ORCID Profile
0000-0002-9392-5154
Current Organisations
Centre National de la Recherche Scientifique
,
Ecole Nationale Supérieure Agronomique de Montpellier
,
Université des Sciences et Techniques du Languedoc
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Publications
Functional trait trade-offs define plant population stability across different biomes
Publisher: The Royal Society
Date: 28-06-2023
Plant species traits are the predominant control on litter decomposition rates within biomes worldwide
Publisher: Wiley
Date: 09-2008
DOI: 10.1111/J.1461-0248.2008.01219.X
Abstract: Worldwide decomposition rates depend both on climate and the legacy of plant functional traits as litter quality. To quantify the degree to which functional differentiation among species affects their litter decomposition rates, we brought together leaf trait and litter mass loss data for 818 species from 66 decomposition experiments on six continents. We show that: (i) the magnitude of species-driven differences is much larger than previously thought and greater than climate-driven variation (ii) the decomposability of a species' litter is consistently correlated with that species' ecological strategy within different ecosystems globally, representing a new connection between whole plant carbon strategy and biogeochemical cycling. This connection between plant strategies and decomposability is crucial for both understanding vegetation-soil feedbacks, and for improving forecasts of the global carbon cycle.
Directional trends in species composition over time can lead to a widespread overemphasis of year‐to‐year asynchrony
Publisher: Wiley
Date: 30-07-2020
DOI: 10.1111/JVS.12916
Effects of leaf emergence on leaf lifespan are independent of life form and successional status
Publisher: Wiley
Date: 08-10-2008
Functional traits trade-offs define plant population stability worldwide
Publisher: Cold Spring Harbor Laboratory
Date: 27-06-2022
Synchrony matters more than species richness in plant community stability at a global scale
Publisher: Proceedings of the National Academy of Sciences
Date: 08-09-2020
Plant growth analysis: an evaluation of experimental design and computational methods
Publisher: Oxford University Press (OUP)
Date: 1996
New handbook for standardised measurement of plant functional traits worldwide
Publisher: CSIRO Publishing
Date: 2013
DOI: 10.1071/BT12225
Abstract: Plant functional traits are the features (morphological, physiological, phenological) that represent ecological strategies and determine how plants respond to environmental factors, affect other trophic levels and influence ecosystem properties. Variation in plant functional traits, and trait syndromes, has proven useful for tackling many important ecological questions at a range of scales, giving rise to a demand for standardised ways to measure ecologically meaningful plant traits. This line of research has been among the most fruitful avenues for understanding ecological and evolutionary patterns and processes. It also has the potential both to build a predictive set of local, regional and global relationships between plants and environment and to quantify a wide range of natural and human-driven processes, including changes in bio ersity, the impacts of species invasions, alterations in biogeochemical processes and vegetation–atmosphere interactions. The importance of these topics dictates the urgent need for more and better data, and increases the value of standardised protocols for quantifying trait variation of different species, in particular for traits with power to predict plant- and ecosystem-level processes, and for traits that can be measured relatively easily. Updated and expanded from the widely used previous version, this handbook retains the focus on clearly presented, widely applicable, step-by-step recipes, with a minimum of text on theory, and not only includes updated methods for the traits previously covered, but also introduces many new protocols for further traits. This new handbook has a better balance between whole-plant traits, leaf traits, root and stem traits and regenerative traits, and puts particular emphasis on traits important for predicting species’ effects on key ecosystem properties. We hope this new handbook becomes a standard companion in local and global efforts to learn about the responses and impacts of different plant species with respect to environmental changes in the present, past and future.
The global spectrum of plant form and function: enhanced species-level trait dataset
Publisher: Springer Science and Business Media LLC
Date: 07-12-2022
DOI: 10.1038/S41597-022-01774-9
Abstract: Here we provide the ‘Global Spectrum of Plant Form and Function Dataset’, containing species mean values for six vascular plant traits. Together, these traits –plant height, stem specific density, leaf area, leaf mass per area, leaf nitrogen content per dry mass, and diaspore (seed or spore) mass – define the primary axes of variation in plant form and function. The dataset is based on ca. 1 million trait records received via the TRY database (representing ca. 2,500 original publications) and additional unpublished data. It provides 92,159 species mean values for the six traits, covering 46,047 species. The data are complemented by higher-level taxonomic classification and six categorical traits (woodiness, growth form, succulence, adaptation to terrestrial or aquatic habitats, nutrition type and leaf type). Data quality management is based on a probabilistic approach combined with comprehensive validation against expert knowledge and external information. Intense data acquisition and thorough quality control produced the largest and, to our knowledge, most accurate compilation of empirically observed vascular plant species mean traits to date.
TRY plant trait database – enhanced coverage and open access
Publisher: Wiley
Date: 31-12-2019
DOI: 10.1111/GCB.14904
Abstract: Plant traits—the morphological, anatomical, physiological, biochemical and phenological characteristics of plants—determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to bio ersity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait‐based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits—almost complete coverage for ‘plant growth form’. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait–environmental relationships. These traits have to be measured on in idual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives.
