Article
Geography, Physical
Majed N. Turkistani, Eduard G. Reinhardt, David A. Kynaston, Janok P. Bhattacharya
Summary: This study investigates the associations between ancient deltaic environments and foram-iniferal and testate amoebae assemblages and finds clear relationships between test morphology and depositional environment.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Environmental Sciences
Jean Claude Ndayishimiye, Tian Lin, Pascaline Nyirabuhoro, Gan Zhang, Wenjing Zhang, Yuri Mazei, Hossein Ganjidoust, Jun Yang
Summary: This study focused on examining the impact of human activities on chemical pollutants influx and environmental transformations in a large subtropical reservoir in south China. The research used a multi-proxy approach based on sediment core analysis and found that the development of the reservoir experienced two distinct stages, influenced by both anthropogenic sources and climatic factors. The study highlighted the significant relationship between testate amoebae community dynamics and environmental conditions, indicating a stronger impact of human disturbance on the ecosystem compared to natural environmental changes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Ruben Gonzalez-Miguens, Milcho Todorov, Quentin Blandenier, Clement Duckert, Alfredo L. Porfirio-Sousa, Giulia M. Ribeiro, Diana Ramos, Daniel J. G. Lahr, David Buckley, Enrique Lara
Summary: In this study, the authors used Arcellinida testate amoebae as a model to test the paradigm of morphological stasis in protists. The results showed a lack of conservatism in shell outlines and widespread morphological convergences between far-related taxa. In addition, the authors revised the systematics and established a new infraorder and two new genera.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2022)
Article
Environmental Sciences
M. A. Davies, J. W. McLaughlin, M. S. Packalen, S. A. Finkelstein
Summary: Wetlands are the largest natural source of methane, yet the roles of source region and paleoclimate in explaining the variability in Holocene atmospheric methane concentrations remain poorly constrained. The study on Hudson Bay Lowlands (HBL) shows that total methane flux is closely related to the increasing area of land emerging from below sea level in the Middle Holocene, and due to lower evapotranspiration in a wetter and cooler climate in the Late Holocene, methane fluxes remained high.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Biodiversity Conservation
Thomas G. Sim, Graeme T. Swindles, Paul J. Morris, Andy J. Baird, Dan J. Charman, Matthew J. Amesbury, Dave Beilman, Alex Channon, Angela V. Gallego-Sala
Summary: This study utilized new transfer functions to reconstruct water-table depth (WTD) and pH in Svalbard peatlands, enabling a greater understanding of the long-term impact of climate change on these ecosystems.
ECOLOGICAL INDICATORS
(2021)
Article
Paleontology
Nawaf A. Nasser, Braden R. B. Gregory, David Singer, R. Timothy Patterson, Helen M. Roe
Summary: Testate lobose amoebae of the order Arcellinida are a diverse group of shelled protists found in various environments. The family Difflugidae includes many species and subspecies, with molecular evidence suggesting that test morphology is more important in categorizing distinct taxa than test composition. The reclassification of Difflugia bidens as the type species of genus Erugomicula highlights the importance of test morphology in taxonomy.
PALAEONTOLOGIA ELECTRONICA
(2021)
Article
Biodiversity Conservation
Rafael Carballeira, Xabier Pontevedra-Pombal
Summary: Testate amoebae are important bioindicators of Sphagnum peatland ecosystems, which are threatened wetland types with a delicate biogeochemical balance. A study on chemical parameters and testate amoebae diversity in the western Iberian Peninsula revealed an inverse relationship between diversity and conservation status, influenced by anthropogenic activities and geographical patterns of disturbance.
