Home » Archive of journals » No. 2(38) 2020 » Regional biogeographic effects of “fast” climate changes in the Russian Arctic in the 21st century
REGIONAL BIOGEOGRAPHIC EFFECTS OF “FAST” CLIMATE CHANGES IN THE RUSSIAN ARCTIC IN THE 21ST CENTURYJOURNAL: No. 2(38) 2020, p. 31-44
HEADING: Research activities in the Arctic
AUTHORS: Tishkov, A.A., Belonovskaya, E.A., Vaisfeld, M.A., Glazov, P.M., Lappo, E.G., Morozova, O.V., Pokrovskaya, I.V., Tertitsky, G.M., Titova, S.V., Tsarevskaya, N.G.
ORGANIZATIONS: Institute of Geography, Russian Academy of Sciences
The article was received on: 21.01.2020
Keywords: biota, greening of tundra, Arctic zone of the Russian Federation, climate change, Arctic zone of the Russian Federation, regional effects, distribution, abundance dynamics and diversity of flora and fauna
Bibliographic description: Tishkov, A.A., Belonovskaya, E.A., Vaisfeld, M.A., Glazov, P.M., Lappo, E.G., Morozova, O.V., Pokrovskaya, I.V., Tertitsky, G.M., Titova, S.V., Tsarevskaya, N.G. Regional biogeographic effects of “fast” climate changes in the Russian Arctic in the 21st century. Arctic: ecology and economy, 2020, no. 2(38), pp. 31-44. DOI: 10.25283/2223-4594-2020-2-31-44. (In Russian).
With the general “warming” trend in the Arctic zone of the Russian Federation-(AZRF) up to 0.8—0.9°C/10 years, climate changes manifest in different ways, and biota reacts not only at different rates, but also in different directions. The Arctic “greening” (increasing the vegetation cover productivity), manifests itself unevenly and often due to different processes. In addition, the “initial positions” in the state of the Arctic biota at the beginning of the “fast” climate changes were different in the regions of the Russian Arctic. All this allows us to conclude that models demonstrating the response of Arctic ecosystems to warming, that is their almost complete disappearance with continuing temperature trends by the end of the 21st century, are not correct, and the forecasts for biotic changes are wrong. Besides the methodology of “direct” assessments of the temperature increase effects on Arctic biota by spatial extrapolations (shifting borders and replacing some biomes with others, the disappearance of cryophilic species and expansion of thermophilic plants and animal species in their place, etc.) ignores the regional specifics of the observed phenomena. The article materials are directed precisely against this “mechanistic” approach. The article considers the regional biogeographic effects of climate change in the Arctic — changes in the composition of flora and fauna, ranges of Arctic species, their migrations, etc. For analysis six regions are identified that have multidirectional and different rates of biota transformation processes — Kola-Belomorsky, Bolshezemelsky (Nenets), Yamalo-Gydansky, Taimyrsky, North-Yakutsky, North-Chukchi and South Chukchi, where the climate trends in the last three decades differed significantly in both vector and intensity (by 2 or more times). It is concluded that the results are important for developing a strategy for using biological resources, preserving the biodiversity of the Russian Arctic and protecting its territory.
Finance info: The article was prepared under RFBR grant No. 18-05-60057 “The tundra “greening” as a driver of modern dynamics of Arctic biota” and on the state assignment theme of the Institute of geography of the RAS No. 0148-2019-0007 “Assessment of physical, geographical, hydrological and biotic environmental changes and their implications for creating the basis of sustainable nature management”.
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