Peatlands are one of the most important ecosystems due to their biodiversity and abundant organic compounds; therefore, it is important to observe how different plant species in peatlands react to changing environmental conditions. Sphagnum spp. are the main component of peatlands and are considered as the creator of conditions favorable for carbon storage in the form of peat. Sphagnum angustifolium and Sphagnum fallax are taxonomically very close species. To examine their adaptability to climate change, we studied the morphology and pigment content of these two species from environmental manipulation sites in Poland, where the environment was continuously manipulated for temperature and precipitation. The warming of peat was induced by using infrared heaters, whereas total precipitation was reduced by a curtain that cuts the nighttime precipitation. Morphology of S. angustifolium stayed under climate manipulation relatively stable. However, the main morphological parameters of S. fallax were significantly affected by precipitation reduction. Thus, this study indicates S. angustifolium is better adapted in comparison to S. fallax for drier and warmer conditions.

Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 6 61 614 Poznań Poland

Department of Botany and Plant Physiology Faculty of Agrobiology Food and Natural Resources Czech University of Life Sciences 16500 Prague Czech Republic

Department of Hydrobiology Adam Mickiewicz University in Poznań Uniwersytetu Poznańskiego 6 61 614 Poznań Poland

Department of Plant Physiology Slovak University of Agriculture A Hlinku 2 94976 Nitra Slovak Republic

Laboratory of Bioclimatology Department of Ecology and Environmental Protection Poznan University of Life Sciences Piątkowska 94 60 649 Poznan Poland

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