The long-eared jerboa (Euchoreutes naso ) is a nocturnal mouse-like rodent with a long tail, long hind legs for jumping, and exceptionally large ears. It is distinct enough that authorities consider it to be the only member of both its genus, Euchoreutes, and subfamily, Euchoreutinae.
Long-eared jerboas are found in the Palearctic ecozone. The specific palearctic ecozone areas they are found in are southernmost Mongolia to the Takla-Makan Desert, Mengxin, Aerijin Mountain, and Qing-Zang Plateau regions of north western China. Long-eared jerboas in most cases are nocturnal, The long-eared jerboa's fur according to the book 100 animals to see before they die "is reddish yellow to pale russet with white underparts." Very little is known about the species.
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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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InsectivoresAn insectivore is a carnivorous plant or animal that eats insects. An alternative term is entomophage, which also refers to the human practice of e...
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CarnivoreA carnivore meaning 'meat eater' is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of a...
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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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BurrowingA burrow is a hole or tunnel excavated into the ground by an animal to create a space suitable for habitation, temporary refuge, or as a byproduct ...
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FossorialA fossorial animal is one adapted to digging which lives primarily but not solely, underground. Some examples are badgers, naked mole-rats, clams, ...
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JumpingJumping (saltation) can be distinguished from running, galloping, and other gaits where the entire body is temporarily airborne by the relatively l...
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ViviparousAmong animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
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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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HibernatingHibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy charac...
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Not a migrantAnimals that do not make seasonal movements and stay in their native home ranges all year round are called not migrants or residents.
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Long-Tailed AnimalsThe Llong-eared jerboa, which inhabits China and Mongolia, is a rodent with features similar to those of a mouse and some further very interesting features. Some scientists are of the opinion that it could be distantly related to the gerbil. Its tail is twice its body length, giving it good balance when it runs and jumps. It has long back legs with large feet and moves much like a kangaroo. The soles of their feet are covered in stiff hairs which help when traveling over the desert. The front legs are relatively rather small, and they are not useable for getting around. Species from this family are usually characterized by their amazing adaptations for jumping, thought to be an evolution as a strategy to deal with predators. The life span of Long-eared jerboas is unknown, however, their average longevity is 2 to 3 years.
Long-eared jerboas inhabit the Palearctic region, from the southern tip of Mongolia in the Takla-Makan Desert, Aerijin Mountain, Mengxin, and Qing-Zang Plateau areas of north western China. They live in desert habitats, preferring sandy river basins and low shrub cover.
Because these animals live in parts of China and Mongolia that are so remote, it is hard for scientists to study them, and therefore there is very little known about this tiny animal. All information about their social behavior is taken from data about related species. Other jerboas are primarily nocturnal and solitary, spending the day in the underground burrows which they have dug, often creating four different types: a temporary, day, summer burrow for cover when hunting in the daytime, a second temporary burrow for hunting at night, as well as two permanent burrows: a summer one and a winter one. Permanent summer burrows are used throughout summer and this is where the young are raised. Jerboas hibernate in the winter in the permanent winter burrow. Long-eared jerboas hop like kangaroos, jumping over the sand.
Long-eared jerboas are insectivorous, they eat mostly flying insects.
The mating system for these animals is not known. However, that of a closely related species suggests that it could be polygynous. For closely related jerboa species breeding usually happens soon after emerging from winter hibernation. Females breed twice during summer and raise 2 to 6 young. The gestation period is from 25 to 35 days. Not much is known about parental care, but like most mammals, long-eared jerboas nurse and look after their offspring at least until weaning takes place.
The greatest threat to this species is human disturbance to its habitat. Greater numbers of grazing livestock could be a threat in certain areas, as are drought and the drying up of water sources.
According to IUCN, Long-eared jerboa is widely distributed throughout its range but no overall population estimate is available. Currently this species is classified as Least Concern (LC) on the IUCN Red List.
Being insectivorous, these animals affect insect populations in their range.
