Marmota camtschatica

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Rodentiaa
Subordo: Sciuromorpha

Familia: Sciuridae
Subfamilia: Xerinae
Tribus: Marmotini
Genus: Marmota
Species: Marmota camtschatica
Subspecies: M. c. bungei – M. c. camtschatica – M. c. doppelmayri
Name

Marmota camtschatica (Pallas, 1811)
References

Marmota camtschatica in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.
IUCN: Marmota camtschatica (Pallas, 1811) (Least Concern)

Vernacular names
English: Black-capped Marmot

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.[2] 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.[2]
Overview

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.[2] 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.[3]

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.[3]

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.[4] 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.[5] It also alters the soil properties that affect the floral structure and distribution of the Arctic tundra by burrowing, hibernation, trampling and reproduction.[6] 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.[7]
References
Wikimedia Commons has media related to Marmota camtschatica.

Cassola, F. (2017) [errata version of 2016 assessment]. "Marmota camtschatica". IUCN Red List of Threatened Species. 2016: e.T12831A115106935. doi:10.2305/IUCN.UK.2016-3.RLTS.T12831A22258500.en. Retrieved 7 December 2023.
Kryštufek, B.; B. Vohralík (2013). "Taxonomic revision of the Palaearctic rodents (Rodentia). Part 2. Sciuridae: Urocitellus, Marmota and Sciurotamias". Lynx, N. S. (Praha). 44: 27–138.
Thorington, V. Jr.; Koprowski, John L.; Steele, Michael A.; Whatton, James F. (2012). Squirrels of the World. JHU Press. pp. 276–277. ISBN 978-1-4214-0469-1.
Semenov, Y.; Ramousse, R.; Le Berre, M.; Vassiliev, V.; Solomonov, N. (April 2001). "Aboveground activity rhythm in Arctic black-capped marmot (Marmota camtschatica bungei Katschenko 1901) under polar day conditions". Acta Oecologica-International Journal of Ecology. 22 (2): 99–107. Bibcode:2001AcO....22...99S. doi:10.1016/S1146-609X(01)01103-1.
Semenov, Yu.M.; Ramuss, R.; Leberre, M. (April 2000). "Effects of Ecological Factors on the Diurnal Activity Rhythm of Yakutian Black-Capped Marmots (Marmota camtschatica bungei) in the Arctic". Russian Journal of Ecology. 31 (2): 118–122. Bibcode:2000RuJEc..31..118S. doi:10.1007/BF02828366. S2CID 34944050.
Semenov, Yu.M.; Ramousse, R.; Le Berre, M.; Tutukarov, Y. (May 2001). "Impact of the Black-Capped Marmot (Marmota camtschatica bungei) on Floristic Diversity of Arctic Tundra in Northern Siberia". Arctic, Antarctic, and Alpine Research. 33 (2): 204–210. doi:10.2307/1552221. JSTOR 1552221.

Semenov, Youri; Ramousse, Raymond; Berre, Michel Le; Tutukarov, Youri (May 2001). "Impact of the Black-capped Marmot (Marmota camtschatica bungei) on Floristic Diversity of Arctic Tundra in Northern Siberia". Arctic, Antarctic, and Alpine Research. 33 (2): 204–210. Bibcode:2001AAAR...33..204S. doi:10.1080/15230430.2001.12003423. ISSN 1523-0430. S2CID 129789528.

Thorington, R. W. Jr. and R. S. Hoffman. 2005. Family Sciuridae. pp. 754–818 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.