Central Andes Oldfield Mouse vs Rootless Duckweed

Thomasomys contradictus compared with Wolffia arrhiza

Key Differences

• Central Andes Oldfield Mouse is Data Deficient while Rootless Duckweed is Endangered.

Taxonomic Classification

Rank	Central Andes Oldfield Mouse	Rootless Duckweed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Liliopsida (Monocots)
Order	Rodentia (Rodents)	Alismatales (Alismatales)
Family	Cricetidae	Araceae
Genus	Thomasomys	Wolffia
Species	Thomasomys contradictus	Wolffia arrhiza

Conservation Status

Central Andes Oldfield Mouse

DD — Data Deficient

Rootless Duckweed

EN — Endangered

Physical Characteristics

Attribute	Central Andes Oldfield Mouse	Rootless Duckweed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Rootless Duckweed

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types spanning the Indomalayan and Oceanian and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan), Europe (10 countries), North America (Canada), and South America (Brazil). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Central Andes Oldfield Mouse

The Central Andes Oldfield Mouse (Thomasomys contradictus) is a species in the genus Thomasomys. It is currently classified as Data Deficient on the IUCN Red List. Found in Colombia.