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Auteur Oikonomou, A.; Leprieur, F.; Leonardos, I.D. doi  openurl
  Titre Ecomorphological diversity of freshwater fishes as a tool for conservation priority setting: a case study from a Balkan hotspot Type Article scientifique
  Année 2018 Publication Revue Abrégée Environ. Biol. Fishes  
  Volume 101 Numéro 7 Pages 1121-1136  
  Mots-Clés assemblages; Balkan peninsula; communities; Conservation; Ecomorphology; environmental-factors; Freshwater fishes; functional diversity; future challenges; habitat gradients; life-history strategies; Originality; species richness; stream; traits  
  Résumé Biodiversity studies commonly focus on taxonomic diversity measures such as species richness and abundance. However, alternative measures based on ecomorphological traits are also critical for unveiling the processes shaping biodiversity and community assembly along environmental gradients. Our study presents the first analysis of habitat-trait-community structure in a Balkan biodiversity hotspot (Louros river, NW Greece), through the investigation of the relationships among freshwater fish assemblages' composition, morphological traits and habitat features. In order to provide a hierarchical classification of species' priority to protection measures, we highlight the most ecomorphologically distinct species using originality analysis. Our results suggest that the longitudinal changes of habitat variables (water temperature, depth, substrate, altitude) drive the local fish assemblages' structure highlighting the upstream-downstream gradient. We also present evidence for environmental filtering, establishing fish assemblages according to their ecomorphological traits. The calculation of the seven available indices of ecomorphological originality indicates that Valencia letourneuxi and Cobitis hellenica, which are endemic to Louros and threatened with extinction, exhibited the highest distinctiveness; thus their protection is of great importance. The methodological approach followed and the patterns described herein can contribute further to the application of community ecology theory to conservation, highlighting the need to use ecomorphological traits as a useful 'tool'.  
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  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé (up)  
  Volume de collection Numéro de collection Edition  
  ISSN 0378-1909 ISBN Médium  
  Région Expédition Conférence  
  Notes Approuvé pas de  
  Numéro d'Appel MARBEC @ alain.herve @ collection 2379  
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Auteur Descombes, P.; Leprieur, F.; Albouy, C.; Heine, C.; Pellissier, L. doi  openurl
  Titre Spatial imprints of plate tectonics on extant richness of terrestrial vertebrates Type Article scientifique
  Année 2017 Publication Revue Abrégée J. Biogeogr.  
  Volume 44 Numéro 5 Pages 1185-1197  
  Mots-Clés american biotic interchange; amphibian; andean uplift; bird; climate-change; continental drift; diversification rates; diversity; global patterns; indo-pacific; large-scale patterns; madagascar; mammal; plate tectonics; sea-level; Southeast Asia; species richness; Wallace line; wallaces line  
  Résumé AimIn interaction with past climate changes, it is likely that plate tectonics contributed to the shaping of current global species diversity, but so far this has not been statistically quantified at the global level. Here, we tested whether plate tectonics since the breakup of Gondwana left an imprint on current patterns of species richness of amphibians, birds and mammals. LocationGlobal. MethodsWe reconstructed the absolute positions of continental plates since the Early Cretaceous and used this information to derive variables of latitudinal shifts and potential exchanges among landmasses that could have modulated species richness. Using a multi-model inference approach combining both contemporary and historical variables, we quantified the relative importance of variables related to plate tectonics in explaining the spatial variation of the richness of amphibians, birds and mammals. Next, we employed a moving window approach to test whether plate tectonics left a more marked imprint in specific regions. ResultsPlatetectonics left an imprint on current patterns of vertebrate species richness in geologically singular regions, especially in the Indo-Australian Archipelago and the region comprising eastern Africa and Madagascar. For birds and mammals, but not amphibians, we found a marked contrast in species richness across Australia and Southeast Asia and eastern Africa and Madagascar associated with plate tectonics. Moreover, the relationship between species richness and plate tectonics varied across taxonomic orders for birds and mammals. Main conclusionsWhile no general imprint of plate tectonics was detected at the global scale, our regional analysis highlighted a substantial role of geodynamics in shaping current patterns of vertebrate species richness in Southeast Asia and Madagascar. Future studies should integrate the full range of processes associated with plate tectonics, including orogeny, not considered here.  
