Articles | Volume 17, issue 20
https://doi.org/10.5194/bg-17-4961-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-17-4961-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Oct 2020
Research article |
| 17 Oct 2020
| 17 Oct 2020
Protists and collembolans alter microbial community composition, C dynamics and soil aggregation in simplified consumer–prey systems
J. F. Blumenbach Institute of Zoology and Anthropology, University of
Göttingen, 37073 Göttingen, Germany
Matthias C. Rillig
Institute of Biology, Freie Universität Berlin, 14195 Berlin,
Germany
Andrea Carminati
Chair of Soil Physics, University of Bayreuth, 95440 Bayreuth, Germany
Alexandre Jousset
Ecology and Biodiversity, Institute of Environmental Biology, Utrecht
University, 3584CH Utrecht, the Netherlands
Stefan Scheu
J. F. Blumenbach Institute of Zoology and Anthropology, University of
Göttingen, 37073 Göttingen, Germany
Centre of Biodiversity and Sustainable Land Use, University of
Göttingen, 37077 Göttingen, Germany
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Nedal Aqel, Lea Reusser, Stephan Margreth, Andrea Carminati, and Peter Lehmann
Geosci. Model Dev., 17, 6949–6966, https://doi.org/10.5194/gmd-17-6949-2024, https://doi.org/10.5194/gmd-17-6949-2024, 2024
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The soil water potential (SWP) determines various soil water processes. Since remote sensing techniques cannot measure it directly, it is often deduced from volumetric water content (VWC) information. However, under dynamic field conditions, the relationship between SWP and VWC is highly ambiguous due to different factors that cannot be modeled with the classical approach. Applying a deep neural network with an autoencoder enables the prediction of the dynamic SWP.
Juan F. Dueñas, Edda Kunze, Huiying Li, and Matthias C. Rillig
EGUsphere, https://doi.org/10.5194/egusphere-2024-2566, https://doi.org/10.5194/egusphere-2024-2566, 2024
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We explored the possibility of adding mixtures composed of minimum dosages of several popular amendment types to soil. Adding mixtures of 3 to 5 amendment types substantially increased the capacity of soil to retain water, reduced soil erosion and increased microorganism abundance, while buffering soil from drastic changes in pH.
Rosolino Ingraffia, Gaetano Amato, Vincenzo Bagarello, Francesco G. Carollo, Dario Giambalvo, Massimo Iovino, Anika Lehmann, Matthias C. Rillig, and Alfonso S. Frenda
SOIL, 8, 421–435, https://doi.org/10.5194/soil-8-421-2022, https://doi.org/10.5194/soil-8-421-2022, 2022
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The presence of microplastics in soil environments has received increased attention, but little research exists on the effects on different soil types and soil water erosion. We performed two experiments on the effects of polyester microplastic fiber on soil properties, soil aggregation, and soil erosion in three agricultural soils. Results showed that polyester microplastic fibers affect the formation of new aggregates and soil erosion and that such effects are strongly dependent on soil type.
M. Bechmann, C. Schneider, A. Carminati, D. Vetterlein, S. Attinger, and A. Hildebrandt
Hydrol. Earth Syst. Sci., 18, 4189–4206, https://doi.org/10.5194/hess-18-4189-2014, https://doi.org/10.5194/hess-18-4189-2014, 2014
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Unique ocean circulation pathways reshape the Indian Ocean oxygen minimum zone with warming
Contribution of the open ocean to the nutrient and phytoplankton inventory in a semi-enclosed coastal sea
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Differential feeding habits of the shallow-water hydrothermal vent crab Xenograpsus testudinatus correlate with their resident vent types at a scale of meters
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Assimilation of multiple datasets results in large differences in regional- to global-scale NEE and GPP budgets simulated by a terrestrial biosphere model
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Phytoplankton reaction to an intense storm in the north-western Mediterranean Sea
Lagrangian and Eulerian time and length scales of mesoscale ocean chlorophyll from Bio-Argo floats and satellites
Reply to Lars Olof Björn's comment on “Fundamental molecules of life are pigments which arose and co-evolved as a response to the thermodynamic imperative of dissipating the prevailing solar spectrum” by Michaelian and Simeonov (2015)
Modelling submerged biofouled microplastics and their vertical trajectories
A Bayesian sequential updating approach to predict phenology of silage maize
Using an oceanographic model to investigate the mystery of the missing puerulus
Climate pathways behind phytoplankton-induced atmospheric warming
Impact of moderately energetic fine-scale dynamics on the phytoplankton community structure in the western Mediterranean Sea
Seasonal ecosystem vulnerability to climatic anomalies in the Mediterranean
Grazing behavior and winter phytoplankton accumulation
Episodic subduction patches in the western North Pacific identified from BGC-Argo float data
Do Loop Current eddies stimulate productivity in the Gulf of Mexico?
Quasi-tropical cyclone caused anomalous autumn coccolithophore bloom in the Black Sea
Divergent climate feedbacks on winter wheat growing and dormancy periods as affected by sowing date in the North China Plain
Microclimatic comparison of lichen heaths and shrubs: shrubification generates atmospheric heating but subsurface cooling during the growing season
Fire and vegetation dynamics in northwest Siberia during the last 60 years based on high-resolution remote sensing
Evidence of eddy-related deep-ocean current variability in the northeast tropical Pacific Ocean induced by remote gap winds
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Interactive impacts of meteorological and hydrological conditions on the physical and biogeochemical structure of a coastal system
Abundance and viability of particle-attached and free-floating bacteria in dusty and nondusty air
Linking tundra vegetation, snow, soil temperature, and permafrost
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Dissolved inorganic nitrogen and particulate organic nitrogen budget in the Yucatán shelf: driving mechanisms through a physical–biogeochemical coupled model
Basal thermal regime affects the biogeochemistry of subglacial systems
Influence of oceanic conditions in the energy transfer efficiency estimation of a micronekton model
Modulation of the North Atlantic deoxygenation by the slowdown of the nutrient stream
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Remote and local drivers of oxygen and nitrate variability in the shallow oxygen minimum zone off Mauritania in June 2014
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Robin B. Zweigel, Avirmed Dashtseren, Khurelbaatar Temuujin, Anarmaa Sharkhuu, Clare Webster, Hanna Lee, and Sebastian Westermann
EGUsphere, https://doi.org/10.5194/egusphere-2024-1790, https://doi.org/10.5194/egusphere-2024-1790, 2024
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Intense grazing at grassland sites removes vegetation, reduces the snow cover, and inhibits litter layers from forming. Grazed sites generally have a larger annual ground surface temperature amplitude than ungrazed sites, but the net effect depends on effects in the transitional seasons. Our results also suggest that seasonal use of pastures can reduce ground temperatures, which can be a strategy to protect currently degrading grassland permafrost.
Raquel González-Armas, Jordi Vilà-Guerau de Arellano, Mary Rose Mangan, Oscar Hartogensis, and Hugo de Boer
Biogeosciences, 21, 2425–2445, https://doi.org/10.5194/bg-21-2425-2024, https://doi.org/10.5194/bg-21-2425-2024, 2024
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This paper investigates the water and CO2 exchange for an alfalfa field with observations and a model with spatial scales ranging from the stomata to the atmospheric boundary layer. To relate the environmental factors to the leaf gas exchange, we developed three equations that quantify how many of the temporal changes of the leaf gas exchange occur due to changes in the environmental variables. The novelty of the research resides in the capacity to dissect the dynamics of the leaf gas exchange.
Jialing Yao, Zhi Chen, Jianzhong Ge, and Wenyan Zhang
Biogeosciences Discuss., https://doi.org/10.5194/bg-2024-2, https://doi.org/10.5194/bg-2024-2, 2024
Revised manuscript accepted for BG
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The transformation of dissolved organic carbon (DOC) in estuaries is vital for costal carbon cycling. We studied source-to-sink pathways of DOC in the Changjiang Estuary using a physics-biogeochemistry model. Results showed a transition from sink to source of DOC in the plume area during summer, with a transition from terrestrial-dominant to marine-dominant. Terrigenous and marine DOC exports account for about 31 % and 69 %, respectively.
Sam Ditkovsky, Laure Resplandy, and Julius Busecke
Biogeosciences, 20, 4711–4736, https://doi.org/10.5194/bg-20-4711-2023, https://doi.org/10.5194/bg-20-4711-2023, 2023
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The global ocean is losing oxygen due to warming. The Indian Ocean, however, is gaining oxygen in large parts of the basin, and its naturally occurring oxygen minimum zone is not expanding. This rather unexpected response is explained by the unique ocean circulation of the Indian Ocean, which is bounded by a continent to the north but connected to the Pacific Ocean by the Indonesian Throughflow.
