Articles | Volume 15, issue 6
Research article 29 Mar 2018
Research article | 29 Mar 2018
Soil microbial biomass, activity and community composition along altitudinal gradients in the High Arctic (Billefjorden, Svalbard)
Petr Kotas et al.
No articles found.
Peter Kuhry, Jiří Bárta, Daan Blok, Bo Elberling, Samuel Faucherre, Gustaf Hugelius, Christian J. Jørgensen, Andreas Richter, Hana Šantrůčková, and Niels Weiss
Biogeosciences, 17, 361–379,
Stefano Manzoni, Petr Čapek, Philipp Porada, Martin Thurner, Mattias Winterdahl, Christian Beer, Volker Brüchert, Jan Frouz, Anke M. Herrmann, Björn D. Lindahl, Steve W. Lyon, Hana Šantrůčková, Giulia Vico, and Danielle Way
Biogeosciences, 15, 5929–5949,Short summary
Carbon fixed by plants and phytoplankton through photosynthesis is ultimately stored in soils and sediments or released to the atmosphere during decomposition of dead biomass. Carbon-use efficiency is a useful metric to quantify the fate of carbon – higher efficiency means higher storage and lower release to the atmosphere. Here we summarize many definitions of carbon-use efficiency and study how this metric changes from organisms to ecosystems and from terrestrial to aquatic environments.
N. Gentsch, R. Mikutta, R. J. E. Alves, J. Barta, P. Čapek, A. Gittel, G. Hugelius, P. Kuhry, N. Lashchinskiy, J. Palmtag, A. Richter, H. Šantrůčková, J. Schnecker, O. Shibistova, T. Urich, B. Wild, and G. Guggenberger
Biogeosciences, 12, 4525–4542,
Related subject area
Biodiversity and Ecosystem Function: Microbial Ecology & GeomicrobiologyUncovering chemical signatures of salinity gradients through compositional analysis of protein sequencesCryptic roles of tetrathionate in the sulfur cycle of marine sediments: microbial drivers and indicatorsLake mixing regime selects apparent methane oxidation kinetics of the methanotroph assemblageThe composition of endolithic communities in gypcrete is determined by the specific microhabitat architectureDeep maxima of phytoplankton biomass, primary production and bacterial production in the Mediterranean Sea during late springThe contribution of microbial communities in polymetallic nodules to the diversity of the deep-sea microbiome of the Peru Basin (4130–4198 m depth)The haplo-diplontic life cycle expands niche space of coccolithophoresThe pH-based ecological coherence of active canonical methanotrophs in paddy soilsBiogeographical distribution of microbial communities along the Rajang River–South China Sea continuumMicrobial community composition and abundance after millennia of submarine permafrost warmingCold-water corals and hydrocarbon-rich seepage in Pompeia Province (Gulf of Cádiz) – living on the edgeEcophysiological characteristics of red, green, and brown strains of the Baltic picocyanobacterium Synechococcus sp. – a laboratory studyFactors controlling the community structure of picoplankton in contrasting marine environmentsCommunity composition and seasonal changes of archaea in coarse and fine air particulate matterMicrobial community structure in the western tropical South PacificEcophysiological characterization of early successional biological soil crusts in heavily human-impacted areasPlant n-alkane production from litterfall altered the diversity and community structure of alkane degrading bacteria in litter layer in lowland subtropical rainforest in TaiwanRevisiting chlorophyll extraction methods in biological soil crusts – methodology for determination of chlorophyll a and chlorophyll a + b as compared to previous methodsDivergence of dominant factors in soil microbial communities and functions in forest ecosystems along a climatic gradientUncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crustsAntagonistic effects of drought and sand burial enable the survival of the biocrust moss Bryum argenteum in an arid sandy desertMicrobial methanogenesis in the sulfate-reducing zone of sediments in the Eckernförde Bay, SW Baltic SeaFerrihydrite-associated organic matter (OM) stimulates reduction by Shewanella oneidensis MR-1 and a complex microbial consortiaEffects of temperature on the composition and diversity of bacterial communities in bamboo soils at different elevationsDevelopment of bacterial communities in biological soil crusts along a revegetation chronosequence in the Tengger Desert, northwest ChinaViable cold-tolerant iron-reducing microorganisms in geographically diverse subglacial environmentsDiversity and mineral substrate preference in endolithic microbial communities from marine intertidal outcrops (Isla de Mona, Puerto Rico)Archive of bacterial community in anhydrite crystals from a deep-sea basin provides evidence of past oil-spilling in a benthic environment in the Red SeaMechanisms of Trichodesmium demise within the New Caledonian lagoon during the VAHINE mesocosm experimentMicrobial co-occurrence patterns in deep Precambrian bedrock fracture fluidsEffect of light on photosynthetic efficiency of sequestered chloroplasts in intertidal benthic foraminifera (Haynesina germanica and Ammonia tepida)Seasonal and size-dependent variations in the phytoplankton growth and microzooplankton grazing in the southern South China Sea under the influence of the East Asian monsoonCharacterization of active and total fungal communities in the atmosphere over the Amazon rainforestResponses of soil microbial communities and enzyme activities to nitrogen and phosphorus additions in Chinese fir plantations of subtropical ChinaRedox regime shifts in microbially mediated biogeochemical cyclesDifferences in microbial community composition between injection and production water samples of water flooding petroleum reservoirsMicrobial colonization in diverse surface soil types in Surtsey and diversity analysis of its subsurface microbiotaDiversity and seasonal dynamics of airborne archaeaMethanotrophic activity and diversity of methanotrophs in volcanic geothermal soils at Pantelleria (Italy)Genotyping an Emiliania huxleyi (prymnesiophyceae) bloom event in the North Sea reveals evidence of asexual reproductionHigh temperature decreases the PIC / POC ratio and increases phosphorus requirements in Coccolithus pelagicus (Haptophyta)Competitive interactions between methane- and ammonia-oxidizing bacteria modulate carbon and nitrogen cycling in paddy soilMicrobial and metabolic profiling reveal strong influence of water table and land-use patterns on classification of degraded tropical peatlandsResponse of benthic foraminifera to ocean acidification in their natural sediment environment: a long-term culturing experimentSummer and winter living coccolithophores in the Yellow Sea and the East China SeaConversion of upland to paddy field specifically alters the community structure of archaeal ammonia oxidizers in an acid soilHigh diversity of nitrogen-fixing bacteria in the upper reaches of the Heihe River, northwestern ChinaDynamics of microbial communities during decomposition of litter from pioneering plants in initial soil ecosystemsInterconnectivity vs. isolation of prokaryotic communities in European deep-sea mud volcanoesMicrobial colonisation of chasmoendolithic habitats in the hyper-arid zone of the Atacama Desert
Jeffrey M. Dick, Miao Yu, and Jingqiang Tan
Biogeosciences, 17, 6145–6162,Short summary
Many natural environments differ in their range of salt concentration (salinity). We developed a metric for the number of water molecules in formation reactions of different proteins and found that it decreases between freshwater and marine systems and also in laboratory experiments with increasing salinity. These results demonstrate a new type of link between geochemical conditions and the chemical composition of microbial communities that can be useful for models of microbial adaptation.
