A5005569429- Fish Ecology and Management Studies
- Isotope Analysis in Ecology
- Aquatic Invertebrate Ecology and Behavior
- Environmental DNA in Biodiversity Studies
- Animal Ecology and Behavior Studies
- Species Distribution and Climate Change
- Marine and fisheries research
- Water-Energy-Food Nexus Studies
- Mercury impact and mitigation studies
- Hydrology and Sediment Transport Processes
- Aquatic Ecosystems and Phytoplankton Dynamics
- Ecosystem dynamics and resilience
- Fish biology, ecology, and behavior
- Wildlife Ecology and Conservation
- Yersinia bacterium, plague, ectoparasites research
- Genetic diversity and population structure
- Ecology and biodiversity studies
Université Toulouse III - Paul Sabatier
2024-2025
Institut de Recherche pour le Développement
2024-2025
Université de Toulouse
2024-2025
Centre National de la Recherche Scientifique
2024-2025
Université Savoie Mont Blanc
2020-2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2023
Centre Alpin sur les Réseaux Trophiques et Ecosystèmes Lacustre
2022-2023
Abstract The European catfish ( Silurus glanis ) recently colonised large peri‐alpine lakes where its exploitation of the different lake habitats (i.e. littoral, pelagic and deep benthic) may be supported by interindividual trophic variations fostering establishment. We investigated prey supporting S . diet in largest French (Lake Bourget) based on contents 231 stomachs combined with 217 individual stable isotope measurements (δ 13 C δ 15 N). isotopes were quantified to identify...
Abstract Trophic interactions are central in understanding ecosystem processes and the management of natural ecosystems but frequently complex to estimate. To address this issue, body size has been shown be a useful trait reconstruct species interactions, particularly aquatic ecosystems. An allometric niche model (aNM) considering as is proposed predict trophic temperate freshwater The aNM calibration was based on 26 ubiquitous with known minimal maximum prey sizes that permitted...
The impacts of invasive species on resident communities are driven by a tangle ecological interactions difficult to quantify empirically. Combining niche model with population dynamic model, both allometrically parametrized, may represent consistent framework investigate in food web context when empirical data scarce. We used this assess the consequences an apex predator ( Silurus glanis ) peri-Alpine lake webs. Both increases and decreases abundances were highlighted differed accounting for...
The whitefish ( Coregonus lavaretus) is a core exploited species in numerous fisheries and the invasion of European catfish Silurus glanis) peri-Alpine lakes may represent an emergent threat to this salmonid. We aimed assess vulnerability French lake (Lake Bourget) by combining diet analyses (metabarcoding), trophic link inferences from allometric niche model (aNM), development predation risk metric derived depth matching energy demand. Whitefish DNA was found 7% intestines, indicating low...
Abstract Salmonids are introduced in various ecosystems, including mountain lakes characterised by extreme environmental constraints. Although these constraints can affect salmonid body condition through direct and indirect pathways, they remain seldom explored despite their importance for understanding fitness long‐term establishment. In order to fill this gap, we firstly fitted species‐specific weight–length relationships three species nine lakes, compared allometric coefficients with...
Abstract Trophic partitioning, defining how individuals or populations differ in their resource use, is expected to promote coexistence of sympatric species by reducing overlap. We used stable isotope measurements (δ 13 C and δ 15 N) address niche characteristics N ranges, convex hull standard ellipse areas, mean nearest neighbour distances trophic positions) partitioning brown trout ( Salmo trutta , n = 110) European grayling Thymallus thymallus 63) two sampling locations a French river....