Transbaikal, Trans-Baikal, Transbaikalia (Russian: Забайка́лье, tr. Zabaykalye, IPA: [zəbɐjˈkalʲjɪ]), or Dauria (Даурия, Dauriya) is a mountainous region to the east of or "beyond" (trans-) Lake Baikal in Russia.
The alternative name of the Transbaikal, Dauria, derives from the ethnonym of the former inhabitants, the Daur people, whom Russian explorers first encountered in 1640.
Dauria stretches for almost 1,000 km from north to south from the Patom Plateau and North Baikal Plateau to the Russian state borders with Mongolia and China. The Transbaikal region covers more than 1,000 km from west to east from Lake Baikal to the meridian of the confluence of the Shilka and Argun Rivers. To the west and north lies the Irkutsk Oblast; to the north the Republic of Sakha (Yakutia), to the east the Amur Oblast.
In Imperial Russia, Dauria itself became an oblast - the Transbaikal Oblast (Russian: Забайкальская область), established in 1851, with its capital at Nerchinsk, then at Chita. It became part of the short-lived Far Eastern Republic between 1920 and 1922.
Fauna and flora
The region has given its name to various animal species including Daurian hedgehog, and the following birds: Asian brown flycatcher (Muscicapa daurica), Daurian jackdaw, Daurian partridge, Daurian redstart, Daurian starling, Daurian shrike and the red-rumped swallow (Hirundo daurica). The Mongolian wild ass (Equus hemionus hemionus) is extinct in the region.
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