Subhrangshu Mandal, Sabyasachi Bhattacharya, Chayan Roy, Moidu Jameela Rameez, Jagannath Sarkar, Tarunendu Mapder, Svetlana Fernandes, Aditya Peketi, Aninda Mazumdar, and Wriddhiman Ghosh
Biogeosciences, 17, 4611–4631,Short summary
Potential roles of polythionates as key sulfur cycle intermediates are less appreciated, apparently because, in most of the natural environments, they do not accumulate to easily detectable levels. Our exploration of the eastern Arabian Sea sediment horizons revealed microbe-mediated production and redox transformations of tetrathionate to be important modules of the in situ sulfur cycle, even as high biotic and abiotic reactivity of this polythionate keeps it hidden from geochemical detection.
Magdalena J. Mayr, Matthias Zimmermann, Jason Dey, Bernhard Wehrli, and Helmut Bürgmann
Biogeosciences, 17, 4247–4259,
María Cristina Casero, Victoria Meslier, Jocelyne DiRuggiero, Antonio Quesada, Carmen Ascaso, Tomasz Kowaluk, and Jacek Wierzchos
Revised manuscript accepted for BGShort summary
Endolithic microhabitats have been described as the last refuge for life in arid and hyper-arid deserts where life has to deal with harsh environmental conditions, as those in the Atacama Desert. In this work, 3 different endolithic microhabitats occurring in gypcrete rocks of the Atacama Desert are characterized, using both microscopy and molecular techniques, to show if the architecture of each microhabitat has an influence in the microbial communities inhabiting each of them.
Emilio Marañón, France Van Wambeke, Julia Uitz, Emmanuel S. Boss, María Pérez-Lorenzo, Julie Dinasquet, Nils Haëntjens, Céline Dimier, and Vincent Taillandier
Revised manuscript accepted for BGShort summary
The concentration of chlorophyll is commonly used as an indicator of the abundance of photosynthetic plankton (phytoplankton) in lakes and oceans. Our study investigates why a deep chlorophyll maximum, located near the bottom of the upper, illuminated layer, develops in the Mediterranean Sea. We find that the acclimation of cells to low light is the main mechanism involved, and that this deep maximum represents also a maximum in the biomass and carbon fixation activity of phytoplankton.
Massimiliano Molari, Felix Janssen, Tobias R. Vonnahme, Frank Wenzhöfer, and Antje Boetius
Biogeosciences, 17, 3203–3222,Short summary
Industrial-scale mining of deep-sea polymetallic nodules will remove nodules in large areas of the sea floor. We describe community composition of microbes associated with nodules of the Peru Basin. Our results show that nodules provide a unique ecological niche, playing an important role in shaping the diversity of the benthic deep-sea microbiome and potentially in element fluxes. We believe that our findings are highly relevant to expanding our knowledge of the impact associated with mining.
Joost de Vries, Fanny Monteiro, Glen Wheeler, Alex Poulton, Jelena Godrijan, Federica Cerino, Elisa Malinverno, Gerald Langer, and Colin Brownlee
Revised manuscript accepted for BGShort summary
Coccolithophores are important calcifying phytoplankton with an overlooked life cycle. We compile a global dataset of marine coccolithophore abundance to investigate the environmental characteristics of each life cycle phase. We find that both phases contribute to coccolithophore abundance and that their different environmental preference increases coccolithophore habitat. Accounting for the life cycle of coccolithophores is thus crucial for understanding their ecology and biogeochemical impact.
Jun Zhao, Yuanfeng Cai, and Zhongjun Jia
Biogeosciences, 17, 1451–1462,Short summary
We show that soil pH is a key factor in selecting distinct phylotypes of methanotrophs in paddy soils. Type II methanotrophs dominated the methane oxidation in low-pH soils, while type I methanotrophs were more active in high-pH soils. This pH-based niche differentiation of active methanotrophs appeared to be independent of nitrogen fertilization, but the inhibition of type II methanotrophic rate in low-pH soils by the fertilization might aggravate the emission of methane from paddy soils.
Edwin Sien Aun Sia, Zhuoyi Zhu, Jing Zhang, Wee Cheah, Shan Jiang, Faddrine Holt Jang, Aazani Mujahid, Fuh-Kwo Shiah, and Moritz Müller
Biogeosciences, 16, 4243–4260,Short summary
Microbial community composition and diversity in freshwater habitats are much less studied compared to marine and soil communities. This study presents the first assessment of microbial communities of the Rajang River, the longest river in Malaysia, expanding our knowledge of microbial ecology in tropical regions. Areas surrounded by oil palm plantations showed the lowest diversity and other signs of anthropogenic impacts included the presence of CFB groups as well as probable algal blooms.
Julia Mitzscherling, Fabian Horn, Maria Winterfeld, Linda Mahler, Jens Kallmeyer, Pier P. Overduin, Lutz Schirrmeister, Matthias Winkel, Mikhail N. Grigoriev, Dirk Wagner, and Susanne Liebner
Biogeosciences, 16, 3941–3958,Short summary
Permafrost temperatures increased substantially at a global scale, potentially altering microbial assemblages involved in carbon mobilization before permafrost thaws. We used Arctic Shelf submarine permafrost as a natural laboratory to investigate the microbial response to long-term permafrost warming. Our work shows that millennia after permafrost warming by > 10 °C, microbial community composition and population size reflect the paleoenvironment rather than a direct effect through warming.
Blanca Rincón-Tomás, Jan-Peter Duda, Luis Somoza, Francisco Javier González, Dominik Schneider, Teresa Medialdea, Esther Santofimia, Enrique López-Pamo, Pedro Madureira, Michael Hoppert, and Joachim Reitner
Biogeosciences, 16, 1607–1627,Short summary
Cold-water corals were found at active sites in Pompeia Province (Gulf of Cádiz). Since seeped fluids are harmful for the corals, we approached the environmental conditions that allow corals to colonize carbonates while seepage occurs. As a result, we propose that chemosynthetic microorganisms (i.e. sulfide-oxidizing bacteria and AOM-related microorganisms) play an important role in the colonization of the corals at these sites by feeding on the seeped fluids and avoiding coral damage.
