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Dusky-footed woodrat


Dusky-footed woodrat

Dusky-footed woodrat
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Cricetidae
Genus: Neotoma
Species: N. fuscipes
Binomial name
Neotoma fuscipes
Baird, 1858
Adult female N. fuscipes, UC Davis Quail Ridge Reserve
N. fuscipes house, UC Davis Stebbins Cold Canyon Reserve, CA

The dusky-footed woodrat (Neotoma fuscipes) is a species of nocturnal rodent in the family Cricetidae.[2] They are commonly called "packrats" or "trade rats" and build large, domed dens that can reach several feet in height. Coyotes and other predators will attempt to prey on these rodents by laying waste to the dens, but the sheer volume of material is usually dissuasive. Occasionally, dusky-footed woodrats will build satellite dens in trees. Although these animals are religiously solitary, except in the mating season (when they are most vulnerable to predation), dens are frequently found in clusters of up to several dozen, forming rough "communities". The mating system in this species appears to be variable, with promiscuity most generally at high population densities and monogamy at lower densities.[3]

They are similar in appearance to the common rat species Rattus rattus and Rattus norvegicus, but with larger ears and eyes, softer coats, and furred tails. The California mouse, Peromyscus californicus, which has similar distribution, is sometimes found living in woodrat dens. Dens contain a nest and up to several "pantry" chambers which are used to store leaves and nuts for future consumption.

Dusky-footed woodrats of California have been found to selectively place California bay leaves (

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  2. ^ Musser, G. G. and Carleton, M. D. (2005). "Superfamily Muroidea". in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder (eds.) pp. 894–1531. Johns Hopkins University Press, Baltimore.
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  5. ^ Vassar College, URSI projects 2006 and 2007, Prof. Richard B. Hemmes and Edith C. Stout, Students Anna Payne-Tobin, Camille Friason, and Michael Higgins. The Role of Monoterpenes from California Bay in Nest Ectoparasite Control by Dusky-Footed Wood Rats, and Behavioral Adaptations to Parasites: Are Wood Rats Using Plant Essential Oils to Control Nest Ectoparasites?


The species is found in Mexico and the United States.

Wood rats are believed to have evolved this behavioral adaptation to cope with the environmental stresses posed by ectoparasites. [5]

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