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      Epibiotic pressure contributes to biofouling invader success

      Leonard, Kaeden; Hewitt, Chad L.; Campbell, Marnie L.; Primo, Campbell; Miller, Steven D.
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      Epibiotic pressure.pdf
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      DOI
       10.1038/s41598-017-05470-2
      Link
       www.nature.com
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      Leonard, K., Hewitt, C. L., Campbell, M. L., Primo, C., & Miller, S. D. (2017). Epibiotic pressure contributes to biofouling invader success. Scientific Reports, 7(1). https://doi.org/10.1038/s41598-017-05470-2
      Permanent Research Commons link: https://hdl.handle.net/10289/11229
      Abstract
      Reduced competition is a frequent explanation for the success of many introduced species. In benthic marine biofouling communities, space limitation leads to high rates of overgrowth competition. Some species can utilise other living organisms as substrate (epibiosis), proffering a competitive advantage for the epibiont. Additionally, some species can prevent or reduce epibiotic settlement on their surfaces and avoid being basibionts. To test whether epibiotic pressure differs between native and introduced species, we undertook ex situ experiments comparing bryozoan larval settlement to determine if introduced species demonstrate a greater propensity to settle as epibionts, and a reduced propensity to be basibionts, than native species. Here we report that introduced species opportunistically settle on any space (bare, native, or introduced), whereas native species exhibit a strong tendency to settle on and near other natives, but avoid settling on or near introduced basibionts. In addition, larvae of native species experience greater larval wastage (mortality) than introduced species, both in the presence and absence of living substrates. Introduced species’ ability to settle on natives as epibionts, and in turn avoid epibiosis as basibionts, combined with significantly enhanced native larval wastage, provides a comprehensive suite of competitive advantages contributing to the invasion success of these biofouling species.
      Date
      2017
      Type
      Journal Article
      Publisher
      Nature Publishing Group
      Rights
      This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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      • Computing and Mathematical Sciences Papers [1455]
      • Science and Engineering Papers [3143]
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