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Predation and anthropogenic impact on community structure of boulder beaches

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dc.contributor.author Aldana, M.
dc.contributor.author Maturana, D.
dc.contributor.author Pulgar, J.
dc.contributor.author Garcia-Huidobro, M.R.
dc.date.accessioned 2017-04-27T19:27:39Z
dc.date.available 2017-04-27T19:27:39Z
dc.date.issued 2016
dc.identifier.citation SCIENTIA MARINA, 80 (4):543-551 es
dc.identifier.issn 0214-8358
dc.identifier.other http://dx.doi.org/10.3989/scimar.04444.27A
dc.identifier.uri http://repositorio.unab.cl/xmlui/handle/ria/3348
dc.description Indexación: Web of Science; Scopus. es
dc.description.abstract Predator impacts on intertidal community structure have been studied for rocky platforms, but intertidal boulder fields, a habitat with a greater extension and heterogeneity, have not yet been considered. Keeping in mind that disturbances are considered an important force in determining intertidal habitat diversity, the aims of this work were to describe and quantify boulder field community structure and to assess boulder field community dynamics by proposing possible food webs, taking into consideration predatory and anthropogenic impacts. These aims were achieved by installing predator-exclusion cages outfitted with rocks that were monitored monthly over one year in two study zones, a Management and Exploitation Area for Benthic Resources (MEABR, Playa Chica) and open-access area (OAA, Playa Grande). For both study zones, juveniles were the dominant observed ontogenetic state and invertebrate richness and density were higher inside exclusion cages. Furthermore, the MEABR had a differentiated impact on community structure and dynamics in comparison with the OAA. In conclusion, the roles played by boulder fields in intertidal diversity, especially in recruitment and as a nursery zone, are important to consider in management plans. es
dc.description.uri http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1685
dc.language.iso en es
dc.publisher INST CIENCIAS MAR BARCELONA es
dc.subject ROCKY INTERTIDAL ZONE es
dc.subject SHALLOW SUBTIDAL BOULDERS es
dc.subject CENTRAL CHILE es
dc.subject COASTAL GEOMORPHOLOGY es
dc.subject SCARTICHTHYS-VIRIDIS es
dc.subject SPECIES-DIVERSITY es
dc.subject HABITAT STRUCTURE es
dc.subject PATCH SIZE es
dc.subject PATTERNS es
dc.subject DISTURBANCE es
dc.title Predation and anthropogenic impact on community structure of boulder beaches es
dc.title.alternative Depredación e impacto antropogénico sobre la estructura comunitaria de playas de bolones
dc.type Article es


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