白头海雕 vs Cobblestone Tiger Beetle
Haliaeetus leucocephalus compared with Cicindela marginipennis
Key Differences
- 白头海雕 is Not Evaluated while Cobblestone Tiger Beetle is Vulnerable.
Taxonomic Classification
| Rank | 白头海雕 | Cobblestone Tiger Beetle |
|---|---|---|
| Kingdom same | Animalia (动物界) | Animalia (动物界) |
| Phylum | Chordata (脊索动物门) | Arthropoda (节肢动物门) |
| Class | Aves (鳥綱) | Insecta (昆蟲綱) |
| Order | Accipitriformes (鷹形目) | Coleoptera (鞘翅目) |
| Family | Accipitridae (Hawks & Eagles) | Carabidae |
| Genus | Haliaeetus (Sea Eagles) | Cicindela |
| Species | Haliaeetus leucocephalus | Cicindela marginipennis |
Evolutionary Relationship
白头海雕 and Cobblestone Tiger Beetle share a common ancestor at the Kingdom level: Animalia. (动物界)
Conservation Status
白头海雕
NE — Not EvaluatedPopulation: ~316.7K
Trend: Increasing ↑
Cobblestone Tiger Beetle
VU — VulnerablePhysical Characteristics
| Attribute | 白头海雕 | Cobblestone Tiger Beetle |
|---|---|---|
| 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).
Cobblestone Tiger Beetle
Typically found in virtually all terrestrial and freshwater habitats.
Distributed across Canada and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.
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。
Cobblestone Tiger Beetle
Cobblestone tiger beetle (Cicindela marginipennis) is a medium-sized ground beetle in the family Carabidae (tribe Cicindelini), native to riverbars and cobblestone beaches of major river systems in eastern North America, from Quebec and Ontario south through the Ohio and Mississippi river basins. It is a habitat specialist restricted to dynamic, open gravel and cobble bars on large rivers, where bare, sun-warmed substrate provides ideal conditions for hunting small invertebrate prey. Like all tiger beetles, it is a fast-running, visually acute predator that captures prey by rapid pursuit. Adults are active on sunny days from late spring through summer, capable of short bursts of flight. Cobblestone tiger beetle is assessed as Vulnerable by the IUCN due to severe declines caused by the loss of dynamic river cobblestone habitat through dam construction, channelisation, bank stabilisation, and loss of natural flood regimes that maintain bare substrate. Populations have disappeared from many historically occupied rivers. Conservation efforts focus on preserving and restoring natural river dynamics on rivers where the species persists.
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