Qian Leng, Xinyu Guo, Junying Zhu, and Akihiko Morimoto
Biogeosciences, 20, 4323–4338, https://doi.org/10.5194/bg-20-4323-2023, https://doi.org/10.5194/bg-20-4323-2023, 2023
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Using a numerical model, we revealed that a large proportion of nutrients in a semi-enclosed sea (Seto Inland Sea, Japan) comes from the Pacific Ocean and supports about half of the phytoplankton growth in the sea. Such results imply that the human-made management of nutrient load from land needs to consider the presence of oceanic nutrients, which act as a background concentration and are not controlled by human activities.
Roxane Tzortzis, Andrea M. Doglioli, Monique Messié, Stéphanie Barrillon, Anne A. Petrenko, Lloyd Izard, Yuan Zhao, Francesco d'Ovidio, Franck Dumas, and Gérald Gregori
Biogeosciences, 20, 3491–3508, https://doi.org/10.5194/bg-20-3491-2023, https://doi.org/10.5194/bg-20-3491-2023, 2023
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We studied a finescale frontal structure in order to highlight its influence on the dynamics and distribution of phytoplankton communities. We computed the growth rates of several phytoplankton groups identified by flow cytometry in two water masses separated by the front. We found contrasted phytoplankton dynamics on the two sides of the front, consistent with the distribution of their abundances. Our study gives new insights into the physical and biological coupling on a finescale front.
Inès Mangolte, Marina Lévy, Clément Haëck, and Mark D. Ohman
Biogeosciences, 20, 3273–3299, https://doi.org/10.5194/bg-20-3273-2023, https://doi.org/10.5194/bg-20-3273-2023, 2023
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Ocean fronts are ecological hotspots, associated with higher diversity and biomass for many marine organisms, from bacteria to whales. Using in situ data from the California Current Ecosystem, we show that far from being limited to the production of diatom blooms, fronts are the scene of complex biophysical couplings between biotic interactions (growth, competition, and predation) and transport by currents that generate planktonic communities with an original taxonomic and spatial structure.
Jing-Ying Wu, Siou-Yan Lin, Jung-Fu Huang, Chen-Tung Arthur Chen, Jia-Jang Hung, Shao-Hung Peng, and Li-Lian Liu
Biogeosciences, 20, 2693–2706, https://doi.org/10.5194/bg-20-2693-2023, https://doi.org/10.5194/bg-20-2693-2023, 2023
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The shallow-water hydrothermal vents off the Kueishan Island, Taiwan, have the most extreme records of pH values (1.52), temperatures (116 °C), and H2S concentrations (172.4 mmol mol−1) in the world. White and yellow vents differ in the color and physical and chemical characteristics of emitted plumes. We found that the feeding habits of the endemic vent crabs (Xenograpsus testudinatus) are adapted to their resident vent types at a distance of 100 m, and the trans-vent movement is uncommon.
Clément Haëck, Marina Lévy, Inès Mangolte, and Laurent Bopp
Biogeosciences, 20, 1741–1758, https://doi.org/10.5194/bg-20-1741-2023, https://doi.org/10.5194/bg-20-1741-2023, 2023
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Phytoplankton vary in abundance in the ocean over large regions and with the seasons but also because of small-scale heterogeneities in surface temperature, called fronts. Here, using satellite imagery, we found that fronts enhance phytoplankton much more where it is already growing well, but despite large local increases the enhancement for the region is modest (5 %). We also found that blooms start 1 to 2 weeks earlier over fronts. These effects may have implications for ecosystems.
Cédric Bacour, Natasha MacBean, Frédéric Chevallier, Sébastien Léonard, Ernest N. Koffi, and Philippe Peylin
Biogeosciences, 20, 1089–1111, https://doi.org/10.5194/bg-20-1089-2023, https://doi.org/10.5194/bg-20-1089-2023, 2023
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The impact of assimilating different dataset combinations on regional to global-scale C budgets is explored with the ORCHIDEE model. Assimilating simultaneously multiple datasets is preferable to optimize the values of the model parameters and avoid model overfitting. The challenges in constraining soil C disequilibrium using atmospheric CO2 data are highlighted for an accurate prediction of the land sink distribution.
Matti Kämäräinen, Juha-Pekka Tuovinen, Markku Kulmala, Ivan Mammarella, Juha Aalto, Henriikka Vekuri, Annalea Lohila, and Anna Lintunen
Biogeosciences, 20, 897–909, https://doi.org/10.5194/bg-20-897-2023, https://doi.org/10.5194/bg-20-897-2023, 2023
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In this study, we introduce a new method for modeling the exchange of carbon between the atmosphere and a study site located in a boreal forest in southern Finland. Our method yields more accurate results than previous approaches in this context. Accurately estimating carbon exchange is crucial for gaining a better understanding of the role of forests in regulating atmospheric carbon and addressing climate change.
Stéphanie Barrillon, Robin Fuchs, Anne A. Petrenko, Caroline Comby, Anthony Bosse, Christophe Yohia, Jean-Luc Fuda, Nagib Bhairy, Frédéric Cyr, Andrea M. Doglioli, Gérald Grégori, Roxane Tzortzis, Francesco d'Ovidio, and Melilotus Thyssen
Biogeosciences, 20, 141–161, https://doi.org/10.5194/bg-20-141-2023, https://doi.org/10.5194/bg-20-141-2023, 2023
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Extreme weather events can have a major impact on ocean physics and biogeochemistry, but their study is challenging. In May 2019, an intense storm occurred in the north-western Mediterranean Sea, during which in situ multi-platform measurements were performed. The results show a strong impact on the surface phytoplankton, highlighting the need for high-resolution measurements coupling physics and biology during these violent events that may become more common in the context of global change.
Darren C. McKee, Scott C. Doney, Alice Della Penna, Emmanuel S. Boss, Peter Gaube, Michael J. Behrenfeld, and David M. Glover
Biogeosciences, 19, 5927–5952, https://doi.org/10.5194/bg-19-5927-2022, https://doi.org/10.5194/bg-19-5927-2022, 2022
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As phytoplankton (small, drifting photosynthetic organisms) drift with ocean currents, biomass accumulation rates should be evaluated in a Lagrangian (observer moves with a fluid parcel) as opposed to an Eulerian (observer is stationary) framework. Here, we use profiling floats and surface drifters combined with satellite data to analyse time and length scales of chlorophyll concentrations (a proxy for biomass) and of velocity to quantify how phytoplankton variability is related to water motion.
Karo Michaelian and Aleksandar Simeonov
Biogeosciences, 19, 4029–4034, https://doi.org/10.5194/bg-19-4029-2022, https://doi.org/10.5194/bg-19-4029-2022, 2022
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We reply to Lars Björn's critique of our article concerning the importance of photon dissipation to the origin and evolution of the biosphere. Björn doubts our assertion that organic pigments, ecosystems, and the biosphere arose out of a non-equilibrium thermodynamic imperative to increase global photon dissipation. He shows that the albedo of some non-living material is less than that of living material. We point out, however, that photon dissipation involves other factors besides albedo.
Reint Fischer, Delphine Lobelle, Merel Kooi, Albert Koelmans, Victor Onink, Charlotte Laufkötter, Linda Amaral-Zettler, Andrew Yool, and Erik van Sebille
Biogeosciences, 19, 2211–2234, https://doi.org/10.5194/bg-19-2211-2022, https://doi.org/10.5194/bg-19-2211-2022, 2022
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Since current estimates show that only about 1 % of the all plastic that enters the ocean is floating at the surface, we look at subsurface processes that can cause vertical movement of (micro)plastic. We investigate how modelled algal attachment and the ocean's vertical movement can cause particles to sink and oscillate in the open ocean. Particles can sink to depths of > 5000 m in regions with high wind intensity and mainly remain close to the surface with low winds and biological activity.
Michelle Viswanathan, Tobias K. D. Weber, Sebastian Gayler, Juliane Mai, and Thilo Streck
Biogeosciences, 19, 2187–2209, https://doi.org/10.5194/bg-19-2187-2022, https://doi.org/10.5194/bg-19-2187-2022, 2022
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We analysed the evolution of model parameter uncertainty and prediction error as we updated parameters of a maize phenology model based on yearly observations, by sequentially applying Bayesian calibration. Although parameter uncertainty was reduced, prediction quality deteriorated when calibration and prediction data were from different maize ripening groups or temperature conditions. The study highlights that Bayesian methods should account for model limitations and inherent data structures.
