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Auteur Abgrall, C.; Chauvat, M.; Langlois, E.; Hedde, M.; Mouillot, D.; Salmon, S.; Winck, B.; Forey, E. doi  openurl
  Titre Shifts and linkages of functional diversity between above- and below-ground compartments along a flooding gradient Type Article scientifique
  Année 2017 Publication Revue Abrégée Funct. Ecol.  
  Volume 31 Numéro 2 Pages 350-360  
  Mots-Clés biodiversity; community assembly; community ecology; disturbance; divergence; environmental gradient; feeding guilds; functional traits; microarthropod communities; null models; patterns; plant; plant communities; soil collembola; soil-plant interactions; species traits; trait convergence and trait divergence  
  Résumé 1. Trait-based approaches have the potential to reveal general and predictive relationships between organisms and ecosystem functioning. However, the mechanisms underlying the functional structure of communities are still unclear. Within terrestrial ecosystems, several studies have shown that many ecological processes are controlled by the interacting above-and belowground compartments. However, few studies have used traits to reveal the functional relationships between plants and soil fauna. Mostly, research combining plants and soil fauna solely used the traits of one assemblage in predictive studies. 2. Above-ground (plants) and below-ground (Collembola) compartments were sampled over a flooding gradient in northern France along the Seine River. First, we measured the effect of flooding on functional and taxonomic assembly within both communities. We then considered the linkages between plant and Collembolan species richness, community traits and assessed whether traits of both compartments converged at high flooding intensity (abiotic filtering) and diverged when this constraint is released (biotic filtering). 3. Species richness of both taxa followed the same bell-shaped pattern along the gradient, while a similar significant pattern of functional richness was only observed for plants. Further analyses revealed a progressive shift from trait convergence to divergence for plants, but not for Collembola, as constraints intensity decreased. Instead, our results highlighted that Collembola traits were mainly linked to the variations in plant traits. This leads, within Collembola assemblages, to convergence of a subset of perception and habitat-related traits for which the relationship with plant traits was assessed. 4. Synthesis. Using a trait-based approach, our study highlighted that functional relationships occur between above-and below-ground compartments. We underlined that functional composition of plant communities plays a key role in structuring Collembola assemblages in addition to the role of abiotic variables. Our study clearly shows that functional diversity provides a new approach to link the above-and below-ground compartments and might, therefore, be further considered when studying ecological processes at the interface between both compartments.  
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  Volume de collection Numéro de collection Edition  
  ISSN 0269-8463 ISBN Médium  
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  Numéro d'Appel MARBEC @ alain.herve @ collection 2091  
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Auteur Buisson, L.; Grenouillet, G.; Villeger, S.; Canal, J.; Laffaille, P. url  doi
openurl 
  Titre Toward a loss of functional diversity in stream fish assemblages under climate change Type Article scientifique
  Année 2013 Publication Revue Abrégée Glob. Change Biol.  
  Volume 19 Numéro 2 Pages 387-400  
  Mots-Clés assemblages; biotic homogenization; bird communities; climate change; distribution models; ecosystem; environmental-change; fresh-water biodiversity; functional traits; habitat; no-analog communities; range shifts; species; species distribution; stream fish; traits  
  Résumé The assessment of climate change impacts on biodiversity has so far been biased toward the taxonomic identification of the species likely either to benefit from climate modifications or to experience overall declines. There have still been few studies intended to correlate the characteristics of species to their sensitivity to climate change, even though it is now recognized that functional trait-based approaches are promising tools for addressing challenges related to global changes. In this study, two functional indices (originality and uniqueness) were first measured for 35 fish species occurring in French streams. They were then combined to projections of range shifts in response to climate change derived from species distribution models. We set out to investigate: (1) the relationship between the degrees of originality and uniqueness of fish species, and their projected response to future climate change; and (2) the consequences of individual responses of species for the functional diversity of fish assemblages. After accounting for phylogenetic relatedness among species, we have demonstrated that the two indices used measure two complementary facets of the position of fish species in a functional space. We have also rejected the hypothesis that the most original and/or less redundant species would necessarily experience the greatest declines in habitat suitability as a result of climate change. However, individual species range shifts could lead simultaneously both to a severe decline in the functional diversity of fish assemblages, and to an increase in the functional similarity among assemblages, supporting the hypothesis that disturbance favors communities with combination of common traits and biotic homogenization as well. Our findings therefore emphasize the importance of going beyond the simple taxonomic description of diversity to provide a better assessment of the likely future effects of environmental changes on biodiversity, thus helping to design more effective conservation and management measures.  
