ハイイロハッカ vs

Acridotheres ginginianus compared with Chrysosphaerella longispina

Key Differences

ハイイロハッカ is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	ハイイロハッカ
Kingdom	Animalia (動物)	Chromista (クロミスタ)
Phylum	Chordata (脊索動物)	Ochrophyta (オクロ植物)
Class	Aves (鳥類)	Chrysophyceae (黄金色藻)
Order	Passeriformes (スズメ目)	Ochromonadales (Ochromonadales)
Family	Sturnidae	Paraphysomonadaceae
Genus	Acridotheres	Chrysosphaerella
Species	Acridotheres ginginianus	Chrysosphaerella longispina

Conservation Status

ハイイロハッカ

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	ハイイロハッカ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ハイイロハッカ

Habitat

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

Range

Found across Asia (6 countries) and Europe (6 countries).

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

ハイイロハッカ

バンクハッカ（Acridotheres ginginianus）は、IUCNレッドリストで軽度懸念（LC）に分類されています。分布域全体にわたって広く生息し個体数も豊富で、個体群は安定しており、差し迫った保全上の懸念はありません。

Chrysosphaerella longispina is a colonial chrysophyte alga in the genus Chrysosphaerella, notable for the long silica spines (longispina: Latin, long spine) that project from each cell in the colony. The genus is characterized by spherical or discoid colonies of photosynthetic cells that each secrete siliceous scales and elongated spine-like appendages, making Chrysosphaerella colonies distinctively bristled and visible under light microscopy. The long spines of C. longispina likely serve as anti-predation structures that make the colonies more difficult for zooplankton to ingest. C. longispina is found in cold, oligotrophic freshwater lakes, particularly in Scandinavia, where comprehensive chrysophyte surveys have documented its presence. Chrysosphaerella colonies contribute to freshwater primary production and the cycling of biogenic silica, which upon cell dissolution is deposited in lake sediments as microscopically identifiable remains. These silica structures are widely used by paleolimnologists to reconstruct past changes in lake water chemistry, thermal stratification, and climate. The conservation status of C. longispina has not been assessed by the IUCN; the species is listed as Not Evaluated.