Jessica Kolbusz, Tim Langlois, Charitha Pattiaratchi, and Simon de Lestang
Biogeosciences, 19, 517–539, https://doi.org/10.5194/bg-19-517-2022, https://doi.org/10.5194/bg-19-517-2022, 2022
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Western rock lobster larvae spend up to 11 months in offshore waters before ocean currents and their ability to swim transport them back to the coast. In 2008, there was a reduction in the number of puerulus (larvae) settling into the fishery. We use an oceanographic model to see how the environment may have contributed to the reduction. Our results show that a combination of effects from local currents and a widespread quiet period in the ocean off WA likely led to less puerulus settlement.
Rémy Asselot, Frank Lunkeit, Philip B. Holden, and Inga Hense
Biogeosciences, 19, 223–239, https://doi.org/10.5194/bg-19-223-2022, https://doi.org/10.5194/bg-19-223-2022, 2022
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Previous studies show that phytoplankton light absorption can warm the atmosphere, but how this warming occurs is still unknown. We compare the importance of air–sea heat versus CO2 flux in the phytoplankton-induced atmospheric warming and determine the main driver. To shed light on this research question, we conduct simulations with a climate model of intermediate complexity. We show that phytoplankton mainly warms the atmosphere by increasing the air–sea CO2 flux.
Roxane Tzortzis, Andrea M. Doglioli, Stéphanie Barrillon, Anne A. Petrenko, Francesco d'Ovidio, Lloyd Izard, Melilotus Thyssen, Ananda Pascual, Bàrbara Barceló-Llull, Frédéric Cyr, Marc Tedetti, Nagib Bhairy, Pierre Garreau, Franck Dumas, and Gérald Gregori
Biogeosciences, 18, 6455–6477, https://doi.org/10.5194/bg-18-6455-2021, https://doi.org/10.5194/bg-18-6455-2021, 2021
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This work analyzes an original high-resolution data set collected in the Mediterranean Sea. The major result is the impact of a fine-scale frontal structure on the distribution of phytoplankton groups, in an area of moderate energy with oligotrophic conditions. Our results provide an in situ confirmation of the findings obtained by previous modeling studies and remote sensing about the structuring effect of the fine-scale ocean dynamics on the structure of the phytoplankton community.
Johannes Vogel, Eva Paton, and Valentin Aich
Biogeosciences, 18, 5903–5927, https://doi.org/10.5194/bg-18-5903-2021, https://doi.org/10.5194/bg-18-5903-2021, 2021
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This study investigates extreme ecosystem impacts evoked by temperature and soil moisture in the Mediterranean Basin for the time span 1999–2019 with a specific focus on seasonal variations. The analysis showed that ecosystem vulnerability is caused by several varying combinations of both drivers during the yearly cycle. The approach presented here helps to provide insights on the specific phenological stage of the year in which ecosystem vulnerability to a certain climatic condition occurs.
Mara Freilich, Alexandre Mignot, Glenn Flierl, and Raffaele Ferrari
Biogeosciences, 18, 5595–5607, https://doi.org/10.5194/bg-18-5595-2021, https://doi.org/10.5194/bg-18-5595-2021, 2021
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Observations reveal that in some regions phytoplankton biomass increases during the wintertime when growth conditions are sub-optimal, which has been attributed to a release from grazing during mixed layer deepening. Measurements of grazer populations to support this theory are lacking. We demonstrate that a release from grazing when the winter mixed layer is deepening holds only for certain grazing models, extending the use of phytoplankton observations to make inferences about grazer dynamics.
Shuangling Chen, Mark L. Wells, Rui Xin Huang, Huijie Xue, Jingyuan Xi, and Fei Chai
Biogeosciences, 18, 5539–5554, https://doi.org/10.5194/bg-18-5539-2021, https://doi.org/10.5194/bg-18-5539-2021, 2021
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Subduction transports surface waters to the oceanic interior, which can supply significant amounts of carbon and oxygen to the twilight zone. Using a novel BGC-Argo dataset covering the western North Pacific, we successfully identified the imprints of episodic shallow subduction patches. These subduction patches were observed mainly in spring and summer (70.6 %), and roughly half of them extended below ~ 450 m, injecting carbon- and oxygen-enriched waters into the ocean interior.
Pierre Damien, Julio Sheinbaum, Orens Pasqueron de Fommervault, Julien Jouanno, Lorena Linacre, and Olaf Duteil
Biogeosciences, 18, 4281–4303, https://doi.org/10.5194/bg-18-4281-2021, https://doi.org/10.5194/bg-18-4281-2021, 2021
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The Gulf of Mexico deep waters are relatively poor in phytoplankton biomass due to low levels of nutrients in the upper layers. Using modeling techniques, we find that the long-living anticyclonic Loop Current eddies that are shed episodically from the Yucatan Channel strongly shape the distribution of phytoplankton and, more importantly, stimulate their growth. This results from the contribution of multiple mechanisms of physical–biogeochemical interactions discussed in this study.
Sergey V. Stanichny, Elena A. Kubryakova, and Arseny A. Kubryakov
Biogeosciences, 18, 3173–3188, https://doi.org/10.5194/bg-18-3173-2021, https://doi.org/10.5194/bg-18-3173-2021, 2021
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In this paper, we show that the short-term impact of tropical cyclones can trigger the intense, long-term bloom of coccolithophores, which are major marine calcifiers playing an important role in the balance and fluxes of inorganic carbon in the ocean. In our paper, we describe the evolution of and physical reasons for such an unusual bloom observed in autumn 2005 in the Black Sea on the basis of satellite data.
Fengshan Liu, Ying Chen, Nini Bai, Dengpan Xiao, Huizi Bai, Fulu Tao, and Quansheng Ge
Biogeosciences, 18, 2275–2287, https://doi.org/10.5194/bg-18-2275-2021, https://doi.org/10.5194/bg-18-2275-2021, 2021
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The sowing date is key to the surface biophysical processes in the winter dormancy period. The climate effect of the sowing date shift is therefore very interesting and may contribute to the mitigation of climate change. An earlier sowing date always had a higher LAI but a higher temperature in the dormancy period and a lower temperature in the growth period. The main reason was the relative contributions of the surface albedo and energy partitioning processes.
Peter Aartsma, Johan Asplund, Arvid Odland, Stefanie Reinhardt, and Hans Renssen
Biogeosciences, 18, 1577–1599, https://doi.org/10.5194/bg-18-1577-2021, https://doi.org/10.5194/bg-18-1577-2021, 2021
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In the literature, it is generally assumed that alpine lichen heaths keep their direct environment cool due to their relatively high albedo. However, we reveal that the soil temperature and soil heat flux are higher below lichens than below shrubs during the growing season, despite a lower net radiation for lichens. We also show that the differences in microclimatic conditions between these two vegetation types are more pronounced during warm and sunny days than during cold and cloudy days.
Oleg Sizov, Ekaterina Ezhova, Petr Tsymbarovich, Andrey Soromotin, Nikolay Prihod'ko, Tuukka Petäjä, Sergej Zilitinkevich, Markku Kulmala, Jaana Bäck, and Kajar Köster
Biogeosciences, 18, 207–228, https://doi.org/10.5194/bg-18-207-2021, https://doi.org/10.5194/bg-18-207-2021, 2021
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In changing climate, tundra is expected to turn into shrubs and trees, diminishing reindeer pasture and increasing risks of tick-borne diseases. However, this transition may require a disturbance. Fires in Siberia are increasingly widespread. We studied wildfire dynamics and tundra–forest transition over 60 years in northwest Siberia near the Arctic Circle. Based on satellite data analysis, we found that transition occurs in 40 %–85 % of burned tundra compared to 5 %–15 % in non-disturbed areas.
Kaveh Purkiani, André Paul, Annemiek Vink, Maren Walter, Michael Schulz, and Matthias Haeckel
Biogeosciences, 17, 6527–6544, https://doi.org/10.5194/bg-17-6527-2020, https://doi.org/10.5194/bg-17-6527-2020, 2020
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There has been a steady increase in interest in mining of deep-sea minerals in the eastern Pacific Ocean recently. The ocean state in this region is known to be highly influenced by rotating bodies of water (eddies), some of which can travel long distances in the ocean and impact the deeper layers of the ocean. Better insight into the variability of eddy activity in this region is of great help to mitigate the impact of the benthic ecosystem from future potential deep-sea mining activity.
Jing Yan, Nathaniel A. Bogie, and Teamrat A. Ghezzehei
Biogeosciences, 17, 6377–6392, https://doi.org/10.5194/bg-17-6377-2020, https://doi.org/10.5194/bg-17-6377-2020, 2020
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An uneven supply of water and nutrients in soils often drives how plants behave. We observed that plants extract all their required nutrients from dry soil patches in sufficient quantity, provided adequate water is available elsewhere in the root zone. Roots in nutrient-rich dry patches facilitate the nutrient acquisition by extensive growth, water release, and modifying water retention in their immediate environment. The findings are valuable in managing nutrient losses in agricultural systems.
