The black-capped marmot (Marmota camtschatica ) is a species of rodent in the family Sciuridae. It is endemic to the Russian Far East, but its range is discontinuous and divided into three main parts, each with its own subspecies. The black-capped marmot lives in arctic tundra and alpine habitats from near sea-level to an altitude of 2,000 m (6,600 ft). Depending on exact subpopulation, they hibernate for 6–8 months each year, which is long for a marmot.
It is a relatively small marmot (head-and-body length c. 39.5–61.5 cm or 15.6–24.2 in, weight 1.65–5.4 kg or 3.6–11.9 lb) with a short tail. The dorsal pelage is a grizzled yellowish-grey while the underparts are cinnamon or rusty brown. The limbs are rather paler while the tail is brownish-black. The upper part of the head is brownish-black, and this colour continues to the mid-back as a dorsal stripe.
Black-capped marmots feed on grasses, herbs and mosses. They live in colonies formed from many separate burrows, each occupied by an adult pair and their offspring. A litter consists of five or six young but these stay in the family group for at least three years. The marmots congregate in larger groups to hibernate. The sleeping chamber has large quantities of bedding material and the entrances are plugged.
The black-capped marmot hibernates from September to mid-May. It is a diurnal and sedentary mammal. It is subject to extreme conditions throughout the year. The solar altitude plays a significant role in the daily activity pattern of family groups of black-capped marmots. So, the terrestrial activity of black-capped marmots is dependent on daylight period. They usually eliminate heat by lying on rocks or by entering the burrows. It also alters the soil properties that affect the floral structure and distribution of the Arctic tundra by burrowing, hibernation, trampling and reproduction. The main area (center) where the marmots live are gathered in two larger rooms typically so the family can hibernate in these areas. This is usually where the females give birth.
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DiurnalDiurnal animals are active during the daytime, with a period of sleeping or other inactivity at night. The timing of activity by an animal depends ...
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FolivoreIn zoology, a folivore is a herbivore that specializes in eating leaves. Mature leaves contain a high proportion of hard-to-digest cellulose, less ...
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FrugivoreA frugivore is an animal that thrives mostly on raw fruits or succulent fruit-like produce of plants such as roots, shoots, nuts, and seeds. Approx...
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GranivoreSeed predation, often referred to as granivory, is a type of plant-animal interaction in which granivores (seed predators) feed on the seeds of pla...
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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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ZoochoryZoochory animals are those that can disperse plant seeds in several ways. Seeds can be transported on the outside of vertebrate animals (mostly mam...
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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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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Among animals, viviparity is the development of the embryo inside the body of the parent. The term 'viviparity' and its adjective form 'viviparous'...
A 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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Cooperative breederCooperative breeding is a social system where offspring receive care not only from their parents but also from additional group members, often call...
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MonogamyMonogamy is a form of relationship in which both the male and the female has only one partner. This pair may cohabitate in an area or territory for...
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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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Social animals are those animals that interact highly with other animals, usually of their own species (conspecifics), to the point of having a rec...