白头海雕 vs Coast Fescue
Haliaeetus leucocephalus compared with Festuca elmeri
Key Differences
- 白头海雕 is Not Evaluated while Coast Fescue is Least Concern.
Taxonomic Classification
| Rank | 白头海雕 | Coast Fescue |
|---|---|---|
| Kingdom | Animalia (动物界) | Plantae (植物) |
| Phylum | Chordata (脊索动物门) | Magnoliophyta (木兰植物门) |
| Class | Aves (鳥綱) | Liliopsida (百合纲) |
| Order | Accipitriformes (鷹形目) | Poales (禾本目) |
| Family | Accipitridae (Hawks & Eagles) | Poaceae (Grass Family) |
| Genus | Haliaeetus (Sea Eagles) | Festuca |
| Species | Haliaeetus leucocephalus | Festuca elmeri |
Conservation Status
白头海雕
NE — Not EvaluatedPopulation: ~316.7K
Trend: Increasing ↑
Coast Fescue
LC — Least ConcernPhysical Characteristics
| Attribute | 白头海雕 | Coast Fescue |
|---|---|---|
| Diet | Carnivore | — |
| Average Lifespan | 28 years | — |
| Average Length | 90 cm | — |
| Average Weight | 5.0 kg | — |
Habitat & Geographic Range
白头海雕
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.
Widely distributed across Europe (8 countries), North America (United States), and South America (Ecuador).
Coast Fescue
Typically found in grasslands, wetlands, forests, and cultivated landscapes.
Found in Mexico.
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。
Coast Fescue
Coast fescue (Festuca elmeri) is a perennial bunchgrass in the family Poaceae, native to coastal and near-coastal grasslands of California and northern Baja California, Mexico. It grows on sandy bluffs, coastal terraces, coastal prairie, and the margins of coastal scrub communities, tolerating salt spray, summer drought, and the nutrient-poor soils characteristic of Pacific Coast grasslands. The genus Festuca encompasses numerous fescue species distributed globally, many of which are important components of natural grasslands and widely cultivated as turf and forage grasses. Coast fescue forms tufted clumps with narrow, rolled or folded leaves and produces slender flowering culms in late spring. It is an important component of California's native coastal prairie, a community that has been dramatically reduced by agricultural conversion, urban development, and invasion by European annual grasses. The IUCN assesses coast fescue as Least Concern. Native coastal prairie restoration projects in California use Festuca elmeri as a key species for revegetating degraded coastal bluffs and terraces.
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