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Hierarchical effects of environmental fi lters on the functional structure of plant communities: a case study in the French Alps / Francesco Bello (de) in Ecography, 36 (3) (2013) 

Public Citation [article]  inEcography > 36 (3) (2013) . - 393-402 Titre : Hierarchical effects of environmental fi lters on the functional structure of plant communities: a case study in the French Alps Type de document : Imprimé Auteurs : Francesco Bello (de) ; Sandra Lavorel (1965-) ; Sébastien Lavergne (1976-) ; Cécile H Albert ; Isabelle Boulangeat ; Florent Mazel ; Wilfried Thuillier Année de publication : 2013 Article en page(s) : 393-402 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Revégétalisation Résumé : Understanding the influence of the environment on the functional structure of ecological communities is essential to predict the response of biodiversity to global change drivers. Ecological theory suggests that multiple environmental factors shape local species assemblages by progressively filtering species from the regional species pool to local communities. These successive filters should influence the various components of community functional structure in different ways. In this paper, we tested the relative influence of multiple environmental filters on various metrics of plant functional trait structure (i.e. ‘community weighted mean trait’ and components of functional trait diversity, i.e. functional richness, evenness and divergence) in 82 vegetation plots in the Guisane Valley, French Alps. For the 211 sampled species we measured traits known to capture key aspects of ecological strategies amongst vascular plant species, i.e. leaf traits, plant height and seed mass (LHS). A comprehensive information theory framework, together with null model based resampling techniques, was used to test the various environmental effects. Particular community components of functional structure responded differently to various environmental gradients, especially concerning the spatial scale at which the environmental factors seem to operate. Environmental factors acting at a large spatial scale (e.g. temperature) were found to predominantly shape community weighted mean trait values, while fine-scale factors (topography and soil characteristics) mostly influenced functional diversity and the distribution of trait values among the dominant species. Our results emphasize the hierarchical nature of ecological forces shaping local species assemblage: large-scale environmental filters having a primary effect, i.e. selecting the pool of species adapted to a site, and then filters at finer scales determining species abundances and local species coexistence. This suggests that different components of functional community structure will respond differently to environmental change, so that predicting plant community responses will require a hierarchical multi-facet approach. Lien pérenne : DOI : 10.1111/j.1600-0587.2012.07438.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150671 Bello (de), Francesco, Lavorel, Sandra (1965-), Lavergne, Sébastien (1976-), Albert, Cécile H, Boulangeat, Isabelle, Mazel, Florent, Thuillier, Wilfried 2013 Hierarchical effects of environmental fi lters on the functional structure of plant communities: a case study in the French Alps. Ecography, 36(3): 393-402.

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Consultable Article (2013) URL

Incorporating plant functional diversity effects in ecosystem service assessments / Sandra Díaz in Proceedings of the National Academy of Sciences of the United States of America, 104 (52) (2007) 

Public Citation [article]  inProceedings of the National Academy of Sciences of the United States of America > 104 (52) (2007) . - 20684-20689 Titre : Incorporating plant functional diversity effects in ecosystem service assessments Type de document : Imprimé Auteurs : Sandra Díaz ; Sandra Lavorel (1965-) ; Francesco Bello (de) ; Fabien Quétier ; Karl Grigulis ; T. Matthew Robson Année de publication : 2007 Article en page(s) : 20684-20689 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Revégétalisation Résumé : Global environmental change affects the sustained provision of a wide set of ecosystem services. Although the delivery of ecosystem services is strongly affected by abiotic drivers and direct land use effects, it is also modulated by the functional diversity of biological communities (the value, range, and relative abundance of functional traits in a given ecosystem). The focus of this article is on integrating the different possible mechanisms by which functional diversity affects ecosystem properties that are directly relevant to ecosystem services. We propose a systematic way for progressing in understanding how land cover change affects these ecosystem properties through functional diversity modifications. Models on links between ecosystem properties and the local mean, range, and distribution of plant trait values are numerous, but they have been scattered in the literature, with varying degrees of empirical support and varying functional diversity components analyzed. Here we articulate these different components in a single conceptual and methodological framework that allows testing them in combination. We illustrate our approach with examples from the literature and apply the proposed framework to a grassland system in the central French Alps in which functional diversity, by responding to land use change, alters the provision of ecosystem services important to local stakeholders. We claim that our framework contributes to opening a new area of research at the interface of land change science and fundamental ecology. Lien pérenne : DOI : 10.1073/pnas.0704716104 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148729 Díaz, Sandra, Lavorel, Sandra (1965-), Bello (de), Francesco, Quétier, Fabien, Grigulis, Karl, Robson, T. Matthew 2007 Incorporating plant functional diversity effects in ecosystem service assessments. Proceedings of the National Academy of Sciences of the United States of America, 104(52): 20684-20689.

Documents numériques

Consultable Article (2007) URL