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Can paleorefugia of cold-adapted species in talus slopes resist global warming?
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SYSNO ASEP 0444869 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Can paleorefugia of cold-adapted species in talus slopes resist global warming? Author(s) Růžička, Vlastimil (BC-A) RID, ORCID
Zacharda, M. (CZ)
Šmilauer, P. (CZ)
Kučera, T. (CZ)Number of authors 4 Source Title Boreal Environment Research - ISSN 1239-6095
Roč. 20, č. 3 (2015), s. 403-412Number of pages 10 s. Language eng - English Country FI - Finland Keywords global warming Subject RIV EH - Ecology, Behaviour Institutional support BC-A - RVO:60077344 UT WOS 000356985600008 EID SCOPUS 84930028866 Annotation In central Europe, some boreal and arctic organisms can survive in low-altitude freezing talus slopes disjunct from their normal ranges far to the north. The external air temperature and the interior temperature of the talus were measured for five years at three low-elevation talus slopes in North Bohemia (Czech Republic). The year-round interplay between both temperature regimes was affected both by below-average as well as above-average climatic variations during winters 2005–2006 and 2006–2007, respectively. The total of air-freezing degree-days per year was confirmed to be the best and sufficient predictor for all considered thermal characteristics in the lower part of the talus slopes. Persistency of cold talus thermal behavior supports Nekola’s concept of paleorefugia inhabited by cold-adapted species of boreal origin. Our results suggest that the talus microclimate can be sufficiently resistant to an increase of mean annual atmospheric temperature by 3 degree Celsius, retaining a sufficient number of freezing days during the winter season. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2016 Electronic address http://www.borenv.net/BER/pdfs/ber20/ber20-403.pdf
Number of the records: 1