Zwergwal vs Birken-Gürtelfuß

Balaenoptera acutorostrata compared with Cortinarius bivelus

Key Differences

• Zwergwal is Least Concern while Birken-Gürtelfuß is Data Deficient.

Taxonomic Classification

Rank	Zwergwal	Birken-Gürtelfuß
Kingdom	Animalia (Tier)	Fungi (Pilze)
Phylum	Chordata (Chordatiere)	Basidiomycota (Ständerpilze)
Class	Mammalia (Säugetiere)	Agaricomycetes (Mushrooms)
Order	Cetacea (Whales & Dolphins)	Agaricales (Champignonartige)
Family	Balaenopteridae (Rorquals)	Cortinariaceae
Genus	Balaenoptera (Rorquals)	Cortinarius
Species	Balaenoptera acutorostrata	Cortinarius bivelus

Conservation Status

Zwergwal

LC — Least Concern

Birken-Gürtelfuß

DD — Data Deficient

Physical Characteristics

Attribute	Zwergwal	Birken-Gürtelfuß
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Zwergwal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador).

Birken-Gürtelfuß

Habitat

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

Range

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

Zwergwal

Bagwhale (Balaenoptera acutorostrata) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Birken-Gürtelfuß

Cortinarius bivelus is a mycorrhizal agaric fungus in the family Cortinariaceae, assessed as Data Deficient (DD). Like other members of the genus, it forms ectomycorrhizal associations with forest trees and produces a characteristic cobweb-like cortina veil when young. Insufficient data on its distribution and population size prevent a reliable conservation assessment.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden