Scientific name: Neotoma fuscipes
Taxonomy
- Kingdom: Animalia
- Phylum: Chordata
- Class: Mammalia
- Order: Rodentia
- Family: Cricetidae
- Subfamily: Neotominae
- Genus: Neotoma
- Species: N. fuscipes
Common names
- Dusky-footed woodrat
- Dusky woodrat
Physical description
The dusky-footed woodrat is a medium‑sized rodent, typically measuring 30–35 cm in total length, including a tail of approximately 12–15 cm. Adults weigh 150–250 g. The dorsal pelage is a brown to grayish‑brown color, while the ventral side is lighter. The species is named for the relatively dark coloration of the soles of its feet compared with other woodrat species. The tail is moderately long, sparsely haired, and may be slightly darker dorsally.
Distribution and habitat
Neotoma fuscipes is native to the western United States, ranging from southern Washington and Oregon through California, Nevada, and into parts of western Utah and Arizona. It occupies a variety of habitats, including mixed coniferous forests, chaparral, oak woodlands, and shrub‑steppe environments. The species prefers areas with dense ground cover and abundant rocky crevices, which are used for shelter and nest construction.
Behavior and ecology
- Nocturnal activity: Primarily active at night, feeding on a variety of plant materials.
- Nest construction: Builds complex nests, often termed “middens,” using twigs, leaves, cactus spines, and other plant debris. Nests may be situated inside rock crevices, hollow logs, or under vegetation.
- Diet: Omnivorous; consumes leaves, seeds, fruits, cactus pads, insects, and occasional carrion. Seasonal variations in diet reflect local plant phenology.
- Territoriality: Individuals maintain home ranges that may overlap, particularly where resources are abundant.
Reproduction
Breeding occurs year‑round in milder parts of the range, with peaks in spring and early summer. Females give birth to litters of 2–5 young after a gestation period of approximately 30–33 days. Offspring are weaned at about 3 weeks and attain independence shortly thereafter.
Predators
Predation pressure includes owls, hawks, foxes, coyotes, and larger snakes. Predation risk influences the species’ nocturnal habits and preference for concealed nesting sites.
Conservation status
The International Union for Conservation of Nature (IUCN) lists the dusky-footed woodrat as Least Concern due to its wide distribution and presumed large population. No major population-wide threats have been identified, although localized habitat loss from urban development, logging, and wildfire can impact specific populations.
Ecological role
As a seed disperser and prey item, N. fuscipes contributes to plant community dynamics and supports predator populations. Its middens may provide microhabitats for invertebrates and influence nutrient cycling within their ecosystems.
Research notes
The species has been utilized in studies of rodent ecology, behavior, and the effects of habitat fragmentation. Genetic analyses have clarified its relationship to other Neotoma species, confirming its status as a distinct species within the genus.
