Brown Rat vs Castor bean tick

Rattus norvegicus compared with Ixodes ricinus

Key Differences

• Brown Rat is Least Concern while Castor bean tick is Not Evaluated.

Taxonomic Classification

Rank	Brown Rat	Castor bean 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 ricinus

Evolutionary Relationship

Brown Rat and Castor bean tick share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brown Rat

LC — Least Concern

Castor bean tick

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Rat	Castor bean 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).

Castor bean tick

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Asia (Taiwan) and Europe (7 countries).

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.

Castor bean tick

The Castor bean tick (Ixodes ricinus) is a species in the genus Ixodes. Typically found in terrestrial habitats from forests to deserts.

Shared Countries

Both species can be found in 8 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇮🇸 Iceland 🇱🇺 Luxembourg 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden 🇹🇼 Taiwan