Woodrat, Packrat, Bushy-tailed woodrat, Packrat
The bushy-tailed woodrat, or packrat (Neotoma cinerea ) 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 bushy-tailed woodrat is the original "pack rat", the species in which the trading habit is most pronounced. It has a strong preference for shiny objects and will drop whatever it may be carrying in favor of a coin or a spoon.
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NocturnalNocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal",...
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HerbivoreA herbivore is an animal anatomically and physiologically adapted to eating plant material, for example, foliage, for the main component of its die...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
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AltricialAltricial animals are those species whose newly hatched or born young are relatively immobile. They lack hair or down, are not able to obtain food ...
Among animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
A territory is a sociographical area that which an animal consistently defends against the conspecific competition (or, occasionally, against anima...
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PolygynyPolygyny is a mating system in which one male lives and mates with multiple females but each female only mates with a single male.
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PolygynandryPolygynandry is a mating system in which both males and females have multiple mating partners during a breeding season.
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starts withThe Bushy-tailed woodrat is a rodent that lives in the United States and Canada. It is clearly distinguished by its bushy tail and big ears. This large, gentle rodent is like a squirrel. Its adult fur is long, soft, and dense, and is usually gray on its back and tawny brown on the sides. Its feet and undersides are white. The longevity of this species is little known, but one captive individual lived for 5.8 years
Bushy-tailed woodrats inhabit western North America, from arctic Canada south to northern Arizona and New Mexico, and eastwards to the western parts of the Dakotas and Nebraska. They occur in a wide variety of habitats, from deserts to boreal forests. Their prefer to live in and around rocky areas, often along canyons, cliffs, open rocky fields and talus slopes. They adapt readily to buildings and mines that have been abandoned.
Bushy-tailed woodrats are active year round. They are nocturnal animals, solitary, and very territorial, defending their ranges by means of scent markings and confrontational encounters. They have fairly limited home ranges. It used to be thought that they didn’t venture more than 60 m away from their nests, but it has been observed that a female may forage up to 500 m from her nest. The Bushy-tailed woodrat makes a midden of plant material and feces which solidify with crystallized urine. The nest is usually hidden in a rock crevice or a pile of sticks. These animals also build several caches for food, which they use during the winter. This species does not hibernate.
The Bushy-tailed woodrat is a generalist herbivore and favors green vegetation (leaves, shoots and needles), but it will also eat twigs, fruits, seeds, nuts mushrooms, and some animal material. A southeastern Idaho study found grasses, cactus, vetch, mustard plants and sagebrush in their diets, with a few arthropods as well. In drier habitats, these animals eat more succulent plants.
The reproductive cycle of these woodrats is not fully understood. Various authors have considered them polygynous (with one male mating with multiple females), and/or polygynandrous (males and females both mating with multiple mates - promiscuous). Often these conclusions are drawn not through observing mating behavior, but due to the size and overlapping of the ranges of males and females. Breeding mainly takes place form May through to August (spring and summer). Litters can be as many as six young (3 on average), and a mother may bear as many as three litters per year. Females can breed again within twelve hours after giving birth, and so may be pregnant with one litter when nursing another. The gestation period of this species in captivity is 27-32 days. The eyes of a newborn open at about 15 days old, and the young are weaned at 26-30 days. Females mate for the first time as yearlings.
There are currently no major threats to Bushy-tailed woodrats.
According to IUCN, Bushy-tailed woodrat is very wide ranging, but no overall population estimate is available. This species’ numbers remain stable today and it is classified as Least Concern (LC) on the IUCN Red List.
The Bushy-tailed woodrat is one of the major food items for northern spotted owls, a species which is in jeopardy because of range reductions due to logging.
