Colombian Small-eared Shrew vs

Cryptotis colombiana compared with Nitzschia angularis

Key Differences

• Colombian Small-eared Shrew is Least Concern while is Not Evaluated.

Taxonomic Classification

Rank	Colombian Small-eared Shrew
Kingdom	Animalia (動物)	Chromista (クロミスタ)
Phylum	Chordata (脊索動物)	Ochrophyta (オクロ植物)
Class	Mammalia (哺乳類)	Bacillariophyceae (クサリケイソウ綱)
Order	Soricomorpha (トガリネズミ目)	Bacillariales (Bacillariales)
Family	Soricidae	Bacillariaceae
Genus	Cryptotis	Nitzschia
Species	Cryptotis colombiana	Nitzschia angularis

Conservation Status

Colombian Small-eared Shrew

LC — Least Concern

NE — Not Evaluated

Physical Characteristics

Attribute	Colombian Small-eared Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Colombian Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Habitat

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

Range

Distributed across Brazil, Norway, Sweden, and Taiwan.

Colombian Small-eared Shrew

<em>Cryptotis colombiana</em>, the Colombian small-eared shrew, is a diminutive insectivorous mammal belonging to the family Soricidae, endemic to Colombia. This species typically inhabits montane environments, including humid cloud forests and high-altitude grasslands known locally as páramo, where it forages actively through leaf litter and soil for invertebrate prey. Small-eared shrews of the genus <em>Cryptotis</em> are characterised by their notably reduced external ears, high metabolic rates, and nearly constant activity cycles driven by the energetic demands of maintaining body temperature. <em>Cryptotis colombiana</em> is currently assessed as Least Concern by the IUCN, suggesting that its population is relatively stable within its Colombian range. Despite this status, Andean shrews face ongoing pressures from land conversion, cattle grazing in páramo ecosystems, and climate-driven shifts in vegetation zones. The species contributes to soil aeration and invertebrate population regulation within its montane habitat. Biological traits of this species remain poorly documented in the scientific literature.

Nitzschia angularisは角張った端部と殻の竜骨に沿って位置する特徴的な縫合線を持つ細長い羽状淡水珪藻である。河川、池、栄養豊富な湖を含む富栄養から中栄養の淡水環境に生息する。この光合成珪藻は中程度に栄養が豊富な淡水条件と関連している。