2/2/2024 0 Comments Rock pocket mouse activityEntrance holes may be circular, semicircular, or even crescent shaped. Similar to other rodents, this species may mark dust baths with its scent as a way to claim territory.īaja pocket mouse burrows are usually found near shrubs with multiple entrance holes. They are mostly solitary, with the exception of during mating season. There are no identified social systems in Baja pocket mice. ![]() Lifespans in the wild have not yet been established. However, it can be inferred that females take care of the young by supplying food and a nest.īaja pocket mice can live up to 3 years in captivity. Very little is known about the parental investment of Baja pocket mice. Breeding season Mating occurs from spring to late summer.Breeding interval Baja pocket mice breed twice a year.gonochoric/gonochoristic/dioecious (sexes separate).These newborns reach sexual maturity at approximately 6 months old and young born in the spring may be able to reproduce during the second pulse (late summer). The average litter size of Baja pocket mice is 2 to 5 offspring. These periods of reproductive activity follow seasonal rainfalls and increased vegetation growth. When breeding occurs in two pulses, the first one is in the spring and the second one is in late summer. Two periods of reproductive activity are possible, depending on food availability. Very little is known about how Baja pocket mice find and attract mates.īaja pocket mice once or twice a year. The dental formula for Baja pocket mice is 1 1/1, C 0/0, PM 1/1, M 3/3 making 20 teeth in total.īaja pocket mice are indistinguishable in appearance to Bailey’s pocket mice ( Chaetodipus baileyi). Like closely-related species, Baja pocket mice have fur-lined external cheek pouches that open alongside their mouths, which they use to store food. Baja pocket mice are sexually dimorphic, with males often being larger than females (there is little information on the extent of size difference between sexes). Baja pocket mice have wispy dark hairs that protrude from around their rumps. Their underparts are white, including their feet. Baja pocket mice have light, grayish-brown fur mixed with yellow on their backs and no lateral lines. The feet are relatively long and range from 26 to 30 mm long. Their ears are large and range from 8 to 11 mm long. ![]() Head to body lengths range from 86 to 107 mm and tail lengths range from 109 to 125 mm. Their tails are darker on the top and lighter on the bottom, and are longer than the combined length of their heads and bodies.
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