Brook Stippleback Lichen vs Red-billed Duck

Dermatocarpon luridum compared with Anas erythrorhyncha

Key Differences

Brook Stippleback Lichen is Critically Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Brook Stippleback Lichen	Red-billed Duck
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Eurotiomycetes (Eurotiomycetes)	Aves (Birds)
Order	Verrucariales (Verrucariales)	Anseriformes (Anseriformes)
Family	Verrucariaceae	Anatidae
Genus	Dermatocarpon	Anas
Species	Dermatocarpon luridum	Anas erythrorhyncha

Conservation Status

Brook Stippleback Lichen

CR — Critically Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Brook Stippleback Lichen	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Stippleback Lichen

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Red-billed Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (6 countries) and South America (Ecuador).

Brook Stippleback Lichen

The Brook Stippleback Lichen (Dermatocarpon luridum) is a species in the genus Dermatocarpon. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) 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.