Sylwia Śliwińska-Wilczewska, Agata Cieszyńska, Jakub Maculewicz, and Adam Latała
Biogeosciences, 15, 6257–6276,Short summary
The present study describes responses of picocyanobacteria (PCY) physiology to different environmental conditions. The cultures were grown under 64 combinations of temperature, irradiance in a photosynthetically active spectrum (PAR), and salinity. The results show that each strain of Baltic Synechococcus sp. behaves differently in respective environmental scenarios. The study develops the knowledge on bloom-forming PCY and reasons further research on the smallest size fraction of phytoplankton.
Jose Luis Otero-Ferrer, Pedro Cermeño, Antonio Bode, Bieito Fernández-Castro, Josep M. Gasol, Xosé Anxelu G. Morán, Emilio Marañon, Victor Moreira-Coello, Marta M. Varela, Marina Villamaña, and Beatriz Mouriño-Carballido
Biogeosciences, 15, 6199–6220,Short summary
The effect of inorganic nutrients on planktonic assemblages has been traditionally assessed by looking at concentrations rather than fluxes of nutrient supply. However, in near-steady-state systems such as subtropical gyres, nitrate concentrations are kept close to the detection limit due to phytoplankton uptake. Our results, based on direct measurements of nitrate diffusive fluxes, support the key role of nitrate supply in controlling the structure of marine picoplankton communities.
Jörn Wehking, Daniel A. Pickersgill, Robert M. Bowers, David Teschner, Ulrich Pöschl, Janine Fröhlich-Nowoisky, and Viviane R. Després
Biogeosciences, 15, 4205–4214,Short summary
Archaea as a third domain of life play an important role in soils and marine environments. Although archaea have been found in air as a part of the atmospheric bioaerosol, little is known about their atmospheric dynamics due to their low number and challenging analysis. Here we present a DNA-based study of airborne archaea, show seasonal dynamics, and discuss anthropogenic influences on the diversity, composition, and abundances of airborne archaea.
Nicholas Bock, France Van Wambeke, Moïra Dion, and Solange Duhamel
Biogeosciences, 15, 3909–3925,Short summary
We report the distribution of major nano- and pico-plankton groups in the western tropical South Pacific. We found microbial community structure to be typical of highly stratified regions of the open ocean, with significant contributions to total biomass by picophytoeukaryotes, and N2 fixation playing a central role in regulating ecosystem processes. Our results also suggest a reduction in the importance of predation in regulating bacteria populations under nutrient-limited conditions.
Michelle Szyja, Burkhard Büdel, and Claudia Colesie
Biogeosciences, 15, 1919–1931,Short summary
Ongoing human impact transforms habitats into surfaces lacking higher vegetation. Here, biological soil crusts (BSCs) provide ecosystem services like soil creation and carbon uptake. To understand the functioning of these areas, we examined the physiological capability of early successional BSCs. We found features enabling BSCs to cope with varying climatic stresses. BSCs are important carbon fixers independent of the dominating organism. We provide baseline data for modeling carbon fluxes.
Tung-Yi Huang, Bing-Mu Hsu, Wei-Chun Chao, and Cheng-Wei Fan
Biogeosciences, 15, 1815–1826,Short summary
The n-alkane in litterfall and the microbial community in litter layer in different habitats of lowland subtropical rainforest were studied. We revealed that the plant vegetation of forest not only dominated the n-alkane input of habitats but also governed the diversity of microbial community of litter layer. In this study, we found that the habitat which had high n-alkane input induced a shift of relative abundance toward phylum of Actinobacteria and the growth of alkB gene contained bacteria.
Jennifer Caesar, Alexandra Tamm, Nina Ruckteschler, Anna Lena Leifke, and Bettina Weber
Biogeosciences, 15, 1415–1424,Short summary
In our study we analyzed the efficiency of different chlorophyll extraction solvents and investigated the effect of different preparatory steps to determine the optimal extraction method for biological soil crusts. Based on our results we confirm a DMSO-based chlorophyll extraction method without grinding pretreatment and suggest to insert an intermediate shaking step for complete chlorophyll extraction.
Zhiwei Xu, Guirui Yu, Xinyu Zhang, Nianpeng He, Qiufeng Wang, Shengzhong Wang, Xiaofeng Xu, Ruili Wang, and Ning Zhao
Biogeosciences, 15, 1217–1228,Short summary
Forest types with specific soil conditions supported the development of distinct soil microbial communities with variable functions. Our results indicate that the main controls on soil microbes and functions vary across forest ecosystems in different climatic zones. This information will add value to the modeling of microbial processes and will contribute to carbon cycling on a large scale.
Patrick Jung, Laura Briegel-Williams, Anika Simon, Anne Thyssen, and Burkhard Büdel
Biogeosciences, 15, 1149–1160,Short summary
Arctic, Antarctic and alpine biological soil crusts (BSCs) are formed by adhesion of soil particles to cyanobacteria. BSCs influence ecosystems services like soil erodibility and chemical cycles. In cold environments degradation rates are low and BSCs increase soil organic carbon through photosynthesis, whereby these soils are considered as CO2 sinks. This work provides a novel method to visualize BSCs with a focus on cyanobacteria and their contribution to soil organic carbon.
Rongliang Jia, Yun Zhao, Yanhong Gao, Rong Hui, Haotian Yang, Zenru Wang, and Yixuan Li
Biogeosciences, 15, 1161–1172,Short summary
Why can biocrust moss survive and flourish in these habitats when stressed simultaneously by drought and sand burial? A field experiment was conducted to assess the combined effects of the two stressors on Bryum argenteum within biocrust. The two stressors did not exacerbate the single negative effects; their mutually antagonistic effect on the physiological vigor of B. argenteum was found, and it provided an opportunity for it to overcome the two co-occurring stressors in arid sandy ecosystems.
Johanna Maltby, Lea Steinle, Carolin R. Löscher, Hermann W. Bange, Martin A. Fischer, Mark Schmidt, and Tina Treude
Biogeosciences, 15, 137–157,Short summary
The activity and environmental controls of methanogenesis (MG) within the sulfate-reducing zone (0–30 cm below the seafloor) were investigated in organic-rich sediments of the seasonally hypoxic Eckernförde Bay, SW Baltic Sea. MG activity was mostly linked to non-competitive substrates. The major controls identified were organic matter availability, C / N, temperature, and O2 in the water column, revealing higher rates in warm, stratified, hypoxic seasons compared to colder, oxygenated seasons.
Rebecca Elizabeth Cooper, Karin Eusterhues, Carl-Eric Wegner, Kai Uwe Totsche, and Kirsten Küsel
Biogeosciences, 14, 5171–5188,Short summary
In this study we show increasing organic matter (OM) content on ferrihydrite surfaces enhances Fe reduction by the model Fe reducer S. oneidensis and a microbial consortia extracted from peat. Similarities in reduction rates between S. oneidensis and the consortia suggest electron shuttling dominates in OM-rich soils. Community profile analyses showed enrichment of fermenters with pure ferrihydrite, whereas OM–mineral complexes favored enrichment of Fe-reducing Desulfobacteria and Pelosinus sp.
