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You are here: Home / PDFs on demand / Bibliographical References of PDFs on demand / The return of the variance: intraspecific variability in community ecology

Cyrille Violle, Brian Enquist, Brian McGill, Lin Jiang, Cecile Albert, Catherine Hulshof, Vincent Jung and Julie Messier (2012)

The return of the variance: intraspecific variability in community ecology

Trends in Ecology & Evolution, 27(4):244-252.

Despite being recognized as a promoter of diversity and a condition for local coexistence decades ago, the importance of intraspecific variance has been neglected over time in community ecology. Recently, there has been a new emphasis on intraspecific variability. Indeed, recent developments in trait-based community ecology have underlined the need to integrate variation at both the intraspecific as well as interspecific level. We introduce new T-statistics ('T' for trait), based on the comparison of intraspecific and interspecific variances of functional traits across organizational levels, to operationally incorporate intraspecific variability into community ecology theory. We show that a focus on the distribution of traits at local and regional scales combined with original analytical tools can provide unique insights into the primary forces structuring communities.

intraspecific variation, mean field approach, species diversity, T-statistics, functional trait, genetic diversity, functional diversity, species coexistence, individual specialization, limiting similarity, niche overlap, community assembly, competitive-exclusion, variance, phylogenetic structure, plant-communities, genotypic diversity
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