Experimental warming and precipitation reduction affect the biomass of microbial communities in a Sphagnum peatland

Basińska, Anna; Reczuga, Monika; Gąbka, Maciej; Stróżecki, Marcin; Łuców, Dominika; Samson, Mateusz; Urbaniak, Marek; Leśny, Jacek; Chojnicki, Bogdan H.; Gilbert, Daniel; Sobczyński, Tadeusz; Olejnik, Janusz; Silvennoinen, Hanna; Juszczak, Radosław; Lamentowicz, Mariusz

doi:10.1016/j.ecolind.2019.106059

Cited by 42 publications

(29 citation statements)

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“…For the purpose to minimize the cost of heating the experimental plots are grouped together. In previous works the experimental setup and manipulation methods are described in detail 10,28,55 .…”

Section: Discussionmentioning

confidence: 99%

“…peatland area in Poland. The microclimate of the site was continuously manipulated from 2014 to 2018 10,[28][29][30][31] . Temperature and precipitation were recorded continuously at each of the four experimental sites marked as Control (C), Warming (W), Warming and Reduced Precipitation (WRP) and Reduced Precipitation (RP).…”

Section: Variability In Micrometeorological Data Of Manipulated Plotsmentioning

confidence: 99%

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Impact of warming and reduced precipitation on morphology and chlorophyll concentration in peat mosses (Sphagnum angustifolium and S. fallax)

Rastogi

Antala

Gąbka

et al. 2020

Sci Rep

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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. Climate change is appearing to be the biggest problem of this century. It is estimated that anthropogenic activities have caused global warming by approximately 1.0 °C in comparison with the pre-industrial era. The global warming rate is currently estimated to be 0.2 °C per decade; therefore, it is a high probability that the average global temperature may reach 1.5 °C higher in between 2032 and 2050 1. Rainfall patterns affect surface wetness and water availability to plants; therefore, its alteration may directly impact the primary productivity 2. In this changing environmental condition, plants may either adapt, move to suitable climatic conditions, or may get extinct 3. With the change in plant species composition, the ecosystem may also lose its identity and can turn into a different ecosystem with changing environmental conditions 4. Therefore, to understand the faith of the ecosystem in changing environmental conditions, it is crucial to study the behavior of different plant species. Due to their high carbon storage capacity, peatlands are considered to be one of the most important ecosystems 5. Peatlands cover only around 4 million km 2 what amounts to 3% of the world's terrestrial area, but contains around one-third of the terrestrial carbon 6. About 80% of the world's peatlands occur in the northern hemisphere 7 , and they constitute about 515 000 km 2 in Europe 6. Due to their high carbon storage, peatlands have attracted a lot of attention to environmental scientists 8-10. It is still uncertain that under new climatic conditions (due to warming and changed precipitation) pristine peatlands will work like carbon sink or they will become a

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Section: Discussionmentioning

confidence: 99%

Section: Variability In Micrometeorological Data Of Manipulated Plotsmentioning

confidence: 99%

Impact of warming and reduced precipitation on morphology and chlorophyll concentration in peat mosses (Sphagnum angustifolium and S. fallax)

Rastogi

Antala

Gąbka

et al. 2020

Sci Rep

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“…Yes Han et al, 2011;Gomaa et al, 2012;Macumber et al, this issue;Lahr et al, 2019;Krashevska et al, 2020 Aperture size (µm) Width of the shell aperture Related to prey size and food web functioning Yes Jassey et al, 2013aJassey et al, ,b, 2016Meyer et al, 2013;Gomaa et al, 2014;Fournier et al, 2015;Marcisz et al, 2016;Koenig et al, 2017Koenig et al, , 2018aKrashevska et al, 2020;Marcisz et al, 2020 (Continued) Frontiers in Ecology and Evolution | www.frontiersin.org Heal, 1964;Schönborn, 1965;Yeates and Foissner, 1995;Gilbert et al, 2000Gilbert et al, , 2003Jassey et al, 2012Jassey et al, , 2015Krashevska et al, 2012Krashevska et al, , 2020Marcisz et al, 2014bMarcisz et al, , 2015Marcisz et al, , 2016Marcisz et al, , 2019Marcisz et al, , 2020Fournier et al, 2015;Payne et al, 2016;Gałka et al, 2017;Koenig et al, 2017Koenig et al, , 2018aRatcliffe et al, 2017;Creevy et al, 2018;van Bellen et al, 2018;Herbert et al, 2019;Basińska et al, 2020;Lamentowicz et a...…”

