Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Eulipotyphla
- Family
- Soricidae
- Genus
- Sorex
Habitat
The Fog shrew inhabits moist coniferous forests and riparian areas along the Pacific Coast, from southwestern Oregon to northern California. It prefers cool, damp environments with dense undergrowth, such as near streams, logs, and leaf litter, where it can find shelter and prey.
Diet
The Fog shrew primarily eats insects, earthworms, and other small invertebrates like spiders and snails. It forages actively day and night due to its high metabolic rate, often hunting in leaf litter or under logs. Feeding occurs frequently to sustain its energy needs.
Behavior
Fog shrews are solitary and territorial, marking their areas with scent and avoiding direct contact with others except during mating. They are primarily nocturnal, spending the day in burrows or under cover, and exhibit high activity levels with constant foraging driven by their rapid metabolism. These shrews are aggressive when threatened and produce high-pitched vocalizations.
Conservation Status
The IUCN status for the Fog shrew is Least Concern, with a stable population trend. Major threats include habitat loss from logging and urbanization, but it is not currently facing significant decline.