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  Volume de collection Numéro de collection Edition  
  ISSN 1354-1013 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 897  
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Auteur Elleouet, J.; Albouy, C.; Ben Rais Lasram, F.; Mouillot, D.; Leprieur, F. url  doi
openurl 
  Titre A trait-based approach for assessing and mapping niche overlap between native and exotic species: the Mediterranean coastal fish fauna as a case study Type Article scientifique
  Année 2014 Publication Revue Abrégée Diversity and Distributions  
  Volume 20 Numéro 11 Pages 1333-1344  
  Mots-Clés Biological invasions; coastal fishes; endemic species; exotic species; functional traits; Mediterranean Sea; niche overlap  
  Résumé Aim We propose a trait-based approach for assessing and mapping potential niche overlap between native and exotic species at large spatial scales. Location The Mediterranean Sea. Methods We developed two complementary indices based on ecological, biological and ecomorphological similarities between native and exotic species. The first index (FNNr) allows identifying areas where native species are the most at risk in terms of potential ecological interactions with exotic species. The second index (FGO) is species-specific and allows identifying native species that display the broadest functional niche overlap and range overlap with exotic species. We illustrated our approach using the Mediterranean coastal fish fauna as a case study. Results We found that endemic and exotic fishes had a similar global functional niche at the Mediterranean scale, that is, they filled the same functional space defined by trait axes. FNNr hotspots were found to be moderately congruent with exotic species richness hotspots. Higher values of FNNr were observed along the coasts of the Levantine Sea. The computation of the FGO index showed that the geographical range of a given endemic species overlapped in average with 52 exotic species. Species showing the highest FGO values displayed localized and/or fragmented distributions in the eastern Mediterranean basin. Main conclusions Our findings suggest that the number of exotic species alone cannot be used as a broad-scale indicator of potential impact because this metric does not account for functional relatedness between native and exotic species. The trait-based indices developed in this study can be used for other taxa in both aquatic and terrestrial ecosystems and should help environmental managers to set up local-scale studies on areas where the potential impact of exotic species on native biodiversity is the highest.  
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  Volume de collection Numéro de collection Edition  
  ISSN 1472-4642 ISBN Médium  
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  Numéro d'Appel MARBEC @ alain.herve @ collection 1165  
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Auteur Escalas, A.; Hale, L.; Voordeckers, J.W.; Yang, Y.; Firestone, M.K.; Alvarez-Cohen, L.; Zhou, J. doi  openurl
  Titre Microbial functional diversity: From concepts to applications Type Article scientifique
  Année 2019 Publication Revue Abrégée Ecol. Evol.  
