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Auteur Sandra Lavorel (1965-) |
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Titre : Agriculture et biodiversité. Valoriser les synergies : synthèse du rapport d'expertise Type de document : Imprimé Auteurs : Xavier Le Roux (1967-) ; Robert Barbault (1943-2013) ; Jacques Baudry (1952-) ; Françoise Burel ; Isabelle Doussan ; Eric Garnier (1959-) ; Félix Herzog ; Sandra Lavorel (1965-) ; Robert Lifran ; Jean Roger-Estrade ; Jean Pierre Sarthou ; Michel Trommetter Editeur : Paris : INRA Année de publication : 2008 Importance : 116 p. Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Etude d'aménagement, étude d'impact, actions anthropiques et leur impact
[CBNPMP-Thèmes] Gestion de la biodiversité
[CBNPMP-Thèmes] Incidence des activités agricolesRésumé : Cette Expertise Scientifique Collective (ESCo), réalisée à la demande des ministères de l’agriculture et de l’écologie, intervient dans un contexte marqué par un très fort intérêt porté à la biodiversité, désormais considérée comme un enjeu d’importance majeure. Cet intérêt est né du constat de la perte actuelle de biodiversité (liée, entre autres, à l’activité agricole), de la prise de conscience de ses rôles multiples (ressources génétiques potentielles, services écologiques à valeur marchande ou non, capacité d’autorégulation des agro-écosystèmes…) et des réflexions sur la conception de nouvelles manières de produire pour faire face aux enjeux futurs (baisse de l’emploi des pesticides, adaptation des systèmes au changement climatique, diminution de l’utilisation de carburants fossiles…) qui font une part importante à la biodiversité, élément majeur des capacités d'adaptation des agroécosystèmes. Lien pérenne : HAL : hal-01173738 / DOI : 10.15454/chz5-0922 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=81498 Le Roux, X., Barbault, R., Baudry, J., Burel, F., Doussan, I., Garnier, E., Herzog, F., Lavorel, S., Lifran, R., Roger-Estrade, J., Sarthou, J.P., Trommetter, M. 2008. Agriculture et biodiversité. Valoriser les synergies : synthèse du rapport d'expertise. INRA, Paris. 116 pp.Exemplaires (1)
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Rapport (2008)URL Climate change threats to plant diversity in Europe / Wilfried Thuiller in Proceedings of the National Academy of Sciences of the United States of America, 102 (23) (2005)
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Titre : Climate change threats to plant diversity in Europe Type de document : Électronique Auteurs : Wilfried Thuiller (1975-) ; Sandra Lavorel (1965-) ; Miguel B. Araújo ; Martin T. Sykes ; I. Colin Prentice Année de publication : 2005 Article en page(s) : 8245-8250 Langues : Anglais (eng) Catégories : [CBNPMP-Géographique] Europe
[CBNPMP-Thèmes] Relations climat-végétationRésumé : Climate change has already triggered species distribution shifts in many parts of the world. Increasing impacts are expected for the future, yet few studies have aimed for a general understanding of the regional basis for species vulnerability. We projected late 21st century distributions for 1,350 European plants species under seven climate change scenarios. Application of the International Union for Conservation of Nature and Natural Resources Red List criteria to our projections shows that many European plant species
could become severely threatened. More than half of the species we studied could be vulnerable or threatened by 2080. Expected species loss and turnover per pixel proved to be highly variable across scenarios (27– 42% and 45– 63% respectively, averaged over Europe) and across regions (2.5– 86% and 17– 86%, averaged over scenarios). Modeled species loss and turnover were found to depend strongly on the degree of change in just two climate variables describing temperature and moisture conditions. Despite the coarse scale of the analysis, species from mountains could be seen to be disproportionably sensitive to climate change (about 60% species loss). The boreal region was projected to lose few species, although gaining many others from immigration. The greatest changes are expected in the transition between the Mediterranean and Euro-Siberian regions. We found that risks of extinction for European plants may be large, even in moderate scenarios of climate change and despite inter-model variability.Lien pérenne : DOI : 10.1073/pnas.0409902102 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=143442
in Proceedings of the National Academy of Sciences of the United States of America > 102 (23) (2005) . - 8245-8250Thuiller, W., Lavorel, S., Araújo, MB., Sykes, MT., Prentice, I.C. 2005. Climate change threats to plant diversity in Europe. Proceedings of the National Academy of Sciences of the United States of America, 102(23): 8245-8250.Documents numériques
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Article (2005)URL Contribution of above- and below-ground plant traits to the structure and function of grassland soil microbial communities / Nicolas Legay in Annals of Botany, 114 (2014)
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Titre : Contribution of above- and below-ground plant traits to the structure and function of grassland soil microbial communities Type de document : Imprimé Auteurs : Nicolas Legay ; Catherine Baxendale ; Karl Grigulis ; Ute krainer ; Eva Kastl ; Michael Schloter ; Richard D. Bardgett ; Cindy Arnoldi ; Michael Bahn ; Maxime Dumont ; Franck Poly ; Jean-Christophe Clément ; Sandra Lavorel (1965-) Année de publication : 2014 Article en page(s) : 1011-1021 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Prairies humides et hautes communautés herbeuses
