Fernandina Nesoryzomys vs Lesser Scaup

Nesoryzomys fernandinae compared with Aythya affinis

Key Differences

• Fernandina Nesoryzomys is Vulnerable while Lesser Scaup is Least Concern.

Taxonomic Classification

Rank	Fernandina Nesoryzomys	Lesser Scaup
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Anseriformes (Anseriformes)
Family	Cricetidae	Anatidae
Genus	Nesoryzomys	Aythya
Species	Nesoryzomys fernandinae	Aythya affinis

Evolutionary Relationship

Fernandina Nesoryzomys and Lesser Scaup share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Fernandina Nesoryzomys

VU — Vulnerable

Lesser Scaup

LC — Least Concern

Physical Characteristics

Attribute	Fernandina Nesoryzomys	Lesser Scaup
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fernandina Nesoryzomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Lesser Scaup

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Lesser Scaup

Lesser Scaup (Aythya affinis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇪🇨 Ecuador