Brown Rat vs Tree-hole tick

Rattus norvegicus compared with Ixodes arboricola

Key Differences

• Brown Rat is Least Concern while Tree-hole tick is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	Tree-hole tick
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Arachnida (Arachnids)
Order	Rodentia (Rodents)	Ixodida (Ixodida)
Family	Muridae (Mice & Rats)	Ixodidae
Genus	Rattus	Ixodes
Species	Rattus norvegicus	Ixodes arboricola

Evolutionary Relationship

Brown Rat and Tree-hole tick share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brown Rat

LC — Least Concern

Tree-hole tick

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	Tree-hole tick
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Rat

Habitat

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

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

Tree-hole tick

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Distributed across Norway and Sweden.

Brown Rat

Brown Rat (Rattus norvegicus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden