白头海雕 vs

Haliaeetus leucocephalus compared with Chrysochromulina inornamenta

Taxonomic Classification

Rank	白头海雕
Kingdom	Animalia (动物界)	Chromista (色藻界)
Phylum	Chordata (脊索动物门)	Haptophyta (定鞭藻門)
Class	Aves (鳥綱)	Prymnesiophyceae (普林藻纲)
Order	Accipitriformes (鷹形目)	Prymnesiales (定鞭金藻目)
Family	Accipitridae (Hawks & Eagles)	Chrysochromulinaceae
Genus	Haliaeetus (Sea Eagles)	Chrysochromulina
Species	Haliaeetus leucocephalus	Chrysochromulina inornamenta

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

Attribute	白头海雕
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

白头海雕

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 10 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (8 countries), North America (United States), and South America (Ecuador).

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

白头海雕

白头海雕是美国国鸟，也是美国生态保护史上的成功案例，曾因滴滴涕（DDT）的广泛使用而濒临灭绝，经保护措施的实施后种群数量已显著恢复。该物种在IUCN红色名录中被评估为无危（LC），以白色头颈和尾羽与深棕色体羽形成的鲜明对比为主要识别特征。它们主要以鱼类为食，也会捕食哺乳动物和腐肉。

Chrysochromulina inornamenta is a marine haptophyte microalga in the genus Chrysochromulina, class Prymnesiophyceae. The species epithet inornamenta — meaning unornamented — is particularly notable within a genus where most species are distinguished by elaborate scale ultrastructure. This name suggests that C. inornamenta either lacks the complex scale ornamentation typical of its congeners or possesses unusually simple scale morphology, making it an atypical member of the genus and potentially useful for understanding the evolution of scale complexity in haptophytes. C. inornamenta has been recorded from Norwegian and Swedish coastal marine waters, the primary region from which Chrysochromulina species diversity has been characterized through electron microscopy surveys. Norwegian and Swedish coastal environments include productive fjord systems and shelf waters supporting rich microplankton communities. Like other members of the genus, C. inornamenta is presumed to be a photoautotrophic or mixotrophic nanoplankton organism, capable of photosynthesis using chlorophylls a and c and associated carotenoid pigments. It possesses the characteristic haptophyte haptonema alongside two flagella. The haptonema coiling behavior distinguishes Chrysochromulina from the related genus Prymnesium. C. inornamenta has not been formally assessed under the IUCN Red List framework and carries a conservation status of Not Evaluated. Its existence highlights that even within a well-studied genus like Chrysochromulina, morphological diversity encompasses both highly ornamented and comparatively plain cellular phenotypes.