Onur Kerimoglu, Yoana G. Voynova, Fatemeh Chegini, Holger Brix, Ulrich Callies, Richard Hofmeister, Knut Klingbeil, Corinna Schrum, and Justus E. E. van Beusekom
Biogeosciences, 17, 5097–5127, https://doi.org/10.5194/bg-17-5097-2020, https://doi.org/10.5194/bg-17-5097-2020, 2020
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In this study, using extensive field observations and a numerical model, we analyzed the physical and biogeochemical structure of a coastal system following an extreme flood event. Our results suggest that a number of anomalous observations were driven by a co-occurrence of peculiar meteorological conditions and increased riverine discharges. Our results call for attention to the combined effects of hydrological and meteorological extremes that are anticipated to increase in frequency.
Wei Hu, Kotaro Murata, Chunlan Fan, Shu Huang, Hiromi Matsusaki, Pingqing Fu, and Daizhou Zhang
Biogeosciences, 17, 4477–4487, https://doi.org/10.5194/bg-17-4477-2020, https://doi.org/10.5194/bg-17-4477-2020, 2020
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This paper reports the first estimate of the status of bacteria in long-distance-transported Asian dust, demonstrating that airborne dust, which can carry viable and nonviable bacteria on particle surfaces, is an efficient medium for constantly spreading bacteria at regional and even global scales. Such data are essential to better model and understand the roles and activities of bioaerosols in environmental evolution and climate change and the potential risks of bioaerosols to human health.
Inge Grünberg, Evan J. Wilcox, Simon Zwieback, Philip Marsh, and Julia Boike
Biogeosciences, 17, 4261–4279, https://doi.org/10.5194/bg-17-4261-2020, https://doi.org/10.5194/bg-17-4261-2020, 2020
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Based on topsoil temperature data for different vegetation types at a low Arctic tundra site, we found large small-scale variability. Winter temperatures were strongly influenced by vegetation through its effects on snow. Summer temperatures were similar below most vegetation types and not consistently related to late summer permafrost thaw depth. Given that vegetation type defines the relationship between winter and summer soil temperature and thaw depth, it controls permafrost vulnerability.
Long Jiang, Theo Gerkema, Jacco C. Kromkamp, Daphne van der Wal, Pedro Manuel Carrasco De La Cruz, and Karline Soetaert
Biogeosciences, 17, 4135–4152, https://doi.org/10.5194/bg-17-4135-2020, https://doi.org/10.5194/bg-17-4135-2020, 2020
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A seaward increasing chlorophyll-a gradient is observed during the spring bloom in a Dutch tidal bay. Biophysical model runs indicate the roles of bivalve grazing and tidal import in shaping the gradient. Five common spatial phytoplankton patterns are summarized in global estuarine–coastal ecosystems: seaward increasing, seaward decreasing, concave with a chlorophyll maximum, weak spatial gradients, and irregular patterns.
Emil De Borger, Justin Tiano, Ulrike Braeckman, Tom Ysebaert, and Karline Soetaert
Biogeosciences, 17, 1701–1715, https://doi.org/10.5194/bg-17-1701-2020, https://doi.org/10.5194/bg-17-1701-2020, 2020
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By applying a novel technique to quantify organism-induced sediment–water column fluid exchange (bioirrigation), we show that organisms in subtidal (permanently submerged) areas have similar bioirrigation rates as those that inhabit intertidal areas (not permanently submerged), but organisms in the latter irrigate deeper burrows in this study. Our results expand on traditional methods to quantify bioirrigation rates and broaden the pool of field measurements of bioirrigation rates.
Sheila N. Estrada-Allis, Julio Sheinbaum Pardo, Joao M. Azevedo Correia de Souza, Cecilia Elizabeth Enríquez Ortiz, Ismael Mariño Tapia, and Jorge A. Herrera-Silveira
Biogeosciences, 17, 1087–1111, https://doi.org/10.5194/bg-17-1087-2020, https://doi.org/10.5194/bg-17-1087-2020, 2020
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Continental shelves are the most productive areas in the ocean and can have an important impact on the nutrient cycle as well as the climate system. The one in Yucatán is the largest shelf in the Gulf of Mexico. However, its nutrient budget remains unidentifiable. Here we propose not only a general nutrient budget for the Yucatán Shelf but also the physical processes responsible for its pathway modulation through a physical–biogeochemical coupled model of the whole Gulf of Mexico.
Ashley Dubnick, Martin Sharp, Brad Danielson, Alireza Saidi-Mehrabad, and Joel Barker
Biogeosciences, 17, 963–977, https://doi.org/10.5194/bg-17-963-2020, https://doi.org/10.5194/bg-17-963-2020, 2020
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We found that glaciers with basal temperatures near the melting point mobilize more solutes, nutrients, and microbes from the underlying substrate and are more likely to promote in situ biogeochemical activity than glaciers with basal temperatures well below the melting point. The temperature at the base of glaciers is therefore an important control on the biogeochemistry of ice near glacier beds, and, ultimately, the potential solutes, nutrients, and microbes exported from glaciated watersheds.
Audrey Delpech, Anna Conchon, Olivier Titaud, and Patrick Lehodey
Biogeosciences, 17, 833–850, https://doi.org/10.5194/bg-17-833-2020, https://doi.org/10.5194/bg-17-833-2020, 2020
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Micronekton is an important, yet poorly known, component of the trophic chain, which partly contributes to the storage of CO2 in the deep ocean thanks to biomass vertical migrations. In this study, we characterize the ideal sampling regions to estimate the amount of biomass that undergoes theses migrations. We find that observations made in warm, nondynamic and productive waters reduce the error of the estimation by 20 %. This result should likely serve for future in situ network deployment.
Filippos Tagklis, Takamitsu Ito, and Annalisa Bracco
Biogeosciences, 17, 231–244, https://doi.org/10.5194/bg-17-231-2020, https://doi.org/10.5194/bg-17-231-2020, 2020
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Deoxygenation of the oceans is potentially one of the most severe ecosystem stressors resulting from global warming given the high sensitivity of dissolved oxygen to ocean temperatures. Climate models suggest that despite the thermodynamic tendency of the oceans to lose oxygen, certain regions experience significant changes in the biologically driven O2 consumption, resulting in a resistance against deoxygenation. Overturning circulation changes are responsible for such a behavior.
Mohammad Abdul Halim, Han Y. H. Chen, and Sean C. Thomas
Biogeosciences, 16, 4357–4375, https://doi.org/10.5194/bg-16-4357-2019, https://doi.org/10.5194/bg-16-4357-2019, 2019
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Using field data collected over 4 years across a range of stand ages, we investigated how seasonal surface albedo in boreal forest varies with stand age, stand structure, and composition. Our results indicate that successional change in species composition is a key driver of age–related patterns in albedo, with hardwood species associated with higher albedo. The patterns described have important implications for both climate modeling and
climate–smartboreal forest management.
Paul A. Moore, Maxwell C. Lukenbach, Dan K. Thompson, Nick Kettridge, Gustaf Granath, and James M. Waddington
Biogeosciences, 16, 3491–3506, https://doi.org/10.5194/bg-16-3491-2019, https://doi.org/10.5194/bg-16-3491-2019, 2019
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Using very-high-resolution digital elevation models (DEMs), we assessed the basic structure and microtopographic variability of hummock–hollow plots at boreal and hemi-boreal sites primarily in North America. Using a simple model of peatland biogeochemical function, our results suggest that both surface heating and moss productivity may not be adequately resolved in models which only consider idealized hummock–hollow units.
Renee K. Gruber, Ryan J. Lowe, and James L. Falter
Biogeosciences, 16, 1921–1935, https://doi.org/10.5194/bg-16-1921-2019, https://doi.org/10.5194/bg-16-1921-2019, 2019
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Researchers from the University of Western Australia's Oceans Institute are studying large tides (up to 12 m range) that occur in the Kimberley region of Australia. These tides flush coral reefs with water rich in nutrients, which supports the growth of reef organisms. In this paper, we show how tidal cycles and seasons control nutrient availability on reefs. This study is among the first published accounts of reefs and water quality data in the remote and pristine Kimberley region.
