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2 results on '"Catalan Forest Inventory"'

1. Connecting the Green and Brown Worlds: Allometric and Stoichiometric Predictability of Above- and Below-Ground Networks.

Author

Mulder, Christian, Ahrestani, Farshid S., Bahn, Michael, Bohan, David A., Bonkowski, Michael, Griffiths, Bryan S., Guicharnaud, Rannveig Anna, Kattge, Jens, Krogh, Paul Henning, Lavorel, Sandra, Lewis, Owen T., Mancinelli, Giorgio, Naeem, Shahid, Peñuelas, Josep, Poorter, Hendrik, Reich, Peter B., Rossi, Loreto, Rusch, Graciela M., Sardans, Jordi, and Wright, Ian J.

Subjects
*ALLOMETRIC equations, *STOICHIOMETRY, *PARTICLE size distribution, *PLANT species, *PLANT diversity, *PLANT ecology, *NITROGEN isotopes
Abstract

Abstract: We examine the potential of trait-based parameters of taxa for linking above- and below-ground ecological networks (hereafter ‘green’ and ‘brown’ worlds) to understand and predict community dynamics. This synthesis considers carbon, nitrogen and phosphorus-related traits, the abundance of component species and their size distribution across trophic levels under different forms of management. We have analysed existing and novel databases on plants, microbes and invertebrates that combine physico-chemical and biological information from (agro)ecosystems spanning the globe. We found (1) evidence that traits from above- and below-ground systems may be integrated in the same model and (2) a much greater than expected stoichiometric plasticity of plants and microbes which has implications for the entire food-web mass–abundance scaling. Nitrogen and phosphorus are primary basal resources (hence, drivers) and more retranslocation of P than of N from leaves will lead to higher N:P in the litter and soil organic matter. Thus, under nutrient-rich conditions, higher foliar concentrations of N and P are reflected by lower N:P in the brown litter, suggesting less P retranslocated than N. This apparent stoichiometric dichotomy between green and brown could result in shifts in threshold elemental ratios critical for ecosystem functioning. It has important implications for a general food-web model, given that resource C:N:P ratios are generally assumed to reflect environmental C:N:P ratios. We also provide the first evidence for large-scale allometric changes according to the stoichiometry of agroecosystems. Finally, we discuss insights that can be gained from integrating carbon and nitrogen isotope data into trait-based approaches, and address the origin of changes in Δ13C and Δ15N fractionation values in relation to consumer–resource body-mass ratios. [Copyright &y& Elsevier]

Published
2013
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2. Connecting the Green and Brown Worlds: Allometric and Stoichiometric Predictability of Above- and Below-Ground Networks

Author

Mulder, Christian, Ahrestani, Farshid S., Bahn, Michael, Bohan, David, Bonkowski, Michael, Griffiths, Bryan S., Guicharnaud, Rannveig Anna, Kattge, Jens, Krogh, Paul Henning, Lavorel, Sandra, Lewis, Owen T., Mancinelli, Giorgio, Naeem, Shahid, Penuelas, Josep, Poorter, Hendrik, Reich, Peter B., Rossi, Loreto, Rusch, Graciela M., Sardans, Jordi, Wright, Ian J., Woodward, G., Bohan, D. A., C., Mulder, F. S., Ahrestani, M., Bahn, D. A., Bohan, M., Bonkowski, B. S., Griffithsk, R. A., Guicharnaud, J., Kattge, P., Henning Krogh, S., Lavorel, O. T., Lewi, Mancinelli, Giorgio, S., Naeem, J., Peñuela, H., Poorter, P. B., Reich, L., Rossi, G. M., Rusch, J., Sardan, I. J., Wright, National Institute for Public Health and the Environment [Bilthoven] (RIVM), Pennsylvania State University (Penn State), Penn State System, University of Innsbruck, Agroécologie [Dijon], Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, University of Cologne, Scotland's Rural College (SRUC), Commission of the European Communities, Max Planck Institute for Biogeochemistry (MPI-BGC), Max-Planck-Gesellschaft, Aarhus University [Aarhus], Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Department of Zoology, University of Cambridge [UK] (CAM), Università del Salento, Columbia University [New York], Centre de Recerca Ecològica i Aplicacions Forestals - Centre for Ecological Research and Forestry Applications, Partenaires INRAE, Forschungszentrum Jülich GmbH | Centre de recherche de Juliers, Helmholtz-Gemeinschaft = Helmholtz Association, Western Sydney University, Department of Forest Resources, University of Minnesota [Twin Cities] (UMN), University of Minnesota System-University of Minnesota System, Department of Environmental Biology, University of Guelph, Norwegian Institute for Nature Research (NINA), Centre for Ecological Research and Forestry Applications (CREAF), Universitat Autònoma de Barcelona (UAB), and Macquarie University

Subjects
Edaphic food webs, Isotopic signatures in litter food webs, Evolution, [SDV]Life Sciences [q-bio], SOIL MICROBIAL BIOMASS, Above- and below-ground plant traits (TRY), Catalan Forest Inventory, Eutrophication, Foliar C:N:P ratios, Microbial C:N:P ratios, N deposition, Plasticity at the basal trophic level, Soil invertebrates and Zoocoenoses, Ecology, Evolution, Behavior and Systematics, Ecology, BODY-SIZE RELATIONSHIPS, ARBUSCULAR MYCORRHIZAL FUNGI, Behavior and Systematics, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, ECOLOGICAL COMMUNITY DESCRIPTION, LAND-USE CHANGE, CARBON ALLOCATION DYNAMICS, [SDE]Environmental Sciences, LEAF-LITTER DECOMPOSITION, PREDICTED CLIMATE-CHANGE, GENERAL QUANTITATIVE THEORY, N-P STOICHIOMETRY
Abstract

We examine the potential of trait-based parameters of taxa for linking above-ground and belowground ecological networks (hereafter ‘green’ and ‘brown’ worlds) to understand and predict community dynamics. This synthesis considers carbon, nitrogen and phosphorus-related traits, the abundance of component species and their size-distribution across trophic levels under different forms of management. We have analyzed existing and novel databases on plants, microbes and invertebrates that combine physico-chemical and biological information from (agro)ecosystems spanning the globe. We found (1) evidence that traits from above-ground and below-ground systems may be integrated in the same model and (2) a much greater than expected stoichiometric plasticity of plants and microbes which has implications for the entire food-web mass-abundance scaling. Nitrogen and phosphorus are primary basal resources (hence, drivers) and more retranslocation of P than of N from leaves will lead to higher N:P in the litter and soil organic matter. Thus, under nutrient-rich conditions, higher foliar concentrations of N and P are reflected by lower N:P in the brown litter, suggesting less P retranslocated than N. This apparent stoichiometric dichotomy between green and brown could result in shifts in threshold elemental ratios critical for ecosystem functioning. It has important implications for a general food-web model, given that resource C:N:P ratios are generally assumed to reflect environmental C:N:P ratios. We also provide the first evidence for large-scale allometric changes according to the stoichiometry of agroecosystems. Finally, we discuss insights that can be gained from integrating carbon and nitrogen isotope data into trait-based approaches, and address the origin of changes in Δ13C and Δ15N fractionation values in relation to consumer-resource body-mass ratios

Published
2016

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