Article
Soil Science
Jie Chen, Bin Jia, Shu Gang, Yawen Li, Fen-Can Li, Xiao Ming Mou, Yakov Kuzyakov, Xiao Gang Li
Summary: This study compares the effects of different plant communities on soil organic carbon, nitrogen, and phosphorus mineralization in an alpine meadow. The results show that under shrubs, the rates of nitrogen and phosphorus mineralization in soil are significantly higher, while the increase in organic carbon mineralization is smaller. Furthermore, the decoupling of organic carbon and nutrient mineralization is driven by microbial stoichiometry.
BIOLOGY AND FERTILITY OF SOILS
(2022)
Article
Soil Science
P. M. Schleuss, M. Widdig, L. A. Biederman, E. T. Borer, M. J. Crawley, K. P. Kirkman, E. W. Seabloom, P. D. Wragg, M. Spohn
Summary: The addition of nitrogen and phosphorus changes the C:N ratio of dissolved organic matter, but not of soil microbial biomass. Nitrogen addition decreases non-symbiotic N-2 fixation and increases microbial N release, while phosphorus addition has minimal effects. Changes in substrate stoichiometry drive alterations in microbial N acquisition and release in grassland ecosystems.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Ecology
Priscilla Le Mezo, Jerome Guiet, Kim Scherrer, Daniele Bianchi, Eric Galbraith
Summary: This study quantifies the cycling of nitrogen, phosphorus, and iron in the global ocean by commercially targeted marine fish, and assesses the impact of fishing activity on this cycling.
Article
Ecology
Dedmer B. van de Waal, Lauren A. White, Rebecca Everett, Lale Asik, Elizabeth T. Borer, Thijs Frenken, Angelica L. Gonzalez, Rachel Paseka, Eric W. Seabloom, Alexander T. Strauss, Angela Peace
Summary: Hosts' nutrient availability affects pathogen transmission and host immunity, with nutrient loads potentially promoting pathogen reproduction but also being used for defense against pathogens.
Article
Ecology
Patrick K. Thomas, Charlotte Kunze, Dedmer B. Van de Waal, Helmut Hillebrand, Maren Striebel
Summary: Primary consumers in aquatic ecosystems are limited by the quality of their food, with significant negative effects on zooplankton performance. Nutrient co-limitation is strong in zooplankton, and the effects of essential fatty acid limitation depend on phosphorus availability. Indirect effects induced by phosphorus limitation exceed direct effects of mineral phosphorus limitation. The effects of nutrient amendments using laboratory phytoplankton isolates exceed those using natural field communities.
Article
Environmental Sciences
Dandan Gao, Shuguang Liu, Fei Gao, Chen Ning, Xiaohong Wu, Wende Yan, Andy Smith
Summary: This study investigates the impact of forest restoration on soil physio-chemical properties and the structure and function of soil micro-food web. The findings suggest that forest restoration increases soil organic carbon and total nitrogen, as well as the abundance of soil microorganisms. The availability of soil resources plays a crucial role in regulating the composition, structure, and stability of soil food webs. Nutrient limitation, particularly phosphorus limitation, is an important factor in determining the stability of soil food webs during forest restoration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Geosciences, Multidisciplinary
Yang Xiang, Paul D. Quay, Rolf E. Sonnerup, Andrea J. Fassbender
Summary: The study finds that in the North Pacific and North Atlantic subtropical gyres, deep phosphate contributes about 60% of the total phosphorus supply. Dissolved organic matter and zooplankton excretion are important pathways for phosphorous export at these sites.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Soil Science
Petr Capek, Michal Choma, Karolina Tahovska, Jiri Kana, Jiri Kopacek, Hana Santruckova
Summary: Our study found that the capability of microbial community to reduce its demand for external nutrients is responsible for the difference between the predictions and observations. The active part of microbial community instantly recycled N from decaying part of microbial community and very likely utilized internal P sources (i.e. polyphosphates). The results suggest that N recycling from dead microbial biomass and the internal microbial P sources warrant further investigation.
