vs Eurasian Skylark

Chrysosphaerella annulata compared with Alauda arvensis

Key Differences

is Not Evaluated while Eurasian Skylark is Vulnerable.

Taxonomic Classification

Rank		Eurasian Skylark
Kingdom	Chromista (크로미스타)	Animalia (동물)
Phylum	Ochrophyta (대롱편모조식물)	Chordata (척삭동물)
Class	Chrysophyceae (황조류)	Aves (새)
Order	Ochromonadales (Ochromonadales)	Passeriformes (참새목)
Family	Paraphysomonadaceae	Alaudidae
Genus	Chrysosphaerella	Alauda
Species	Chrysosphaerella annulata	Alauda arvensis

Conservation Status

NE — Not Evaluated

Eurasian Skylark

VU — Vulnerable

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Eurasian Skylark

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

Range

Widely distributed across Europe (5 countries), North America (Canada, United States), and Oceania and the Pacific (Australia, New Zealand). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Chrysosphaerella annulata is a colonial freshwater chrysophyte microalga in the genus Chrysosphaerella, class Chrysophyceae. Unlike unicellular loricate chrysophytes, Chrysosphaerella species form spherical or ellipsoidal free-floating colonies in which individual cells are embedded in a common gelatinous matrix. The individual cells bear long siliceous scales with distinctive ring-like or annular structures — referenced by the species epithet annulata — projecting outward from the colony surface, giving the colony a spiny appearance under microscopy. These siliceous scales are species-specific and their morphology, as revealed through electron microscopy, is the primary character for identifying Chrysosphaerella species. C. annulata has been recorded from Norwegian and Swedish freshwater environments, consistent with the Scandinavian emphasis in chrysophyte research and the high diversity of chrysophytes in boreal freshwater systems. Chrysosphaerella colonies are planktonic, inhabiting the limnetic zone of oligotrophic to mesotrophic lakes where they may form locally conspicuous populations during favorable conditions. The species uses chlorophylls a and c with fucoxanthin for photosynthesis, contributing to primary production. Chrysosphaerella scales can accumulate in lake sediments, providing a record of past community composition and environmental conditions. C. annulata has not been assessed under IUCN criteria and is classified as Not Evaluated. Its documentation contributes to understanding the diversity of colonial chrysophyte forms in northern European freshwater ecosystems.

Eurasian Skylark

종달새(Alauda arvensis)는 유럽 문학과 시에서 공중 비행 중 복잡하고 아름다운 노래로 유명합니다. 유럽과 아시아 전역의 개방된 농경지, 초원, 황야 위로 수백 미터까지 수직 비상하며 최대 한 시간 동안 끊임없이 노래합니다. 수컷은 700가지 이상의 독특한 노래 구절을 구사할 수 있습니다. 한때 유럽 농경지에서 매우 풍부했던 종달새 개체수는 1970년대 이후 농업 집약화로 인해 70% 이상 감소했습니다.