ニショクキムネオオハシ vs Comoro Flying Fox

Ramphastos ambiguus compared with Pteropus livingstonii

Key Differences

• ニショクキムネオオハシ is Vulnerable while Comoro Flying Fox is Critically Endangered.

Taxonomic Classification

Rank	ニショクキムネオオハシ	Comoro Flying Fox
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Mammalia (哺乳類)
Order	Piciformes (キツツキ目)	Chiroptera (翼手目)
Family	Ramphastidae	Pteropodidae (Fruit Bats)
Genus	Ramphastos	Pteropus (Flying Foxes)
Species	Ramphastos ambiguus	Pteropus livingstonii

Evolutionary Relationship

ニショクキムネオオハシ and Comoro Flying Fox share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ニショクキムネオオハシ

VU — Vulnerable

Comoro Flying Fox

CR — Critically Endangered

Physical Characteristics

Attribute	ニショクキムネオオハシ	Comoro Flying Fox
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ニショクキムネオオハシ

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Comoro Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

ニショクキムネオオハシ

Black-mandibled Toucan（Ramphastos ambiguus）はIUCNレッドリストで危急種（VU）に分類されています。野生での絶滅リスクが高く、個体数が減少し、生息地への圧力が増大しています。

Comoro Flying Fox

<em>Pteropus livingstonii</em>, the Comoro flying fox or Livingstone's fruit bat, is a large fruit bat in the family Pteropodidae, endemic to the Comoro Islands in the western Indian Ocean, where it is restricted to Anjouan and Mohéli. It is one of the largest bats in the world, with a wingspan that can exceed one meter and a body weight reportedly ranging between 400–700 g. The species roosts colonially in tall native forest trees, particularly in humid upland forest fragments, and feeds on a variety of native fruits, nectar, and pollen, playing a critical role as a seed disperser and pollinator in Comoran forest ecosystems. Precise average lifespan data in the wild remain poorly documented, though captive individuals have lived over 20 years. <em>Pteropus livingstonii</em> is assessed as Critically Endangered by the IUCN, making it one of the most threatened bat species in the world. Primary threats include extensive deforestation driven by agricultural expansion and charcoal production, which has severely reduced suitable roosting and foraging habitat, along with historic hunting. Conservation efforts include habitat protection, community education programs, and captive breeding initiatives at several European zoos coordinated through an international species survival program.