robust shell vs marreca-parda

Littoraria undulata compared with Anas georgica

Key Differences

• robust shell is Least Concern while marreca-parda is Endangered.

Taxonomic Classification

Rank	robust shell	marreca-parda
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Moluscos)	Chordata (cordados)
Class	Gastropoda (Gastrópodes)	Aves (ave)
Order	Littorinimorpha (Littorinimorpha)	Anseriformes (Anseriformes)
Family	Littorinidae	Anatidae
Genus	Littoraria	Anas
Species	Littoraria undulata	Anas georgica

Evolutionary Relationship

robust shell and marreca-parda share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

robust shell

LC — Least Concern

marreca-parda

EN — Endangered

Physical Characteristics

Attribute	robust shell	marreca-parda
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

robust shell

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found in Taiwan.

marreca-parda

Habitat

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

Range

Found across Europe (6 countries) and South America (Colombia, Ecuador). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

marreca-parda

O marreco-de-bico-amarelo (Anas georgica) está classificado como Em Perigo (EN) na Lista Vermelha da IUCN. Com alto risco de extinção na natureza, com declínio populacional significativo e ameaças contínuas à sua sobrevivência.