Dusky-footed woodrat | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Rodentia |
Family: | Cricetidae |
Subfamily: | Neotominae |
Genus: | Neotoma |
Species: | N. fuscipes |
Binomial name | |
Neotoma fuscipes Baird, 1858 | |
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 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 one or more "pantry" chambers which are used to store leaves and nuts for future consumption. The dental formula of Neotoma fuscipes is 1.0.0.31.0.0.3 × 2 = 16. [4]
The species is found in Mexico and the United States. Woodrats are found from Oregon into the northern part of Baja California. They are found along the Pacific coast, west of the deserts and Great Basin. [4] [5] Woodrats can be found near streams and in juniper and mixed coniferous forests. They prefer living in chaparral areas with dense ground cover because these areas offer a steady food supply and protection from predators, as well as an abundance of materials to build houses. [5] [6] In northeastern California, woodrats can survive in lava rims and beds with enough vegetation cover. [5]
Dusky-footed woodrats are chiefly herbivorous, but will eat insects, especially mealworms and crickets if offered; they eat a variety of cuttings from branches, leaves, fruits, and nuts. [7] Woodrats store food cuttings in their nests; with nests averaging 4.5 species of herbivorous vegetation, though they tend to have a dominant food source making up the majority of cuttings, oak ( Quercus ) is preferred if available. [4] While most woodrats are habitat generalists, eating many varieties of plants, there is evidence of local specialization in diets. [8] For example, significant differences have been observed in the diets of woodrats living only one kilometer apart, with one group living in juniper forest showing a preference for western juniper and the other, in mixed coniferous forest, substisting largely on incense cedar. [8]
Woodrats are prey items of owls, coyotes, hawks, weasels, skunks, snakes, and cats. These predators, along with humans, keep woodrat populations under control. [4] [7] [9] [10]
If a predator attacks a woodrat's nest, the woodrat may take shelter in another nearby nest. Woodrats alert each other of nearby predators by rattling their tails. [11]
Woodrats build extensive nests in trees, on the ground, and on bluffs with dense vegetation or rock cover. The conical shaped nests can be two to eight feet tall and are made of sticks, bark, and various plant matter. One nest can house successive generations of woodrats, with offspring adding to nests making them larger. The nests can have many rooms used for food storage, resting, nurseries, and protection. Nests can be built in harsh, inaccessible places such as thorny brush or poison oak patches. [4] [7] One study suggests that dusky-footed woodrats of California have been found to selectively place California bay leaves ( Umbellularia ) around the edges of their nest within their middens to control levels of ectoparasites such as fleas. [12] The leaves contain volatile organic compounds which are toxic to flea larvae. Among the terpenes most toxic to flea larvae in the bay leaves are umbellelone, cineole, and cymene. [13] Wood rats are believed to have evolved this behavioral adaptation to cope with the environmental stresses posed by ectoparasites. [13]
One study finds that a woodrat's maternal nest is an integral part of its nesting habits. When their mother moves nests, woodrats that remain in the maternal nest have a better chance of surviving than woodrats that follow their mother to her new nest. Woodrats move to the nearest viable, empty nest to their maternal nest, settling permanently after at least two moves. They often return to the maternal nest to visit. [6]
The black rat, also known as the roof rat, ship rat, or house rat, is a common long-tailed rodent of the stereotypical rat genus Rattus, in the subfamily Murinae. It likely originated in the Indian subcontinent, but is now found worldwide.
The brown rat, also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat and Norwegian rat, is a widespread species of common rat. One of the largest muroids, it is a brown or grey rodent with a body length of up to 28 cm (11 in) long, and a tail slightly shorter than that. It weighs between 140 and 500 g. Thought to have originated in northern China and neighbouring areas, this rodent has now spread to all continents except Antarctica, and is the dominant rat in Europe and much of North America. With rare exceptions, the brown rat lives wherever humans live, particularly in urban areas.
The desert woodrat is a species of pack rat native to desert regions of western North America.
