vs Eurasian badger

Chrysosphaerella longispina compared with Meles meles

Key Differences

is Not Evaluated while Eurasian badger is Vulnerable.

Taxonomic Classification

Rank		Eurasian badger
Kingdom	Chromista (โครมิสตา)	Animalia (สัตว์)
Phylum	Ochrophyta (Ochrophyta)	Chordata (สัตว์มีแกนสันหลัง)
Class	Chrysophyceae (สาหร่ายสีทอง)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Ochromonadales (Ochromonadales)	Carnivora (สัตว์กินเนื้อ)
Family	Paraphysomonadaceae	Mustelidae (Weasels & Otters)
Genus	Chrysosphaerella	Meles
Species	Chrysosphaerella longispina	Meles meles

Conservation Status

NE — Not Evaluated

Eurasian badger

VU — Vulnerable

Physical Characteristics

Attribute		Eurasian badger
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Eurasian badger

Habitat

Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Eurasian badger

Eurasian badger (Meles meles) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.