Article
Environmental Sciences
Catharina Ludolphy, Uwe Kierdorf, Horst Kierdorf
Summary: The study analyzed lead content in antlers of 90 European roe bucks culled in an agricultural-dominated hunting district in Lower Saxony, Northern Germany between 1901 and 2019. The findings suggest that lead levels in antlers varied over time, with high values potentially coming from past lead gasoline pollution, which could be linked to gasoline additives, traffic, or agricultural sources.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Multidisciplinary Sciences
Anamaria S. Diniz, Silvano L. N. Filho, Watson A. Gama, Ariadne N. Moura
Summary: This study evaluated the effects of temporal and vertical variation of the water column on phytoplankton and zooplankton dynamics in two tropical reservoirs in Northeastern Brazil. The results showed that nitrogen directly influenced phytoplankton, and Calanoida copepods demonstrated the ability to adapt to different trophic conditions and phytoplankton compositions.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2022)
Article
Multidisciplinary Sciences
Gang Zhao, Julian Merder, Tristan C. Ballard, Anna M. Michalak
Summary: Climate change, especially changes in precipitation and temperature, can affect the transformation and delivery of nitrogen. The study shows that rising temperatures may offset the expected impacts of increased precipitation on nitrogen runoff.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Biodiversity Conservation
Jiujin Xiao, Yulong Wang, Shuhui Fu, Shaoping Yang, Guanghua Liu, Xiaoyu Luo, Cong Zhang
Summary: This study investigated heavy metal concentrations in various media of the Jiang'an River in Chengdu city, China, and identified potential bioindicators and hyperaccumulators. The results showed that heavy metals migrated in the water-sediment-benthic-plant system, providing a theoretical foundation for river monitoring and administration in Chengdu city and Sichuan Province.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Attila I. Engloner, Kitti Nemeth, Mihaly Ovari
Summary: This study shows that the accumulation of macro- and trace elements in Ceratophyllum demersum is influenced by seasonality, vertical position of the plant material, and biofilm cover. Element concentrations in the plant can drop significantly by the end of summer, with certain elements being much higher in the lower parts of the plant and in plants with a well-developed biofilm compared to those without biofilm. These findings are important for phytoremediation and future biomonitoring studies, emphasizing the importance of considering the month of study, plant parts harvested, and biofilm cover when calculating element accumulation or removal in contaminated waters.
ENVIRONMENTAL POLLUTION
(2022)
Article
Green & Sustainable Science & Technology
Lorenzo Braga, Elisa Furia, Fabrizio Buldrini, Anna Maria Mercuri
Summary: An integrated approach combining floristic and palynological studies was conducted to assess the environment of the Laghi di Mantova e Polo Chimico, a site of national interest, for monitoring polluted areas. The flora and pollen of highly contaminated sectors were surveyed and compared with a control sector. The results showed similarities in flora composition and higher incidence of abnormal pollen in the contaminated sectors, indicating the detectability of anthropogenic impact on vegetation at both macroscopic and microscopic levels. The presence of a protected species in the control sector is noteworthy for conservation efforts.
Article
Environmental Sciences
Yuanyun Gao, Shuntian Wang, Chengxin Zhang, Chengzhi Xing, Wei Tan, Hongyu Wu, Xinhan Niu, Cheng Liu
Summary: Optimizing urban form through planning and management can improve air quality and control NO2 pollution. This study assesses the interactions between urban forms and airborne NO2 pollution in different cities in the Yangtze River Delta region of China using machine learning and geographical regression models. The results show a strong correlation between urban fragmentation and NO2 pollution, highlighting the importance of customized urban landscape management strategies for mitigating air pollution.