Yu-Te Lin, Zhongjun Jia, Dongmei Wang, and Chih-Yu Chiu
Biogeosciences, 14, 4879–4889,Short summary
We evaluated the bacterial composition and diversity of bamboo soils sampled at different elevations and incubated at different temperatures. Soil respiration was greater at higher elevation and temperature. Soil bacterial structure and diversity showed variable under different incubation times and temperatures. Increases in temperature increased soil respiration and consumption of soil soluble carbon and nitrogen, thus influencing the bacterial diversity and structure at different elevations.
Lichao Liu, Yubing Liu, Peng Zhang, Guang Song, Rong Hui, Zengru Wang, and Jin Wang
Biogeosciences, 14, 3801–3814,Short summary
We studied the development process of bacterial community structure of biological soil crusts (BSCs) along a revegetation chronosequence by Illumina MiSeq sequencing in the Tengger Desert. Our results indicated (1) a shift of bacterial composition related to their function in the crust development process; (2) bacterial diversity and richness consistent with the recovery phase of soil properties; and (3) bacteria as key contributors to the BSC succession process.
Sophie L. Nixon, Jon P. Telling, Jemma L. Wadham, and Charles S. Cockell
Biogeosciences, 14, 1445–1455,Short summary
Despite their permanently cold and dark characteristics, subglacial environments (glacier ice–sediment interface) are known to harbour active microbial communities. However, the role of microbial iron cycling in these environments is poorly understood. Here we show that subglacial sediments harbour active iron-reducing microorganisms, and they appear to be cold-adapted. These results may have important implications for global biogeochemical iron cycling and export to marine ecosystems.
Estelle Couradeau, Daniel Roush, Brandon Scott Guida, and Ferran Garcia-Pichel
Biogeosciences, 14, 311–324,Short summary
Endoliths are a prominent bioerosive component of intertidal marine habitats, traditionally thought to be formed by a few cyanobacteria, algae and fungi. Using molecular techniques, however, we found that endoliths from Mona Island, Puerto Rico, were of high diversity, well beyond that reported in traditional studies. We also found evidence for substrate specialization, in that closely related cyanobacteria seem to have diversified to specialize recurrently to excavate various mineral substrates
Yong Wang, Tie Gang Li, Meng Ying Wang, Qi Liang Lai, Jiang Tao Li, Zhao Ming Gao, Zong Ze Shao, and Pei-Yuan Qian
Biogeosciences, 13, 6405–6417,Short summary
Mild eruption of hydrothermal solutions on deep-sea benthic floor can produce anhydrite crystal layers, where microbes are trapped and preserved for a long period of time. These embedded original inhabitants will be biomarkers for the environment when the hydrothermal eruption occurred. This study discovered a thick anhydrite layer in a deep-sea brine pool in the Red Sea. Oil-degrading bacteria were revealed in the crystals with genomic and microscopic evidence.
Dina Spungin, Ulrike Pfreundt, Hugo Berthelot, Sophie Bonnet, Dina AlRoumi, Frank Natale, Wolfgang R. Hess, Kay D. Bidle, and Ilana Berman-Frank
Biogeosciences, 13, 4187–4203,Short summary
The marine cyanobacterium Trichodesmium spp. forms massive blooms important to carbon and nitrogen cycling in the oceans that often collapse abruptly. We investigated a Trichodesmium bloom in the lagoon waters of New Caledonia to specifically elucidate the cellular processes mediating the bloom decline. We demonstrate physiological, biochemical, and genetic evidence for nutrient and oxidative stress that induced a genetically controlled programmed cell death (PCD) pathway leading to bloom demise.
Lotta Purkamo, Malin Bomberg, Riikka Kietäväinen, Heikki Salavirta, Mari Nyyssönen, Maija Nuppunen-Puputti, Lasse Ahonen, Ilmo Kukkonen, and Merja Itävaara
Biogeosciences, 13, 3091–3108,Short summary
The microbial communities of up to 2.3 km depth of Precambrian crystalline bedrock fractures share features with serpenization-driven microbial communities in alkaline springs and subsurface aquifers. This study suggests that phylotypes belonging to Burkholderiales and Clostridia are possible "keystone microbial species" in Outokumpu deep biosphere. Many of the keystone species belong to the rare biosphere with low abundance but a wide range of carbon substrates and a capacity for H2 oxidation.
Thierry Jauffrais, Bruno Jesus, Edouard Metzger, Jean-Luc Mouget, Frans Jorissen, and Emmanuelle Geslin
Biogeosciences, 13, 2715–2726,Short summary
Some benthic foraminifera can incorporate chloroplasts from microalgae. We investigated chloroplast functionality of two benthic foraminifera (Haynesina germanica & Ammonia tepida) exposed to different light levels. Only H. germanica was capable of using the kleptoplasts, showing net oxygen production. Chloroplast functionality time was longer in darkness (2 weeks) than at high light (1 week). Kleptoplasts are unlikely to be completely functional, thus requiring continuous chloroplast resupply.
L. Zhou, Y. Tan, L. Huang, Z. Hu, and Z. Ke
Biogeosciences, 12, 6809–6822,Short summary
We observed that phytoplankton biomass and growth rate (μ), microzooplankton grazing rate (m), and coupling (correlation) between the μ and m significantly varied between the summer and winter, and microzooplankton selectively grazed more on the larger-sized phytoplankton, and a low grazing impact on phytoplankton (m/μ < 50%) in the SSCS. The salient seasonal variations in μ and m, and their coupling were closely related to environmental variables under the influence of the East Asian monsoon.
A. M. Womack, P. E. Artaxo, F. Y. Ishida, R. C. Mueller, S. R. Saleska, K. T. Wiedemann, B. J. M. Bohannan, and J. L. Green
Biogeosciences, 12, 6337–6349,Short summary
Fungi in the atmosphere can affect precipitation by nucleating the formation of clouds and ice. This process is important over the Amazon rainforest where precipitation is limited by the types and amount of airborne particles. We found that the total and metabolically active fungi communities were dominated by different taxonomic groups, and the active community unexpectedly contained many lichen fungi, which are effective at nucleating ice.
W. Y. Dong, X. Y. Zhang, X. Y. Liu, X. L. Fu, F. S. Chen, H. M. Wang, X. M. Sun, and X. F. Wen
Biogeosciences, 12, 5537–5546,Short summary
We examined how N and P addition influenced soil microbial community composition and enzyme activities in subtropical China. The results showed that C and N cycling enzymes were more sensitive to nutrient additions than P cycling enzymes and Gram-positive bacteria were most closely related to soil nutrient cycling enzymes. Combined additions of N and P fertilizer are recommended to promote soil fertility and microbial activity in this kind of plantation.
