Isarog Shrew Mouse vs Lesser Scaup

Archboldomys luzonensis compared with Aythya affinis

Key Differences

• Isarog Shrew Mouse is Vulnerable while Lesser Scaup is Least Concern.

Taxonomic Classification

Rank	Isarog Shrew Mouse	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	Muridae (Mice & Rats)	Anatidae
Genus	Archboldomys	Aythya
Species	Archboldomys luzonensis	Aythya affinis

Evolutionary Relationship

Isarog Shrew Mouse and Lesser Scaup share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Isarog Shrew Mouse

VU — Vulnerable

Lesser Scaup

LC — Least Concern

Physical Characteristics

Attribute	Isarog Shrew Mouse	Lesser Scaup
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Isarog Shrew Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.