ENVIRONMENTAL POLLUTION
(2023)
Review
Environmental Sciences
Paulien Verscheure, Olivier Honnay, Niko Speybroeck, Robin Daelemans, Nicolas Bruffaerts, Brecht Devleesschauwer, Tobias Ceulemans, Laura Van Gerven, Raf Aerts, Rik Schrijvers
Summary: The increase in allergies to aeroallergens is attributed to interactions with environmental and lifestyle changes, with environmental nitrogen pollution potentially being a key driver. While the ecological impact of nitrogen pollution is well understood, its indirect effect on allergies in humans is not well documented. This literature review focuses on the impact of nitrogen pollution on plant communities, plant productivity, and pollen properties, and how these changes contribute to allergy burden. The majority of studies have examined the impact of atmospheric nitrogen pollution on pollen and allergens, leading to allergy symptoms, but limited research has been conducted on the impact of soil and aqueous nitrogen pollution on pollen allergenic reactivity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Plant Sciences
Anna Sytiuk, Regis Cereghino, Samuel Hamard, Frederic Delarue, Amelie Guittet, Janna M. Barel, Ellen Dorrepaal, Martin Kuttim, Mariusz Lamentowicz, Bertrand Pourrut, Bjorn J. M. Robroek, Eeva-Stiina Tuittila, Vincent E. J. Jassey
Summary: The study highlights that Sphagnum metabolites are more likely to influence peatland microbial food web structure and functioning than Sphagnum anatomical and morphological traits. Through structural equation modeling and phylogenetic distance analyses, it was found that Sphagnum traits play an important role in shaping microbial community composition and functioning.
JOURNAL OF ECOLOGY
(2022)
Article
Engineering, Environmental
Mathieu Leroy, Benjamin Pey, Vincent E. J. Jassey, Clarisse Line, Arnaud Elger, Anne Probst, Emmanuel Flahaut, Jerome Silvestre, Camille Larue
Summary: This study found that the interaction between carbon nanotubes (CNTs) and metals in agricultural soils can affect lettuce, resulting in biomass loss and increased flavonoid concentration. Furthermore, the addition of CNTs increased body elemental transfer in earthworms in soils with higher organic matter content.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Multidisciplinary Sciences
Thomas Ruiz, Jean-Francois Carrias, Camille Bonhomme, Vinicius F. Farjalla, Vincent E. J. Jassey, Josephine Leflaive, Arthur Compin, Celine Leroy, Bruno Corbara, Diane S. Srivastava, Regis Cereghino
Summary: The predicted increase in the intensity and frequency of drought events due to global climate change will have severe impacts on freshwater ecosystems, altering their structure and function. Despite the extensive research on the direct response of freshwater communities to drought, little is known about their post-drought recovery capacities, which are crucial for ecosystem resilience. This study used tank bromeliads as a model ecosystem to simulate droughts of different durations and evaluate the recovery capacities of ecosystem structure and function. The results show that drought significantly affects the trophic structure of macroinvertebrates by reducing the predator-prey biomass ratio. The asynchrony in the recovery of predator and prey biomass appears to be a critical factor driving the post-drought recovery trajectory of trophic structure. Additionally, the litter decomposition rate, an essential ecosystem function, remains stable after drought events, indicating compensatory effects between detritivores biomass and detritivores feeding activity. In conclusion, the asynchrony in post-drought recovery of different trophic levels may have more complex impacts on the overall drought resilience of small freshwater ecosystems than previously expected.