The bush rat or Australian bush rat is a small Australian nocturnal animal. It is an omnivore and one of the most common indigenous species of rat on the continent, found in many heathland areas of Victoria and New South Wales.
The Neotominae are a subfamily of the family Cricetidae. They consist of four tribes, 16 genera, and many species of New World rats and mice, predominantly found in North America. Among them are the well-known deer mice, white-footed mice, packrats, and grasshopper mice.
The eastern woodrat, also known as the Florida woodrat or bush rat, is a pack rat native to the central and Eastern United States. It constructs large dens that may serve as nests for many generations and stores food in outlying caches for the winter. While widespread and not uncommon, it has declined or disappeared in several areas.
The Key Largo woodrat, a subspecies of the eastern woodrat, is a medium-sized rat found on less than 2,000 acres of the northern area of Key Largo, Florida, in the United States. It is currently on the United States Fish and Wildlife Service list of endangered species. Only 6500 animals were thought to remain in North Key Largo in the late 1980s.
The Allegheny woodrat, is a species of "pack rat" in the genus Neotoma. Once believed to be a subspecies of the eastern woodrat, extensive DNA analysis has proven it to be a distinct species.
The white-throated woodrat is a species of rodent in the family Cricetidae. It is found from central Mexico north to Utah and Colorado in the United States. It is primarily a western species in the United States, extending from central Texas west to southeastern California. Populations east of the Rio Grande in New Mexico and Trans-Pecos Texas, previously considered to be variants of the white-throated woodrat, have since 1988 been assigned to the white-toothed woodrat.
The bushy-tailed woodrat, or packrat is a species of rodent in the family Cricetidae found in Canada and the United States. Its natural habitats are boreal forests, temperate forests, dry savanna, temperate shrubland, and temperate grassland.
The California deermouse or California mouse is a species of rodent in the subfamily Neotominae in the family Cricetidae. It is the only species in the Peromyscus californicus species group. It is found in northwestern Mexico and central to southern California. It is the largest Peromyscus species in the United States.
The big-eared woodrat is a nocturnal rodent of the woodrat genus Neotoma, in the family Cricetidae. Closely related to, and formerly included in the species Neotoma fuscipes, it is endemic to western North America and occurs west and south of the Salinas Valley from the California Coast Ranges south of Monterey Bay to northern Baja California, as well as in the Sierra Nevada, extending north to the South Fork American River.
A pack rat or packrat, also called a woodrat or trade rat, are any species in the North and Central American rodent genus Neotoma. Pack rats have a rat-like appearance, with long tails, large ears, and large, black eyes. Pack rats are noticeably larger than deer mice, harvest mice, and grasshopper mice, and are usually somewhat larger than cotton rats.
Ctenophthalmus pseudagyrtes is a species of fleas in the family Hystrichopsyllidae. It is widespread in North America, east of the Rocky Mountains, and is found mainly on small mammals. In Missouri, it has been recorded on the Virginia opossum, northern short-tailed shrew, eastern mole, raccoon, eastern chipmunk, Florida woodrat, prairie vole, woodland vole, white-footed mouse, including nests, marsh rice rat, hispid cotton rat, house mouse, and brown rat. Hosts recorded in Tennessee include the Virginia opossum, northern short-tailed shrew, eastern mole, eastern chipmunk, southern red-backed vole, rock vole, woodland vole, white-footed mouse, golden mouse, hispid cotton rat, marsh rice rat, and house mouse.
The Key Largo cotton mouse is a subspecies of rodent in the family Cricetidae. The subspecies is endemic to Key Largo in the upper Florida Keys. It is a slightly larger mouse with a more reddish color than other mouse species from mainland Florida. The Key Largo cotton mouse can breed throughout the year and has an average life expectancy of five months.
Bush rat may refer to several rat species:
Neotoma findleyi, or Findley's woodrat, is an extinct species of rodent that was found in New Mexico. It lived during the Pleistocene, going extinct during the Rancholabrean.