Sergey A. Marakushev and Ol'ga V. Belonogova
Biogeosciences, 16, 1817–1828, https://doi.org/10.5194/bg-16-1817-2019, https://doi.org/10.5194/bg-16-1817-2019, 2019
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Among the existing theories of the autotrophic origin of life, CO2 is usually considered to be the carbon source for nascent autotrophic metabolism. However, ancestral carbon used in metabolism may have been derived from CH4 if the outflow of magma fluid to the surface of the Earth consisted mainly of methane. The hydrothermal system model is considered in the form of a phase diagram, which demonstrates the area of redox and P and T conditions favorable to development of primary methanotroph.
Venugopal Thushara, Puthenveettil Narayana Menon Vinayachandran, Adrian J. Matthews, Benjamin G. M. Webber, and Bastien Y. Queste
Biogeosciences, 16, 1447–1468, https://doi.org/10.5194/bg-16-1447-2019, https://doi.org/10.5194/bg-16-1447-2019, 2019
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Chlorophyll distribution in the ocean remains to be explored in detail, despite its climatic significance. Here, we document the vertical structure of chlorophyll in the Bay of Bengal using observations and a model. The shape of chlorophyll profiles, characterized by prominent deep chlorophyll maxima, varies in dynamically different regions, controlled by the monsoonal forcings. The present study provides new insights into the vertical distribution of chlorophyll, rarely observed by satellites.
Soeren Thomsen, Johannes Karstensen, Rainer Kiko, Gerd Krahmann, Marcus Dengler, and Anja Engel
Biogeosciences, 16, 979–998, https://doi.org/10.5194/bg-16-979-2019, https://doi.org/10.5194/bg-16-979-2019, 2019
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Physical and biogeochemical observations from an autonomous underwater vehicle in combination with ship-based measurements are used to investigate remote and local drivers of the oxygen and nutrient variability off Mauritania. Beside the transport of oxygen and nutrients characteristics from remote areas towards Mauritania also local remineralization of organic material close to the seabed seems to be important for the distribution of oxygen and nutrients.
Pascale Bouruet-Aubertot, Yannis Cuypers, Andrea Doglioli, Mathieu Caffin, Christophe Yohia, Alain de Verneil, Anne Petrenko, Dominique Lefèvre, Hervé Le Goff, Gilles Rougier, Marc Picheral, and Thierry Moutin
Biogeosciences, 15, 7485–7504, https://doi.org/10.5194/bg-15-7485-2018, https://doi.org/10.5194/bg-15-7485-2018, 2018
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The OUTPACE cruise took place between New Caledonia and French Polynesia. The main purpose was to understand how micro-organisms can survive in a very poor environment. One main source of nutrients is at depth, below the euphotic layer where micro-organisms live. The purpose of the turbulence measurements was to determine to which extent turbulence may
upliftnutrients into the euphotic layer. The origin of the turbulence that was found contrasted along the transect was also determined.
Daniel D. Richter, Sharon A. Billings, Peter M. Groffman, Eugene F. Kelly, Kathleen A. Lohse, William H. McDowell, Timothy S. White, Suzanne Anderson, Dennis D. Baldocchi, Steve Banwart, Susan Brantley, Jean J. Braun, Zachary S. Brecheisen, Charles W. Cook, Hilairy E. Hartnett, Sarah E. Hobbie, Jerome Gaillardet, Esteban Jobbagy, Hermann F. Jungkunst, Clare E. Kazanski, Jagdish Krishnaswamy, Daniel Markewitz, Katherine O'Neill, Clifford S. Riebe, Paul Schroeder, Christina Siebe, Whendee L. Silver, Aaron Thompson, Anne Verhoef, and Ganlin Zhang
Biogeosciences, 15, 4815–4832, https://doi.org/10.5194/bg-15-4815-2018, https://doi.org/10.5194/bg-15-4815-2018, 2018
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As knowledge in biology and geology explodes, science becomes increasingly specialized. Given the overlap of the environmental sciences, however, the explosion in knowledge inevitably creates opportunities for interconnecting the biogeosciences. Here, 30 scientists emphasize the opportunities for biogeoscience collaborations across the world’s remarkable long-term environmental research networks that can advance science and engage larger scientific and public audiences.
Ivy Frenger, Matthias Münnich, and Nicolas Gruber
Biogeosciences, 15, 4781–4798, https://doi.org/10.5194/bg-15-4781-2018, https://doi.org/10.5194/bg-15-4781-2018, 2018
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Although mesoscale ocean eddies are ubiquitous in the Southern Ocean (SO), their regional and seasonal association with phytoplankton has not been quantified. We identify over 100 000 eddies and determine the associated phytoplankton biomass anomalies using satellite-based chlorophyll (Chl) as a proxy. The emerging Chl anomalies can be explained largely by lateral advection of Chl by eddies. This impact of eddies on phytoplankton may implicate downstream effects on SO biogeochemical properties.
Yi Sun, Xiong Z. He, Fujiang Hou, Zhaofeng Wang, and Shenghua Chang
Biogeosciences, 15, 4233–4243, https://doi.org/10.5194/bg-15-4233-2018, https://doi.org/10.5194/bg-15-4233-2018, 2018
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To investigate how grazing alters litter composition, quality and decomposition, we collected litter from grazing (GP) and grazing exclusion paddocks (GEP) and incubated them in situ and across sites. Grazing increased litter N and grazing exclusion increased litter mass of palatable species and promoted SOC. Litter decomposed faster in GP and N was opposite. Site environment had more impact on litter decomposition. Results may be helpful in developing strategies to restore degraded grasslands.
Louise Rousselet, Alain de Verneil, Andrea M. Doglioli, Anne A. Petrenko, Solange Duhamel, Christophe Maes, and Bruno Blanke
Biogeosciences, 15, 2411–2431, https://doi.org/10.5194/bg-15-2411-2018, https://doi.org/10.5194/bg-15-2411-2018, 2018
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The patterns of the large- and fine-scale surface circulation on biogeochemical and biological distributions are examined in the western tropical South Pacific (WTSP) in the context of the OUTPACE oceanographic cruise. The combined use of in situ and satellite data allows for the identification of water mass transport pathways and fine-scale structures, such as fronts, that drive surface distribution of tracers and microbial community structures.
Alain de Verneil, Louise Rousselet, Andrea M. Doglioli, Anne A. Petrenko, Christophe Maes, Pascale Bouruet-Aubertot, and Thierry Moutin
Biogeosciences, 15, 2125–2147, https://doi.org/10.5194/bg-15-2125-2018, https://doi.org/10.5194/bg-15-2125-2018, 2018
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Oceanographic campaigns to measure biogeochemical processes popularly deploy drifters with onboard incubations to stay in a single body of water. Here, we aggregate physical data taken during such a cruise, OUTPACE, to independently test in a new approach whether the drifter really stayed in what can be considered a single biological or chemical environment. This study concludes that future campaigns would benefit from similar data collection and analysis to validate their sampling strategy.
Cited articles
Aspiras, R. B., Allen, O. N., Harris, R. F., and Chesters, G.:Aggregate
stabilization by filamentous microorganisms, Soil Sci., 112, 282–284, 1971.
Bahram, M., Hildebrand, F., Forslund, S. K., Anderson, J. L.,
Soudzilovskaia, N. A., Bodegom, P. M., Bengtsson-Palme, J., Anslan, S.,
Coelho, L. P., Herend, H., Huerta-Cepas, J., Medama, M. H., Maltz, M. R.,
Mundra, S., Olsson, P. A., Pent, M., Polme, S., Sunagawa, S., Ryberg, M.,
Tedersoo, L., and Bork, P.: Structure and function of the global topsoil
microbiome, Nature, 560, 233–237, 2018.
Baldock, J. A.: Interactions of organic materials and microorganisms with
minerals in the stabilization of soil structure, in: Interactions Between
Soil Particles and Microorganisms, edited by: Huang, P. M., Bollag J.-M., and Senesi N., John Wiley & Sons, New York, NY, 85–131, 2002.
Bardgett, R. D. and Van Der Putten, W. H.: Belowground biodiversity and ecosystem functioning, Nature, 515, 505–511, 2014.
Bardgett, R. D., Keiller, S., Cook, R., and Gilburn, A. S.: Dynamic interactions
between soil animals and microorganisms in upland grassland soils amended
with sheep dung: a microcosm experiment, Soil Biol. Biochem., 30, 531–539,
1998.
Barthes, B. and Roose, E.: Aggregate stability as an indicator of soil
susceptibility to runoff and erosion; validation at several levels, Catena,
47, 133–149, 2002.
Bradford, M. A.: Re-visioning soil food webs, Soil Biol. Biochem., 102, 1–3,
2016.