Assessing the generality of global leaf trait relationships
Publisher: Wiley
Date: 03-02-2005
DOI: 10.1111/J.1469-8137.2005.01349.X
Abstract: Global-scale quantification of relationships between plant traits gives insight into the evolution of the world's vegetation, and is crucial for parameterizing vegetation-climate models. A database was compiled, comprising data for hundreds to thousands of species for the core 'leaf economics' traits leaf lifespan, leaf mass per area, photosynthetic capacity, dark respiration, and leaf nitrogen and phosphorus concentrations, as well as leaf potassium, photosynthetic N-use efficiency (PNUE), and leaf N : P ratio. While mean trait values differed between plant functional types, the range found within groups was often larger than differences among them. Future vegetation-climate models could incorporate this knowledge. The core leaf traits were intercorrelated, both globally and within plant functional types, forming a 'leaf economics spectrum'. While these relationships are very general, they are not universal, as significant heterogeneity exists between relationships fitted to in idual sites. Much, but not all, heterogeneity can be explained by variation in s le size alone. PNUE can also be considered as part of this trait spectrum, whereas leaf K and N : P ratios are only loosely related.
Transdisciplinary synthesis for ecosystem science, policy and management: The Australian experience
Publisher: Elsevier BV
Date: 11-2015
Specific Leaf Area and Dry Matter Content Estimate Thickness in Laminar Leaves
Publisher: Oxford University Press (OUP)
Date: 13-09-2005
DOI: 10.1093/AOB/MCI264
The global spectrum of plant form and function
Publisher: Springer Science and Business Media LLC
Date: 23-12-2015
DOI: 10.1038/NATURE16489
Abstract: Earth is home to a remarkable ersity of plant forms and life histories, yet comparatively few essential trait combinations have proved evolutionarily viable in today's terrestrial biosphere. By analysing worldwide variation in six major traits critical to growth, survival and reproduction within the largest s le of vascular plant species ever compiled, we found that occupancy of six-dimensional trait space is strongly concentrated, indicating coordination and trade-offs. Three-quarters of trait variation is captured in a two-dimensional global spectrum of plant form and function. One major dimension within this plane reflects the size of whole plants and their parts the other represents the leaf economics spectrum, which balances leaf construction costs against growth potential. The global plant trait spectrum provides a backdrop for elucidating constraints on evolution, for functionally qualifying species and ecosystems, and for improving models that predict future vegetation based on continuous variation in plant form and function.
An evolutionary perspective on leaf economics: phylogenetics of leaf mass per area in vascular plants
Publisher: Wiley
Date: 07-2014
DOI: 10.1002/ECE3.1087
A starting guide to root ecology: strengthening ecological concepts and standardising root classification, sampling, processing and trait measurements
Publisher: Wiley
Date: 05-10-2021
DOI: 10.1111/NPH.17572
Abstract: In the context of a recent massive increase in research on plant root functions and their impact on the environment, root ecologists currently face many important challenges to keep on generating cutting‐edge, meaningful and integrated knowledge. Consideration of the below‐ground components in plant and ecosystem studies has been consistently called for in recent decades, but methodology is disparate and sometimes inappropriate. This handbook, based on the collective effort of a large team of experts, will improve trait comparisons across studies and integration of information across databases by providing standardised methods and controlled vocabularies. It is meant to be used not only as starting point by students and scientists who desire working on below‐ground ecosystems, but also by experts for consolidating and broadening their views on multiple aspects of root ecology. Beyond the classical compilation of measurement protocols, we have synthesised recommendations from the literature to provide key background knowledge useful for: (1) defining below‐ground plant entities and giving keys for their meaningful dissection, classification and naming beyond the classical fine‐root vs coarse‐root approach (2) considering the specificity of root research to produce sound laboratory and field data (3) describing typical, but overlooked steps for studying roots (e.g. root handling, cleaning and storage) and (4) gathering metadata necessary for the interpretation of results and their reuse. Most importantly, all root traits have been introduced with some degree of ecological context that will be a foundation for understanding their ecological meaning, their typical use and uncertainties, and some methodological and conceptual perspectives for future research. Considering all of this, we urge readers not to solely extract protocol recommendations for trait measurements from this work, but to take a moment to read and reflect on the extensive information contained in this broader guide to root ecology, including sections I–VII and the many introductions to each section and root trait description. Finally, it is critical to understand that a major aim of this guide is to help break down barriers between the many subdisciplines of root ecology and ecophysiology, broaden researchers’ views on the multiple aspects of root study and create favourable conditions for the inception of comprehensive experiments on the role of roots in plant and ecosystem functioning.
The worldwide leaf economics spectrum
Publisher: Springer Science and Business Media LLC
Date: 04-2004
DOI: 10.1038/NATURE02403
LOTVS: a global collection of permanent vegetation plots
Publisher: Cold Spring Harbor Laboratory
Date: 10-2021
LOTVS: A global collection of permanent vegetation plots
Publisher: Wiley
Date: 03-2022
DOI: 10.1111/JVS.13115
Functional linkages between leaf traits and net photosynthetic rate: reconciling empirical and mechanistic models
Publisher: Wiley
Date: 08-2005
Challenging Theophrastus: A common core list of plant traits for functional ecology
Publisher: Wiley
Date: 10-1999
DOI: 10.2307/3237076
Related Organisations
Ecole Nationale Supérieure Agronomique De Montpellier
Location: France
Related Funding Activities
No related grants have been discovered for Eric Garnier.