vs Brown Rat

Bacillus thuringiensis compared with Rattus norvegicus

Key Differences

• is Not Evaluated while Brown Rat is Least Concern.

Taxonomic Classification

Rank		Brown Rat
Kingdom	Bacteria (Bacteria)	Animalia (Animals)
Phylum	Firmicutes (Firmicutes)	Chordata (Chordates)
Class	Bacilli (Bacilli)	Mammalia (Mammals)
Order	Bacillales (Bacillales)	Rodentia (Rodents)
Family	Bacillaceae	Muridae (Mice & Rats)
Genus	Bacillus	Rattus
Species	Bacillus thuringiensis	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 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).

Bacillus thuringiensis is a gram-positive, spore-forming soil bacterium in the family Bacillaceae, widely known for producing crystalline protein toxins (Cry proteins) that are insecticidal. It is globally distributed in soils, plant surfaces, and insect habitats. It is extensively used in biological pest control as a safe alternative to chemical insecticides.

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:

🇸🇪 Sweden 🇹🇼 Taiwan