The reindeer, known as caribou when wild in North America, is an Arctic and Subarctic-dwelling deer (Rangifer tarandus).
Domesticated reindeer are mostly found in Northern Scandinavia and Russia, and wild reindeer are mostly found in North America, Greenland and Iceland (introduced by man in the 19th century). The last wild reindeer in Europe are found in habitats in southern Norway. Its natural occurrence is approximately bounded within the 62° latitude.
A handful of reindeer from Norway were introduced to the South Atlantic island of South Georgia (South Georgia and the South Sandwich Islands) in the beginning of the 20h century. Today there are two distinct herds still thriving there but they have been permanently separated by mountains. Their total numbers are no more than a couple of thousand. (The flag and the coat of arms of the SGSSI, officially an overseas territory of the United Kingdom, contain an image of a reindeer.)
Reindeer are ruminants, having a four-chambered stomach. They mainly eat lichens in winter, especially reindeer moss. However, they also eat the leaves of willows and birches, as well as sedges and grasses. They can also eat voles (lat. Clethrionomys glareolus), lemmings (lat. Lemmus lemmus), birds and bird eggs.
Reindeer have specialized noses featuring nasal turbinate bones that dramatically increase the surface area within the nostrils. Incoming cold air is warmed by the animal's body heat before entering the lungs, and water is condensed from the expired air and captured before the deer's breath is exhaled, used to moisten dry incoming air and possibly absorbed into the blood through the mucous membranes.
Reindeer hooves adapt to the season: in the summer, when the tundra is soft and wet, the footpads become spongy and provide extra traction. In the winter, the pads shrink and tighten, exposing the rim of the hoof which cuts into the ice and crusted snow to keep the animal from slipping.
The reindeer coat has two layers of fur, a dense woolly undercoat and longer-haired overcoat consisting of hollow, air-filled hairs. A caribou or reindeer swims easily and fast; migrating herds will not hesitate to swim across a large lake or broad river.
There are an estimated 5 million reindeer in Eurasia, mainly semi-domesticated. The last remaining European herds of the genetic wild reindeer are found in central Norway, mainly in the mountainous areas of Rondane, Hardangervidda, Dovre and Forollhogna. Other areas, such as Filefjell, have populations of reindeer that have been herded in the past but are now left free. Wild reindeer are considered to be very vulnerable to human disturbance, especially during the calving period in April.
Males usually split apart from the group and become solitary, while the remaining herd consists mostly of females, usually a matriarchy.
Parasites include warble flies, mosquitoes, and nose bot flies. Roundworms and tapeworms can also afflict reindeer.
Diseases include brucellosis, foot rot, and keratitis (white-eye, an infection of the eye).
The use of reindeer as semidomesticated livestock in Alaska was introduced in the late 1800s by Sheldon Jackson as a means of providing a livelihood for Native peoples there. A regular mail run in Wales, Alaska used a sleigh drawn by reindeer. In Alaska, reindeer herders use satellite telemetry to track their herds, using online maps and databases to chart the herd's progress.
The reindeer has (or has had) an important economic role for all circumpolar peoples, including the Sami, Nenets, Khants, Evenks, Yukaghirs, Chukchi and Koryaks in Eurasia. It is believed that domestication started between Bronze Age-Iron Age. Siberian deer-owners also use the reindeer to ride on. (Siberian reindeer are larger than their Scandinavian relatives.) For breeders, a single deer-owner usually own some hundreds or up to thousands of animals. The numbers of Russian herders have been drastically reduced since the fall of the Soviet Union. The fur and meat is sold, which is an important source of income. Reindeer were introduced into Alaska near the end of the 19th century; they interbreed with native caribou subspecies there. Reindeer herders on the Seward Peninsula have experienced significant losses to their herds from animals following the wild caribou during their migrations.
Reindeer meat is popular in the Scandinavian countries. Reindeer meatballs are sold canned. Reindeer stew is the best-known dish in Lapland. In Alaska, reindeer sausage is sold locally to supermarkets and grocery stores.
Reindeer antler is powdered and sold as a nutritional or medicinal supplement to Asian markets.
Deer | Arctic land animals | Fauna of Canada | Fauna of Finland | Fauna of Norway | Fauna of Russia | Fauna of Sweden | Fauna of the United States | Fauna of the Scottish Highlands
Hrān | Rensdyr | Ren | Τάρανδος | Rangifer tarandus | Boaco | Renne | Reno | Rentiro | Rangifer tarandus | Šiaurinis elnias | Rénszarvas | Rendier | トナカイ | Rein | Reinsdyr | Renifer | Rena | Северный олень | Reindeer | Poro | Ren | 驯鹿属
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