Birch Jelly vs Comoro Flying Fox

Exidia repanda compared with Pteropus livingstonii

Key Differences

Birch Jelly is Vulnerable while Comoro Flying Fox is Critically Endangered.

Taxonomic Classification

Rank	Birch Jelly	Comoro Flying Fox
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Auriculariales (Auriculariales)	Chiroptera (Bats)
Family	Auriculariaceae	Pteropodidae (Fruit Bats)
Genus	Exidia	Pteropus (Flying Foxes)
Species	Exidia repanda	Pteropus livingstonii

Conservation Status

Birch Jelly

VU — Vulnerable

Comoro Flying Fox

CR — Critically Endangered

Physical Characteristics

Attribute	Birch Jelly	Comoro Flying Fox
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Birch Jelly

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, Sweden, and United States. 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.

Birch Jelly

The Birch Jelly (Exidia repanda) is a species in the genus Exidia. It is currently classified as Vulnerable on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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.