New multidimensional functional diversity indices for a multifaceted framework in functional ecology.

@article{Villger2008NewMF,
  title={New multidimensional functional diversity indices for a multifaceted framework in functional ecology.},
  author={S{\'e}bastien Vill{\'e}ger and Norman W. H. Mason and David Mouillot},
  journal={Ecology},
  year={2008},
  volume={89 8},
  pages={
          2290-301
        }
}
Functional diversity is increasingly identified as an important driver of ecosystem functioning. Various indices have been proposed to measure the functional diversity of a community, but there is still no consensus on which are most suitable. Indeed, none of the existing indices meets all the criteria required for general use. The main criteria are that they must be designed to deal with several traits, take into account abundances, and measure all the facets of functional diversity. Here we… 

Figures and Tables from this paper

An index for measuring functional extension and evenness in trait space

A new functional extension and evenness (FEE) index that encompasses two important aspects of functional diversity, based on the straightforward notion that a community has high diversity when its species are distant from each other in trait space is presented.

Functional richness: Overview of indices and underlying concepts

Functional diversity measures: an overview of their redundancy and their ability to discriminate community assembly rules

It is demonstrated that functional diversity indices have the potential to reveal the processes that structure biological communities and to accurately assess functional diversity and establish its relationships with ecosystem functioning and environmental constraints.

How many dimensions are needed to accurately assess functional diversity? A pragmatic approach for assessing the quality of functional spaces

It is shown that using a poor-quality functional space could led to a biased assessment of functional diversity and false ecological conclusions, so this work advises a pragmatic approach consisting of computing all the possible functional spaces and selecting the most parsimonious one.

Decomposing functional β-diversity reveals that low functional β-diversity is driven by low functional turnover in European fish assemblages

A decomposition of functional β-diversity, i.e. the dissimilarity in functional composition between communities, is developed into a functional turnover and a functional nestedness-resultant component.

Measuring the contribution of community members to functional diversity

A novel method for decomposing functional diversity is suggested and it is suggested that the proposed method of calculating functional values expresses more explicitly the contribution of community members to functional diversity and hereby can be used as a simple, yet efficient method for searching for functional keystones in ecological communities or for quantifying the contribution.

Functional Diversity: An Important Measure of Ecosystem Functioning

It can be assumed that, knowledge about a particular ecosystem reveals its richness and evenness which enable an individual knowing about the diversity of functional traits prevailing in the ecosystem which opens up a new way in understanding and carrying out ecology related studies more efficiently and precisely in ecosystem.

Functional diversity exhibits a diverse relationship with area, even a decreasing one

The species accumulation curve and the corresponding FD curve are constructed and a typology of FDARs depending on the facet of FD analyzed is identified, implying a reliance on some functions that may be located in either the center or the periphery of the trait space.

Testing the Link between Functional Diversity and Ecosystem Functioning in a Minnesota Grassland Experiment

This study provides a comprehensive test linking different attributes of functional diversity with ecosystem function for a grassland system and assesses the relationships among these metrics and compares their performances for predicting three key ecosystem functions within a long-term grassland biodiversity experiment.

Measuring the functional redundancy of biological communities: a quantitative guide

The preservation of ecosystem processes under ongoing biotic erosion requires that some species within affected communities perform similar functions, a property that is usually defined as functional
...

References

SHOWING 1-10 OF 35 REFERENCES

Functional regularity: a neglected aspect of functional diversity

A functional regularity index (FRO) is proposed as a measure of functional evenness for situations where species are represented only by a single functional trait value, and species abundances are known.

Functional diversity (FD), species richness and community composition

A means for quantifying functional diversity that may be particularly useful for determining how functional diversity is related to ecosystem functioning is proposed, defined as the total branch length of a functional dendrogram.

Functional redundancy in ecology and conservation

Future research on functional impairment with species loss should focus on identifying which species, functional groups, and ecosystems are most vulnerable to functional impairment from species loss, so that these can be prioritized for management activities directed at maintaining ecosystem function.

Functional diversity: back to basics and looking forward.

It is suggested that non-significant results have a range of alternate explanations that do not necessarily contradict positive effects of functional diversity, and areas for development of techniques used to measure functional diversity are suggested.

HOW DO DIFFERENT MEASURES OF FUNCTIONAL DIVERSITY PERFORM

It is found that species richness and functional group richness explain the least variation in above- ground biomass production within and across grassland biodiversity manipulations at six European locations; functional attribute diversity and FD explain greater variation.

Functional richness, functional evenness and functional divergence: the primary components of functional diversity

It is hoped that the definition of functional diversity and its components will aid in elucidation of the mechanisms behind diversity/ecosystem-function relationships.

Species functional redundancy, random extinctions and the stability of ecosystems

A probabilistic framework is provided that, from any distribution of species number across functional groups, generates specific predictions of how functional groups are lost when species become randomly extinct within a given community.

Conventional functional classification schemes underestimate the relationship with ecosystem functioning.

This work examines the precision of a priori classifications used in 10 experimental grassland systems in Europe and the United States that have found evidence for a significant role of functional plant diversity in governing ecosystem function and suggests that a more nuanced understanding of how the diversity of functional traits of species in an assemblage affects ecosystem functioning is needed.