Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Eulipotyphla
- Family
- Soricidae
- Genus
- Sorex
Habitat
This shrew is endemic to the Pribilof Islands in Alaska, primarily inhabiting tundra meadows, coastal grasslands, and rocky areas near the sea. It prefers moist environments with dense vegetation for cover and is adapted to the cool, foggy climate of the Bering Sea region.
Diet
The Pribilof Island shrew feeds mainly on insects, earthworms, and other small invertebrates, which it hunts actively in leaf litter and soil. It is primarily nocturnal, foraging for food during the night to avoid predators, and may supplement its diet with seeds or berries when prey is scarce.
Behavior
This shrew is solitary and territorial, marking its home range with scent and aggressively defending it from others. It is mostly nocturnal, spending the day in burrows or under rocks, and exhibits high activity levels with quick, darting movements to capture prey. During the breeding season, males may travel more to find mates, but otherwise, they lead a reclusive lifestyle.
Conservation Status
The IUCN lists the Pribilof Island shrew as Least Concern, though its population trend is unknown due to limited data; major threats include habitat loss from erosion and potential invasive species on the islands.