A5007575919- Ecology and Vegetation Dynamics Studies
- Mycorrhizal Fungi and Plant Interactions
- Environmental DNA in Biodiversity Studies
- Forest Ecology and Biodiversity Studies
- Microbial Community Ecology and Physiology
- Protist diversity and phylogeny
- Botany and Plant Ecology Studies
- Plant and animal studies
- Species Distribution and Climate Change
- Peatlands and Wetlands Ecology
- Weed Control and Herbicide Applications
- Geology and Paleoclimatology Research
- Agronomic Practices and Intercropping Systems
- Horticultural and Viticultural Research
- Catalytic Processes in Materials Science
- Agricultural pest management studies
- Genetic and Environmental Crop Studies
- Forest Management and Policy
- Polar Research and Ecology
- Genetics and Plant Breeding
- Agriculture, Plant Science, Crop Management
- Allelopathy and phytotoxic interactions
- Marine Biology and Ecology Research
- Plant Water Relations and Carbon Dynamics
- Plant tissue culture and regeneration
Université de Toulouse
2015-2024
Dynamiques et écologie des paysages agriforestiers
2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2024
University of Milan
2022-2024
Ecole d'Ingénieurs de PURPAN
2024
Institut National Polytechnique de Toulouse
2024
Laboratoire d'Écologie Alpine
2023
Université de Montréal
2019-2022
Ecologie des Forêts de Guyane
2017
Université Toulouse III - Paul Sabatier
2015
Abstract Climate warming is expected to cause the poleward and upward elevational expansion of temperate plant species, but non‐climatic factors such as soils could constrain this range expansion. However, extent which edaphic constraints on have an abiotic (e.g. soil chemistry) or biotic micro‐organisms) origin remains undetermined. We conducted greenhouse experiments test if survival growth a major North American tree Acer saccharum (sugar maple), independently jointly constrained by...
Summary The development of terrestrial ecosystems depends greatly on plant mutualists such as mycorrhizal fungi. global retreat glaciers exposes nutrient‐poor substrates in extreme environments and provides a unique opportunity to study early successions fungi by assessing their dynamics drivers. We combined environmental DNA metabarcoding measurements local conditions assess the succession communities during soil 46 glacier forelands around globe, testing whether drivers differ between...
Ice-free areas are expanding worldwide due to dramatic glacier shrinkage and undergoing rapid colonization by multiple lifeforms, thus representing key environments study ecosystem development. It has been proposed that the dynamics of deglaciated terrains is different between surface deep soils but heterogeneity communities inhabiting decreases through time. Nevertheless, tests this hypothesis remain scarce, it unclear whether patterns consistent among taxonomic groups. Here, we used...
Leaf spectra are integrated foliar phenotypes that capture a range of traits and can provide insight into ecological processes. traits, therefore leaf spectra, may reflect belowground processes such as mycorrhizal associations. However, evidence for the relationship between association is mixed, few studies account shared evolutionary history. We conduct partial least squares discriminant analysis to assess ability predict type. model evolution 92 vascular plant species use phylogenetic...
Protists are major actors of soil communities and play key roles in shaping food webs, community assembly, ecosystem processes, yet their functional diversity is understudied. High-throughput sequencing data have revealed ubiquity diversity, but lack standardized traits has hampered the integration information, limiting our understanding ecosystems. Here we propose a framework for protists, identify set common to characterize apply on broad-scale, real-world dataset. We reviewed studies...
Bogs, as nutrient-poor ecosystems, are particularly sensitive to atmospheric nitrogen (N) deposition. Nitrogen deposition alters bog plant community composition and can limit their ability sequester carbon (C). Spectroscopy is a promising approach for studying how N affects bogs because of its remotely determine changes in species the long term well shorter-term foliar chemistry. However, there limited knowledge on extent which plants differ spectral properties, might affect those whether...
Abstract The worldwide retreat of glaciers is causing a faster than ever increase in ice‐free areas that are leading to the emergence new ecosystems. Understanding dynamics these environments critical predicting consequences climate change on mountains and at high latitudes. Climatic differences between regions world could modulate biodiversity functionality after glacier retreat, yet global tests this hypothesis lacking. Nematodes most abundant soil animals, with keystone roles ecosystem...
With steep climatic gradients over short distances, montane ecosystems provide exceptional opportunities to study ecological responses climate and other environmental changes. Here we present a summary synthesis of 10 years research on this theme in protected area southern Québec, Canada (Parc National du Mont Mégantic), with conditions closely similar the northern Appalachians. During ∼150 since European settlement, anthropogenic disturbance has reduced abundance certain taxa (e.g., Picea...
Abstract Mechanisms underlying plant succession remain highly debated. A global quantification of the relative importance species addition versus replacement is lacking due to local scope most studies. We quantified their role in variation communities colonizing forelands 46 retreating glaciers distributed worldwide, using both environmental DNA and traditional surveys. Both mechanisms concur determining community changes over time but varied along successions. Taxa predominated immediately...
Abstract It has been proposed that ectomycorrhizal (EcM) fungi slow down decomposition by competing with free-living saprotrophs for organic nutrients and other soil resources (known as the “Gadgil effect”), thereby increasing carbon sequestration. As such, this Gadgil effect should depend on matter age quality, but remains unstudied. In addition, is not expected to occur in arbuscular mycorrhizal (AM) forests since AM cannot access directly from matter, yet few direct comparisons between...
Soil hosts key components of terrestrial biodiversity providing essential services to the below- and above-ground ecosystems. The worldwide retreat glaciers is exposing new deglaciated terrains, offering a unique opportunity understand development soil ecosystems under changing climate. Many studies have investigated how biotic communities change after deglaciation, but protists often been overlooked despite their role in multiple ecosystem functions. Here, we aim protist develop along...
Résumé: Les effets de la densité et période concurrence Solanum nigrum L. ont été déterminés dans des cultures tomate en semis direct, relation avec les techniques désherbage utilisées le Sud‐Est France. Des S. levant après une application diquat au stade 2–3 feuilles plante cultivée éclaircies à faibles densites (entre 0 12,8 plantes par m 2 ) 5–6 cultivée, entraîné pertes significatives rendement lorsqu'elles concurrençaient culture jusqu'à récolte. rendements subi plus réductions lorsque...
Abstract Inheritance of several morphological and fertility characters was studied in F2 generation two sets diallel cross, using Griffing's analysis variance. A paramount importance general combining ability (GCA) over specific measured for most characteristics. Correlations among GCA values seed yield, do not give a clear definition the plant ideotype. “Terminal inflorescence” character appeared to reduce per ovule ratio. Higher additive component found pod than characters.
Ice-free areas are increasing worldwide due to the dramatic glacier shrinkage and undergoing rapid colonization by multiple lifeforms, thus representing key environments study ecosystem development. Soils have a complex vertical structure. However, we know little about how microbial animal communities differ across soil depths development stages during of deglaciated terrains, these differences evolve through time, whether patterns consistent among different taxonomic groups. Here, used...
Résumé Dans une expérience de plein champ, où tous les facteurs déographiques et génétiques concurrence étaient déterminés, des densités différentes d'une variété d'avoine printemps (espèce considérée comme graminée adventice) ont étéétablies dans culture blé printemps. Sur la moitié parcelles du dispositif expérimental, l'avoine a été détruite par application diclofopméthyl au stade 3 talles blé. Les mauvaises herbes dicotylédones désherbées soit à même date que celle traitement (traitement...