Section: Aperture Positionmentioning

confidence: 99%

Testate Amoeba Functional Traits and Their Use in Paleoecology

et al. 2020

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This review provides a synthesis of current knowledge on the morphological and functional traits of testate amoebae, a polyphyletic group of protists commonly used as proxies of past hydrological changes in paleoecological investigations from peatland, lake sediment and soil archives. A trait-based approach to understanding testate amoebae ecology and paleoecology has gained in popularity in recent years, with research showing that morphological characteristics provide complementary information to the commonly used environmental inferences based on testate amoeba (morpho-)species data. We provide a broad overview of testate amoeba morphological and functional traits and trait-environment relationships in the context of ecology, evolution, genetics, biogeography, and paleoecology. As examples we report upon previous ecological and paleoecological studies that used trait-based approaches, and describe key testate amoebae traits that can be used to improve the interpretation of environmental studies. We also highlight knowledge gaps and speculate on potential future directions for the application of trait-based approaches in testate amoeba research.

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“…In total 54 samples were taken (6 combinations of treatments * 3 replicates * 3 seasons). We sampled only the top part of the mosses as previous studies proved this part to be the most sensitive to the changes in the water table depth and warming manipulations ( Basińska et al., 2020 ; Reczuga et al, 2018 ). DNA was extracted using the PowerSoil®DNA isolation kit (MoBio, Carlsbad, CA USA) according to the manufacturer’s instruction.…”

Section: Methodsmentioning

confidence: 99%

Assessing the responses of Sphagnum micro-eukaryotes to climate changes using high throughput sequencing

Reczuga

Seppey

Mulot

et al. 2020

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Current projections suggest that climate warming will be accompanied by more frequent and severe drought events. Peatlands store ca. one third of the world’s soil organic carbon. Warming and drought may cause peatlands to become carbon sources through stimulation of microbial activity increasing ecosystem respiration, with positive feedback effect on global warming. Micro-eukaryotes play a key role in the carbon cycle through food web interactions and therefore, alterations in their community structure and diversity may affect ecosystem functioning and could reflect these changes. We assessed the diversity and community composition of Sphagnum-associated eukaryotic microorganisms inhabiting peatlands and their response to experimental drought and warming using high throughput sequencing of environmental DNA. Under drier conditions, micro-eukaryotic diversity decreased, the relative abundance of autotrophs increased and that of osmotrophs (including Fungi and Peronosporomycetes) decreased. Furthermore, we identified climate change indicators that could be used as early indicators of change in peatland microbial communities and ecosystem functioning. The changes we observed indicate a shift towards a more “terrestrial” community in response to drought, in line with observed changes in the functioning of the ecosystem.

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Experimental warming and precipitation reduction affect the biomass of microbial communities in a Sphagnum peatland

Cited by 42 publications

References 70 publications

Impact of warming and reduced precipitation on morphology and chlorophyll concentration in peat mosses (Sphagnum angustifolium and S. fallax)

Impact of warming and reduced precipitation on morphology and chlorophyll concentration in peat mosses (Sphagnum angustifolium and S. fallax)

Testate Amoeba Functional Traits and Their Use in Paleoecology

Assessing the responses of Sphagnum micro-eukaryotes to climate changes using high throughput sequencing

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