  Volume 9 Numéro 20 Pages 12000-12016  
  Mots-Clés bacterial communities; biodiversity; biogeography; differentiation; functional diversity; functional traits; genes; microbial communities; niche space; redundancy; soil; taxonomy; theoretical frameworks of diversity; trait-based ecology; traits  
  Résumé Functional diversity is increasingly recognized by microbial ecologists as the essential link between biodiversity patterns and ecosystem functioning, determining the trophic relationships and interactions between microorganisms, their participation in biogeochemical cycles, and their responses to environmental changes. Consequently, its definition and quantification have practical and theoretical implications. In this opinion paper, we present a synthesis on the concept of microbial functional diversity from its definition to its application. Initially, we revisit to the original definition of functional diversity, highlighting two fundamental aspects, the ecological unit under study and the functional traits used to characterize it. Then, we discuss how the particularities of the microbial world disallow the direct application of the concepts and tools developed for macroorganisms. Next, we provide a synthesis of the literature on the types of ecological units and functional traits available in microbial functional ecology. We also provide a list of more than 400 traits covering a wide array of environmentally relevant functions. Lastly, we provide examples of the use of functional diversity in microbial systems based on the different units and traits discussed herein. It is our hope that this paper will stimulate discussions and help the growing field of microbial functional ecology to realize a potential that thus far has only been attained in macrobial ecology.  
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  ISSN 2045-7758 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2649  
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Auteur Jeliazkov, A.; Mijatovic, D.; Chantepie, S.; Andrew, N.; Arlettaz, R.; Barbaro, L.; Barsoum, N.; Bartonova, A.; Belskaya, E.; Bonada, N.; Brind'Amour, A.; Carvalho, R.; Castro, H.; Chmura, D.; Choler, P.; Chong-Seng, K.; Cleary, D.; Cormont, A.; Cornwell, W.; de Campos, R.; de Voogd, N.; Doledec, S.; Drew, J.; Dziock, F.; Eallonardo, A.; Edgar, M.J.; Farneda, F.; Flores Hernandez, D.; Frenette-Dussault, C.; Fried, G.; Gallardo, B.; Gibb, H.; Goncalves-Souza, T.; Higuti, J.; Humbert, J.-Y.; Krasnov, B.R.; Le Saux, E.; Lindo, Z.; Lopez-Baucells, A.; Lowe, E.; Marteinsdottir, B.; Martens, K.; Meffert, P.; Mellado-Diaz, A.; Menz, M.H.M.; Meyer, C.F.J.; Ramos Miranda, J.; Mouillot, D.; Ossola, A.; Pakeman, R.; Pavoine, S.; Pekin, B.; Pino, J.; Pocheville, A.; Pomati, F.; Poschlod, P.; Prentice, H.C.; Purschke, O.; Raevel, V.; Reitalu, T.; Renema, W.; Ribera, I.; Robinson, N.; Robroek, B.; Rocha, R.; Shieh, S.-H.; Spake, R.; Staniaszek-Kik, M.; Stanko, M.; Tejerina-Garro, F.L.; ter Braak, C.; Urban, M.C.; van Klink, R.; Villeger, S.; Wegman, R.; Westgate, M.J.; Wolff, J.; Zarnowiec, J.; Zolotarev, M.; Chase, J.M. doi  openurl
  Titre A global database for metacommunity ecology, integrating species, traits, environment and space Type Article scientifique
  Année 2020 Publication Revue Abrégée Sci. Data  
  Volume 7 Numéro 1 Pages 6  
  Mots-Clés biodiversity; biological traits; community structure; diversity; life-history traits; models; plant functional traits; responses; spermonde-archipelago; variables  
  Résumé The use of functional information in the form of species traits plays an important role in explaining biodiversity patterns and responses to environmental changes. Although relationships between species composition, their traits, and the environment have been extensively studied on a case-by-case basis, results are variable, and it remains unclear how generalizable these relationships are across ecosystems, taxa and spatial scales. To address this gap, we collated 80 datasets from trait-based studies into a global database for metaCommunity Ecology: Species, Traits, Environment and Space; “CESTES”. Each dataset includes four matrices: species community abundances or presences/absences across multiple sites, species trait information, environmental variables and spatial coordinates of the sampling sites. The CESTES database is a live database: it will be maintained and expanded in the future as new datasets become available. By its harmonized structure, and the diversity of ecosystem types, taxonomic groups, and spatial scales it covers, the CESTES database provides an important opportunity for synthetic trait-based research in community ecology.  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2736  
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