A5024087027- Plant Water Relations and Carbon Dynamics
- Ecology and Vegetation Dynamics Studies
- Plant responses to elevated CO2
- Soil Carbon and Nitrogen Dynamics
- Quality and Supply Management
- Outsourcing and Supply Chain Management
- Education, sociology, and vocational training
- Social Sciences and Governance
- Plant and animal studies
- Urban and Freight Transport Logistics
- Geology and Paleoclimatology Research
- Silicon Effects in Agriculture
- Atmospheric chemistry and aerosols
- Aging, Elder Care, and Social Issues
- Peatlands and Wetlands Ecology
- French Urban and Social Studies
- Species Distribution and Climate Change
- Plant Parasitism and Resistance
- Advanced Manufacturing and Logistics Optimization
- Maritime Ports and Logistics
- Healthcare Systems and Practices
- Vehicle Routing Optimization Methods
- Supply Chain Resilience and Risk Management
- Climate variability and models
- Sustainable Supply Chain Management
Centre National de la Recherche Scientifique
2014-2024
HEC Montréal
2013-2024
Université de Montpellier
2020-2024
Université du Québec à Chicoutimi
2022-2023
Université du Québec à Rimouski
2019-2022
Délégation Languedoc Roussillon
2021
Centre d'Écologie Fonctionnelle et Évolutive
2005-2017
Royal Swedish Academy of Sciences
2015
University of Bayreuth
2015
Norwegian Institute for Water Research
2015
Plant diversity strongly influences ecosystem functions and services, such as soil carbon storage. However, the mechanisms underlying positive plant effects on storage are poorly understood. We explored this relationship using long-term data from a grassland biodiversity experiment (The Jena Experiment) radiocarbon (14C) modelling. Here we show that higher increases rhizosphere inputs into microbial community resulting in both increased activity Increases were related to enhanced...
In the past two decades, a large number of studies have investigated relationship between biodiversity and ecosystem functioning, most which focussed on limited set variables. The Jena Experiment was up in 2002 to investigate effects plant diversity element cycling trophic interactions, using multi-disciplinary approach. Here, we review results 15 years research Experiment, focussing manipulating species richness functional richness. With more than 85,000 measures taken from plots, has...
ABSTRACT We determined the proximate chemical composition as well construction costs of leaves 27 species, grown at ambient and a twice‐ambient partial pressure atmospheric CO 2 . These species comprised wild agricultural herbaceous plants tree seedlings. Both average responses across range in response were considered. Expressed on total dry weight basis, main change due to was accumulation non‐structural carbohydrates (TNC). To lesser extent, decreases found for organic N compounds...
F. Stuart Chapin (e-mail: fschapin@socrates. berkeley.edu) is a professor and David U. Hooper postdoctoral fellow in the Department of Integrative Biology, University California, Berkeley, CA 94720. Osvaldo E. Sala at Faculty Agronomy, Buenos Aires, Av. San Martin 4453, Aires 1417, Argentina. Ingrid C. Burke an associate Forest Sciences, Colorado State University, Ft. Collins, CO 80523. J. Phillip Grime Unit Comparative Plant Ecology, The Sheffield, Sheffield S10 2TN, UK. William K....
We examined the relationship between plant species diversity, productivity and development of soil community during early secondary succession on former arable land across Europe. tested hypothesis that increasing initial diversity enhances biomass production consequently stimulates microbial abundance invertebrates. performed five identical field experiments abandoned in European countries (CZ, NL, SE, SP UK) which allowed us to test our a range climate, other environmental factors varied...
• Because the phenology of trees is strongly driven by environmental factors such as temperature, climate change has already altered vegetative and repro-ductive many species, especially in temperate zone. Here, we aimed to determine whether projected levels warming for upcoming decades will lead linear changes or more complex responses. We report results a 3-yr common garden experiment designed study phenological response artificial change, obtained through experimental reduced...
• Distinct ecosystem level carbon : nitrogen phosphorus (C N P) stoichiometries in forest foliage have been suggested to reflect ecosystem-scale selection for physiological strategies plant nutrient use. Here, this hypothesis was explored a nutrient-poor lowland rainforest French Guiana. Variation C, and P concentrations evaluated leaf litter from neighbour trees of 45 different species, the major C fractions were also measured. Litter ranged 45.3 52.4%, varied threefold (0.68–2.01%),...
1. The shrubs Cistus monspeliensis and C. albidus are obligate seeders which often dominant in Mediterranean habitats degraded by recurrent fires. 2. To determine the role of fire regulation population dynamics these species, germination requirements age-structure have been examined for populations South France. 3. Germination both species was enhanced a change light quality (red/farred ratio) similar to that occurs when removes light-filtering green leaves, but lesser extent than heat...
Significance Ecosystems are responding to climate change and increasing atmospheric CO 2 concentrations. Interactions between these factors have rarely been assessed experimentally during after extreme events despite their predicted increase in intensity frequency negative impact on primary productivity soil carbon stocks. Here, we document how a grassland exposed forecasted 2050s shows remarkable recovery of ecosystem uptake severe drought heat wave, this being amplified under elevated ....
Manipulation experiments are invaluable tools in global change ecology because they enable causal and process-based understanding. However, artifacts inherent limitations can lead to misinterpretations. Across the wide range of approaches set up such studies, we distill main challenges associated with imposed treatment(s), spatial time scale, proposing solutions outlining interpreting extrapolating results. The trade-offs between experimental realism (facilitating extrapolation) control...
Little is known about the role of plant functional diversity for ecosystem-level carbon (C) fluxes. To fill this knowledge gap, we translocated monoliths hosting communities with four and 16 sown species from a long-term grassland biodiversity experiment ('The Jena Experiment') into controlled environment facility ecosystem research (Ecotron). This allowed quantifying effects on C fluxes as well three parameters uptake efficiency (water nitrogen use efficiencies apparent quantum yield). By...
Abstract Evapotranspiration is a major component of the water cycle, yet only daytime transpiration currently considered in Earth system and agricultural sciences. This contrasts with physiological studies where 25% or more losses have been reported to occur occurring overnight at leaf plant scales. gap probably arose from limitations techniques measure nocturnal fluxes ecosystem scales, we bridge here by using lysimeters under controlled environmental conditions. The magnitude (12–23%...
Abstract Efficient extraction of soil water is essential for the productivity plant communities. However, research on complementary use resources in mixed communities, and especially impact species richness root uptake, limited. So far, these investigations have been hindered by a lack methods allowing estimation uptake profiles. The overarching aim our study was to determine whether diverse grassland communities general exploit more deeply this shift occurs all time or only during times...
The effect of plant species diversity on productivity and competitive ability was studied in an experiment carried out simultaneously five European countries: Czech Republic (CZ), the Netherlands (NL), Sweden (SE), Spain (SP), United Kingdom (UK). aim to separate ‘chance’ or ‘sampling effect’ (increasing number sown increases probability that a able ‘to do job’ will be included) from complementarity (species‐rich communities are better exploit resources take care ecosystem functions than...