Choco Yellow-shouldered Bat vs common bobtail

Sturnira koopmanhilli compared with Sepietta oweniana

Key Differences

• Choco Yellow-shouldered Bat is Data Deficient while common bobtail is Least Concern.

Taxonomic Classification

Rank	Choco Yellow-shouldered Bat	common bobtail
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum	Chordata (Kordalılar)	Mollusca (Yumuşakçalar)
Class	Mammalia (memeliler)	Cephalopoda (Kafadan bacaklılar)
Order	Chiroptera (yarasa)	Sepiida (Mürekkep balığı)
Family	Phyllostomidae	Sepiolidae
Genus	Sturnira	Sepietta
Species	Sturnira koopmanhilli	Sepietta oweniana

Evolutionary Relationship

Choco Yellow-shouldered Bat and common bobtail share a common ancestor at the Kingdom level: Animalia. (hayvan)

Conservation Status

Choco Yellow-shouldered Bat

DD — Data Deficient

common bobtail

LC — Least Concern

Physical Characteristics

Attribute	Choco Yellow-shouldered Bat	common bobtail
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 bobtail

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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 bobtail

The common bobtail (<em>Sepietta oweniana</em>) is a small cephalopod mollusc found in the coastal waters of Denmark, Norway, and Sweden. This species typically inhabits European marine ecosystems, often occupying shallow to moderately deep benthic environments along the coastline. As a member of the family Sepiolidae, the common bobtail is a squid-like creature well adapted to life on or near the seafloor. It is classified as Least Concern on the IUCN Red List, reflecting a stable population status across its European range. The species often uses cryptic coloration and burrowing behavior to avoid predation in its marine habitats. It is typically a carnivore, feeding on small crustaceans and fish, and is itself an important prey species for larger marine predators in the North Sea and surrounding waters. Biological traits of this species remain poorly documented in the scientific literature.