Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Eulipotyphla
- Family
- Soricidae
- Genus
- Sorex
Habitat
The Dwarf shrew inhabits moist, high-elevation areas such as meadows, forests, and stream banks in the western United States and Canada. It prefers cool, damp environments with dense vegetation for cover, typically found between 1,500 and 3,000 meters above sea level.
Diet
The Dwarf shrew primarily eats insects, earthworms, spiders, and other small invertebrates. It forages actively in leaf litter and soil, hunting day and night due to its high metabolic rate. They consume food frequently, often every few hours, to maintain energy.
Behavior
Dwarf shrews are solitary and territorial, defending small home ranges with scent markings. They are primarily nocturnal but may be active during the day, constantly foraging for food. These shrews exhibit high activity levels and vocalizations to communicate, though they are generally elusive and avoid open areas.
Conservation Status
The IUCN classifies the Dwarf shrew as Least Concern, with a stable population trend. Major threats include habitat loss from development and climate change impacts on high-elevation environments.