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- W2945183490 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 621:69-81 (2019) - DOI: https://doi.org/10.3354/meps12999 Disentangling ecosystem engineering from short-term biotic effects of a strong invader on a native foundation species Barbara Proença1,*, Marine Romuald1, Isabelle Auby2, Florian Ganthy2, Aldo Sottolichio1, Richard Michalet1 1University of Bordeaux, U.M.R. 5805 EPOC, 33405 Talence cedex, France 2IFREMER Arcachon, 33120 Arcachon, France *Corresponding author: barbara.proenca@u-bordeaux.fr ABSTRACT: Ecosystem engineering effects of dominant species on habitats and consequently on other species are likely to propagate through time at longer distance than the close neighbourhood. Such effects are important to disentangle from short-term biotic effects, especially in biological invasions, as engineering can explain changes in invasion rates over the course of the invasion. We assessed the contribution and spatial dynamics of ecosystem engineering effects of a strong invader, the cordgrass Spartina anglica, on Zostera noltei, a foundation seagrass species of muddy intertidal systems in Europe. Z. noltei transplants were grown at different positions along transects crossing intact S. anglica patches, cut patches and nearby bare sediment on tidal flats in the Bay of Arcachon (France), in order to separate ecosystem engineering effects from short-term biotic effects and evaluate their likely spatial propagation. Bed altimetry, sediment redox potential and granulometry were measured in all treatments. Within Spartina patches, we found strong negative ecosystem engineering effects of the cordgrass on the seagrass associated with increased sediment elevation and relative fine sediment content. Up to 2 m outside the patch, we found significant negative ecosystem engineering effects and positive short-term biotic effects, but they were weak and counterbalanced each other. We conclude that S. anglica can transform a marine muddy intertidal habitat into a drier and more oxidized terrestrial habitat, no longer suitable for the seagrass. Although these effects may propagate at several metres from a patch, they appeared to be too weak to likely affect the seagrass at the scale of a whole bay. KEY WORDS: Biological invasion · Competition · Ecosystem engineer · Spartina anglica ·Zostera noltei Full text in pdf format PreviousNextCite this article as: Proença B, Romuald M, Auby I, Ganthy F, Sottolichio A, Michalet R (2019) Disentangling ecosystem engineering from short-term biotic effects of a strong invader on a native foundation species. Mar Ecol Prog Ser 621:69-81. https://doi.org/10.3354/meps12999 Export citation Mail this link - Contents Mailing Lists - RSS Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 621. Online publication date: July 04, 2019 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2019 Inter-Research." @default.
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- W2945183490 title "Disentangling ecosystem engineering from short-term biotic effects of a strong invader on a native foundation species" @default.
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