Bradford, M. A., Keiser, A. D., Davies, C. A., Mersmann, C. A., and Strickland,
M. S.: Empirical evidence that soil carbon formation from plant inputs
is positively related to microbial growth, Biogeochemistry, 113, 271–281, 2013.
Buyer, J. S. and Sasser, M.: High throughput phospholipid fatty acid
analysis of soils, Appl. Soil Ecol., 61, 127–130, 2012.
Caesar-TonThat, T. C. and Cochran, V. L.: Soil aggregate stabilization by a
saprophytic lignin-decomposing basidiomycete fungus I. Microbiological
aspects, Biol. Fert. Soils, 32, 374–380, 2000.
Caesar-TonThat, T. C., Caesar, A. J., Gaskin, J. F., Sainju, U. M., and
Busscher, W. J.: Taxonomic diversity of predominant culturable bacteria
associated with microaggregates from two different agroecosystems and their
ability to aggregate soil in vitro, Appl. Soil Ecol., 36, 10–21, 2007.
Caesar-TonThat, T. C., Stevens, W. B., Sainju, U. M., Caesar, A. J., West,
M., and Gaskin, J. F.: Soil-Aggregating Bacterial Community as Affected by
Irrigation, Tillage, and Cropping System in the Northern Great Plains, Soil
Sci., 179, 11–20, 2014.
Chenu, C.: Influence of a fungal polysaccharide, scleroglucan, on clay
microstructures, Soil Biol. Biochem., 21, 299–305, 1989.
Chenu, C.: Clay- or sand-polysaccharide associations as models for the
interface between micro-organisms and soil: water related properties and
microstructure, in: Proceedings of the International Workshop on Methods of
Research on Soil Structure/Soil Biota Interrelationships, Elsevier,
Wageningen, the Netherlands, 24–28 November 1991, 143–156, 1993.
Coleman, D., Fu, S. L., Hendrix, P., and Crossley, D.: Soil foodwebs in
agroecosystems: impacts of herbivory and tillage management, Eur. J. Soil
Biol., 38, 21–28, 2002.
Contosta, A. R., Frey, S. D., and Cooper, A. B.: Soil microbial communities vary
as much over time as with chronic warming and nitrogen additions, Soil Biol.
Biochem., 88, 19–24, 2015.
Cosentino, D., Chenu, C., and Le Bissonnais, Y.: Aggregate stability and
microbial community dynamics under drying–wetting cycles in a silt loam
soil, Soil Biol. Biochem., 38, 2053–2062, 2006.
Coulibaly, S. F. M., Winck, B. R., Akpa-Vinceslas, M., Mignot, L., Legras,
M., Forey, E., and Chauvat, M.: Functional Assemblages of Collembola Determine
Soil Microbial Communities and Associated Functions, Front. Environ. Sci.,
7, 52, https://doi.org/10.3389/fenvs.2019.00052, 2019.
Cragg, R. G. and Bardgett, R. D.: How changes in soil faunal diversity and
composition within a trophic group influence decomposition processes, Soil
Biol. Biochem., 33, 2073–2081, 2001.
Crowther, T. W., Thomas, S. M., Maynard, D. S., Baldrian, P., Covey, K.,
Frey, S. D., van Diepen, L. T. A., and Bradford, M. A.: Biotic interactions
mediate soil microbial feedbacks to climate change, P. Natl. Acad. Sci. USA, 112, 7033–7038, 2015.
Danese, P. N., Pratt, L. A., and Kolter, R.: Exopolysaccharide production is
required for development of Escherichia coli K-12 biofilm architecture, J.
Bacteriol., 182, 3593–3596, 2000.
Daynes, C. N., Zhang, N., Saleeba, J. A., and McGee, P. A.: Soil aggregates
formed in vitro by saprotrophic Trichocomaceae have transient
water-stability, Soil Biol. Biochem., 48, 151–161, 2012.
de Vries, F. T. and Caruso, T.: Eating from the same plate? Revisiting the role
of labile carbon inputs in the soil food web, Soil Biol. Biochem., 102, 4–9,
2016.
de Vries, F. T., Griffiths, R. I., Bailey, M., Craig, H., Girlanda, M.,
Gweon, H. S., Hallin, S., Kaisermann, A., Keith, A., Kretzschmar, M., Lemanceau,
P., Lumini, E., Mason, K. E., Olivier, A., Ostle, N., Prosser, J. I., Thin,
C., Thomson, B., and Bardgett, R.: Soil bacterial networks are less stable under
drought than fungal networks, Nat. Commun., 9, 3033, https://doi.org/10.1038/s41467-018-05516-7, 2018.
Degens, B. P., Sparling, G. P., and Abbott, L. K.: Increasing the length of
hyphae in a sandy soil increases the amount of water-stable aggregates,
Appl. Soil. Ecol., 3, 149–159, 1996.
Delgado-Baquerizo, M., Maestre, F. T., Reich, P. B., Jeffries, T. C., Gaitan,
J. J., Encinar, D., Berdugo, M., Campbell, C. D., and Singh, B. K.: Microbial
diversity drives multifunctionality in terrestrial ecosystems, Nat. Commun.,
7, 10541, https://doi.org/10.1038/ncomms10541, 2016.
Deveau, A., Bonito, G., Uehling, J., Paoletti, M., Becker, M., Bindschedler,
S., Hacquard, S., Hervé, V., Labbé, J., Lastovetsky, O. A.,
Mieszkin, S., Millet, L. J., Vajna, B., Junier, P., Bonfante, P., Krom, B.
P., Olsson, S., van Elsas, J. D., and Wick, L. Y.: Bacterial–fungal
interactions: ecology, mechanisms and challenges, FEMS Microbiol. Rev.,
42, 335–352, 2018.
DIN ISO 10694:1996-08: Bodenbeschaffenheit – Bestimmung von organischem
Kohlenstoff und Gesamtkohlenstoff nach trockener Verbrennung
(Elementaranalyse; ISO 10694:1995), Beuth publishing DIN, Germany, 1996.
Djigal D., Brauman A., Diop T. A., Chotte J. L., and Villenave C.: Influence of
bacterial-feeding nematodes (Cephalobidae) on soil microbial communities
during maize growth, Soil Biol. Biochem., 36, 323–331, 2004.
Domsch, K. H., Gams, W., and Anderson, T.-H.: Compendium of soil fungi, Vols. I
and II, 2nd edn., Academic Press, Oxford, 1993.
Dubuis, C., Keel, C., and Haas, D.: Dialogues of root-colonizing biocontrol
pseudomonads, Eur. J. Plant Pathol., 119, 311–328, 2007.
Erktan, A., Balmot, J., Mérino-Martin, L., Monnier, Y., Pailler, F.,
Coq, S., Abiven, S., Le Bissonnais, Y., and Stokes, A.: Immediate and long-term
effect of tannins in the stabilization of Mediterranean soil aggregates,
Soil Biol. Biochem., 105, 197–205, 2017.
Erktan, A., Rillig, C. M., Carminati, A., Jousset, A., and Scheu, S.:
Dataset_2020_Biogeosciences_Protists and collembolans alter microbial community composition, C dynamics
and soil aggregation in simplified consumer – prey systems,
Zenodo, https://doi.org/10.5281/zenodo.4005651, 2020.
Filser, J., Faber, J. H., Tiunov, A. V., Brussaard, L., Frouz, J., De Deyn, G., Uvarov, A. V., Berg, M. P., Lavelle, P., Loreau, M., Wall, D. H., Querner, P., Eijsackers, H., and Jiménez, J. J.: Soil fauna: key to new carbon models, SOIL, 2, 565–582, https://doi.org/10.5194/soil-2-565-2016, 2016.
Frostegård, Å. 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.
Geisen, S., Mitchell, E. A., Adl, S., Bonkowski, M., Dunthorn, M., Ekelund,
F., Fernández, L. D., Jousset, A., Krashevska, A., Singer, D., Spiegel,
F. W., Walochnik, J., and Lara, E.: Soil protists: a fertile frontier in soil
biology research, FEMS Microbiol. Rev., 42, 293–323, 2018.
Glassman, S. I., Weihe, C., Li, J., Albright, M. B., Looby, C. I., Martiny, A. C., Treseder, K. K., Allison, S. D., and Martiny, J. B. H.: Decomposition responses to climate depend on microbial community composition, P Natl. Acad. Sci. USA, 115, 11994–11999, 2018.
Gorka, S., Dietrich, M., Mayerhofer, W., Gabriel, R., Wiesenbauer, J.,
Martin, V., Zheng, Q., Imai, B., Prommer, J., Weidinger, M., Schweiger, P.,
Eichorst, S. A., Wagner, M., Richter, A., Schintlmeister, A., Woebken, D.,
Kaiser, C.: Rapid transfer of plant photosynthates to soil bacteria via
ectomycorrhizal hyphae and its interaction with nitrogen availability.