Article
Plant Sciences
Zhiwei Yan, Qiuyue Wang, Yang Li, Ling Wu, Junnan Wang, Bin Xing, Dan Yu, Ligong Wang, Chunhua Liu
Summary: Global warming and eutrophication have negative impacts on freshwater ecosystems by inhibiting the growth of submerged plants, which may lead to decreased stability of freshwater ecosystems in winter and spring. More research is needed to further understand the combined effects on water quality and growth characteristics of submerged plants.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Ecology
C. Kevin Boyce
Summary: The evolution of herbivory in deep time is constrained by various factors, including nutrient stoichiometry. Smaller herbivores can selectively consume nutrients within plant cells, while larger vertebrates lack this selectivity.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Agronomy
Wenqi He, Hongyan Liu, Liang Shi, Mei Zhou, Yang Qi, Feng Liu, Xinrong Zhu, Pengwu Zhao, Changlin Xiang, Yang Shu
Summary: The accumulation of nutrient elements and changes in ecological stoichiometry in Larix sibirica were influenced by climate and soil factors. Decreasing mean annual precipitation resulted in an increase in nitrogen and phosphorus contents, a decrease in C:N and C:P ratios in leaves, and a decrease in C:N ratio in branches. Branch stoichiometry showed a stronger response than leaf stoichiometry.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Ecology
Robert W. Buchkowski, Carlos Barreto, Zoe Lindo
Summary: Soil food web models calculate carbon and nitrogen fluxes between soil organisms and estimate their impact on ecosystem processes. The R package soilfoodwebs is presented as an open-source tool that includes features such as dietary balance, uncertainty estimation, and conversion to simulations. The package shows strength in calculating fluxes and contributions of individual taxa, but more information on population regulation is needed for accurate trend prediction.
EUROPEAN JOURNAL OF SOIL BIOLOGY
(2023)
Article
Ecology
Caleb J. J. Robbins, David W. P. Manning, Halvor M. M. Halvorson, Beth C. C. Norman, Rebecca A. A. Eckert, Ada Pastor, Allyn K. K. Dodd, Jeremy Jabiol, Elliot Bastias, Alice Gossiaux, Andrew S. S. Mehring
Summary: Decomposing organic matter is a vital resource for aquatic ecosystems, providing fuel for their biogeochemical function and secondary production. However, the dynamics of detrital nitrogen (N) and phosphorus (P) in aquatic ecosystems have been less explored compared to terrestrial ecosystems, despite their fundamental connection with microbial processes and ecosystem function. This study synthesized published time series data from stream ecosystems to analyze the nutrient dynamics of decomposing litter. The results showed that detritus contributed as a net source of N to the environment, regardless of the initial N content. On the other hand, the sink/source dynamics of P were more influenced by the initial P content, shifting from P sinks to net P mineralization after a certain level of mass loss. However, variations in N and P predictions indicated the importance of nonmicrobial factors such as invertebrate fragmentation. Overall, this analysis helps to bridge the gap between organic matter decomposition in aquatic and terrestrial ecosystems and provides insights for future research on detrital nutrient dynamics.
Article
Multidisciplinary Sciences
Samuel G. Woodman, Sacha Khoury, Ronald E. Fournier, Erik J. S. Emilson, John M. Gunn, James A. Rusak, Andrew J. Tanentzap
Summary: Defoliating insects disrupt boreal catchments by redistributing carbon and nitrogen from forests to lakes, altering biogeochemical cycles significantly. DOC reductions and DIN increases in lake waters due to insect outbreaks exceed between-year trends, indicating the importance of these outbreaks in driving biogeochemical cycles in forest catchments.
NATURE COMMUNICATIONS
(2021)
Article
Limnology
Phillip M. Bumpers, Amy D. Rosemond, David W. P. Manning, John S. Kominoski, Jonathan P. Benstead, Lee M. Demi
Summary: Streams store nutrients in organic matter (OM) stocks, but nutrient enrichment can reduce the storage of detritus-associated nutrients. A study tested the effects of nutrient-loading on nitrogen (N) and phosphorus (P) storage in different types of organic matter in forest streams. The results showed that enrichment increased nutrient content in all organic matter types, but reduced storage in fine benthic organic matter (FBOM) and leaves. The changes in nutrient storage have implications for downstream processes and consumer dynamics.
