Mammals of the Periglacial Hyperzone of the End of Pleistocene and the Formation of the Modern Rodent Fauna of the Mountains of West and Middle Siberia
T. A. DUPAL1, O. V. ANDRENKO2, V. V. VINOGRADOV3
1Institute of Systematics and Ecology of Animals SB RAS, 630091, Novosibirsk, Frunze str., 11
gf@eco.nsc.ru
2Krasnoyarsk State Medical University, 660022, Krasnoyarsk, Partizan Zheleznyak str., 1
3Krasnoyarsk State Pedagogical University, 660049, Krasnoyarsk, A. Lebedeva str., 89
vlad-vin@yandex.ru
Keywords: late Pleistocene, Holocene, fauna, rodents, mountains, West and Middle Siberia
Pages: 123-134
Abstract
Fossil and modern faunas of small mammals of the end of Pleistocene to modern time in the south of West and Middle Siberia were anаlyzed. It is shown that during Sartan the typical hyperborean complex of mammals was spread to the middle reach of the Yenisey. In the north-west of the Altay, the hyperborean complex of the mammals of southern type existed at the end of Pleistocene; it had its specific regional features. Warming and an increase in humidity in Holocene caused the disappearance of periglacial landscape and reduction of the area occupied by the tundra-steppe ecotopes. Expansion of the forest belt caused degradation of the hyperborean complex of mammals. In the second half of Holocene, the formation of forest and forest-steppe complexes of small mammals occurred.
|
