Brook Alder vs Hairy Marron

Alnus maritima compared with Cherax tenuimanus

Key Differences

• Brook Alder is Endangered while Hairy Marron is Critically Endangered.

Taxonomic Classification

Rank	Brook Alder	Hairy Marron
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Malacostraca (Crustaceans)
Order	Fagales (Beeches & Oaks)	Decapoda (Decapoda)
Family	Betulaceae	Parastacidae
Genus	Alnus	Cherax
Species	Alnus maritima	Cherax tenuimanus

Conservation Status

Brook Alder

EN — Endangered

Hairy Marron

CR — Critically Endangered

Physical Characteristics

Attribute	Brook Alder	Hairy Marron
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Hairy Marron

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Mauritius, South Africa, Tunisia), Asia (China, Malaysia), Europe (Germany, Norway), North America (Panama), Oceania and the Pacific (New Zealand), and South America (Peru). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.