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The Turkish hamster (''Mesocricetus brandti''), also referred to as Brandt's hamster, Azerbaijani hamster, or ''avurtlak'', is a species of
hamster Hamsters are rodents (order Rodentia) belonging to the subfamily Cricetinae, which contains 19 species classified in seven genera. They have become established as popular small pets. The best-known species of hamster is the golden or Syrian ...
native to
Turkey Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armen ...
,
Azerbaijan Azerbaijan, officially the Republic of Azerbaijan, is a Boundaries between the continents, transcontinental and landlocked country at the boundary of West Asia and Eastern Europe. It is a part of the South Caucasus region and is bounded by ...
and other surrounding nations. The Turkish hamster, first catalogued in 1878, is a fairly close relative of the Syrian or
golden hamster The golden hamster or Syrian hamster (''Mesocricetus auratus'') is a rodent belonging to the hamster subfamily, Cricetinae. Their natural geographical range is in an Arid, arid region of northern Syria and southern Turkey. Their numbers have be ...
, though far less is known about it, and it is rarely kept as a
pet A pet, or companion animal, is an animal kept primarily for a person's company or entertainment rather than as a working animal, livestock, or a laboratory animal. Popular pets are often considered to have attractive/ cute appearances, inte ...
. The population of the Turkish hamster is said to be declining in the wild, yet this hamster is often used in laboratory testing. Turkish hamsters have lifespans of about two years and are solitary,
nocturnal Nocturnality is a ethology, behavior in some non-human animals characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnality, diurnal meaning the opposite. Nocturnal creatur ...
animals, which practice
hibernation Hibernation is a state of minimal activity and metabolic reduction entered by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is mos ...
. They are reported to be more aggressive than other members of the family
Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At over 870 species, it is either the largest or second-largest family ...
. They are tan and dark, sandy brown in color. Like all hamsters, the Turkish hamster has
cheek pouch Cheek pouches are pockets on both sides of the head of some mammals between the jaw and the cheek. They can be found on mammals including the platypus, some rodents, and most monkeys, as well as the marsupial koala. The cheek pouches of chipmunk ...
es that allow it to carry large amounts of food at one time. It is named after
Johann Friedrich von Brandt Johann Friedrich von Brandt (25 May 1802 – 15 July 1879) was a German-Russian natural history, naturalist, who worked mostly in Russia. Brandt was born in Jüterbog and educated at a Gymnasium (school), gymnasium in Wittenberg and the Humboldt ...
, a German-born Russian
zoologist Zoology ( , ) is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. Zoology is one ...
and first Director of the Zoological Museum of the Academy of Science in St. Petersburg.


Habitat and behavior

Hamsters are found in the wild throughout Europe and Asia and are considered to be extremely adaptable, living in scrublands, sand dunes, desert
steppes In physical geography, a steppe () is an ecoregion characterized by grassland plains without closed forests except near rivers and lakes. Steppe biomes may include: * the montane grasslands and shrublands biome * the tropical and subtropical gr ...
and farmlands. The land where the Turkish hamster lives is extremely dry and open, with fairly little vegetation aside from grasses. Turkish hamsters usually live between 1,000 and 2,200 meters above sea level. This hamster burrows in the ground for shelter, and its
burrow file:Chipmunk-burrow (exits).jpg, An eastern chipmunk at the entrance of its burrow A burrow is a hole or tunnel excavated into the ground by an animal to construct a space suitable for habitation or temporary refuge, or as a byproduct of Animal lo ...
s can be 20 inches to 6 feet below the ground surface. These burrows are complex, consisting of several tunnels leading to separate cells for nesting, food, and waste. Turkish hamster burrows are well-enough equipped for the hamsters to hibernate for four to 10 months (though sources do differ on this point), sometimes sleeping for 30 days at a time, though usually waking weekly for a day or two of activity.


