Environment and shipping drive environmental DNA beta-diversity among commercial ports

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dc.citation.firstpage6696en_US
dc.citation.issueNumber23en_US
dc.citation.journalTitleMolecular Ecologyen_US
dc.citation.lastpage6709en_US
dc.citation.volumeNumber32en_US
dc.contributor.authorAndrés, Joseen_US
dc.contributor.authorCzechowski, Paulen_US
dc.contributor.authorGrey, Erinen_US
dc.contributor.authorSaebi, Mandanaen_US
dc.contributor.authorAndres, Karaen_US
dc.contributor.authorBrown, Christopheren_US
dc.contributor.authorChawla, Niteshen_US
dc.contributor.authorCorbett, James J.en_US
dc.contributor.authorBrys, Reinen_US
dc.contributor.authorCassey, Phillipen_US
dc.contributor.authorCorrea, Nancyen_US
dc.contributor.authorDeveney, Marty R.en_US
dc.contributor.authorEgan, Scott P.en_US
dc.contributor.authorFisher, Joshua P.en_US
dc.contributor.authorvanden Hooff, Rianen_US
dc.contributor.authorKnapp, Charles R.en_US
dc.contributor.authorLeong, Sandric Chee Yewen_US
dc.contributor.authorNeilson, Brian J.en_US
dc.contributor.authorPaolucci, Esteban M.en_US
dc.contributor.authorPfrender, Michael E.en_US
dc.contributor.authorPochardt, Meredith R.en_US
dc.contributor.authorProwse, Thomas A. A.en_US
dc.contributor.authorRumrill, Steven S.en_US
dc.contributor.authorScianni, Chrisen_US
dc.contributor.authorSylvester, Franciscoen_US
dc.contributor.authorTamburri, Mario N.en_US
dc.contributor.authorTherriault, Thomas W.en_US
dc.contributor.authorYeo, Darren C. J.en_US
dc.contributor.authorLodge, David M.en_US
dc.date.accessioned2024-05-08T18:56:11Zen_US
dc.date.available2024-05-08T18:56:11Zen_US
dc.date.issued2023en_US
dc.description.abstractThe spread of nonindigenous species by shipping is a large and growing global problem that harms coastal ecosystems and economies and may blur coastal biogeographical patterns. This study coupled eukaryotic environmental DNA (eDNA) metabarcoding with dissimilarity regression to test the hypothesis that ship-borne species spread homogenizes port communities. We first collected and metabarcoded water samples from ports in Europe, Asia, Australia and the Americas. We then calculated community dissimilarities between port pairs and tested for effects of environmental dissimilarity, biogeographical region and four alternative measures of ship-borne species transport risk. We predicted that higher shipping between ports would decrease community dissimilarity, that the effect of shipping would be small compared to that of environment dissimilarity and shared biogeography, and that more complex shipping risk metrics (which account for ballast water and stepping-stone spread) would perform better. Consistent with our hypotheses, community dissimilarities increased significantly with environmental dissimilarity and, to a lesser extent, decreased with ship-borne species transport risks, particularly if the ports had similar environments and stepping-stone risks were considered. Unexpectedly, we found no clear effect of shared biogeography, and that risk metrics incorporating estimates of ballast discharge did not offer more explanatory power than simpler traffic-based risks. Overall, we found that shipping homogenizes eukaryotic communities between ports in predictable ways, which could inform improvements in invasive species policy and management. We demonstrated the usefulness of eDNA metabarcoding and dissimilarity regression for disentangling the drivers of large-scale biodiversity patterns. We conclude by outlining logistical considerations and recommendations for future studies using this approach.en_US
dc.identifier.citationAndrés, J., Czechowski, P., Grey, E., Saebi, M., Andres, K., Brown, C., Chawla, N., Corbett, J. J., Brys, R., Cassey, P., Correa, N., Deveney, M. R., Egan, S. P., Fisher, J. P., vanden Hooff, R., Knapp, C. R., Leong, S. C. Y., Neilson, B. J., Paolucci, E. M., … Lodge, D. M. (2023). Environment and shipping drive environmental DNA beta-diversity among commercial ports. Molecular Ecology, 32(23), 6696–6709. https://doi.org/10.1111/mec.16888en_US
dc.identifier.digitalEnvironment-and-shippingen_US
dc.identifier.doihttps://doi.org/10.1111/mec.16888en_US
dc.identifier.urihttps://hdl.handle.net/1911/115682en_US
dc.language.isoengen_US
dc.publisherWileyen_US
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial (CC BY-NC) license. Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/en_US
dc.titleEnvironment and shipping drive environmental DNA beta-diversity among commercial portsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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