differences

Asiatic elephant is Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Asiatic elephant
Kingdom	Animalia (動物)	Chromista (クロミスタ)
Phylum	Chordata (脊索動物)	Ochrophyta (オクロ植物)
Class	Mammalia (哺乳類)	Chrysophyceae (黄金色藻)
Order	Proboscidea (ゾウ目)	Ochromonadales (Ochromonadales)
Family	Elephantidae (Elephants)	Paraphysomonadaceae
Genus	Elephas (Asian Elephants)	Chrysosphaerella
Species	Elephas maximus	Chrysosphaerella brevispina

Conservation Status

Asiatic elephant

EN — Endangered

Population: ~50.0K

Trend: Decreasing ↓

NE — Not Evaluated

Physical Characteristics

Attribute	Asiatic elephant
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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。

Chrysosphaerella brevispina is a colonial chrysophyte alga in the genus Chrysosphaerella, class Chrysophyceae. The genus is defined by its colonial organization: cells are arranged in spherical or discoid colonies in which each cell bears siliceous scales on its surface and projects stiff, spine-like silica bristles outward. The specific epithet brevispina (Latin: short spine) describes the relatively short silica spines that distinguish this species from congeners bearing longer projections. C. brevispina is found in freshwater environments, particularly in oligotrophic lakes and ponds of Scandinavia, where chrysophyte communities are richest. Chrysosphaerella species, like other chrysophytes, thrive in cold, clear, soft-water habitats and are sensitive indicators of water quality. The silica spines and scales produced by Chrysosphaerella cells are preserved in lake sediments as microfossils, providing paleoenvironmental records stretching back thousands of years. The spines may function as anti-grazing structures, reducing ingestion by zooplankton. The species has not been evaluated for conservation status by the IUCN and is listed as Not Evaluated. Its ecology and distribution in lakes outside Scandinavia are incompletely documented.