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  Plant community structure and nitrogen inputs modulate the climate signal on leaf traits

Borgy, B., Violle, C., Choler, P., Denelle, P., Munoz, F., Kattge, J., et al. (2017). Plant community structure and nitrogen inputs modulate the climate signal on leaf traits. Global Ecology and Biogeography, 26(10), 1138-1152. doi:10.1111/geb.12623.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-FE73-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-FE74-B
Genre: Journal Article

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 Creators:
Borgy, Benjamin, Author
Violle, Cyrille, Author
Choler, Philippe, Author
Denelle, Pierre, Author
Munoz, François, Author
Kattge, Jens1, Author              
Lavorel, Sandra, Author
Loranger, Jessy, Author
Amiaud, Bernard, Author
Bahn, Michael, Author
van Bodegom, Peter M., Author
Brisse, Henry, Author
Debarros, Guilhem, Author
Diquelou, Sylvain, Author
Gachet, Sophie, Author
Jolivet, Claudy, Author
Lemauviel-Lavenant, Servane, Author
Mikolajczak, Alexis, Author
Olivier, Jean, Author
Ordoñez, Jenny, Author
de Ruffray, Patrice, AuthorViovy, Nicolas, AuthorGarnier, Eric, Author more..
Affiliations:
1Interdepartmental Max Planck Fellow Group Functional Biogeography, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1938314              

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 Abstract: Aim Leaf traits strongly impact biogeochemical cycles in terrestrial ecosystems. Understanding leaf trait variation along environmental gradients is thus essential to improve the representation of vegetation in Earth system models. Our aims were to quantify relationships between leaf traits and climate in permanent grasslands at a biogeographical scale and to test whether these relationships were sensitive to (a) the level of nitrogen inputs and (b) the inclusion of information pertaining to plant community organization. Location Permanent grasslands throughout France. Methods We combined existing datasets on climate, soil, nitrogen inputs (fertilization and deposition), species composition and four traits, namely specific leaf area, leaf dry matter content and leaf nitrogen and phosphorus concentrations, for 15,865 French permanent grasslands. Trait–climate relationships were tested using the following four climatic variables available across 1,833 pixels (5 km × 5 km): mean annual temperature (MAT) and precipitation (MAP), and two indices accounting for the length of the growing season. We compared these relationships at the pixel level using either using community-level or species’ trait means. Results Our findings were as follows: (a) leaf traits related to plant nutrient economy shift consistently along a gradient of growing season length accounting for temperature and soil water limitations of plant growth (GSLtw); (b) weighting leaf traits by species abundance in local communities is pivotal to capture leaf trait–environment relationships correctly at a biogeographical scale; and (c) the relationships between traits and GSLtw weaken for grasslands with a high nitrogen input. Main conclusions The effects of climate on plant communities are better described using composite descriptors than coarse variables such as MAT or MAP, but appear weaker for high-nitrogen grasslands. Using information at the community level tends to strengthen trait–climate relationships. The interplay of land management, community assembly and bioclimate appears crucial to the prediction of leaf trait variations and their effects on biogeochemical cycles.

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 Dates: 2017-06-122017-09-192017
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: Other: BGC2713
DOI: 10.1111/geb.12623
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Title: Global Ecology and Biogeography
Source Genre: Journal
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Publ. Info: Oxford, U.K. : Blackwell Science
Pages: - Volume / Issue: 26 (10) Sequence Number: - Start / End Page: 1138 - 1152 Identifier: ISSN: 1466-822X
CoNE: /journals/resource/954925579097