[CBNPMP-Thèmes] RevégétalisationRésumé : Background and Aims : Abiotic properties of soil are known to be major drivers of the microbial community within it. Our understanding of how soil microbial properties are related to the functional structure and diversity of plant communities, however, is limited and largely restricted to above-ground plant traits, with the role of below-ground traits being poorly understood. This study investigated the relative contributions of soil abiotic properties and plant traits, both above-ground and below-ground, to variations in microbial processes involved in grassland nitrogen turnover. Methods : In mountain grasslands distributed across three European sites, a correlative approach was used to examine the role of a large range of plant functional traits and soil abiotic factors on microbial variables, including gene abundance of nitrifiers and denitrifiers and their potential activities. Key Results : Direct effects of soil abiotic parameters were found to have the most significant influence on the microbial groups investigated. Indirect pathways via plant functional traits contributed substantially to explaining the relative abundance of fungi and bacteria and gene abundances of the investigated microbial communities, while they explained little of the variance in microbial activities. Gene abundances of nitrifiers and denitrifiers were most strongly related to below-ground plant traits, suggesting that they were the most relevant traits for explaining variation in community structure and abundances of soil microbes involved in nitrification and denitrification. Conclusions : The results suggest that consideration of plant traits, and especially below-ground traits, increases our ability to describe variation in the abundances and the functional characteristics of microbial communities in grassland soils. Lien pérenne : DOI : 10.1093/aob/mcu169 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148965
in Annals of Botany > 114 (2014) . - 1011-1021Legay, N., Baxendale, C., Grigulis, K., krainer, U., Kastl, E., Schloter, M., Bardgett, RD., Arnoldi, C., Bahn, M., Dumont, M., Poly, F., Clément, J.C., Lavorel, S. 2014. Contribution of above- and below-ground plant traits to the structure and function of grassland soil microbial communities. Annals of Botany, 114: 1011-1021.Documents numériques
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Article (2014)URL A handbook of protocols for standardised and easy measurement of plant functional traits worldwide / Johannes H. C. Cornelissen in Australian Journal of Botany, 51 (2003)
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Titre : A handbook of protocols for standardised and easy measurement of plant functional traits worldwide Type de document : Imprimé Auteurs : Johannes H. C. Cornelissen ; Sandra Lavorel (1965-) ; Eric Garnier (1959-) ; Sandra Díaz ; N. Buchmann ; D. E. Gurvich ; Peter B. Reich ; H. ter Steege ; H. D. Morgan ; M. G. A. van der Heijden ; Juli G. Pausas ; Hendrik Poorter Année de publication : 2003 Article en page(s) : 335-380 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Revégétalisation Résumé : There is growing recognition that classifying terrestrial plant species on the basis of their function (into ‘functional types’) rather than their higher taxonomic identity, is a promising way forward for tackling important ecological questions at the scale of ecosystems, landscapes or biomes. These questions include those on vegetation responses to and vegetation effects on, environmental changes (e.g. changes in climate, atmospheric chemistry, land use or other disturbances). There is also growing consensus about a shortlist of plant traits that should underlie such functional plant classifications, because they have strong predictive power of important ecosystem responses to environmental change and/or they themselves have strong impacts on ecosystem processes. The most favoured traits are those that are also relatively easy and inexpensive to measure for large numbers of plant species. Large international research efforts, promoted by the IGBP–GCTE Programme, are underway to screen predominant plant species in various ecosystems and biomes worldwide for such traits. This paper provides an international methodological protocol aimed at standardising this research effort, based on consensus among a broad group of scientists in this field. It features a practical handbook with step-by-step recipes, with relatively brief information about the ecological context, for 28 functional traits recognised as critical for tackling large-scale ecological questions. Lien pérenne : DOI : 10.1071/BT02124 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150716
in Australian Journal of Botany > 51 (2003) . - 335-380Cornelissen, JHC., Lavorel, S., Garnier, E., Díaz, S., Buchmann, N., Gurvich, DE., Reich, PB., Steege, H.t., Morgan, HD., Heijden, M.G.A.v.d., Pausas, JG., Poorter, H. 2003. A handbook of protocols for standardised and easy measurement of plant functional traits worldwide. Australian Journal of Botany, 51: 335-380.Documents numériques
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Article (2003)URL 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)
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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-Thèmes] 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
in Ecography > 36 (3) (2013) . - 393-402Bello (de), F., Lavorel, S., Lavergne, S., Albert, C.H., Boulangeat, I., Mazel, F., Thuillier, W. 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.Documents numériques
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Article (2013)URL Impact de la fauche et de la litière sur les stratégies de régénération en prairies subalpines / Flore Viard-Crétat (2006)
PermalinkIncorporating 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)
PermalinkLes mécanismes d’adaptation de la biodiversité aux changements climatiques et leurs limites / Sandra Lavorel (2017)
PermalinkMechanisms underlying the impacts of exotic plant invasions / Jonathan M. Levine in Proceedings of the Royal Society. Biological Sciences, 270 (2003)
PermalinkPermalinkPlant functional types: are we getting any closer to the holy grail? / Sandra Lavorel (2007)
PermalinkPlant response traits mediate the effects of subalpine grasslands on soil moisture / Nicolas Gross in New Phytologist, 180 (2008)
PermalinkPratiques agricoles et propriétés agro-écologiques des prairies dans un processus d’intensification écologique : le cas de l’élevage bovin dans le Vercors / Gregory Loucougaray (2013)
PermalinkPredicting richness of native, rare, and exotic plants in response to habitat and disturbance variables across a variegated landscape / S. Mc Intyre (1994)
PermalinkProspective scientique sur la recherche française en Biodiversité / Jean-François Silvain (2009)
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