SCIENTIFIC REPORTS
(2022)
Article
Soil Science
Robert W. Buchkowski, Janna M. Barel, Vincent E. J. Jassey, Zoe Lindo
Summary: Cannibalism has a limited impact on the efficiency of trophic transfer in food webs. A Lotka-Volterra model was used to determine the maximum proportion of diet that can come from cannibalism. The study found that cannibalism cannot exceed 20% of most organisms' diet, but predators may prefer cannibalism due to rare encounters with conspecifics. Cannibalism has positive effects on carbon and nitrogen mineralization in soil food webs.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Microbiology
Bryan T. Piatkowski, Dana L. Carper, Alyssa A. Carrell, I-Min A. Chen, Alicia Clum, Chris Daum, Emiley A. Eloe-Fadrosh, Daniel Gilbert, Gustaf Granath, Marcel Huntemann, Sara S. Jawdy, Ingeborg Jenneken Klarenberg, Joel E. Kostka, Nikos C. Kyrpides, Travis J. Lawrence, Supratim Mukherjee, Mats B. Nilsson, Krishnaveni Palaniappan, Dale A. Pelletier, Christa Pennacchio, T. B. K. Reddy, Simon Roux, A. Jonathan Shaw, Denis Warshan, Tatjana Zivkovic, David J. Weston
Summary: This study presents 49 metagenome assemblies of the microbiome associated with Sphagnum (peat moss) collected from various temperature conditions across Europe. These data will facilitate further research on the impact of climate change on plant-microbe symbiosis, ecology, and ecosystem functioning in northern peatland ecosystems.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2022)
Article
Ecology
Alexandre Lhosmot, Adrien Jacotot, Marc Steinmann, Philippe Binet, Marie-Laure Toussaint, Sebastien Gogo, Daniel Gilbert, Sarah Coffinet, Fatima Laggoun-Deffarge, Guillaume Bertrand
Summary: This study investigates the variability of methane fluxes in a temperate mid-altitude Sphagnum-dominated peatland. The results show that water table and temperature variations at the seasonal and interannual scale have a significant impact on methane flux. The diurnal patterns indicate higher methane flux at night and lower flux at midday, with the influence of photosynthesis and physical parameters. This study emphasizes the importance of considering diurnal variations and vegetation effects before upscaling methane flux to longer time scales.
Article
Plant Sciences
Anna Sytiuk, Samuel Hamard, Regis Cereghino, Ellen Dorrepaal, Honorine Geissel, Martin Kuttim, Mariusz Lamentowicz, Eeva Stiina Tuittila, Vincent E. J. Jassey
Summary: In this study, a reciprocal transplant experiment was conducted along a climate gradient in Europe to investigate the effects of climate warming on the seasonality of metabolites produced by Sphagnum mosses and the consequences for peatland carbon uptake. The results showed that Sphagnum species exhibited consistent responses to warming, with shifts in their primary or secondary metabolites according to seasons. These shifts were also correlated with changes in gross ecosystem productivity, particularly in spring and autumn. The findings highlight the plasticity of plant metabolites and their ability to impact carbon processes in ecosystems.
Article
Soil Science
Lise Pinault, Malo Pilloix, Gregory Bernard, Daniel Joly, Sebastien Gogo, Elsa Martin, Daniel Gilbert
Summary: 50% of European peatlands are damaged, and restoring their hydrological functionality is crucial to reduce greenhouse gas emissions. However, current knowledge about French peatlands and carbon stocks is insufficient, highlighting the need for a recent inventory based on local data aggregation and validation of the 1949 Atlas.
SOIL USE AND MANAGEMENT
(2023)
Article
Economics
Christian At, Daniel Gilbert, Lionel Thomas
Summary: This paper examines the optimal subsidy for organic conversion given by regulators to farmers facing adverse selection. It takes into account farmers' private information about their intrinsic motivation for organic farming. The study finds that the optimal subsidy remains constant within the range of farmers' revenue. As the profit gap between organic and traditional farming narrows, the optimal subsidy should decrease. While promoting organic farming to enhance societal acceptability positively impacts the proportion of land conversion, the promotion of both organic farming among farmers and the demand for organic products may have ambiguous effects leading to a decrease in the number of conversions.
