vs Brown Rat

Biddulphia rhombus compared with Rattus norvegicus

Key Differences

is Not Evaluated while Brown Rat is Least Concern.

Taxonomic Classification

Rank		Brown Rat
Kingdom	Chromista (โครมิสตา)	Animalia (สัตว์)
Phylum	Ochrophyta (Ochrophyta)	Chordata (สัตว์มีแกนสันหลัง)
Class	Bacillariophyceae (Bacillariophyceae)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Biddulphiales (Biddulphiales)	Rodentia (อันดับสัตว์ฟันแทะ)
Family	Biddulphiaceae	Muridae (Mice & Rats)
Genus	Biddulphia	Rattus
Species	Biddulphia rhombus	Rattus norvegicus

Conservation Status

NE — Not Evaluated

Brown Rat

LC — Least Concern

Physical Characteristics

Attribute		Brown Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Asia and Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Sweden, and Taiwan.

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).

Biddulphia rhombus is a centric marine diatom with a distinctly bipolar, rhomboid to broadly lanceolate valve shape bearing prominent horn-like elevations. It inhabits coastal planktonic and benthic environments in temperate to warm seas worldwide. This photosynthetic diatom contributes to marine primary production in neritic coastal waters.

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.