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Tytuł:
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Effect of fine-scale habitat differences on algal colonisation in a coral-dominated subtropical reef.
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Autorzy:
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DE Carvalho LL; Programa de Pós-Graduação de Biologia Marinha e Ambientes Costeiros, Universidade Federal Fluminense, Instituto de Biologia, Outeiro de São João Batista, s/n°, 24001-970 Niterói, RJ, Brazil.
Villaça RC; Programa de Pós-Graduação de Biologia Marinha e Ambientes Costeiros, Universidade Federal Fluminense, Instituto de Biologia, Outeiro de São João Batista, s/n°, 24001-970 Niterói, RJ, Brazil.
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Źródło:
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Anais da Academia Brasileira de Ciencias [An Acad Bras Cienc] 2021 Jul 19; Vol. 93 (3), pp. e20191191. Date of Electronic Publication: 2021 Jul 19 (Print Publication: 2021).
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Rio De Janeiro : Academia Brasileira De Ciencias
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MeSH Terms:
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Anthozoa*
Coral Reefs*
Animals ; Ecosystem
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Entry Date(s):
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Date Created: 20210721 Date Completed: 20210723 Latest Revision: 20210723
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Update Code:
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20240105
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DOI:
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10.1590/0001-3765202120191191
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PMID:
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34287453
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Maintaining the coexistence of algae and corals depends on the interactions between them. We investigated these interactions to assess: (1) recruitment patterns of algal turfs over time in dead areas on live corals; (2) the influence of fine-scale differences in coral-dominated environments on algal colonisation; (3) the influence of coral as a substrate for algal recruitment; (4) the invasion potential of algal turf on live coral tissue. This study compared algal colonisation directly on dead or damaged coral areas with algal colonisation on recruitment plates in coral-dominated or -free areas at 23, 154, and 230 days. We also monitored coral colonies over 1.5 years. Filamentous and articulated coralline algae were primarily evident in the early colonisation, reaching stability after 154 days. On a fine scale, the coral-dominated environment showed an increase in number of algal species and coverage. However, coral substrate was selective, with fewer species recruited to this substrate compared to the artificial plates. Furthermore, the competitive dynamics between corals and algal turfs did not result in a winner over time. Thus, algal turf colonisation was influenced not only by coral substrate but also by the reef environment on a fine scale.