Fernandina Nesoryzomys vs Ring-necked Duck

Nesoryzomys fernandinae compared with Aythya collaris

Key Differences

• Fernandina Nesoryzomys is Vulnerable while Ring-necked Duck is Least Concern.

Taxonomic Classification

Rank	Fernandina Nesoryzomys	Ring-necked Duck
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 collaris

Evolutionary Relationship

Fernandina Nesoryzomys and Ring-necked Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Fernandina Nesoryzomys

VU — Vulnerable

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Fernandina Nesoryzomys	Ring-necked Duck
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.

Ring-necked Duck

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Ring-necked Duck

Ring-necked Duck (Aythya collaris) 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