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Temporal niche differentiation of parasites sharing the same plant host: oak powdery mildew as a case study

hal.structure.identifierInstitut de Génétique, Environnement et Protection des Plantes [IGEPP]
dc.contributor.authorHAMELIN, Frédéric
hal.structure.identifierMathématiques, Informatique et STatistique pour l'Environnement et l'Agronomie [MISTEA]
hal.structure.identifierEcologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes [UMR Eco&Sols]
dc.contributor.authorBISSON, Anne
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDESPREZ LOUSTAU, Marie-Laure
hal.structure.identifierUnité Mixte de Recherche en Santé Végétale (INRA/ENITA) [UMRSV]
dc.contributor.authorFABRE, Frédéric
hal.structure.identifierBiological control of artificial ecosystems [BIOCORE]
hal.structure.identifierInstitut Sophia Agrobiotech [ISA]
dc.contributor.authorMAILLERET, Ludovic
dc.date.issued2016-11
dc.identifier.issn2150-8925
dc.description.abstractEnPlant diseases are often caused by complexes of closely related parasite species. The coexistence of species sharing the same niche challenges the competitive exclusion principle. Here, we performed the mathematical analysis of a generic model of sibling parasite species coexistence based on seasonality. We showed that coexistence through temporal niche partitioning is biologically plausible as it occurred in a significant part of the parameter space of the model. Moreover, the reversal of species relative frequencies (i.e., the most frequent species at the beginning of the season becoming the last frequent at the end) can occur without compromising the long-term coexistence of the two species. We provided data showing that this reversal pattern does repeat over years in the case of two sibling species responsible for oak powdery mildew (Erysiphe alphitoides and Erysiphe quercicola) in Europe. Last, the model was fitted to the data and satisfactorily described the population dynamics of oak powdery mildew species. The seasonal succession of these two plant pathogen species provides one of the few examples of coexistence by temporal niche partitioning at the scale of the season caused by exploitative competition. We discuss whether evolutionary branching may have led to temporal niche differentiation in this system.
dc.description.sponsorshipUne approche basée sur les traits d'histoire de vie des champignons phytopathogènes pour faire le lien entre fitness individuelle et stratégies écologiques. - ANR-13-BSV7-0011
dc.language.isoen
dc.publisherEcological Society of America
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enepidemiology
dc.subject.enseasonality
dc.subject.encoexistence
dc.subject.enpathogen
dc.subject.entrade-off
dc.subject.ensemidiscrete model
dc.title.enTemporal niche differentiation of parasites sharing the same plant host: oak powdery mildew as a case study
dc.typeArticle de revue
dc.identifier.doi10.1002/ecs2.1517
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Phytopathologie et phytopharmacie
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Interactions entre organismes
bordeaux.journalEcosphere
bordeaux.pagee01517
bordeaux.volume7
bordeaux.issue11
bordeaux.peerReviewedoui
hal.identifierhal-01402248
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01402248v1
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