Delicate Pygmy Rice Rat vs

Oligoryzomys delicatus compared with Usnea cornuta

Key Differences

• Delicate Pygmy Rice Rat is Data Deficient while is Near Threatened.

Taxonomic Classification

Rank	Delicate Pygmy Rice Rat
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Lecanorales (Lecanorales)
Family	Cricetidae	Parmeliaceae
Genus	Oligoryzomys	Usnea
Species	Oligoryzomys delicatus	Usnea cornuta

Conservation Status

Delicate Pygmy Rice Rat

DD — Data Deficient

NT — Near Threatened

Physical Characteristics

Attribute	Delicate Pygmy Rice Rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Delicate Pygmy Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Usnea cornuta is a fruticose lichen in the family Parmeliaceae, assessed as Near Threatened (NT). It forms shrubby, branching thalli that hang from tree branches and twigs, typically in humid forest environments. Like all Usnea species, it is highly sensitive to air pollution, particularly sulfur dioxide, making it a useful bioindicator of air quality.