Kleiner Abendsegler vs Fransenfledermaus

Nyctalus leisleri compared with Myotis nattereri

Key Differences

• Kleiner Abendsegler is Endangered while Fransenfledermaus is Critically Endangered.

Taxonomic Classification

Rank	Kleiner Abendsegler	Fransenfledermaus
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum same	Chordata (Chordatiere)	Chordata (Chordatiere)
Class same	Mammalia (Säugetiere)	Mammalia (Säugetiere)
Order same	Chiroptera (Fledertiere)	Chiroptera (Fledertiere)
Family same	Vespertilionidae	Vespertilionidae
Genus	Nyctalus	Myotis
Species	Nyctalus leisleri	Myotis nattereri

Evolutionary Relationship

Kleiner Abendsegler and Fransenfledermaus share a common ancestor at the Family level: Vespertilionidae.

Conservation Status

Kleiner Abendsegler

EN — Endangered

Fransenfledermaus

CR — Critically Endangered

Physical Characteristics

Attribute	Kleiner Abendsegler	Fransenfledermaus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Kleiner Abendsegler

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Fransenfledermaus

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (6 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇱🇺 Luxembourg 🇸🇪 Sweden 🇺🇦 Ukraine