Brook Alder vs Speer’s Collared Frog

Alnus maritima compared with Mannophryne speeri

Key Differences

• Brook Alder is Endangered while Speer’s Collared Frog is Critically Endangered.

Taxonomic Classification

Rank	Brook Alder	Speer’s Collared Frog
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Amphibia (Amphibians)
Order	Fagales (Beeches & Oaks)	Anura (Frogs & Toads)
Family	Betulaceae	Aromobatidae
Genus	Alnus	Mannophryne
Species	Alnus maritima	Mannophryne speeri

Conservation Status

Brook Alder

EN — Endangered

Speer’s Collared Frog

CR — Critically Endangered

Physical Characteristics

Attribute	Brook Alder	Speer’s Collared Frog
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.

Speer’s Collared Frog

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 5 distinct biome types within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Venezuela. 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.