REVUE D ECONOMIE POLITIQUE
(2023)
Article
Ecology
Vincent E. J. Jassey, Owen L. Petchey, Philippe Binet, Alexandre Buttler, Genevieve Chiapusio, Fatima Laggoun-Delarue, Daniel Gilbert, Frederic Delarue, Fatima Laggoun-Defarge, Edward A. D. Mitchell, Janna M. Barel
Summary: Soil microbial communities play a crucial role in ecosystem processes and services, especially through their food webs. However, the impact of food web structure on ecosystem functioning is not well understood. In this study, the relationships between different aspects of microbial food web structure and ecosystem functions were investigated in a peatland. The results showed that trophic interactions and increasing connectance, biomass, and energy fluxes played a significant role in enhancing ecosystem functions. These findings highlight the importance of considering food web structure and energy flows in understanding biodiversity-ecosystem functioning relationships.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2023)
Article
Biodiversity Conservation
Alexandre Buttler, Luca Bragazza, Fatima Laggoun-Defarge, Sebastien Gogo, Marie-Laure Toussaint, Mariusz Lamentowicz, Bogdan H. H. Chojnicki, Michal Slowinski, Sandra Slowinska, Malgorzata Zielinska, Monika Reczuga, Jan Barabach, Katarzyna Marcisz, Lukasz Lamentowicz, Kamila Harenda, Elena Lapshina, Daniel Gilbert, Rodolphe Schlaepfer, Vincent E. J. Jassey
Summary: Changes in water table and temperature have significant effects on peatland vegetation, with a decrease in Sphagnum mosses and an increase in vascular plants as the water table lowers and temperatures rise. Experimental results show that water table changes have a greater impact on vegetation compared to warming temperatures.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Soil Science
Janna M. Barel, Owen L. Petchey, Abir Ghaffouli, Vincent E. J. Jassey
Summary: Microbial trophic interactions are important for understanding ecosystem functioning, but observing predation is challenging. This study demonstrates that machine learning algorithms can successfully predict microbial feeding links based on species traits and taxonomy. The model trained with the boosted regression trees algorithm performed best in predicting feeding links, and the predictions were robust against faulty predictors and new taxa. By combining traditional observations and DNA-based sampling strategies, machine learning can help study microbial food webs and soil biodiversity along ecological gradients.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Engineering, Environmental
Hugo Sentenac, Adeline Loyau, Luca Zoccarato, Vincent E. J. Jassey, Hans-Peter Grossart, Dirk S. Schmeller
Summary: Mountain lakes, which provide clean drinking water to humans, are strongly affected by global change. Benthic biofilms play a crucial role in maintaining water quality, but little is known about the effects of global change on mountain biofilm communities. By analyzing metabarcoding data and climatic and environmental data, this study reveals significant shifts in the composition and decline in biodiversity of prokaryotic and micro-eukaryotic biofilm communities in Pyrenean lakes from 2016 to 2020.
Article
Multidisciplinary Sciences
Tom W. N. Walker, Franziska Schrodt, Pierre-Marie Allard, Emmanuel Defossez, Vincent E. J. Jassey, Meredith C. Schuman, Jake M. Alexander, Oliver Baines, Virginie Baldy, Richard D. Bardgett, Pol Capdevila, Phyllis D. Coley, Nicole M. van Dam, Bruno David, Patrice Descombes, Maria-Jose Endara, Catherine Fernandez, Dale Forrister, Albert Gargallo-Garriga, Gaetan Glauser, Sue Marr, Steffen Neumann, Loic Pellissier, Kristian Peters, Sergio Rasmann, Ute Roessner, Roberto Salguero-Gomez, Jordi Sardans, Wolfram Weckwerth, Jean-Luc Wolfender, Josep Penuelas
Summary: The metabolome, which forms the biochemical basis of plant form and function, shows macroecological variation across the plant kingdom. Using the plant functional trait concept, this study reveals that plants vary on two major axes of leaf metabolic specialization. The metabolome expands the functional trait concept by providing additional axes of metabolic specialization for examining plant form and function.
