A5006431513- Environmental DNA in Biodiversity Studies
- Fish Ecology and Management Studies
- Identification and Quantification in Food
- Isotope Analysis in Ecology
- Aquatic Invertebrate Ecology and Behavior
- Marine Biology and Ecology Research
- Microbial Community Ecology and Physiology
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2024
Aix-Marseille Université
2020-2024
Centre National de la Recherche Scientifique
2020-2022
Institut de Recherche pour le Développement
2020-2022
Université d'Avignon et des Pays de Vaucluse
2020-2022
Abstract Dietary studies are critical for understanding foraging strategies and have important applications in conservation habitat management. We applied a robust metabarcoding protocol to characterize the diet of critically endangered freshwater fish Zingel asper (the Rhone streber). conducted modelling simulation analyses identify some drivers individual trophic trait variation this species. found that population density ontogeny had minor effects on niche Z. . Instead, our results...
Abstract The objective of this study was to assess barcoding environmental DNA as a method for monitoring invertebrate ecosystem service providers in soil samples. We selected 26 that occur New Zealand kiwifruit or apple orchards and produced mitochondrial cytochrome c oxidase gene subunit I (cytochrome I) and/or 28S ribosomal sequences each. Specific barcode primers were designed each provider tested, along with generic primers, their ability detect from had been added sterilized...
Niche partitioning studies are essential to understand the mechanisms that allow ecologically similar species coexist. The Rhone streber (Zingel asper) and European bullhead (Cottus gobio) both benthic riverine fishes consume macroinvertebrates. Both protected under legislature. We focused on trophic niche between these species, as sufficient access resources is an important requirement for long-term coexistence. used a combination of faeces metabarcoding dietary data prey community evaluate...
Within-species Individual Trait Variation (ITV) is now recognised as an important source of variability in ecological communities. variation trophic niche traits (i.e. individual width and between-individual variation) can greatly modify top-down and/or competitive interactions. Trophic vary according to opportunity, which represents the range exploitable resources. While role prey availability driving well-established, abiotic drivers (e.g. habitat structure) are rarely accounted for, or...
Community ecology has so far struggled to integrate both deterministic and stochastic processes into a global model of community variation. To address this issue, we aimed characterise the ecological conditions that determine relative importance variation in benthic macroinvertebrates. We sampled macroinvertebrate algal periphyton communities, microhabitat at monthly intervals over five year period two sampling sites regulated Durance River one site Asse (a natural tributary Durance). The...
Abstract Dietary studies are critical for understanding foraging strategies and have important applications in conservation habitat management. We applied a robust metabarcoding protocol to characterize the diet of critically endangered freshwater fish Zingel asper conducted modelling simulation analyses identify some drivers individual trophic trait variation this species. found that intra-specific competition ontogeny had minor effects on niche Z. . Instead, our results suggest majority...