PRINZING, Andreas; PAVOINE, Sandrine; JACTEL, Hervé; HORTAL, Joaquin; HENNEKENS, Stephan M; OZINGA, Wim A; BARTISH, Igor V; HELMUS, Matthew R; KÜHN, Ingolf; MOEN, Daniel S; WEIHER, Evan; BRÄNDLE, Martin; WINTER, Marten; VIOLLE, Cyrille; VENAIL, Patrick; PURSCHKE, Oliver; YGUEL, Benjamin

doi:10.1111/nph.17705

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http://creativecommons.org/licenses/by-nc/

PRINZING, Andreas
Ecosystèmes, biodiversité, évolution [Rennes] [ECOBIO]

PAVOINE, Sandrine
Centre d'Ecologie et des Sciences de la COnservation [CESCO]

JACTEL, Hervé
Biodiversité, Gènes & Communautés [BioGeCo]

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Article de revue

Ce document a été publié dans

New Phytologist. 2021-11, vol. 232, n° 4, p. 1849-1862

Wiley

Résumé en anglais

The functioning of present ecosystems reflects deep evolutionary history of locally co-occurring species if their functional traits show high phylogenetic signal (PS). However, we do not understand what drives local PS. We hypothesize that local PS is high in undisturbed and stressful habitats - either due to ongoing local assembly of species that maintained ancestral traits, or past evolutionary maintenance of ancestral traits within habitat species-pools, or both. We quantified PS and diversity of 10 traits within 6704 local plant communities across 38 Dutch habitat types differing in disturbance or stress. Mean local PS varied 50-fold among habitat types, often independently of phylogenetic or trait diversity. Mean local PS decreased with disturbance but showed no consistent relationship to stress. Mean local PS exceeded species-pool PS, reflecting non-random subsampling from the pool. Disturbance or stress related more strongly to mean local than to species-pool PS. Disturbed habitats harbour species with evolutionary divergent trait values, likely driven by ongoing, local assembly of species: environmental fluctuations might maintain different trait values within lineages through an evolutionary storage effect. If functional traits do not reflect phylogeny, ecosystem functioning might not be contingent on the presence of particular lineages, and lineages might establish evolutionarily novel interactions.< Réduire

Mots clés en anglais

Community assembly

disturbance and stress

functional diversity

niche conservatism

phylogenetic diversity

phylogenetic signal

species pool

trait evolution

DOI

http://dx.doi.org/10.1111/nph.17705

Projet Européen

Ecophysiological and biophysical constraints on domestication in crop plants

Project ANR

Sorbonne Universités à Paris pour l'Enseignement et la Recherche
Biological and Cultural Diversities : Origins, Evolution, Interactions, Future - ANR-10-LABX-0003

Origine

Importé de hal

Unités de recherche

BioGeCo (Biodiversité Gènes & Communautés) - UMR 1202