Article
Soil Science
C. Beraud, F. Piola, J. Gervaix, G. Meiffren, C. Creuze des Chatelliers, A. Delort, C. Boisselet, S. Poussineau, E. Lacroix, A. A. M. Cantarel
Summary: This study investigated the soil factors influencing the development of biological denitrification inhibition (BDI) and found that initial soil moisture, ammonium concentration, and the initial abundance of certain microbial genes play significant roles in BDI development. Additionally, the research highlighted the relevance of biotic factors in explaining BDI and proposed the use of procyanidin concentration from plant belowground system as a new proxy for measuring BDI intensity.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Yizhu Qiao, Tingting Wang, Qiwei Huang, Hanyue Guo, He Zhang, Qicheng Xu, Qirong Shen, Ning Ling
Summary: Soil microbial community coalescence, the mixing and interaction of microbial communities, has been found to enhance the stability and complexity of rhizobacterial networks, leading to improved plant health and biomass. This study investigated the effects of different degrees of bacterial community coalescence on plant disease resistance by mixing soils from healthy and diseased habitats for watermelon planting. The results showed that mixing in more healthy soil reduced the plant disease index and increased biomass by improving the stability and complexity of the rhizobacterial network. Core taxa Nitrospirillum and Singulisphaera were enriched in the rhizosphere from healthy soils and played important roles in disease suppression and regulating the positive cohesion and modularity of the networks. Overall, these findings provide insights into the potential mechanism of microbial community coalescence for improving plant microbial community function and suggest new tools for enhancing plant fitness via soil microbiota mixing.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Mengqiu He, Shending Chen, Lei Meng, Xiaoqian Dan, Wenjie Wang, Qinying Zhu, Zucong Cai, Jinbo Zhang, Pierfrancesco Nardi, Christoph Mueller
Summary: Maize genotypes directly affect gene expression and nitrogen uptake capacity. The feedback between maize genotypes and soil nitrogen transformations, as well as their regulations on nitrogen uptake capacity, have been studied. The findings suggest that maize genotypes play a central role in regulating these feedbacks, which are important for maize breeding and enhancing maize production.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Ke Shi, Jiahui Liao, Xiaoming Zou, Han Y. H. Chen, Manuel Delgado-Baquerizo, Zhengming Yan, Tingting Ren, Honghua Ruan
Summary: Through rewilding, microbial extracellular and cellular residues can continuously accumulate in soils and significantly contribute to soil organic carbon sequestration. Extracellular residues are mainly driven by fine root biomass, while cellular residues are mainly driven by soil nitrogen and organic carbon content.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Sensen Chen, Ying Teng, Yongming Luo, Eiko Kuramae, Wenjie Ren
Summary: This study comprehensively assesses the effects of NMs on the soil microbiome through a global meta-analysis. The results reveal significant negative impacts of NMs on soil microbial diversity, biomass, activity, and function. Metal NMs, especially Ag NMs, have the most pronounced negative effects on various soil microbial community metrics.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Shareen K. D. Sanders, Gerard Martinez-De Leon, Ludovico Formenti, Madhav P. Thakur
Summary: Collembolans, the diverse group of soil invertebrates, are affected by anthropogenic climate warming, which alters their diversity and density. In addition to abiotic stressors, changes in food availability, specifically the abundance of saprotrophic and mycorrhizal fungi, influence Collembola responses to climate warming. Collembolans prefer saprotrophic fungi but rely on mycorrhizal fungi when food sources are scarce. Understanding the mechanisms behind these dietary shifts in warm-dry and warm-wet soil conditions is crucial for predicting the impact of climate change on Collembola-fungal interactions.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Wimonsiri Pingthaisong, Sergey Blagodatsky, Patma Vityakon, Georg Cadisch
Summary: A study found that mixing high-C/N ratio rice straw with low-C/N ratio groundnut stover can improve the chemical composition of the input, stimulate microbial growth, decrease the loss of residue-derived carbon in the soil, and reduce native soil carbon and nitrogen consumption.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Jiachen Wang, Jie Zhao, Rong Yang, Xin Liu, Xuyuan Zhang, Wei Zhang, Xiaoyong Chen, Wende Yan, Kelin Wang
Summary: Nitrogen is vital for ecosystem productivity, restoration, and succession processes. This study found that legume intercropping was more effective than chemical nitrogen fertilizers in promoting the complexity and stability of the soil micro-food web, as it increased microbial and nematode communities and enhanced energy flow patterns.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
