Sucesión de communidades epibentónicas de fondos duros submareales colonizando superficies ocultas y expuestas en el norte de Chile

Aldo S. Pacheco, Jürgen Laudien, Martin Thiel, Olaf Heilmayer, Marcelo Oliva

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

14 Citas (Scopus)

Resumen

The biodiversity of hard-bottom substrata comprises species growing on exposed rock and in hidden microhabitats, such as cracks and crevices. This study examines the succession of epibenthic organisms colonizing an artificial substratum with one surface exposed and one surface hidden on a vertical wall off northern Chile. On each sampling date species coverage of three replicate panels on both surfaces was assessed. The hidden surface was dominated in terms of coverage by the bryozoans Membranipora isabelleana and Lagenicella variabilis, while algae were absent. In contrast, the exposed surface was dominated by encrusting red corallines and the red alga Rhodymenia corallina. At the end of the experimental period both surfaces were dominated by colonial suspension feeders, but showed a different community structure and successional pattern. On the exposed surface, competitive exclusion was identified as an important aspect of succession, whereas on the hidden surface this pattern was not observed. These findings have implications for overall biodiversity, because pioneer species that are not able to survive long periods on exposed surfaces become restricted to hidden surfaces, from where they spread laterally. Thus, hidden microhabitats provide refuges for certain species, and may play an important role in the overall succession on rock faces. We conclude that examination of hidden microhabitats is necessary in order to fully understand succession in hard-bottom habitats.

Título traducido de la contribuciónHard-bottom succession of subtidal epibenthic communities colonizing hidden and exposed surfaces off northern Chile
Idioma originalEspañol
Páginas (desde-hasta)147-154
Número de páginas8
PublicaciónScientia Marina
Volumen74
N.º1
DOI
EstadoPublicada - 2010

Nota bibliográfica

Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.

Palabras clave

  • Epibenthic hard-bottom communities
  • Habitat complexity
  • Humboldt Current System
  • Peninsula Mejillones
  • Succession

Huella

Profundice en los temas de investigación de 'Sucesión de communidades epibentónicas de fondos duros submareales colonizando superficies ocultas y expuestas en el norte de Chile'. En conjunto forman una huella única.

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