The productivity-biodiversity relationship varies across diversity dimensions

Philipp Brun (), Niklaus E. Zimmermann, Catherine H. Graham, Sébastien Lavergne, Loïc Pellissier, Tamara Münkemüller and Wilfried Thuiller
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Philipp Brun: Swiss Federal Research Institute (WSL)
Niklaus E. Zimmermann: Swiss Federal Research Institute (WSL)
Catherine H. Graham: Swiss Federal Research Institute (WSL)
Sébastien Lavergne: Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, LECA, Laboratoire d’Écologie Alpine
Loïc Pellissier: Swiss Federal Research Institute (WSL)
Tamara Münkemüller: Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, LECA, Laboratoire d’Écologie Alpine
Wilfried Thuiller: Univ. Grenoble Alpes, CNRS, Univ. Savoie Mont Blanc, LECA, Laboratoire d’Écologie Alpine

Nature Communications, 2019, vol. 10, issue 1, 1-11

Abstract: Abstract Understanding the processes that drive the dramatic changes in biodiversity along the productivity gradient remains a major challenge. Insight from simple, bivariate relationships so far has been limited. We combined >11,000 community plots in the French Alps with a molecular phylogeny and trait information for >1200 plant species to simultaneously investigate the relationships between all major biodiversity dimensions and satellite-sensed productivity. Using an approach that tests for differential effects of species dominance, species similarity and the interplay between phylogeny and traits, we demonstrate that unimodal productivity–biodiversity relationships only dominate for taxonomic diversity. In forests, trait and phylogenetic diversity typically increase with productivity, while in grasslands, relationships shift from unimodal to declining with greater land-use intensity. High productivity may increase trait/phylogenetic diversity in ecosystems with few external constraints (forests) by promoting complementary strategies, but under external constraints (managed grasslands) successful strategies are similar and thus the best competitors may be selected.

Date: 2019
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DOI: 10.1038/s41467-019-13678-1

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