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  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé (up)  
  Volume de collection Numéro de collection Edition  
  ISSN 0305-0270 ISBN Médium  
  Région Expédition Conférence  
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  Numéro d'Appel MARBEC @ alain.herve @ collection 2129  
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Auteur Tribot, A.-S.; Carabeux, Q.; Deter, J.; Claverie, T.; Villeger, S.; Mouquet, N. doi  openurl
  Titre Confronting species aesthetics with ecological functions in coral reef fish Type Article scientifique
  Année 2018 Publication Revue Abrégée Sci Rep  
  Volume 8 Numéro Pages 11733  
  Mots-Clés appeal; diversity; ecosystem services; experience  
  Résumé The biodiversity crisis has spurred scientists to assess all facets of biodiversity so that stakeholders can establish protection programs. However, species that are perceived as beautiful receive more attention than less attractive species. This dynamic could have tremendous consequences on people's willingness to preserve biodiversity. Coral reefs might be particularly affected by this issue as they are key ecosystems that provide many services, such as aesthetic and cultural benefits attracting millions of tourists each year. Here we show the results of an online photographic questionnaire completed by 8,000 participants whereby preferences were assessed for a set of 116 reef fishes. Based on these preferences, we compared the functional richness, i.e. the amount of functional space filled, by groups of fishes based on their perceived attractiveness. We present evidence indicating that the least attractive coral reef fishes have a much higher functional richness than the most attractive species. Our results highlight the extent to which species aesthetic values' may be disconnected from their ecological values and could be misleading for conservation purposes. There is thus an urgent need to increase the attention of scientists and the general public towards less attractive species to better appreciate and protect the species that crucially support functional diversity in endangered ecosystems.  
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  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé (up)  
  Volume de collection Numéro de collection Edition  
  ISSN 2045-2322 ISBN Médium  
  Région Expédition Conférence  
  Notes Approuvé pas de  
  Numéro d'Appel MARBEC @ alain.herve @ collection 2386  
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Auteur Violle, C.; Thuiller, W.; Mouquet, N.; Munoz, F.; Kraft, N.J.B.; Cadotte, M.W.; Livingstone, S.W.; Mouillot, D. doi  openurl
  Titre Functional Rarity: The Ecology of Outliers Type Article scientifique
  Année 2017 Publication Revue Abrégée Trends Ecol. Evol.  
  Volume 32 Numéro 5 Pages 356-367  
  Mots-Clés biodiversity; community ecology; Conservation; ecosystem function; intraspecific variability; niche; phylogenetic diversity; plant-communities; spatial mismatch; trait  
  Résumé Rarity has been a central topic for conservation and evolutionary biologists aiming to determine the species characteristics that cause extinction risk. More recently, beyond the rarity of species, the rarity of functions or functional traits, called functional rarity, has gained momentum in helping to understand the impact of biodiversity decline on ecosystem functioning. However, a conceptual framework for defining and quantifying functional rarity is still lacking. We introduce 12 different forms of functional rarity along gradients of species scarcity and trait distinctiveness. We then highlight the potential key role of functional rarity in the long-term and large-scale maintenance of ecosystem processes, as well as the necessary linkage between functional and evolutionary rarity.  
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  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé (up)  
  Volume de collection Numéro de collection Edition  
  ISSN 0169-5347 ISBN Médium  
  Région Expédition Conférence  
  Notes Approuvé pas de  
  Numéro d'Appel MARBEC @ alain.herve @ collection 2131  
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Auteur Gaboriau, T.; Leprieur, F.; Mouillot, D.; Hubert, N. doi  openurl
  Titre Influence of the geography of speciation on current patterns of coral reef fish biodiversity across the Indo-Pacific Type Article scientifique
  Année 2018 Publication Revue Abrégée Ecography  
  Volume 41 Numéro 8 Pages 1295-1306  
  Mots-Clés damselfishes pomacentridae; evolutionary history; family labridae; global patterns; marine biodiversity; maximum-likelihood; peripheral endemism; phylogenies; species richness; west pacific  
  Résumé The role of speciation processes in shaping current biodiversity patterns represents a major scientific question for ecologists and biogeographers. Hence, numerous methods have been developed to determine the geography of speciation based on co-occurrence between sister-species. Most of these methods rely on the correlation between divergence time and several metrics based on the geographic ranges of sister-taxa (i.e. overlap, asymmetry). The relationship between divergence time and these metrics has scarcely been examined in a spatial context beyond regression curves. Mapping this relationship across spatial grids, however, may unravel how speciation processes have shaped current biodiversity patterns through space and time. This can be particularly relevant for coral reef fishes of the Indo-Pacific since the origin of the exceptional concentration of biodiversity in the Indo-Australian Archipelago (IAA) has been actively debated, with several alternative hypotheses involving species diversification and dispersal. We reconstructed the phylogenetic relationships between three species-rich families of coral reef fish (Chaetodontidae, Labridae, Pomacentridae) and calculated co-occurrence metrics between closely related lineages of those families. We demonstrated that repeated biogeographic processes can be identified in present-day species distribution by projecting co-occurrence metrics between related lineages in a geographical context. Our study also evidence that sister-species do not co-occur randomly across the Indo-Pacific, but tend to overlap their range within the IAA. We identified the imprint of two important biogeographic processes that caused this pattern in 48% of the sister-taxa considered: speciation events within the IAA and repeated divergence between the Indian and Pacific Ocean, with subsequent secondary contact in the IAA.  
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  Langue English Langue du Résumé Titre Original  
  Éditeur de collection Titre de collection Titre de collection Abrégé (up)  
  Volume de collection Numéro de collection Edition  
  ISSN 0906-7590 ISBN Médium  
  Région Expédition Conférence  
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  Numéro d'Appel MARBEC @ alain.herve @ collection 2388  
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