Front. Microbiol., 10, 168, https://doi.org/10.3389/fmicb.2019.00168, 2019.
Gormsen, D., Olsson, P. I. A., and Hedlund, K.: The influence of collembolans
and earthworms on AM fungal mycelium, Appl. Soil Ecol., 27, 211–220, 2004.
Grandy, A. S., Wieder, W. R., Wickings, K., and Kyker-Snowman, E.: Beyond
microbes: Are fauna the next frontier in soil biogeochemical models?, Soil
Biol. Biochem., 102, 40–44, 2016.
Griffiths, B. S. and Bardgett, R. D.: Interactions between microbe-feeding
invertebrates and soil microorganisms, in: Modern soil microbiology, edited
by: Van Elsas, J. D., Trevors, J. T., and Wellington, E. M. H, Editions M.
Dekker, New York, 165–182, 1997.
Griffiths, R. I., Thomson, B. C., James, P., Bell, T., Bailey, M., and Whiteley,
A. S.: The bacterial biogeography of British soils, Environ. Microbiol., 13,
1642–1654, 2011.
Hopkin, S. P. (Ed.): Biology of the springtails - Insecta: Collembola,
Oxford University Press, Oxford, UK, 1997.
ISO/FDIS109030:2012(E): Soil quality – Measurement of the stability of soil aggregates subjected to
the action of water, International Organization for Standardization, France, 2012.
Jiang, Y., Liu, M., Zhang, J., Chen, Y., Chen, X., Chen, L., Li, H., Zhang,
X.-X., and Sun, B.: Nematode grazing promotes bacterial community dynamics in
soil at the aggregate level, ISME J., 11, 2705–2717, 2017.
Jousset, A. and Bonkowski, M.: The model predator Acanthamoeba castellanii
induces the production of 2, 4, DAPG by the biocontrol strain Pseudomonas
fluorescens Q2-87, Soil Biol. Biochem., 42, 1647–1649, 2010.
Jousset, A., Scheu, S., and Bonkowski, M.: Secondary metabolite production
facilitates establishment of rhizobacteria by reducing both protozoan
predation and the competitive effects of indigenous bacteria, Funct. Ecol.,
22, 714–719, 2008.
Jousset, A., Rochat, L., Péchy-Tarr, M., Keel, C., Scheu, S., and Bonkowski,
M: Predators promote defence of rhizosphere bacterial populations by
selective feeding on non-toxic cheaters, ISME J., 3, 666–674, 2009.
Le Bissonnais, Y. L.: Aggregate stability and assessment of soil
crustability and erodibility: I. Theory and methodology, Eur. J. Soil Sci., 47, 425–437, 1996.
Le Bissonnais, Y. and Arrouays, D. : Aggregate stability and assessment of soil
crustability and erodibility: II. Application to humic loamy soils with
various organic carbon contents, Eur. J. Soil Sci., 48, 39–48, 1997.
Lehmann, A., Zheng, W., and Rillig, M. C.: Soil biota contributions to soil
aggregation, Nat. Ecol. Evol., 1, 1828–1835, 2017.
Lehmann, A., Zheng, W., Ryo, M., Soutschek, K., Roy, J., Rongstock, R.,
Maaß, S., and Rillig, M. C.: Fungal Traits Important for Soil Aggregation,
Front. Microbiol., 10, 2904, https://doi.org/10.3389/fmicb.2019.02904, 2020.
Linder, M. B., Szilvay, G. R., Nakari-Setälä, T., and Penttilä, M.
E.: Hydrophobins: the protein-amphiphiles of filamentous fungi, FEMS
Microbiol. Rev., 29, 877–896, 2005.
Liu, X., Eusterhues, K., Thieme, J., Ciobota, V., Höschen, C., Mueller,
C. W., Küsel, K., Kögel-Knaber, I., Rösch, P., Popp, J., and
Totsche, K.: STXM and NanoSIMS Investigations on EPS Fractions before and
after Adsorption to Goethite, Environ. Sci. Technol., 47, 3158–3166, 2013.
Lucas, J. M., McBride, S. G., and Strickland, M. S.: Trophic level mediates
soil microbial community composition and function, Soil Biol. Biochem., 143,
107756, https://doi.org/10.1016/j.soilbio.2020.107756, 2020.
Lussenhop, J.: Mechanisms of microarthropod–microbial interactions in soil,
Adv. Ecol. Res., 23, 1–33, 1992.
Macfadyen, A.: Simple methods for measuring and maintaining the proportion
of carbon dioxide in air, for use in ecological studies of soil respiration,
Soil Biol. Biochem., 2, 9–18, 1970.
Malik, A. A., Chowdhury, S., Schlager, V., Oliver, A., Puissant, J.,
Vazquez, P. G. M., Jehmlich, N., von Bergen, M., Griffiths, R. I, and Gleixner,
G.: Soil Fungal : Bacterial Ratios Are Linked to Altered Carbon Cycling,
Front. Microbiol., 7, 1247, https://doi.org/10.3389/fmicb.2016.01247, 2016.
Malik, A. A., Puissant, J., Buckeridge, K. M., Goodall, T., Jehmlich, N.,
Chowdhury, S., Gweon, H. S., Peyton, J. M., mason, K. E., van Agtmaal, M.,
Blaud, A., Clark, I. M., Whitaker, J., Pywell, R. F., Ostle, N., Gleixner,
G., and Griffiths, R. I.: Land use driven change in soil pH affects microbial
carbon cycling processes, Nat. Commun., 9, 1–10, 2018.
Malik, A. A., Martiny, J. B., Brodie, E. L., Martiny, A. C., Treseder, K.
K., and Allison, S. D.: Defining trait-based microbial strategies with
consequences for soil carbon cycling under climate change, ISME J., 14,
1–9, 2020.
Matz, C. and Kjelleberg, S.: Off the hook–how bacteria survive protozoan
grazing, Trends Microbiol., 13, 302–307, 2005.
Milcu, A., Partsch, S., Langel, R., and Scheu, S.: The response of decomposers
(earthworms, springtails and microorganisms) to variations in species and
functional group diversity of plants, Oikos, 112, 513–524, 2006.
Mikola, J. and Setälä, H.: No evidence of trophic cascades in an
experimental microbial- based soil food web, Ecology, 79, 153–164, 1998.
Morriën, E., Hannula, S. E., Snoek, L. B., Helmsing, N. R., Zweers, H.,
De Hollander, M., Soto, R. L., Bouffaud, M.-L., Buée, M., Dimmers, W.,
Duyts, H., Geisen, S., Girlanda, M., Griffiths, R. I., Jørgensen, H.-B.,
Jensen, J., Plassart, P., Redecker, D., Schmelz, R. M., Schmidt, O.,
Thomson, B. C., Tisserant, E., Uroz, S., Winding, A., Bailey, M. J.,
Bonkowski, M., Faber, J. H., Martin, F., Lemanceau, P., de Boer, W., van
Veen, J. A., and van der Putten, W. H.: Soil networks become more connected and
take up more carbon as nature restoration progresses, Nat. Commun., 8, 1–10,
2017.
Mu'minah, B., Hazarin Subair, F., and Baso, D.: Isolation and
screening of exoplysaccharide producing bacteri (EPS) from potato
rhizosphere dor soil aggregation, Int. J. Curr. Microbiol. App. Sci., 4,
341–349, 2015.
Murase, J., Noll, M., and Frenzel, P.: Impact of protists on the activity and
structure of the bacterial community in a rice field soil, Appl. Environ.
Microb., 72, 5436–5444, 2006.
Myers, R. T., Zak, D. R., White, D. C., and Peacock, A.: Landscape-level
patterns of microbial community composition and substrate use in upland
forest ecosystems, Soil Sci. Soc. Am. J., 65, 359–367, 2001.
Otten, W., Hall, D., Harris, K., Ritz, K., Young, I. M., and Gilligan, C. A.:
Soil physics, fungal epidemiology and the spread of Rhizoctonia solani, New
Phytol., 151, 459–468, 2001.
Perez, G., Decaëns, T., Dujardin, G., Akpa-Vinceslas, M., Langlois, E.,
and Chauvat, M.: Response of collembolan assemblages to plant species
successional gradient, Pedobiologia, 56, 169–177, 2013.
Pollierer, M. M., O. Ferlian, and S. Scheu.: Temporal dynamics and variation
with forest type of phospholipid fatty acids in litter and soil of temperate
forests across regions, Soil Biol. Biochem., 91, 248–257, 2015.
