Broad skate vs Clustered Bracket

Amblyraja badia compared with Inonotus cuticularis

Key Differences

• Broad skate is Least Concern while Clustered Bracket is Vulnerable.

Taxonomic Classification

Rank	Broad skate	Clustered Bracket
Kingdom	Animalia (동물)	Fungi (균계)
Phylum	Chordata (척삭동물)	Basidiomycota (담자균류)
Class	Elasmobranchii	Agaricomycetes (주름버섯강)
Order	Rajiformes (홍어목)	Hymenochaetales (소나무비늘버섯목)
Family	Rajidae	Hymenochaetaceae
Genus	Amblyraja	Inonotus
Species	Amblyraja badia	Inonotus cuticularis

Conservation Status

Broad skate

LC — Least Concern

Clustered Bracket

VU — Vulnerable

Physical Characteristics

Attribute	Broad skate	Clustered Bracket
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broad skate

Clustered Bracket

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Broad skate

The Broad Skate (Amblyraja badia) is a species in the genus Amblyraja. It is currently classified as Least Concern on the IUCN Red List. This species is recognized for its ecological significance within its native range.

Clustered Bracket

Inonotus cuticularis, the clustered bracket, is a polypore fungus in the family Hymenochaetaceae that grows on living and dead hardwood trees across the northern hemisphere. The fruiting bodies are bracket-shaped, overlapping in tiered clusters, with a yellowish-brown to rusty-brown upper surface that darkens with age, and a pale to golden pore surface beneath. This species causes white heart rot in its host trees, degrading the structural integrity of trunks and major branches. It commonly attacks living oaks, beeches, and other broadleaf trees, as well as occurring on dead wood. Inonotus cuticularis is listed as Vulnerable by the IUCN, reflecting its association with old-growth and veteran trees that are increasingly rare in managed European and North American landscapes. The decline of old-growth forest and the removal of veteran trees from managed woodlands and parklands has reduced suitable habitat for many bracket fungi. Conservation of ancient and veteran trees is therefore important for maintaining populations of this and many other wood-decay fungi with similar old-growth associations.