Diet

Turkish hamsters have fairly varied diets, subsisting primarily on grains and herbs. They do eat insects on occasion and store roots and leaves in their burrows for hibernation. As Turkish hamsters often live near and among farmlands, they often eat human
crop A crop is a plant that can be grown and harvested extensively for profit or subsistence. In other words, a crop is a plant or plant product that is grown for a specific purpose such as food, Fiber, fibre, or fuel. When plants of the same spe ...
s and are considered a pest.


Population and endangerment

The Turkish hamster is a rare species, but is the most widespread of the family
Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At over 870 species, it is either the largest or second-largest family ...
. Its ability to live in a variety of environments means the Turkish hamster often lives on farmlands, and is viewed as and controlled as an agricultural pest. In 1996, the Turkish hamster was categorized as an
animal Animals are multicellular, eukaryotic organisms in the Biology, biological Kingdom (biology), kingdom Animalia (). With few exceptions, animals heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, ...
with the lowest risk of extinction, but due to cases of direct poisoning by farmers, it is now
near threatened A near-threatened species is a species which has been Conservation status, categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature (IUCN) as that may be vulnerable to Endangered species, endangerment in the ne ...
. More data are needed to understand the population decline.


Reproduction

Turkish hamsters are weaned from their mothers after three weeks of nursing. After eight weeks of age, females are sexually mature, but males do not mature until six months of age. According to iucnredlist.org, Turkish hamsters have two to four litters of young per year, with four to 20 young per litter, averaging 10. Petwebsite.com differs on this point, arguing the litter size is between one and 13 young, with an average of 6. The
gestation Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals (the embryo develops within the parent). It is typical for mammals, but also occurs for some non-mammals. Mammals during pregn ...
lasts from 14 to 15 days, or 16–17 days. The two main breeding seasons are spring and fall, when daylength is about 15–17 hours per day.


Relationship to other hamsters

Turkish hamsters are most closely related to the Syrian or golden hamster. The Turkish hamster is considered to be the more aggressive of the two, but this could be because the other species has been
domesticated Domestication is a multi-generational mutualistic relationship in which an animal species, such as humans or leafcutter ants, takes over control and care of another species, such as sheep or fungi, to obtain from them a steady supply of reso ...
.


Domestic pets

Turkish hamsters are kept as a pet by some. Hamsters are aggressive by nature and these hamsters are recent pet species, yet this species is still improving. The
domestication Domestication is a multi-generational Mutualism (biology), mutualistic relationship in which an animal species, such as humans or leafcutter ants, takes over control and care of another species, such as sheep or fungi, to obtain from them a st ...
of the hamster was a fairly recent development; in 1930, a family of Syrian hamsters was domesticated, and this was the first instance of hamster domestication in history. Since then, only five of the 18 species of hamster
Campbell's dwarf hamster Campbell's dwarf hamster (''Phodopus campbelli'') is a species of hamster in the genus '' Phodopus''. It was given its common name by Oldfield Thomas in honor of Charles William Campbell, who collected the first specimen in Mongolia on July 1, ...
, the Djungarian hamster, the
Roborovski hamster The Roborovski hamster (''Phodopus roborovskii''), also known as the desert hamster, Robo dwarf hamster or simply dwarf hamster is the smallest of three species of hamster in the genus '' Phodopus'', and is native to the deserts of Central Asia. ...
, the
golden hamster The golden hamster or Syrian hamster (''Mesocricetus auratus'') is a rodent belonging to the hamster subfamily, Cricetinae. Their natural geographical range is in an Arid, arid region of northern Syria and southern Turkey. Their numbers have be ...
, and the Chinese hamster—have been domesticated and are sold in pet shops. Turkish hamsters are often used in
laboratory A laboratory (; ; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed. Laboratories are found in a variety of settings such as schools ...
experiment An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into cause-and-effect by demonstrating what outcome occurs whe ...
s.


References

{{Taxonbar, from=Q925103 Mesocricetus Hamster, Turkish Hamster, Turkish Mammals of Azerbaijan Mammals of the Middle East Mammals described in 1898 Taxa named by Alfred Nehring