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Climate change and UV-B impacts on Arctic Tundra and Polar Desert Ecosystems. Biodiversity, Distributions and Adaptations of Arctic Species in the Context of Environmental Change

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    0104182 - BU-J 20045037 RIV SE eng J - Journal Article
    Callaghan, T. V. - Björn, L. O. - Chernov, Y. - Chapin, T. - Christensen, T. R. - Huntley, B. - Ims, R. A. - Johansson, M. - Jolly, D. - Jonasson, S. - Matveyeva, N. - Panikov, N. - Oechel, W. - Shaver, G. - Elster, Josef - Henttonen, H. - Laine, K. - Taulavuori, K. - Taulavuori, E. - Zockler, Ch.
    Climate change and UV-B impacts on Arctic Tundra and Polar Desert Ecosystems. Biodiversity, Distributions and Adaptations of Arctic Species in the Context of Environmental Change.
    [Vliv klimatických změn a UV-B záření na ekosystém arktické tundry a polární pouště: biodiverzita, distribuce a adaptace arktických druhů v souvislosti s klimatickými změnami.]
    Ambio. Roč. 33, č. 7 (2004), s. 404-417. ISSN 0044-7447. E-ISSN 1654-7209
    R&D Projects: GA AV ČR KSK6005114; GA MŠMT ME 576
    Institutional research plan: CEZ:AV0Z6005908
    Keywords : cyanobacteria * algae * biodiversity
    Subject RIV: EF - Botanics
    Impact factor: 1.403, year: 2004

    The individual of a species is the basic unit, which responds to climate and UV-B changes, and it responds over a wide range of time scales. The diversity of animal, plant and microbial species appears to be low in the Arctic, and decreases from the boreal forests to the polar deserts of the extreme North but primitive species are particularly abundant. This latitudinal decline is associated with an increase in super-dominant species that occupy a wide range of habitats. Climate warming is expected to reduce the abundance and restrict the ranges of such species and to affect species at their northern range boundaries more than in the South: some Arctic animal and plant specialists could face extinction.

    V Arktické oblasti organismy na úrovni druhu jsou zodpovědné na reakce ekosystému spojené s klimatickými výkyvy a UV-B zářením. Diverzita rostlin, živočichů a mikroorganismů arktické oblasti je nízká a klesá s zeměpisnou šířkou. Tento pokles druhové diverzity je spojen s růstem zastoupení primitivních na klimatické vlivy a UV-B záření odolných druhů.
    Permanent Link: http://hdl.handle.net/11104/0011461

     
     
Number of the records: 1  

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