Modes of functional biodiversity control on tree productivity across the European continent
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- Sophia Ratcliffe
- Systematic Botany and Functional Biodiversity Institute of Biology University of Leipzig 04103 Leipzig Germany
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- Mario Liebergesell
- Systematic Botany and Functional Biodiversity Institute of Biology University of Leipzig 04103 Leipzig Germany
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- Paloma Ruiz‐Benito
- Forest Ecology and Restoration Group Department of Life Sciences University of Alcala 28871 Alcalá de Henares Madrid Spain
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- Jaime Madrigal González
- Forest Ecology and Restoration Group Department of Life Sciences University of Alcala 28871 Alcalá de Henares Madrid Spain
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- Jose M. Muñoz Castañeda
- Institute for Theoretical Physics University of Leipzig 04103 Leipzig Germany
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- Gerald Kändler
- Forest Research Institute Baden‐Wurttemberg 79100 Freiburg Germany
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- Aleksi Lehtonen
- Natural Resources Institute Finland (Luke) FI‐01370 Vantaa Finland
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- Jonas Dahlgren
- Swedish University of Agricultural Sciences 90183 Umeå Sweden
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- Jens Kattge
- Max Planck Institute for Biogeochemistry 07745 Jena Germany
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- Josep Peñuelas
- CREAF 08193 Barcelona Catalonia Spain
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- Miguel A. Zavala
- Forest Ecology and Restoration Group Department of Life Sciences University of Alcala 28871 Alcalá de Henares Madrid Spain
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- Christian Wirth
- Systematic Botany and Functional Biodiversity Institute of Biology University of Leipzig 04103 Leipzig Germany
説明
<jats:title>Abstract</jats:title><jats:sec><jats:title>Aim</jats:title><jats:p>The relative contribution of community functional diversity and composition to ecosystem functioning is a critical question in ecology in order to enable better predictions of how ecosystems may respond to a changing climate. However, there is little consensus about which modes of functional biodiversity are most important for tree growth at large spatial scales. Here we assessed the relative importance of climate, functional diversity and functional identity (i.e. the community mean values of four key functional traits) for tree growth across the European continent, spanning the northern boreal to the southern Mediterranean forests.</jats:p></jats:sec><jats:sec><jats:title>Location</jats:title><jats:p><jats:styled-content style="fixed-case">F</jats:styled-content>inland, <jats:styled-content style="fixed-case">G</jats:styled-content>ermany, <jats:styled-content style="fixed-case">S</jats:styled-content>weden, <jats:styled-content style="fixed-case">S</jats:styled-content>pain and <jats:styled-content style="fixed-case">W</jats:styled-content>allonia (<jats:styled-content style="fixed-case">B</jats:styled-content>elgium).</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Using data from five European national forest inventories we applied a hierarchical linear model to estimate the sensitivity of tree growth to changes in climate, functional diversity and functional identity along a latitudinal gradient.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Functional diversity was weakly related to tree growth in the temperate and boreal regions and more strongly in the Mediterranean region. In the temperate region, where climate was the most important predictor, functional diversity and identity had a similar importance for tree growth. Functional identity was strongest at the latitudinal extremes of the continent, largely driven by strong changes in the importance of maximum height along the latitudinal gradient.</jats:p></jats:sec><jats:sec><jats:title>Main conclusions</jats:title><jats:p>Functional diversity is an important driver of tree growth in the Mediterranean region, providing evidence that niche complementarity may be more important for tree growth in water‐limited forests. The strong influence of functional identity at the latitudinal extremes indicates the importance of a particular trait composition for tree growth in harsh climates. Furthermore, we speculate that this functional identity signal may reflect a trait‐based differentiation of successional stages rather than abiotic filtering due to water or energy limitation.</jats:p></jats:sec>
収録刊行物
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- Global Ecology and Biogeography
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Global Ecology and Biogeography 25 (3), 251-262, 2015-12-11
Wiley