T. Bush, I. B. Butler, A. Free, and R. J. Allen
Biogeosciences, 12, 3713–3724,Short summary
Despite their global importance, redox reactions mediated by microorganisms are often crudely represented in biogeochemical models. We show that including the dynamics of microbial growth in such a model can cause sudden shifts between redox states in response to an environmental change. We identify the conditions required for these redox regime shifts, and predict that they are likely in the modern day sulfur and nitrogen cycles, and potentially the iron cycle in the ancient ocean.
P. K. Gao, G. Q. Li, H. M. Tian, Y. S. Wang, H. W. Sun, and T. Ma
Biogeosciences, 12, 3403–3414,Short summary
Microbial communities in injected water are expected to have a significant influence on those of reservoir strata in long-term water-flooding petroleum reservoirs. We thereby investigated the similarities and differences in microbial communities in water samples collected from the wellhead and downhole of injection wells, and from production wells in a homogeneous reservoir and a heterogeneous reservoir using high-throughput sequencing.
V. Marteinsson, A. Klonowski, E. Reynisson, P. Vannier, B. D. Sigurdsson, and M. Ólafsson
Biogeosciences, 12, 1191–1203,Short summary
Colonization of life on Surtsey has been observed systematically since the formation of the island. Microbial colonization and the influence of associate vegetation and birds on viable counts of environmental bacteria at the surface of the Surtsey was explored for the first time in diverse surface soils. Also, hot subsurface samples deep in the centre of this volcanic island were collected. Both uncultivated bacteria and archaea were found in the subsurface samples collected below 145 m.
J. Fröhlich-Nowoisky, C. Ruzene Nespoli, D. A. Pickersgill, P. E. Galand, I. Müller-Germann, T. Nunes, J. Gomes Cardoso, S. M. Almeida, C. Pio, M. O. Andreae, R. Conrad, U. Pöschl, and V. R. Després
Biogeosciences, 11, 6067–6079,Short summary
We have investigated the presence of archaea as well as their amoA gene diversity in aerosol particles collected over 1 year in central Europe and found that, within the 16S and amoA gene, Thaumarchaeota prevail and experience a diversity peak in fall, while only few Euryarchaeota were detected primarily in spring. We also compared the results with airborne archaea from Cape Verde and observe that the proportions of Euryarchaeota seem to be enhanced in coastal air compared to continental air.
A. L. Gagliano, W. D'Alessandro, M. Tagliavia, F. Parello, and P. Quatrini
Biogeosciences, 11, 5865–5875,
S. A. Krueger-Hadfield, C. Balestreri, J. Schroeder, A. Highfield, P. Helaouët, J. Allum, R. Moate, K. T. Lohbeck, P. I. Miller, U. Riebesell, T. B. H. Reusch, R. E. M. Rickaby, J. Young, G. Hallegraeff, C. Brownlee, and D. C. Schroeder
Biogeosciences, 11, 5215–5234,
A. C. Gerecht, L. Šupraha, B. Edvardsen, I. Probert, and J. Henderiks
Biogeosciences, 11, 3531–3545,
Y. Zheng, R. Huang, B. Z. Wang, P. L. E. Bodelier, and Z. J. Jia
Biogeosciences, 11, 3353–3368,
S. Mishra, W. A. Lee, A. Hooijer, S. Reuben, I. M. Sudiana, A. Idris, and S. Swarup
Biogeosciences, 11, 1727–1741,
K. Haynert, J. Schönfeld, R. Schiebel, B. Wilson, and J. Thomsen
Biogeosciences, 11, 1581–1597,
J. Sun, X. Y. Gu, Y. Y. Feng, S. F. Jin, W. S. Jiang, H. Y. Jin, and J. F. Chen
Biogeosciences, 11, 779–806,
M. S. Alam, G. D. Ren, L. Lu, Y. Zheng, X. H. Peng, and Z. J. Jia
Biogeosciences, 10, 5739–5753,
X. S. Tai, W. L. Mao, G. X. Liu, T. Chen, W. Zhang, X. K. Wu, H. Z. Long, B. G. Zhang, and Y. Zhang
Biogeosciences, 10, 5589–5600,
J. Esperschütz, C. Zimmermann, A. Dümig, G. Welzl, F. Buegger, M. Elmer, J. C. Munch, and M. Schloter
Biogeosciences, 10, 5115–5124,
M. G. Pachiadaki and K. A. Kormas
Biogeosciences, 10, 2821–2831,
J. DiRuggiero, J. Wierzchos, C. K. Robinson, T. Souterre, J. Ravel, O. Artieda, V. Souza-Egipsy, and C. Ascaso
Biogeosciences, 10, 2439–2450,
Ambožová, K. and Láska, K.: Air temperature variability in the vertical profile over the coastal area of Petuniabukta, central Spitsbergen, Pol. Polar Res., 38, 41–60, 2017.
Bååth, E. and Anderson, T.-H.: Comparison of soil fungal/bacterial ratios in a pH gradient using physiological and PLFA based techniques, Soil Biol. Biochem., 35, 955–63, 2003.
Bardgett, R. D., Bowman, W. D., Kaufmann, R., and Schmidt, S. K.: A temporal approach to linking aboveground and belowground ecology, Trends Ecol. Evol., 20, 634–641, 2005.
Bastida, F., Jehmlich, N., Ondoño, S., von Bergen, M., García, C., and Moreno, J. L.: Characterization of the microbial community in biological soil crusts dominated by Fulgensia desertorum (Tomin) Poelt and Squamarina cartilaginea (With.) P. James and in the underlying soil, Soil Biol. Biochem., 76, 70–79, 2014.
Bekku, Y. S., Kume, A., Masuzawa, T., Kanda, H., Nakatsubo, T., and Koizumi, H.: Soil respiration in a high arctic glacier foreland in Ny-Ålesund, Svalbard, Polar Bioscience, 17, 36–46, 2004.
Belnap, J. and Lange, O. L.: Biological Soil Crusts: Structure, Function, and Management, Springer Berlin Heidelberg, 2003.
Björk, R. G., Björkman, M. P., Andersson M. X., and Klemedtsson L.: Temporal variation in soil microbial communities in Alpine tundra, Soil Biol. Biochem., 40, 266–268, 2008.
Blaud, A., Lerch, T. Z., Phoenix, G. K., and Osborn M. A.: Arctic soil microbial diversity in a changing world, Res. Microbiol., 166, 796–813, 2015.
Bossio, D. A. and Scow, K. M.: Impacts of carbon and flooding on soil microbial communities: phospholipid fatty acid profiles and substrate utilization patterns, Microb. Ecol., 35, 265–278, 1998.
