Choco Yellow-shouldered Bat vs Gulf of California Harbor Porpoise

Sturnira koopmanhilli compared with Phocoena sinus

Key Differences

• Choco Yellow-shouldered Bat is Data Deficient while Gulf of California Harbor Porpoise is Critically Endangered.

Taxonomic Classification

Rank	Choco Yellow-shouldered Bat	Gulf of California Harbor Porpoise
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class same	Mammalia (포유류)	Mammalia (포유류)
Order	Chiroptera (박쥐)	Cetacea (Whales & Dolphins)
Family	Phyllostomidae	Phocoenidae
Genus	Sturnira	Phocoena
Species	Sturnira koopmanhilli	Phocoena sinus

Evolutionary Relationship

Choco Yellow-shouldered Bat and Gulf of California Harbor Porpoise share a common ancestor at the Class level: Mammalia. (포유류)

Conservation Status

Choco Yellow-shouldered Bat

DD — Data Deficient

Gulf of California Harbor Porpoise

CR — Critically Endangered

Physical Characteristics

Attribute	Choco Yellow-shouldered Bat	Gulf of California Harbor Porpoise
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.

Gulf of California Harbor Porpoise

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.