Centric diatom vs Coastal Rocket Frog

Skeletonema subsalsum compared with Allobates bromelicola

Key Differences

Centric diatom is Not Evaluated while Coastal Rocket Frog is Vulnerable.

Taxonomic Classification

Rank	Centric diatom	Coastal Rocket Frog
Kingdom	Chromista (โครมิสตา)	Animalia (สัตว์)
Phylum	Ochrophyta (Ochrophyta)	Chordata (สัตว์มีแกนสันหลัง)
Class	Bacillariophyceae (Bacillariophyceae)	Amphibia (สัตว์สะเทินน้ำสะเทินบก)
Order	Thalassiosirales (Thalassiosirales)	Anura (อันดับกบ)
Family	Skeletonemaceae	Aromobatidae
Genus	Skeletonema	Allobates
Species	Skeletonema subsalsum	Allobates bromelicola

Conservation Status

Centric diatom

NE — Not Evaluated

Coastal Rocket Frog

VU — Vulnerable

Physical Characteristics

Attribute	Centric diatom	Coastal Rocket Frog
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Centric diatom

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Found across Europe (7 countries) and North America (United States).

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.

Centric diatom

The Centric Diatom (Skeletonema subsalsum) is a species in the genus Skeletonema. Found across Europe (7 countries) and North America (United States).

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.