Ceylon Spiny Mouse vs Chisos Mountains Oak

Mus fernandoni compared with Quercus tardifolia

Key Differences

Ceylon Spiny Mouse is Endangered while Chisos Mountains Oak is Data Deficient.

Taxonomic Classification

Rank	Ceylon Spiny Mouse	Chisos Mountains Oak
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Mammalia (Mammals)	Magnoliopsida (Dicots)
Order	Rodentia (Rodents)	Fagales (Beeches & Oaks)
Family	Muridae (Mice & Rats)	Fagaceae (Beech Family)
Genus	Mus (House Mice)	Quercus (Oaks)
Species	Mus fernandoni	Quercus tardifolia

Conservation Status

Ceylon Spiny Mouse

EN — Endangered

Chisos Mountains Oak

DD — Data Deficient

Physical Characteristics

Attribute	Ceylon Spiny Mouse	Chisos Mountains Oak
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ceylon Spiny Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Chisos Mountains Oak

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Ceylon Spiny Mouse

The Ceylon Spiny Mouse (Mus fernandoni) is a species in the genus Mus. It is currently classified as Endangered on the IUCN Red List.

The Chisos Mountains Oak (Quercus tardifolia) is a rare deciduous oak endemic to the Chisos Mountains of Big Bend National Park in Trans-Pecos Texas, USA. Belonging to the red oak group (section Lobatae) within the family Fagaceae, it is one of the most geographically restricted oaks in North America, known from only a very small area within the high-elevation woodland zones of the park. The species grows at elevations roughly between 1,800 and 2,400 metres, where it occurs in mixed woodland communities alongside other oaks, junipers, and pines. Like other red oaks, its acorns require two years to mature, and the leaves typically display the deep sinuses and bristle-tipped lobes characteristic of the section. The IUCN currently classifies Quercus tardifolia as Data Deficient, reflecting uncertainty about its precise population size, the extent of hybridisation with related oak species, and the degree to which apparent stands represent genetically distinct individuals versus hybrids. Climate change poses a significant long-term threat to this mountain-island endemic, as rising temperatures could compress or eliminate the cooler, moister habitat on which it depends. Conservation efforts focus on accurate taxonomic assessment, population monitoring within Big Bend National Park, and seed banking to preserve genetic diversity.