7 Works

Species ecology explains the various spatial components of genetic diversity in tropical reef fishes

Giulia Francesca Azzurra Donati, Niklaus Zemp, Stéphanie Manel, Maude Poirier, Thomas Claverie, Franck Ferraton, Théo Gaboriau, Rodney Govinden, Oskar Hagen, Shameel Ibrahim, David Mouillot, Julien Leblond, Pagu Julius, Laure Velez, Irthisham Zareer, Adam Ziyad, Fabien Leprieur, Camille Albouy & Loïc Pellissier
Generating genomic data for 19 tropical reef fish species of the Western Indian Ocean, we investigate how species ecology influences genetic diver- sity patterns from local to regional scales. We distinguish between the α, β and γ components of genetic diversity, which we subsequently link to six ecological traits. We find that the α and γ components of genetic diversity are strongly correlated so that species with a high total regional genetic diversity display systematically...

Changes in foraging mode caused by a decline in prey size have major bioenergetic consequences for a small pelagic fish

Elisa Thoral, Quentin Queiros, Damien Roussel, Gilbert Dutto, Eric Gasset, David McKenzie, Caroline Romestaing, Jean-Marc Fromentin, Claire Saraux & Loic Teulier
Global warming is causing profound modifications of aquatic ecosystems and one major outcome appears to be a decline in adult size of many fish species. Over the last decade, sardine populations in the Gulf of Lions (NW Mediterranean Sea) have shown severe declines in body size and condition as well as disappearance of the oldest individuals, which could not be related to overfishing, predation pressure, or epizootic diseases. In this study, we investigated whether this...

Combined morphological trait values (PC1–PC5) of the 9,150 freshwater fish species all over the world

Guohuan Su, Sébastien Villéger & Sebastien Brosse
This is a combined morphological trait database using PCA on 9150 freshwater fish species.

16S rRNA sequences from Mediterranean Sparidae gut microbiome

Arthur Escalas, Sébastien Villéger, Jean-Christophe Auguet & Amandine Avouac
Animals have been developing key associations with micro-organisms through evolutionary processes and ecological diversification. Hence, in some host clades, phylogenetic distance between hosts is correlated to dissimilarity in microbiomes, a pattern called phylosymbiosis. Teleost fishes, despite being the most diverse and ancient group of vertebrate, have received little attention from the microbiome perspective and our understanding of its determinants is currently limited. In this study, we assessed the gut microbiome of 12 co-occurring species of...

Climate differently influences genomic patterns of two sympatric marine fish species

Emilie Boulanger, Laura Benestan, Pierre-Edouard Guerin, Alicia Dalongeville, David Mouillot & Stéphanie Manel
1- Climate influences population genetic variation of marine species. Capturing those impacts remains challenging for marine fishes dispersing over a large geographic scale spanning steep environmental gradients. This requires an extensive spatial sampling of individuals or populations, representative of seascape heterogeneity, combined with a set of highly informative molecular markers able to reveal climatic-associated genomic variations. 2- We explored how space, dispersal and environment shape the genomic patterns of two marine fish species. We hypothesized...

Environmental DNA metabarcoding reveals and unpacks a biodiversity conservation paradox in Mediterranean marine reserves

Emilie Boulanger, Nicolas Loiseau, Alice Valentini, Véronique Arnal, Pierre Boissery, Tony Dejean, Julie Deter, Nacim Guellati, Florian Holon, Jean-Baptiste Juhel, Philippe Lenfant, Stephanie Manel & David Mouillot
Although we are currently experiencing worldwide biodiversity loss, local species richness does not always decline under anthropogenic pressure. This conservation paradox may also apply in protected areas but has not yet received conclusive evidence in marine ecosystems. Here, we survey fish assemblages in six Mediterranean no-take reserves and their adjacent fishing grounds using environmental DNA (eDNA) while controlling for environmental conditions. We detect less fish species in marine reserves than in nearby fished areas. The...

Environmental DNA metabarcoding reveals and unpacks a biodiversity conservation paradox in Mediterranean marine reserves

Emilie Boulanger, Nicolas Loiseau, Alice Valentini, Véronique Arnal, Pierre Boissery, Tony Dejean, Julie Deter, Nacim Guellati, Florian Holon, Jean-Baptiste Juhel, Philippe Lenfant, Stephanie Manel & David Mouillot
Although we are currently experiencing worldwide biodiversity loss, local species richness does not always decline under anthropogenic pressure. This conservation paradox may also apply in protected areas but has not yet received conclusive evidence in marine ecosystems. Here, we survey fish assemblages in six Mediterranean no-take reserves and their adjacent fishing grounds using environmental DNA (eDNA) while controlling for environmental conditions. We detect less fish species in marine reserves than in nearby fished areas. The...

Registration Year

  • 2021
    7

Resource Types

  • Dataset
    7

Affiliations

  • Marine Biodiversity Exploitation and Conservation
    7
  • Centre d'Ecologie Fonctionnelle et Evolutive
    4
  • University of Perpignan
    2
  • French Research Institute for Exploitation of the Sea
    2
  • University of Lausanne
    1
  • Hubert Curien Multi-disciplinary Institute
    1
  • Claude Bernard University Lyon 1
    1
  • French National Centre for Scientific Research
    1
  • Wildlife Conservation Society
    1
  • Laboratory Evolution and Biological Diversity
    1