Common seabird tick vs Eurasian beaver

Ixodes uriae compared with Castor fiber

Key Differences

• Common seabird tick is Not Evaluated while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Common seabird tick	Eurasian beaver
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum	Arthropoda (절지동물)	Chordata (척삭동물)
Class	Arachnida (거미강)	Mammalia (포유류)
Order	Ixodida (진드기)	Rodentia (설치류)
Family	Ixodidae	Castoridae (Beavers)
Genus	Ixodes	Castor (Beavers)
Species	Ixodes uriae	Castor fiber

Evolutionary Relationship

Common seabird tick and Eurasian beaver share a common ancestor at the Kingdom level: Animalia. (동물)

Conservation Status

Common seabird tick

NE — Not Evaluated

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Common seabird tick	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common seabird tick

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Norway and Sweden.

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Common seabird tick

<em>Ixodes uriae</em>, the common seabird tick, is a hard tick in the family Ixodidae, order Ixodida, distributed across subarctic and subantarctic regions with records from Norway and Sweden. This species is an obligate ectoparasite that specializes in feeding on colonial seabirds, including auks, penguins, and petrels, making it one of the few tick species with a genuinely circumpolar distribution tied to its avian hosts. <em>Ixodes uriae</em> typically infests birds in their nesting colonies, where dense aggregations and repeated site fidelity by hosts facilitate transmission. Beyond its direct parasitic impact, this tick serves as a vector for various pathogens, including Borrelia spirochetes and tick-borne encephalitis-related viruses, making it of scientific interest for disease ecology in seabird populations. The species has not been formally evaluated by the IUCN, and its conservation status remains Not Evaluated. Biological traits for this species remain poorly documented in the scientific literature, including comprehensive data on average lifespan under natural conditions, body dimensions across life stages, weight, and the full range of its host and pathogen associations.

Eurasian beaver

유라시아비버(Castor fiber)는 IUCN 적색 목록에서 취약(VU)으로 분류됩니다. 개체군이 감소하고 서식지 압박이 증가하며 야생에서 멸종 위기에 처할 높은 위험에 직면해 있습니다.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden