* Василий Владимирович Николаев, канд. ист. наук, научный сотрудник, Институт археологии и этнографии СО РАН, РФ, 630090, г. Новосибирск, пр. <...> Пирогова, 2 e-mail: nikolaevvv06@mail.ru Статья посвящена демографическим трансформациям у кумандинцев и челканцев, вызванных Великой Отечественной войной Рассматриваются изменения в половозрастной структуре, делается вывод о кризисном состоянии у них демографической сферы после войны, ухудшении условий жизни. <...> NIKOLAEV THE AGE-SEX STRUCTURE OF ETHNO-LOCAL GROUPS OF KUMANDINS AND CHELKANS IN THE 1940–1950S Vasily V. Nikolaev, Candidate of Historical Sciences, Researcher Institute of Archaeology and Ethnography SB RAS, 17, Ak. <...> Lavrentiev str., Novosibirsk, 630090, Russia, Novosibirsk national research state university, 2, Pirogova str., Novosibirsk, 630090, Russia, e-mail: nikolaevvv06@mail.ru The article deals with demographic transformations of the ethno-local groups of Kumandins and Chelkans as a result of the Great Patriotic War as exemplifi ed by the age-sex structure. <...> The Great Patriotic War produced catastrophic demographic effects on the indigenous peoples and resulted in more than 1000 deaths. <...> The analysis of age-sex structure allows to reconstruct these effects. <...> The research objective is to consider demographic transformations of the indigenous peoples as a result of the Great Patriotic War (1941-1945) by the example of ethno-local groups of Kumandins and Chelkans. <...> Despite the considerable volume of publications about the Great Patriotic War, the problem of participation indigenous people of Siberia and the North in this war remains understudied. <...> In particular, there are virtually no studies on the demography of indigenous peoples during this period. <...> In general, the data on the age and sex composition of the Kumandins of the Nizhneneninsk and Suzop Village Councils, as well <...>