A5019127186- Aquatic Ecosystems and Phytoplankton Dynamics
- Remote Sensing in Agriculture
- Freshwater macroinvertebrate diversity and ecology
- Remote-Sensing Image Classification
- Ecology and Vegetation Dynamics Studies
- Atmospheric and Environmental Gas Dynamics
- Coastal wetland ecosystem dynamics
- Fish Ecology and Management Studies
- Plant and animal studies
- Geochemistry and Geologic Mapping
- Insect and Arachnid Ecology and Behavior
- Insect and Pesticide Research
- Constructed Wetlands for Wastewater Treatment
- Nanoparticles: synthesis and applications
- Biological Control of Invasive Species
- Environmental Toxicology and Ecotoxicology
- Soil and Water Nutrient Dynamics
- Spectroscopy and Chemometric Analyses
- Marine and coastal plant biology
- Species Distribution and Climate Change
- Biocrusts and Microbial Ecology
- Botany and Plant Ecology Studies
- Aquatic Invertebrate Ecology and Behavior
- Microbial Community Ecology and Physiology
- Animal Vocal Communication and Behavior
Institut National Polytechnique de Toulouse
2012-2024
Université Toulouse III - Paul Sabatier
2012-2024
Laboratoire Écologie Fonctionnelle et Environnement
2014-2024
Université de Toulouse
2010-2024
Centre National de la Recherche Scientifique
2012-2024
Centre de Recherche sur la Biodiversité et l'Environnement
2023-2024
Zone Atelier Moselle
2023-2024
Institut de Recherche pour le Développement
2024
Délégation Midi Pyrénées
2023
École Nationale Supérieure Agronomique de Toulouse
2012-2023
In detritus-based ecosystems, autochthonous primary production contributes very little to the detritus pool. Yet producers may still influence functioning of these ecosystems through complex interactions with decomposers and detritivores. Recent studies have suggested that, in aquatic systems, small amounts labile carbon (C) (e.g., producer exudates), could increase mineralization more recalcitrant organic-matter pools leaf litter). This process, called priming effect, should be exacerbated...
Passive acoustic monitoring has become increasingly popular as a practical and cost-effective way of obtaining highly reliable data in ecological research projects. Increased ease collecting these means that, currently, the main bottleneck ecoacoustic projects is often time required for manual analysis passively collected recordings. In this study we evaluate potential current limitations BirdNET-Analyzer v2.4, most advanced generic deep learning algorithm bird recognition to date, tool...
Although patterns of seedling selection by herbivores are strongly influenced plant age and the expression anti‐herbivore defence, it is unclear how these characteristics interact to influence susceptibility herbivory. We tracked ontogenetic changes in a range secondary metabolites (total phenolics, alkaloids cyanogenic glycosides) commonly associated with defence for nine sympatric British grassland species. there was marked variation concentrations between different species, we found...
Summary 1. Leaf litter constitutes the major source of organic matter and energy in woodland stream ecosystems. A substantial part leaf entering running waters may be buried streambed as a consequence flooding sediment movement. While decomposition surface is relatively well understood, its fate when incorporated into river sediments, involvement invertebrate fungal decomposers such conditions, remain poorly documented. 2. We tested experimentally hypotheses that small interstices restrict...
Summary 1. Heterotrophic microorganisms are crucial for mineralising leaf litter and rendering it more palatable to leaf‐shredding invertebrates. A substantial part of entering running waters may be buried in the streambed thus exposed constraining conditions prevailing hyporheic zone. The fate this organic matter particularly role microbial conditioning habitat remain largely unexplored. 2. aim study was determine how location within (i.e. at surface or buried), as well burial history,...
Summary We examined the possibility of using dry matter content (DMC) macrophytes (the ratio mass to wet mass) as an integrative variable predict their palatability generalist invertebrate grazers. assessed 20 macrophyte species, snail Lymnaea stagnalis (L.) in non‐choice feeding experiments. Three species were studied at two different dates year, or four sites. The average consumed by L. ranged widely between and was negatively correlated plant DMC. At intraspecific level, varied over time...
Pollutants can have severe detrimental effects on insects, even at sublethal doses, damaging developmental and cognitive processes involved in crucial behaviours. Agrochemicals been identified as important causes of pollinator declines, but the impacts other anthropogenic compounds, such metallic trace elements soils waters, received considerably less attention. Here, we exposed colonies European honey bee Apis mellifera to chronic field-realistic concentrations lead food demonstrated that...
The remote assessment of soil contamination remains difficult in vegetated areas. Recent advances hyperspectral spectroscopy suggest making use plant reflectance to monitor oil and gas leakage from industrial facilities. However, knowledge about response is still limited, so only very few imaging applications are possible at this stage. We therefore conducted a greenhouse experiment on three species long-term exposed either oil-contaminated or water-deficient soils. Reflectance measurements...
With the advancement in nanotechnology, particularly use of TiO2 nanoparticles (NPs), there is a need to study their release into environment and assess related risk an environmentally relevant contamination scenario. In present study, transfer toxicity NPs microcosms mimicking terrestrial aquatic ecosystems were evaluated. The contaminated soil was prepared by spiking natural soils, with these then used as basis for all exposure systems including preparation leachates amphibian exposure....
Summary 1. This study aimed to identify the chemical and structural determinants of macrophyte palatability pond snail Lymnaea stagnalis . Eleven species were investigated, one them ( Potamogeton lucens ) was collected at four sites, on two different dates in year, an intra‐specific level. 2. Plant L. determined through non‐choice feeding assays. Dry matter content (DMC), total phenolic protein measured for each species. These parameters, soluble carbohydrate content, also sample P. 3. The...
Abstract. The success of invasive species has been attributed to the ability displace other by direct competition. We studied growth and possible competition between two macrophyte Elodea nuttallii E. canadensis , because former observed replace latter in field. Additional experiments were conducted aquaria with mixed plantings species. Species was measured competitive abilities each determined applying reciprocal yield model mean plant weight length. In monocultures rates similar, while...
Accidental oil spills were assessed in the north-eastern Ecuadorian Amazon, a rich biodiversity and cultural heritage area. Institutional reports used to estimate spill volumes over period 2001–2011. However, we had make with heterogeneous incomplete data. After statistically discriminating well- poorly-documented blocks, some factors derived from former spatially allocate where fragmentary data available. Spatial prediction accuracy was using similarity metrics cross-validation approach....