Clein, J. S. and Schimel, J. P.: Reduction in microbial activity of litter due to drying and rewetting events, Soil Biol. Biochem., 26, 403–406, 1994.
Collins, M., Knutti, R., Arblaster, J., Dufresne, J. L., Fichefet, T., Friedlingstein, P., Gao, X., Gutowski, W. J., Johns, T., Krinner, G., Shongwe, M., Tebaldi, C., Weaver, A. J., and Wehner, M.: Long-term climate change. Projections, commitments and irreversibility, in: Climate Change 2013, The physical science basis, Contribution of working group I to the fifth assessment report of the intergovernmental panel on climate change, edited by: Stocker, T. F., Qin, D., Plattner, G. K., Tignor, M. M. B., Allen, S. K., Boschung, J., Nauels, A., Xia, Y., Bex, V., and Midgley, P. M., Cambridge University Press, Cambridge, 1029–1136, ISBN: 9781107057991, 2013.
Chu, H., Fierer, N., Lauber, Ch. L., Caporaso, J. G., Knight, R., and Grogan, P.: Soil bacterial diversity in the Arctic is not fundamentally different from that found in other biomes, Environ. Microb., 12, 2998–3006, 2010.
Dallmann, W. K., Piepjohn, K., and Blomeier, D.: Geological map of Billefjorden, Central Spitsbergen, Svalbard, Temakart Nr. 36, Norsk Polarinstitutt, 2004.
de Mesquita, C. P. B., Knelman, J. E., King, A. J., Farrer, E. C., Porazinska, D. L., Schmidt, S. K., and Suding, K. N.: Plant colonization of moss-dominated soils in the alpine: Microbial and biogeochemical implications, Soil Biol. Biochem., 111, 135–142, 2017.
Djukic, I., Zehetner, F., Mentler, A., and Gerzabek, M. H.: Microbial community composition and activity in different Alpine vegetation zones, Soil Biol. Biochem., 42, 155–161, 2010.
Djukic, I., Zehetner, F., Watzinger, A., Horacek, M., and Gerzabek, M. H.: In situ carbon turnover dynamics and the role of soil microorganisms therein: a climate warming study in an Alpine ecosystem, FEMS Microbiol. Ecol., 83, 112–124, 2013.
Drotz, S. H., Sparrman, T., Nilsson, M. B., Schleucher, J., and Öquist, M. G.: Both catabolic and anabolic heterotrophic microbial activity proceed in frozen soils, PNAS, 107, 21046–21051, 2010.
Ferrari, B. C., Bissett, A., Snape, I., van Dorst, J., Palmer, A. S., Ji, M., Siciliano, S. D., Stark, J. S., Winsley, T., and Brown, M. V.: Geological connectivity drives microbial community structure and connectivity in polar, terrestrial ecosystems, Environ. Microb., 18, 1834–1849, 2016.
Fierer, N., McCain C. M., Meir, P., Zimmermann, M., Rapp, J. M., Silman, M. R., and Knight, R.: Microbes do not follow the elevational diversity patterns of plants and animals, Ecology, 92, 797–804, 2011.
Førland, E. J., Benestad, R., Hanssen-Bauer, I., Haugen, J. E., and Skaugen, T.: Temperature and Precipitation Development at Svalbard 1900–2100, Adv. Meterol., 2011, 1–14, https://doi.org/10.1155/2011/893790, 2011.
Frostegård, A. and Bååth, E.: The use of phospholipid fatty acid analysis to estimate bacterial and fungal biomass in soil, Biol. Fert. Soils, 22, 59–65, 1996.
Frostegård, Å., Bååth, E., and Tunlid, A.: Shifts in the structure of soil microbial communities in limed forests as revealed by phospholipid fatty acid analysis, Soil Biol. Biochem., 25, 723–730, 1993.
Gavazov, K. S.: Dynamics of alpine plant litter decomposition in a changing climate, Plant Soil, 337, 19–32, 2010.
Hardison, A. K., Canuel, E. A., Anderson, I. C., Tobias, C. R., Veuger, B., and Waters, M. N.: Microphytobenthos and benthic macroalgae determine sediment organic matter composition in shallow photic sediments, Biogeosciences, 10, 5571–5588, https://doi.org/10.5194/bg-10-5571-2013, 2013.
Harris, D., Horwáth, W. R., and van Kessel, Ch.: Acid fumigation of soils to remove carbonates prior to total organic carbon or carbon-13 isotopic analysis, Soil Sci. Soc. Am. J., 65, 1853–1856, 2001.
Holm, S.: A simple sequentially rejective multiple test procedure, Scand. J. Stat., 6, 65–70, 1979.
Hassink, J.: Effects of soil texture and structure on carbon and nitrogen mineralization in grassland soils, Biol. Fertil. Soils, 14, 126–134, 1992.
Högberg, M. N., Högberg, P., and Myrold, D. D.: Is microbial community composition in boreal forest soils determined by pH, C-to-N ratio, the trees, or all three, Oecologia, 150, 590–601, 2007.
Hu, L., Xiang, Z., Wang, G., Rafique, R., Liu W., and Wang, C.: Changes in soil physicochemical and microbial properties along elevation gradients in two forest soils, Scand. J. Forest Res., 31, 242–253, 2016.
Jones, A, Stolbovoy, V., Tarnocai, C., Broll, G., Spaargaren, O., and Montanarella, L. (Eds.): Soil Atlas of the Northern Circumpolar Region, European Commission, Publications Office of the European Union, Luxembourg, 144 pp., 2010.
Khotimchenko, S. V., Vaskovsky, V. E., and Titlyanova, T. V.: Fatty acids of marine algae from the pacific coast of North California, Bot. Mar., 45, 17–22, 2002.
Kleidon, A. and Mooney, H. A.: A global distribution of biodiversity inferred from climatic constraints: results from a process-based modelling study, Glob. Change Biol., 6, 507–523, 2000.
Klimeš, L. and Doležal, J.: An experimental assessment of the upper elevational limit of flowering plants in the western Himalayas, Ecography, 33, 590–596, 2010.
Körner, Ch.: The use of “altitude” in ecological research, Trend. Ecol. Evol., 22, 569–574, 2007.
Kotas, P., Šantrůčková, H., Eslter, J., and Kaštovská, E.: Underlying data to “Soil microbial biomass, activity and community composition along altitudinal gradients in the High Arctic (Billefjorden, Svalbard)”, available at: https://www.researchgate.net/publication/324030468_Underlying_dataset_-_Biogeosciences_article, last access: 27 March 2018.
Kroppenstedt, R. M.: Fatty acid and menaquinone analysis of actinomycetes and related organisms, in: Chemical methods in bacterial systematics, edited by: Goodfellow, M. and Minikin, D. E., Academic Press, London, 173–194, 1985.
