ニショクキムネオオハシ vs Chuuk Flying Fox

Ramphastos ambiguus compared with Pteropus pelagicus

Key Differences

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

Taxonomic Classification

Rank	ニショクキムネオオハシ	Chuuk 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 pelagicus

Evolutionary Relationship

ニショクキムネオオハシ and Chuuk 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

Chuuk Flying Fox

EN — Endangered

Physical Characteristics

Attribute	ニショクキムネオオハシ	Chuuk 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.

Chuuk 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。

Chuuk Flying Fox

The Chuuk flying fox (Pteropus pelagicus) is a large fruit bat in the family Pteropodidae, endemic to Chuuk (Truk) Lagoon in the Federated States of Micronesia, central Pacific Ocean. It occupies forested islands within the lagoon, roosting in large trees and foraging nocturnally on ripe fruits, nectar, and flowers of native tropical vegetation. As one of the few native pollinators and seed dispersers on these small island ecosystems, the Chuuk flying fox plays an essential ecological role in maintaining forest regeneration. The species is classified as Endangered by the IUCN, primarily due to its extremely restricted range—confined to a small island group—and ongoing hunting pressure for bushmeat, which is traditional in parts of Micronesia. Habitat loss from typhoons, agricultural conversion, and human development further threatens its already limited habitat. Pteropus bats across the Pacific have faced severe declines from overhunting, with several island species now extinct. The Chuuk flying fox has a wingspan that can exceed one meter, and roosts colonially in forest canopy trees. International agreements and national legislation within the Federated States of Micronesia provide some protection, but enforcement remains challenging. Population surveys and community-based conservation programs are urgently needed to stabilize this species.