The great majority of Siberia's population is made up of Russians and Ukrainians. Non-Russian groups include Turkic-speaking nationalities in the Altai Republic, the Khakass Republic, the Tuva Republic, and the Kemerovo Region; Buryat-Mongols in the Buryat Republic, the Irkutsk region, and Transbaykal Territory; Finno-Ugric Ostyaks (Khant) and Voguls (Mansi) in the Khanty-Mansi Autonomous Area; Nenets (Samoyedes) in the Taymyr Peninsula of Krasnoyarsk Territory and the Yamalo-Nenets Autonomous Area; and Tungus Evenki in Krasnoyarsk Territory. The largely nomadic Mongol and Turkic herders of S Siberia mostly settled down to agriculture under the Soviet government. The indigenous peoples of central and N Siberia remain mostly hunters and fishermen. The chief non-Christian religions are Islam and Tibetan Buddhism in the south, and forms of shamanism elsewhere.