LIMNOLOGY AND OCEANOGRAPHY
(2023)
Article
Ecology
Sebastien M. J. Portalier, Mehdi Cherif, Lai Zhang, Gregor F. Fussmann, Michel Loreau
ECOLOGICAL MODELLING
(2016)
Article
Multidisciplinary Sciences
Mehdi Cherif, Monica Granados, Sean Duffy, Pauline Robert, Berangere Pequin, Vani Mohit, Christopher W. McKindsey, Philippe Archambault, Bruno Myrand, Connie Lovejoy, Rejean Tremblay, Stephane Plourde, Gregor F. Fussmann
Review
Biodiversity Conservation
Irena F. Creed, Ann-Kristin Bergstrom, Charles G. Trick, Nancy B. Grimm, Dag O. Hessen, Jan Karlsson, Karen A. Kidd, Emma Kritzberg, Diane M. McKnight, Erika C. Freeman, Oscar E. Senar, Agneta Andersson, Jenny Ask, Martin Berggren, Mehdi Cherif, Reiner Giesler, Erin R. Hotchkiss, Pirkko Kortelainen, Monica M. Palta, Tobias Vrede, Gesa A. Weyhenmeyer
GLOBAL CHANGE BIOLOGY
(2018)
Article
Ecology
Mehdi Cherif, Michel Loreau
Article
Entomology
Daniel B. Metcalfe, Mehdi Cherif, Jane U. Jepsen, Ole Petter L. Vindstad, Jeppe A. Kristensen, Ulrika Belsing
ECOLOGICAL ENTOMOLOGY
(2019)
Article
Ecology
Sebastien M. J. Portalier, Gregor F. Fussmann, Michel Loreau, Mehdi Cherif
FUNCTIONAL ECOLOGY
(2019)
Article
Ecology
Judith Sitters, Mehdi Cherif, Dagmar Egelkraut, Reiner Giesler, Johan Olofsson
FUNCTIONAL ECOLOGY
(2019)
Review
Marine & Freshwater Biology
Russell N. Arnott, Mehdi Cherif, Lee D. Bryant, Danielle J. Wain
Summary: This review provided an overview of artificial turbulence generation methods and quantification techniques used in phytoplankton-turbulence laboratory experiments. Most experiments feature quantification of turbulence, with turbulent dissipation rates recommended for consistency with physical oceanographic and limnological observations. Dinoflagellates were the primary phytoplankton group studied due to their propensity for forming harmful algal blooms and sensitivity to turbulence.
Article
Ecology
Sebastien M. J. Portalier, Gregor F. Fussmann, Michel Loreau, Mehdi Cherif
Summary: This article discusses the derivation methods of functional response, advocating the use of physics-based approaches to validate hypotheses and provide insights into predator-prey relationships. It highlights the importance of considering physical factors that constrain the movement of predators and prey in understanding functional response.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Ecology
Junwen Guo, Sonia Brugel, Agneta Andersson, Mehdi Cherif
Summary: In aquatic ecosystems, dissolved organic nitrogen (DON) and dissolved inorganic nitrogen (DIN) are the two major forms of nitrogen available at the base of the planktonic food web. The association or dissociation of carbon and nitrogen inputs can have significant effects on all trophic levels, particularly on the interaction between bacteria and phytoplankton.
AQUATIC MICROBIAL ECOLOGY
(2022)
Article
Ecology
J. Guo, M. Cherif
Summary: The mineralization of nitrogen by bacteria in aquatic ecosystems is crucial, but quantifying these processes can be complex. Using experimental data and a stoichiometric model, we demonstrate how quantification can be improved by measuring the actual consumption carbon:nitrogen ratio. Our findings indicate that the estimation of ammonium regeneration rates can be enhanced, particularly for mixed substrates with dissociated C and N molecules.
Article
Environmental Sciences
Mehdi Cherif, Russell N. N. Arnott, Danielle J. J. Wain, Lee D. D. Bryant, Henrik Larsson, Emily I. I. Slavin
Summary: A mesocosm experiment was conducted to investigate the response of a natural phytoplankton community to climate change-induced changes in water column stability and mixing. Results showed that the biological response of phytoplankton groups to different turbulence scenarios did not conform to the usual expectations.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Ecology
Judith Sitters, Mariska te Beest, Mehdi Cherif, Reiner Giesler, Johan Olofsson
Article
Environmental Sciences
Mehdi Cherif, Carolyn Faithfull, Junwen Guo, Cedric L. Meunier, Judith Sitters, Wojciech Uszko, Francisco Rivera Vasconcelos
FRONTIERS IN MARINE SCIENCE
(2017)