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Long-eared Chipmunk
Tamias quadrimaculatus Gray, 1867
También llamadaArdilla listada de orejas largas (eng) · LangohrBackenhérnchen (eng) · Long-eared Chipmunk (eng) · Tamia a grandes oreilles (eng)
Descrita por primera vez en: Ann. Mag. Nat. Hist., ser. 3 vol.20 p.435
The long-eared chipmunk (Neotamias quadrimaculatus), also called the Sacramento chipmunk or the four-banded chipmunk, is a species of rodent in the squirrel family, Sciuridae. It is endemic to the central and northern Sierra Nevada of California and Nevada in the United States. Long-eared chipmunks have the longest ears of all species of chipmunks.
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activity
Activity patterns. The Long-eared Chipmunk is terrestrial and diurnal, being active from late March to late November and hibernating during the winter. Compared with other chipmunk species, it is more active and less territorial. It is aggressive during the reproductive period. It is a very vocal species, and the vocalizations are described as “ chucks ” and “ chips, ” sometimes associated with tail flicking.
Sciuridae
biology_ecology
Habitat. Mixed conifer forests, stands of pines and firs (Pinaceae) including ponderosa pine (Pinus ponderosa), sugar pine (Pinus lambertiana), and Douglas fir (Pseudotsuga menziesii), and chaparral and brush fields. Structures that provide cover such as woody debris, stumps, and snags are important habitat features to the Long-eared Chipmunk.
Sciuridae
biology_ecology
Movements, Home range and Social organization. Home range has been estimated as 0 - 88 ha for males and 0 - 48 ha for females. In Sierra Nevada, California, densities were recorded to be as low as 7 - 6 ind / ha in white fir forests to highs of 36 ind / ha in mixedfir forests and 48 - 2 ind / ha in red-fir forests.
Sciuridae
breeding
Breeding. Breeding season begins in late April and lasts through early May, with most mating occurring during the first two weeks of May. Females produce onelitter of 2 - 6 young, with an average of 4 - 4, after a gestation of 31 days. Young reach sexual maturity at 10 - 11 months.
Sciuridae
De Wikipedia (CC BY-SA), citada sección por sección
Descripción
Male long-eared chipmunks range from 23.0–23.9 centimeters (9.1–9.4 in) in total length, while females range from 23.0–24.5 centimeters (9.1–9.6 in). The tail makes up a large part of the total length, ranging from 8.5–10.0 centimeters (3.3–3.9 in) in males and 9.0–10.1 centimeters (3.5–4.0 in) in females. Males weigh from 74.1–89.0 grams (2.61–3.14 oz), and females weigh from 81.0–105.0 grams (2.86–3.70 oz). The chipmunks are bright red-brown in color, displaying five dark stripes and four pale stripes on their backs. They also have large, noticeable white patches at the base of both ears.
Lo que hace
Long-eared chipmunks are diurnal. They forage on the ground for fungi, seeds, fruits, flowers, and insects, though in the fall they will climb conifer trees to eat seeds from the cones. The chipmunks hibernate in a den on the ground from November until March, and live in burrows or tree hollows the rest of the year. They mate in late April and May, and the young are born after one month of gestation.
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