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Desert woodrats sometimes appropriate the burrows of ground squirrels or kangaroo rats, [citation needed] and will fortify the entrance with several cubic metres of sticks and joints collected from jumping and teddy-bear chollas. This provides a formidable defense against predators.
Populations may cycle approximately every 8 years due to variation in reproduction and juvenile survival. [14] Female annual survival rates vary by age from 0.42 for juveniles to 0.71 for 1–2 year olds, [ 14 ] and very few females (less than 5%) live beyond 3 years of age.
Herbivory is of extreme ecological importance and prevalence among insects.Perhaps one third (or 500,000) of all described species are herbivores. [4] Herbivorous insects are by far the most important animal pollinators, and constitute significant prey items for predatory animals, as well as acting as major parasites and predators of plants; parasitic species often induce the formation of galls.
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The Guatemala woodrat (Neotoma ferruginea), also called Tomes's woodrat, is a species of cricetid rodent from Mexico and northern Central America. [ 1 ] Taxonomy
The bushy-tailed woodrat, or packrat (Neotoma cinerea) is a species of rodent in the family Cricetidae found in Canada and the United States. [2] Its natural habitats are boreal forests , temperate forests, dry savanna , temperate shrubland , and temperate grassland .
As with most members of the genus, the Eastern Woodrat feeds opportunistically on nuts, seeds, fungi, buds, stems, roots, foliage, and fruits. [1] [15] While the eastern woodrat's nest is typically found on the ground, it is a capable climber and may forage above ground. [2] Eastern Woodrats eat about 5% of their body weight in dry mass each day.
California Department of Fish and Game (September 2008). "Complete List of Amphibian, Reptile, Bird and Mammal Species in California" (PDF). Archived from the original (PDF) on 2010-11-06 This is the primary source for most species on this list. California Department of Fish and Game. "Mammal Species of Special Concern"