Author

Olivier Dézerald

IfremerORCID 0000-0002-9987-9865Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Signature Assays, Organisms & Methods

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Research Focus:ecology & biodiversity· 3 Approach:experimental assay· 2 Assay:metagenomics· 1 Organism:multiple species· 1 Approach:statistical model· 1

Frequent Co-Authors

Alexandrine PannardiD· 1 shared Allan RaffardiD· 1 shared Andrew P. HendryiD· 1 shared B. Bonnet· 1 shared Caroline GorzerinoiD· 1 shared Emilien GaignéiD· 1 shared Éric ÉdelineiD· 1 shared ERIC J. PETITiD· 1 shared

Activity by Year

2026-2026 · peak 3/yr

Co-Author Collaboration Network

10 top collaborators · 13 mutual co-author links

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1 shared paperEcology

Alexandrine PannardORCID

Mutual co-authors in cluster

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3 papers

Recent·Most cited

Variable performances of commercial eDNA inventories challenge their use for surveying stream fish communities

Jean‐Marc Roussel, Erwan Quéméré, B. Bonnet, Raphaël Covain, Olivier Dézerald, Géraldine Lassalle, Pierre Yves Le Bail, ERIC J. PETIT, Gaétan Pottier, Grégory Quartarollo, Régis Vigouroux, Hadrien Lalagüe

This paper compares eDNA metabarcoding results from four companies to an exhaustive fish inventory, finding significant variation in species detection rates and highlighting challenges for ecological assessments.

bioRxiv · May 19, 2026 · PreprintEcology

Biological invasion drives ecosystem state and metabolism across tipping points

Emilien Gaigné, Olivier Dézerald, Caroline Gorzerino, Julie Coudreuse, Yoann Bennevault, Alexandrine Pannard, Éric Édeline

This study shows that crayfish invasion caused a regime shift in pond ecosystems, altering metabolism and state with long-term consequences.

bioRxiv · Apr 21, 2026 · PreprintEcology

Behavior and Physiology Outpace Form When Linking Traits to Ecological Responses Within Populations: A Meta-Analysis

Thibaut Rota, Allan Raffard, Iris Lang, Quentin Petitjean, Lisa Jacquin, Olivier Dézerald, Simon Blanchet, Andrew P. Hendry, Régis Céréghino

This study meta-analyzes over a thousand effect sizes to show that trait variability within populations influences ecological responses more strongly for physiology and behavior than morphology.

The American Naturalist · Feb 9, 2026Peer-reviewedEcology