Larsen, K. S., Jonasson, S., and Michelsešn, A.: Repeated freeze-thaw cycles and their effects on biological processes in two arctic ecosystem types, Appl. Soil Ecol., 21, 187–195, 2002.
Lazzaro, A., Hilfiker, D., and Zeyer, J.: Structure of microbial communities in alpine soils: seasonal and elevational effects, Front. Microbiol., 6, 1–13, https://doi.org/10.3389/fmicb.2015.01330, 2015.
Ley, R. E., Williams, M. W., and Schmidt, S. K.: Microbial population dynamics in an extreme environment: controlling factors in talus soils at 3750m in the Colorado Rocky Mountains, Biogeochemistry, 68, 313–335, 2004.
Lipson, D. A.: Relationships between temperature responses and bacterial community structure along seasonal and altitudinal gradients, FEMS Microbiol. Ecol., 59, 418–427, 2007.
Lipson, D. A., Schmidt, S. K., and Monson, R. K.: Links between microbial population dynamics and nitrogen availability in an alpine ecosystem, Ecology, 80, 1623–1631, 1999.
Lipson, D. A., Schmidt, S. K., and Monson, R. K.: Carbon availability and temperature control the post-snowmelt decline in alpine soil microbial biomass, Soil Biol. Biochem., 32, 441–448, 2000.
Lipson, D. A., Schadt, C. W., and Schmidt, S. K.: Changes in soil microbial community structure and function in an alpine dry meadow following spring snow melt, Microb. Ecol., 43, 307–314, 2002.
Lovelland P. J. and Whalley W. R.: Particle size analysis, in: Soil and Environmental Analysis Physical Method, edited by: Smith, K. A. and Mullins, C. E., Dekker Press, New York, USA, 2001.
Löffler, U. C. M., Cypionka, H., and Löffler, J.: Soil microbial activity along an arctic-alpine altitudinal gradient from a seasonal perspective, Eur. J. Soil Sci., 59, 842–854, 2008.
Ma, X., Chen, T., Zhang, G., and Wang R.: Microbial community structure along an altitude gradient in three different localities, Folia Microbiol., 49, 105–111, 2004.
Männistö, M., Tiirola, M., and Häggblom, M. M.: Bacterial communities in Arctic fjelds of Finnish Lapland are stable but highly pH-dependent, FEMS Microbiol. Ecol., 59, 452–465, 2007.
Margesin, R., Gander, S., Zacke, G., Gounot, A. M., and Schinner, F.: Hydrocarbon degradation and enzyme activities of cold-adapted bacteria and yeasts, Extremophiles, 7, 451–458, 2003.
Margesin, R., Jud, M., Tscherko, D., and Schinner, F.: Microbial communities and activities in alpine and subalpine soils, FEMS Microbiol. Ecol., 67, 208–218, 2009.
Meng, H., Li, K., Nie, M.,Wan, J.-R., Quan, Z.-X., Fang, C.-M., Chen, J.-K., Gu, J.-D., and Li, B.: Responses of bacterial and fungal communities to an elevation gradient in a subtropical montane forest of China, Appl. Microbiol. Biot., 97, 2219–2230, 2013.
Montgomery, H. J., Monreal, C. M., Young, J. C., and Seifert, K. A.: 2000. Determination of soil fungal biomass from soil ergosterol analyses, Soil Biol. Biochem., 32, 1207–1217, 2000.
Nemergut, D. R., Costello, E. K., Meyer, A. F., Pescador, M. Y., Weintraub, M. N., and Schmidt, S. K.: Structure and function of alpine and arctic soil microbial communities, Res. Microbiol., 156, 775–784, 2005.
Niklińska, M. and Klimek, B.: Effect of temperature on the respiration rate of forest soil organic layer along an elevation gradient in the Polish Carpathians, Biol. Fert. Soils, 43, 511–518, 2007.
Nikrad, M. P., Kerkhof, L. J., and Häggblom, M. M.: The subzero microbiome: microbial activity in frozen and thawing soils, FEMS Microbiol. Ecol., 92, 1–16, https://doi.org/10.1093/femsec/fiw08, 2016.
Oberbauer, S. F., Tweedie, C. E., Welker, J. M., Fahnestock, J. T., Henry, G. H. R., Webber, P. J., Hollister, R. D., Walker, M. D., Kuchy, A., Elmore, E., and Starr, G.: Tundra CO2 fluxes in response to experimental warming across latitudinal and moisture gradients, Ecol. Monogr., 77, 221–238, 2007.
Petersen, S. O. and Klug, M. J.: Effects of sieving, storage, and incubation temperature on the phospholipid fatty acid profile of a soil microbial community, Appl. Environ. Microbiol., 60, 2421–2430, 1994.
Prach, K., Klimešová, J., Košnar, J., Redčenko O., and Hais M.: Variability of contemporary vegetation around Petuniabukta, central Spitsbergen, Pol. Polar Res., 33, 383–394, 2012.
Pushkareva, E., Kvíderová, J., Šimek, M., and Elster, J.: Nitrogen fixation and diurnal changes of photosynthetic activity in Arctic soil crusts at different development stage, Europ. J. Soil Biol., 79, 21–30, 2017.
Richter, D. D., Johnson, D. W., and Dai, K. H.: Cation exchange reactions in acid forested soils: effects of atmospheric pollutant deposition, in: Atmospheric Deposition and Nutrient Cycling in Forest Ecosystems, edited by: Johnson, D. W. and Lindberg, S. E., Spring-Verlag, New York, 339–358, 1992.
Rontani, J.-F., Charriere, B., Petit, M., Vaultier, F., Heipieper, H. J., Link, H., Chaillou, G., and Sempéré, R.: Degradation state of organic matter in surface sediments from the Southern Beaufort Sea: a lipid approach, Biogeosciences, 9, 3513–3530, https://doi.org/10.5194/bg-9-3513-2012, 2012.
Rousk, J., Brookes, P. C., and Bååth, E.: Contrasting soil pH effects on fungal and bacterial growth suggest functional redundancy in carbon mineralization, Appl. Environ. Microb., 75, 1589–1596, 2009.
Schimel, J. P. and Clein, J. S.: Microbial response to freeze-thaw cycles in tundra and taiga soils, Soil Biol. Biochem., 28, 1061–1066, 1996.
Schinner, F.: Soil microbial activities and litter decomposition related to altitude, Plant Soil, 65, 87–94, 1982.
Schinner, F. and Gstraunthaler, G.: Adaptation of microbial activities to the environmental conditions in alpine soils, Oecologia, 50, 113–116, 1981.
Schütte, U. M. E., Abdo, Z., Foster, J., Ravel, J., Bunge, J., Solheim, B., and Forney, L. J.: Bacterial diversity in a glacier foreland of the high Arctic, Mol. Ecol., 19, 54–56, 2010.