Pollierer, M. M., Larsen, T., Potapov, A., Brückner, A., Heethoff, M.,
Dyckmans, J., and Scheu, S.: Compound-specific isotope analysis of amino acids
as a new tool to uncover trophic chains in soil food webs, Ecol. Monogr.,
89, e01384, https://doi.org/10.1002/ecm.1384, 2019.
Potapov, A. A., Semenina, E. E., Korotkevich, A. Y., Kuznetsova, N. A., and
Tiunov, A. V.: Connecting taxonomy and ecology: Trophic niches of
collembolans as related to taxonomic identity and life forms, Soil Biol.
Biochem., 101, 20–31, 2016.
Powers, M. J., Sanabria-Valentín, E., Bowers, A. A., and Shank, E. A.:
Inhibition of cell differentiation in Bacillus subtilis by Pseudomonas
protegens, J. Bacteriol., 197, 2129–2138, 2015.
Purahong, W., Wubet, T., Lentendu, G., Schloter, M., Pecyna, M. J.,
Kapturska, D., Hofrichter, M., Krüger, D., and Buscot, F.: Life in leaf
litter: novel insights into community dynamics of bacteria and fungi during
litter decomposition, Mol. Ecol., 25, 4059–4074, 2016.
Queck, S. Y., Weitere, M., Moreno, A. M., Rice, S. A., and Kjelleberg, S.: The
role of quorum sensing mediated developmental traits in the resistance of
Serratia marcescens biofilms against protozoan grazing, Environ. Microbiol., 8,
1017–1025, 2006.
R Development Core Team: R: A language and environment for statistical
computing, R Foundation for Statistical Computing, Vienna, Austria, ISBN 3-900051-07-0, available at: http://www.R-project.org (last access: 10 August 2020), 2008.
Rillig, M. C.: Arbuscular mycorrhizae, glomalin, and soil aggregation,
Can. J. Soil Sci., 84, 355–363, 2004.
Rillig, M. C., Antonovics, J., Caruso, T., Lehmann, A., Powell, J. R.,
Veresoglou, S. D., and Verbruggen, E.: Interchange of entire communities:
microbial community coalescence, Trends Ecol. Evol., 30, 470–476, 2015.
Rønn, R., McCaig, A. E., Griffiths, B. S., and Prosser, J. I.: Impact of
protozoan grazing on bacterial community structure in soil microcosms, Appl.
Environ. Microb., 68, 6094–6105, 2002.
Rosenberg, K., Bertaux, J., Krome, K., Hartmann, A., Scheu, S., and Bonkowski,
M.: Soil amoebae rapidly change bacterial community composition in the
rhizosphere of Arabidopsis thaliana, ISME J., 3, 675–684, 2009.
Sandhya, V. and Ali, S.: Exopolysaccharide production by drought tolerant
Bacillus spp. and effect on soil aggregation under drought stress, J.
Microbiol. Biotech. Food Sci., 4, 51–57, 2014.
Scheu, S., Ruess, L., and Bonkowski, M.: Interactions between microorganisms and
soil micro-and mesofauna, in: Microorganisms in soils: roles in genesis and
functions, edited by: Varma, A. and Buscot, F., Springer, Berlin, Heidelberg,
Germany, 253–275, 2005.
Schmidt, R., Cordovez, V., De Boer, W., Raaijmakers, J., and Garbeva, P.:
Volatile affairs in microbial interactions, ISME J., 9, 2329–2335, 2015.
Serrano-Luna, J. D. J., Cervantes-Sandoval, I., Calderón, J.,
Navarro-García, F., Tsutsumi, V., and Shibayama, M.: Protease activities of
Acanthamoeba polyphaga and Acanthamoeba castellanii, Can. J. Microbiol.,
52, 16–23, 2006.
Siddiky, M. R. K., Schaller, J., Caruso, T., and Rillig, M. C.: Arbuscular
mycorrhizal fungi and collembola non-additively increase soil aggregation,
Soil Biol. Biochem., 47, 93–99, 2012.
Simon, A., Bindschedler, S., Job, D., Wick, L. Y., Filippidou, S., Kooli, W.
M., Verrecchia, E. P., and Junier, P.: Exploiting the fungal highway:
development of a novel tool for the in situ isolation of bacteria migrating
along fungal mycelium, FEMS Microbiol. Ecol., 91, fiv116, https://doi.org/10.1093/femsec/fiv116, 2015.
Swaby, R. J.: The relationship between micro-organisms and soil aggregation,
J. Gen. Microbiol., 3, 236–254, 1949.
Tecon, R. and Or, D.: Biophysical processes supporting the diversity of
microbial life in soil, FEMS Microbiol. Rev., 41, 599–623, 2017.
Thakur, M. P. and Geisen, S.: Trophic regulations of the soil microbiome,
Trends Microbiol., 27, 771–780, 2019.
Tisdall, J. M., Smith, S. E., and Rengasamy, P.: Aggregation of soil by fungal
hyphae, Soil Res., 35, 55–60, 1997.
Tisdall, J. M., Nelson, S. E., Wilkinson, K. G., Smith, S. E., and McKenzie, B.
M.: Stabilisation of soil against wind erosion by six saprotrophic fungi,
Soil Biol. Biochem., 50, 134–141, 2012.
Tiunov, A. V. and Scheu, S.: Facilitative interactions rather than resource
partitioning drive diversity-functioning relationships in laboratory fungal
communities, Ecol. Lett., 8, 618–625, 2005.
VDLUFA I, C 2.2.1: Texturanalyse des Feinbodens – Kombination von
Nasssiebung und Pipettmethode nach KÖHN, I, VDLUFA-Verlag, Darmstadt, Germany, 2012.
Velicer, G. J. and Vos, M.: Sociobiology of the myxobacteria, Annu. Rev.
Microbiol., 63, 599–623, 2009.
Wagg, C., Schlaeppi, K., Banerjee, S., Kuramae, E. E., and van der Heijden, M.
G.: Fungal-bacterial diversity and microbiome complexity predict ecosystem
functioning, Nat. Commun., 10, 1–10, 2019.
Weekers, P. H., Engelberts, A. M., and Vogels, G. D.: Bacteriolytic activities
of the free-living soil amoebae, Acanthamoeba castellanii, Acanthamoeba
polyphaga and Hartmannella vermiformis, A. Van Leeuw. J. Microb, 68,
237–243, 1995.
Wieder, W. R., Bonan, G. B., and Allison, S. D.: Global soil carbon projections
are improved by modeling microbial processes, Nat. Clim. Change., 3,
909–912, 2013.
Worrich, A., König, S., Miltner, A., Banitz, T., Centler, F., Frank, K.,
Thullner, M., Harms, H., Kästner, M., and Wick, L. Y.: Mycelium-like
networks increase bacterial dispersal, growth, and biodegradation in a model
ecosystem at various water potentials, Appl. Environ. Microb., 82,
2902–2908, 2016.
Worrich, A., Stryhanyuk, H., Musat, N., König, S., Banitz, T., Centler,
F., Frank, K., Thullner, M., Harms, H., Richnow, H.-H., Miltner, A.,
Kästner, M., and Wick, L. Y.: Mycelium-mediated transfer of water and
nutrients stimulates bacterial activity in dry and oligotrophic
environments, Nat. Commun., 8, 1–9, 2017.
Yoshikawa, S., Kuroda, Y., Ueno, H., Kajiura, M., and Ae, N.: Effect of phenolic
acids on the formation and stabilization of soil aggregates, Soil Sci. Plant
Nutr., 64, 323–334, 2018.
Yudina, A. and Kuzyakov, Y.: Saving the face of soil aggregates, Global Change
Biol., 25, 3574–3577, 2019.
Zha, W., Rubin-Pitel, S. B., and Zhao, H.: Characterization of the substrate
specificity of PhlD, a type III polyketide synthase from Pseudomonas
fluorescens, J. Biol. Chem., 281, 32036–32047, 2006.
Zheng, W. S., Morris, E. K., Lehmann, A., and Rillig, M. C.: Interplay of
soil water repellency, soil aggregation and organic carbon. A meta-analysis,
Geoderma, 283, 39–47, 2016.
Short summary
Soil aggregation is crucial for soil functioning. While the role of bacteria and fungi in soil aggregation is well established, how predators feeding on microbes modify soil aggregation has hardly been investigated. We showed for the first time that protists modify soil aggregation, presumably through changes in the production of bacterial mucilage, and that collembolans reduce soil aggregation, presumably by reducing the abundance of saprotrophic fungi.
Soil aggregation is crucial for soil functioning. While the role of bacteria and fungi in soil...
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