Opale Coutant

ORCID: 0000-0003-4170-6264
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About
Contact & Profiles
Research Areas
  • Identification and Quantification in Food
  • Environmental DNA in Biodiversity Studies
  • Microbial Community Ecology and Physiology
  • Wildlife Ecology and Conservation
  • Species Distribution and Climate Change
  • Wildlife-Road Interactions and Conservation
  • Fish biology, ecology, and behavior
  • Ecology and Vegetation Dynamics Studies
  • Primate Behavior and Ecology
  • Remote Sensing and LiDAR Applications
  • Coral and Marine Ecosystems Studies
  • International Maritime Law Issues
  • Parasite Biology and Host Interactions
  • Fish Ecology and Management Studies
  • Environmental Conservation and Management
  • Ichthyology and Marine Biology
  • Genomics and Phylogenetic Studies
  • Agriculture and Rural Development Research
  • French Urban and Social Studies
  • AI in cancer detection
  • Mollusks and Parasites Studies

Université de Toulouse
2021-2025

Institut de Recherche pour le Développement
2020-2025

Centre National de la Recherche Scientifique
2020-2025

Université Toulouse III - Paul Sabatier
2020-2024

Laboratoire Evolution et Diversite Biologique
2020-2022

Institut d'écologie et des sciences de l'environnement de Paris
2022

Mécanismes Adaptatifs et Evolution
2022

Abstract Arboreal camera trapping is a burgeoning method providing novel and effective technique to answer research questions across variety of ecosystems, it has the capacity improve our understanding wide range taxa. However, while terrestrial received much attention, there little guidance for dealing with unique challenges working in arboreal realm. Our review draws on expertise researchers from six continents broader literature investigate advantages disadvantages trapping, consider when...

10.1111/2041-210x.13666 article EN Methods in Ecology and Evolution 2021-07-29

Abstract Assessing the impact of human activity on ecosystems often links local biodiversity to disturbances measured within same locality. However, remote may also affect biodiversity. Here, we used environmental DNA metabarcoding evaluate relationships between vertebrate (fish and mammals) disturbance intensity in two Amazonian rivers. Measurements anthropic -here forest cover losses- were made from immediate vicinity sampling sites up 90 km upstream. The findings suggest that...

10.1038/s41467-022-30842-2 article EN cc-by Nature Communications 2022-06-07

Real-time biodiversity monitoring should provide more resolved data to quantify shifts in ecological communities progressively altered by anthropogenic disturbances. Identifying trends requires a rapid and efficient inventory method that enables the collection delivery of high-resolution within short intervals. Using aquatic environmental DNA (eDNA), we investigated spatiotemporal changes fish mammal along Maroni River French Guiana. We compared spatial between two years, separated four-year...

10.1016/j.scitotenv.2025.179021 article EN cc-by The Science of The Total Environment 2025-03-01

Abstract Environmental DNA (eDNA) metabarcoding has emerged as one of the most efficient methods to assess aquatic species presence. While method can in theory be used investigate nonaquatic fauna, its development for inventorying semi‐aquatic and terrestrial fauna is still at an early stage. Here we investigated potential eDNA mammals Neotropical environments, they aquatic, or terrestrial. We collected 96 sites distributed along three Guianese watersheds compared our inventories expected...

10.1111/1755-0998.13393 article EN Molecular Ecology Resources 2021-03-31

Freshwater ecosystems are among the most endangered ecosystem in world. Understanding how human activities affect these requires disentangling and quantifying contribution of factors driving community assembly. While it has been largely studied temperate freshwaters, tropical remain challenging to study due high species richness lack knowledge on distribution. Here, use eDNA-based fish inventories combined a community-level modelling approach allowed depicting assembly rules relative...

10.1111/gcb.16533 article EN cc-by Global Change Biology 2022-11-21

Abstract Environmental DNA (eDNA) metabarcoding has recently gain much attention to assess aquatic environment biodiversity. A great variety of protocols have been developed collect, extract, and analyze eDNA, some which are continuously evolving optimized with technological improvements. Such shifts might deprecate the biological data produced earlier protocols, leading a loss knowledge. Here, we investigated robustness an eDNA method through comparison two biodiversity datasets generated...

10.1002/edn3.158 article EN cc-by Environmental DNA 2020-11-07

Abstract Arboreal and flying frugivorous animals represent primary dispersers in the Neotropics. Studies suggest a possible compensation for loss of large species by smaller ones with expanding rampant anthropogenic pressures declining populations larger frugivores. However, studies on seed dispersal frugivores vertebrates generally focus diurnal, terrestrial, canopy, species, nocturnal canopy being less studied. Setting camera traps high fruiting nutmeg trees revealed first time frequency...

10.1038/s41598-022-11568-z article EN cc-by Scientific Reports 2022-05-07

Abstract To face the current downward trajectory of freshwater biodiversity loss, implementation effective monitoring programs is utmost importance. Environmental DNA offers unprecedented opportunities for this aim but several challenges still need to be addressed before implementing efficient species using eDNA. One them optimizing eDNA sampling scheme maximize detection probability. For instance, in flowing freshwaters, transport downstream from its source can impact probability, and blur...

10.1002/lom3.10634 article EN cc-by Limnology and Oceanography Methods 2024-07-03

Ecological interactions are being affected at unprecedented rates by human activities in tropical forests. Yet, the continuity of ecological functions provided animals, such as seed dispersal, is crucial for forest regeneration and species resilience to anthropogenic pressures. The construction new roads forests one main boosters habitat destruction it facilitates access previously isolated areas increases defaunation loss functions. It, therefore, becomes increasingly urgent rapidly assess...

10.3389/fevo.2022.805376 article EN cc-by Frontiers in Ecology and Evolution 2022-04-26

Environmental DNA (eDNA) metabarcoding has emerged as one of the most efficient method to assess aquatic species presence. While could in theory be used investigate non-aquatic fauna, its development for inventorying semi-aquatic and terrestrial fauna is still at early stages. Here we aimed investigating reliability eDNA mammals Neotropical environments, they aquatic, or terrestrial. We collected 96 sites distributed along three Guianese watersheds compared our inventories expected...

10.22541/au.160356435.56628486/v1 preprint EN Authorea (Authorea) 2020-10-24

French Guiana forests are threatened by increasing human activity such as infrastructure development, facilitating access to the forest and, therefore, logging, mining, farming and hunting. To highlight impact of pressure on fauna, dung beetle assemblage was analyzed near Saint-Georges-de-l’Oyapock compared with other sites in Guiana, considering distance main city cover loss proxies activities. Hill numbers beta diversity were calculated. Non-metric multidimensional scaling redundancy...

10.3390/d14121059 article EN cc-by Diversity 2022-12-02
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