Shen, C., Xiong, J., Zhang, H., Feng, Y., Lin, X., Li, X., Liang, W., and Chu, H.: Soil pH drives the spatial distribution of bacterial communities along elevation on Changbai Mountain, Soil Biol. Biochem., 57, 204–211, 2013.
Siles, J. S. and Margesin, R.: Abundance and diversity of bacterial, archaeal, and fungal communities along an altitudinal gradient in alpine forest soils: What are the driving factors, Soil Microbiol., 72, 207–220, 2016.
Singh, D., Takahashi, K., Kim, M., Chun, J., and Adams, J. M.: A hump-backed trend in bacterial diversity with elevation on Mount Fuji, Japan, Microb. Ecol. 63, 429–437, 2012.
Sinsabaugh, R. L., Antibus, R. K., Jackson, C. R., Karpanty, S., Robinson, M., Liptak, M., and Franchini, P.: A β-sitosterol assay for fine-root mass in soil, Soil Biol. Biochem., 29, 39–44, 1997.
Šmilauer, P. and Lepš, J.: Multivariate analysis of ecological data using CANOCO5, Cambridge University Press, Cambridge, 2014.
Sparling, G. P. and West, A. W.: A comparison of gas chromatography and differential respirometer methods to measure soil respiration and to estimate the soil microbial biomass, Pedobiologia, 34, 103–112, 1990.
Stenberg, B., Johanssson, M., Pell, M., Sjödahl-Svensson, K., Stenström, J., and Torstensson, L.: Microbial biomass and activities in soil as affected by frozen and cold storage, Soil Biol. Biochem., 30, 393–402, 1998.
Strickland, M. S. and Rousk, J.: Considering fungal:bacterial dominance in soils – Methods, controls, and ecosystem implications, Soil Biol. Biochem., 42, 1385–395, 2010.
Ter Braak, C. J. F. and Šmilauer, P.: Canoco reference manual and user's guide: software for ordination, version 5.0. Microcomputer Power, Ithaca, USA, 496 pp., 2012.
Thomson, B. C., Ostle, N. J., McNamara, N. P., Whiteley, A. S. and Griffiths, R. I.: Effects of sieving, drying and rewetting upon soil bacterial community structure and respiration rates, J. Microbiol. Meth., 83, 69–73, 2010.
Trevors, J. T., Kevan, P. G., and Tam, L.: Microbial diversity across a Canadian sub-Arctic, isostatically rebounding, soil transect, Polar Science, 4, 81–91, 2010.
Tytgat, B., Verleyen, E., Sweetlove, M., D'hondt, S., Clercx, P., Van Ranst, E., Peeters, K., Roberts, S., Namsaraev, Z., Wilmotte, A., Vyverman, W., and Willems, A.: Bacterial community composition in relation to bedrock type and macrobiota in soils from the Sør Rondane Mountains, East Antarctica, FEMS Microbiol. Ecol., 92, 1–13, https://doi.org/10.1093/femsec/fiw126, 2016.
Uhlířová, E., Šantrůčková, H., and Davidov, S. P.: Quality and potential biodegradability of soil organic matter preserved in permafrost of Siberian tussock tundra, Soil Biol. Biochem., 39, 1978–1989, 2007.
van Breemen, N., Driscoll, C. T., and Mulder, J.: Acidic deposition and internal proton sources in acidification of soils and waters, Nature, 307, 599–604, 1984.
van de Heijden, M. G. A., Bardgett, R. D., and van Straalen, N. M.: The unseen majority: soil microbes as drivers of plant diversity and productivity in terrestrial ecosystems, Ecol. Lett., 11, 296–310, 2008.
Van Horn, D. J., Van Horn, M. L., Barrett, J. E., Gooseff, M. N., Altrichter, A. E., Geyer, K. M., Zeglin, L. H., and Takacs-Vesbach, K.: Factors controlling soil microbial biomass and bacterial diversity and community composition in a cold desert ecosystem: Role of geographic scale, PLoS One, 8, 1–12, https://doi.org/10.1371/journal.pone.0066103, 2013.
Väre, H., Vestberg, M., and Ohtonen, R.: Shifts in mycorrhiza and microbial activity along an oroarctic altitudinal gradient in northern Fennoscandia, Arctic Alpine Res., 29, 93–104, 1997.
Volkman, J. K.: A review of sterol markers for marine and terrigenous organic matter, Org. Geochem., 9, 83–99, 1986.
Volkman, J. K.: Sterols in microorganisms, Appl. Microbiol. Biot., 60, 495–506, 2003.
Vuorinen, K. E. M., Oksanen, L., Oksanen, T., Pyykönen, A., Olofsson, J., and Virtanen, R.: Open tundra persist, but arctic features decline–Vegetation changes in the warming Fennoscandian tundra, Global Change Biol., 23, 3794–3807, 2017.
Webb, M.: The influence of magnesium on cell division. 2. The effect of magnesium on the growth and cell division of various bacterial species in complex media, Microbiology, 3, 410–417, 1949a.
Wheeler, K. A., Hurdman, B. F., and Pitt, J. I.: Influence of pH on the growth of some toxigenic species of Aspergillus, Penicillium and Fusarium, Int. J. Food Microbiol., 12, 141–150, 1991.
Xu, M., Li, X., Cai, X., Gai, J., Li, X., Christie, P., and Zhang, J.: Soil microbial community structure and activity along a montane elevational gradient on the Tibetan Plateau, Eur. J. Soil Biol., 64, 6–14, 2014.
Yoshitake, S., Uchida, M., Koizumi, H., and Nakatsubo, T.: Carbon and nitrogen limitation of soil microbial respiration in a High Arctic successional glacier foreland near Ny-Ålesund, Svalbard, Pol. Res., 26, 22–30, 2007.
Yu, Q., Epstein, H., Engstrom, R., and Walker, D.: Circumpolar arctic tundra biomass and productivity dynamics in response to projected climate change and herbivory, Glob. Change Biol., 23, 3895–3907, 2017.
Zbíral, J. and Němec, P.: Data presentation, interpretation, and communication: Integrating of Mehlich 3 extractant into the Czech soil testing scheme, Commun. Soil Sci. Plan., 31, 2171–2182, 2000.
The soil microbial properties were investigated along altitudinal gradients in the Arctic. Systematic altitudinal shift in MCS resulting in high F / B ratios at the most elevated sites was observed. The changes in composition, size and activity of microbial communities were mainly controlled through the effect of vegetation on edaphic properties and by bedrock chemistry. The upward migration of vegetation due to global warming will likely diminish the spatial variability in microbial properties.
The soil microbial properties were investigated along altitudinal gradients in the Arctic....