Common Pond Frog vs Laysan Duck

Fejervarya vittigera compared with Anas laysanensis

Key Differences

• Common Pond Frog is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Common Pond Frog	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Aves (Birds)
Order	Anura (Frogs & Toads)	Anseriformes (Anseriformes)
Family	Dicroglossidae	Anatidae
Genus	Fejervarya	Anas
Species	Fejervarya vittigera	Anas laysanensis

Evolutionary Relationship

Common Pond Frog and Laysan Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Pond Frog

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Common Pond Frog	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Pond Frog

Habitat

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

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous 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 Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Pond Frog

<em>Fejervarya vittigera</em>, the common pond frog, is a dicroglossid frog in the family Dicroglossidae, adapted to freshwater and wetland habitats including rice paddies, ponds, marshes, streams, and irrigated agricultural fields. It is typically a robust, medium-sized frog with a brown or olive-grey dorsum marked with longitudinal ridges and variable patterns, well suited for camouflage in its aquatic and semi-aquatic environments. The species is broadly distributed across South and Southeast Asia, favouring lowland areas with permanent or seasonal water availability. <em>Fejervarya vittigera</em> is carnivorous, typically feeding on invertebrates including insects, worms, and small crustaceans encountered near the water's edge or within aquatic vegetation. It is assessed as Least Concern on the IUCN Red List, with populations generally considered stable across its wide range, supported by its tolerance of modified habitats such as rice paddies. Biological traits such as average adult lifespan, precise body dimensions, body mass, and comprehensive dietary data across its geographic range remain poorly documented in the scientific literature. The species may face localised pressures from pesticide use in agricultural areas and habitat drainage.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.