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  Genotypic variability enhances the reproducibility of an ecological study

Milcu, A., Puga-Freitas, R., Ellison, A. M., Blouin, M., Scheu, S., Girin, T., et al. (2018). Genotypic variability enhances the reproducibility of an ecological study. Nature Ecology & Evolution, 2(2), 279-287. doi:10.1038/s41559-017-0434-x.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-C3C1-3 Version Permalink: https://hdl.handle.net/21.11116/0000-0000-3CE9-7
Genre: Journal Article

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 Creators:
Milcu, Alexandru, Author
Puga-Freitas, Ruben, Author
Ellison, Aaron M, Author
Blouin, Manuel, Author
Scheu, Stefan, Author
Girin, Thomas, Author
Frechet, Gregoire, Author
Rose, Laura, Author
Scherer-Lorenzen, Michael, Author
Barot, Sebastien, Author
Lata, Jean-Christophe, Author
Cesarz, Simone, Author
Eisenhauer, Nico, Author
Gigon, Agnes, Author
Weigelt, Alexandra, Author
Hansart, Amandine, Author
Greiner, Anna, Author
Pando, Anne, Author
Gessler, Arthur, Author
Grignani, Carlo, Author
Assandri, Davide, AuthorGleixner, Gerd1, Author           Le Galliard, Jean-Francois, AuthorUrban-Mead, Katherine, AuthorZavattaro, Laura, AuthorMuller, Marina E.H., AuthorLange, Markus1, Author           Lukac, Martin, AuthorBonkowski, Michael, AuthorMannerheim, Neringa, AuthorBuchmann, Nina, AuthorButenschoen, Olaf, AuthorRotter, Paula, AuthorSeyhun, Rahme, AuthorDevidal, Sebastien, AuthorKayler, Zachary, AuthorRoy, Jacques, Author more..
Affiliations:
1Molecular Biogeochemistry Group, Dr. G. Gleixner, Department Biogeochemical Processes, Prof. S. E. Trumbore, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497775              

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 Abstract: Many scientific disciplines currently are experiencing a reproducibility crisis because numerous scientific findings cannot be repeated consistently. A novel but controversial hypothesis postulates that stringent levels of environmental and biotic standardization in experimental studies reduces reproducibility by amplifying impacts of lab-specific environmental factors not accounted for in study designs. A corollary to this hypothesis is that the deliberate introduction of controlled systematic variability (CSV) in experimental designs can increase reproducibility. We tested this hypothesis using a multi-laboratory microcosm study in which the same ecological experiment was repeated in 14 laboratories across Europe. Each laboratory introduced environmental and genotypic CSV within and among replicated microcosms established in either growth chambers (with stringent control of environmental conditions) or glasshouses (with more variable environmental conditions). The introduction of genotypic CSV led to lower among-laboratory variability in growth chambers, indicating increased reproducibility, but had no significant effect in glasshouses where reproducibility also was lower. Environmental CSV had little effect on reproducibility. Although there are multiple causes for the reproducibility crisis, deliberately including genetic variation may be a simple solution for increasing the reproducibility of ecological studies performed in controlled environments.

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 Dates: 2017-11-282018-01-152018-02
 Publication Status: Issued
 Pages: -
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 Rev. Type: -
 Identifiers: Other: BGC2673
DOI: 10.1038/s41559-017-0434-x
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Title: Nature Ecology & Evolution
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 2 (2) Sequence Number: - Start / End Page: 279 - 287 Identifier: ISSN: 2397-334X
CoNE: https://pure.mpg.de/cone/journals/resource/2397-334X