Broad-billed Roller vs Coastal Rocket Frog

Eurystomus glaucurus compared with Allobates bromelicola

Key Differences

• Broad-billed Roller is Least Concern while Coastal Rocket Frog is Vulnerable.

Taxonomic Classification

Rank	Broad-billed Roller	Coastal Rocket Frog
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Coraciiformes (Coraciiformes)	Anura (Frogs & Toads)
Family	Coraciidae	Aromobatidae
Genus	Eurystomus	Allobates
Species	Eurystomus glaucurus	Allobates bromelicola

Evolutionary Relationship

Broad-billed Roller and Coastal Rocket Frog share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Broad-billed Roller

LC — Least Concern

Coastal Rocket Frog

VU — Vulnerable

Physical Characteristics

Attribute	Broad-billed Roller	Coastal Rocket Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Broad-billed Roller

Habitat

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

Range

Found in Norway.

Coastal Rocket Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Broad-billed Roller

The Broad-billed Roller (Eurystomus glaucurus) is a species in the genus Eurystomus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Coastal Rocket Frog

Coastal rocket frog (Allobates bromelicola) is a small terrestrial frog in the family Allophrynidae (formerly placed in Dendrobatidae), endemic to coastal lowland forests of Venezuela. Despite its placement near poison dart frogs, Allobates species are non-toxic. This species inhabits the humid leaf litter and bromeliads of coastal Venezuelan forests, where adults care for egg clutches and transport tadpoles to small water bodies including bromeliad phytotelmata. The genus Allobates is widespread across Amazonian and coastal South American forests, characterised by vocal males, ground-level activity, and close parental care. Coastal rocket frog is assessed as Vulnerable by the IUCN, primarily due to restricted range, habitat loss from deforestation for agriculture, livestock grazing, and urban expansion along Venezuela's coast. Climate change poses an additional threat through altered precipitation patterns affecting its bromeliad microhabitats. The species' specific association with bromeliads makes it particularly sensitive to vegetation structure loss. As with many narrowly endemic amphibians, ex-situ conservation programmes and improved habitat protection within its range are considered important management priorities.