Choco Yellow-shouldered Bat vs Common Pouchwort

Sturnira koopmanhilli compared with Calypogeia fissa

Key Differences

• Choco Yellow-shouldered Bat is Data Deficient while Common Pouchwort is Vulnerable.

Taxonomic Classification

Rank	Choco Yellow-shouldered Bat	Common Pouchwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Marchantiophyta (liverwort)
Class	Mammalia (Mammals)	Jungermanniopsida (Jungermanniopsida)
Order	Chiroptera (Bats)	Jungermanniales (Jungermanniales)
Family	Phyllostomidae	Calypogeiaceae
Genus	Sturnira	Calypogeia
Species	Sturnira koopmanhilli	Calypogeia fissa

Conservation Status

Choco Yellow-shouldered Bat

DD — Data Deficient

Common Pouchwort

VU — Vulnerable

Physical Characteristics

Attribute	Choco Yellow-shouldered Bat	Common Pouchwort
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Choco Yellow-shouldered Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Common Pouchwort

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Choco Yellow-shouldered Bat

The Choco Yellow-shouldered Bat (Sturnira koopmanhilli) is a medium-sized frugivorous bat in the family Phyllostomidae, endemic to the Chocó biogeographic region of northwestern South America, where it occurs in the humid forests of the Pacific slope of Colombia and adjacent Ecuador. It belongs to the genus Sturnira — the yellow-shouldered bats — characterised by males bearing distinctive yellowish, orange, or reddish shoulder glands (from which the group's name derives), robust bodies, and rounded ears. Like all Sturnira, this species is primarily frugivorous, consuming a wide range of small, soft fruits from pioneer and forest trees, and plays an important role as a seed disperser in disturbed forest patches and forest edges. The diet of Solanaceae (nightshade family) fruits is particularly typical of the genus, and Sturnira bats are considered the primary dispersers of many pioneer Solanum species in Neotropical secondary succession, contributing directly to forest regeneration. The IUCN classifies the Choco Yellow-shouldered Bat as Data Deficient, reflecting significant uncertainty about the species' distribution limits, population size, and ecological requirements. The Chocó region continues to experience rapid deforestation, which threatens frugivorous bat diversity even where individual species lack adequate data for formal threat assessment.

Common Pouchwort

The Common Pouchwort, <em>Calypogeia fissa</em>, is a liverwort in the family Calypogeiaceae, a group of non-vascular plants within the division Marchantiophyta. It is a leafy liverwort characterized by its creeping, pale green to yellowish shoots bearing overlapping, asymmetric leaves arranged in two lateral rows and a row of smaller underleaves. The species is typically found growing on moist, acidic soil, rotting wood, and shaded banks in temperate forests and moorlands. Its geographic range encompasses Asia, Europe, and North America, where it occupies humid woodland habitats and montane environments with stable moisture regimes. <em>Calypogeia fissa</em> reproduces both sexually via spores and vegetatively through gemmae, which are small propagules produced in specialized cups at shoot tips. As a bryophyte, it lacks true roots, stems, and leaves in the vascular sense, absorbing water and nutrients directly through its surface. The species is assessed as Vulnerable on the IUCN Red List, reflecting concerns about habitat loss and the degradation of moist woodland environments across parts of its range. Biological traits such as average lifespan, body size, and specific dietary preferences remain poorly documented for this species.