A5018454373- Microbial Community Ecology and Physiology
- Soil Carbon and Nitrogen Dynamics
- Heavy metals in environment
- Invertebrate Taxonomy and Ecology
- Freshwater macroinvertebrate diversity and ecology
- Soil and Water Nutrient Dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
- Fish Ecology and Management Studies
- Plant Water Relations and Carbon Dynamics
- Environmental Toxicology and Ecotoxicology
- Chromium effects and bioremediation
- Aquatic Invertebrate Ecology and Behavior
- Plant responses to elevated CO2
- Isotope Analysis in Ecology
- Peatlands and Wetlands Ecology
- Tree-ring climate responses
- Forest Ecology and Biodiversity Studies
- Marine and coastal ecosystems
- Gut microbiota and health
- Ecology and Vegetation Dynamics Studies
- Urban Heat Island Mitigation
- Horticultural and Viticultural Research
- Soil and Land Suitability Analysis
- Land Use and Ecosystem Services
- Subterranean biodiversity and taxonomy
Université de Lorraine
2012-2024
Laboratoire Interdisciplinaire des Environnements Continentaux
2015-2024
Centre National de la Recherche Scientifique
2009-2024
Écologie, Systématique et Évolution
2008-2018
Université Paris-Sud
2009-2012
AgroParisTech
2009-2010
Institut des Sciences des Plantes de Paris Saclay
2010
Université Paris Cité
2009
Molina Center for Energy and the Environment
2009
Continental (France)
2009
Litter decomposition is a key process for carbon and nutrient cycling in terrestrial ecosystems mainly controlled by environmental conditions, substrate quantity quality as well microbial community abundance composition. In particular, the effects of climate atmospheric nitrogen (N) deposition on litter its temporal dynamics are significant importance, since their might change over course process. Within TeaComposition initiative, we incubated Green Rooibos teas at 524 sites across nine...
The present study examines the impact of C source (reserves vs current assimilates) on tree isotope signals and stem growth, using experimental girdling to stop supply from leaves stem. Two-year-old sessile oaks (Quercus petraea) were girdled at three different phenological periods during leafy period: early wood growth (Girdling Period 1), late 2) just after cessation 3). measured variables included respiration rates, radial increment, δ13C respired CO2 contents starch water-soluble...
Seasonal patterns of dry mass invested in chlorophyll and epidermal phenolic compounds (EPhen) were investigated vivo using optical methods, leaves 2-year-old oaks (Quercus petraea Matt. (Liebl.)) grown under semi-controlled conditions. The plasticity the seasonal pattern was by applying stem girdling treatment. In control young expanding leaves, leaf per area, investment abaxial EPhen content increased. late May, at maturity, these variables reached a plateau, adaxial contents became...
In the environment, abiotic (climatic conditions, physico-chemical parameters), biotic (interactions between microorganisms, vegetation and fauna), anthropogenic (stress, pollution) filters are driving microbial diversity observed locally. A key question in ecology is to understand impact of these on bacterial ecosystem functioning. To highlight responses assemblages ecological filters, a new approach based functional traits has been developed. This provides picture using morphological,...
From June to December, we determined the effects of variations in biochemical composition on δ13C tree rings 2-year-old oaks (Quercus petraea (Matt.) Liebl.) growing under semi-natural conditions, and dependence these water stress during growth season. Percent abundance, carbon concentration were measured holocellulose, lignin, extractive-free wood, starch a water-soluble fraction. Relative concentrations lignin holocellulose wood varied little season or response stress, indicating that...
Abstract The δ 13 C (carbon isotope composition) variations in respired CO 2 , total organic matter, proteins, sucrose and starch have been measured during tuber sprouting of potato ( Solanum tuberosum ) darkness. Measurements were carried out both on tubers their growing sprouts for 23 days after the start sprout development. Sucrose was slightly C‐depleted compared with tubers, suggesting that breakdown associated a small fractionation. In sprouts, all biochemical fractions including...
The inventory and remediation of contaminated sites have emerged as top environmental priorities worldwide. A large body evidence has accumulated to show how soil contamination affects biological communities ecological processes. This knowledge yet be used for the development indicators quality that are meaningful end-users easy implement in assessment schemes. In this study, we quantifiable measures litter decomposition, a key biophysical process, impact by trace metals hydrocarbons. We...
Abstract From soil to freshwater ecosystems, decomposition can be conceived as the result of interactions between organic matter and a diversity organisms. This function is driven in part by detritivores, invertebrates that feed on detritus or graze its associated microbes have significant but extremely variable contribution decomposition. In order better understand predict detritivore–detritus pairwise interactions, we propose conceptual framework, called Detri 2 match, study consumption...
ABSTRACT Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous soil organic pollutants. Although PAH-degrading bacteria present in almost all soils, their selection and enrichment have been shown historically high PAH contaminated soils. We can wonder if the effectiveness of biodegradation bacterial diversity differ among The stable isotope probing (SIP) technique with 13C-phenanthrene (PHE) as a model was used to: (i) compare for first time range 10 soils various contamination levels, (ii)...
Summary 1. Sediment plays a key role in internal nutrient cycling and eutrophication lakes. However, studies focusing on the efficiency of biomanipulation techniques for improving control primary producers have rarely examined effects changes food‐web structure sediment biochemical composition biodegradability. 2. In 1‐year experiment conducted large replicated mesocosms, we tested how absence or presence zooplanktivorous fish (roach, Rutilus rutilus ) affected elemental potential...
One quarter of the living beings are located beneath our feet but we know very little them (FAO, 2020). This statement will perhaps quickly change because soils now on political agenda. For France, soil is mentioned in Green Pact at European level (Montanarella, 2020) and country government's Biodiversity Plan. The law health also planned for 2023 (Köninger et al., 2022). However, as its biological component remains poorly understood, indicators used by stakeholders give only a...