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dc.contributor.authorBoada, Jordi-
dc.contributor.authorSanmartí, Neus-
dc.contributor.authorSelden, Rebecca L.-
dc.contributor.authorLucas Forcadell, Arturo-
dc.contributor.authorPérez, Marta M.-
dc.contributor.authorAlcoverro, Teresa-
dc.contributor.authorRomero, Javier-
dc.date.accessioned2015-05-25T10:21:03Z-
dc.date.available2015-05-25T10:21:03Z-
dc.date.issued2015-
dc.identifier.citationJournal of Experiemntal Marine Biology and Ecology 471 : 17-22 (2015)es_ES
dc.identifier.issn0022-0981-
dc.identifier.urihttp://hdl.handle.net/10261/115708-
dc.description6 páginas, 3 figuras,3 tablas.es_ES
dc.description.abstractMeasuring the strength of trophic interactions in marine systems has been central to our understanding of community structuring. Sea urchin tethering has been the method of choice to evaluate rates of predation in marine benthic ecosystems. As standardly practiced, this method involves piercing the urchin test, potentially introducing significantmethodological artifacts thatmay influence survival or detection by predators.Herewe assess possible artifacts of tethering comparing invasive (pierced) and non-invasive tethering techniques using the sea urchin Paracentrotus lividus. Specifically, we looked at how degree of confinement and high water temperature (first order artifacts) and predator guild and size of the prey (second order artifacts) affect the survival and/or detectability of pierced urchins. Our results show that first order artifacts only arise when pierced sea urchins are placed in sheltered bayswith confined waters, especiallywhenwater temperature reaches extremely high levels. Prey detectability did not increase in pierced sea urchins for the most common predators. Also, test piercing did not alter the preferences of predators for given prey sizes. Weconclude that the standard tethering technique is a robust method to test relative rates of sea urchin predation. However, local conditions could increasemortality of the tethered urchin in sheltered bays or in very high temperature regimes. Under these conditions, adequate pierced controls (within predator exclusions) need to be included in assays to evaluate artifactual sources of mortality.es_ES
dc.description.sponsorshipThe Spanish Ministry of Science and Innovation (projects CTM2010- 22273-C02-01-02 and CTM2013-48027-C03-R) and the Spanish National Research Council (project CSIC-201330E062) funded this research. The Spanish Ministry of Science and Innovation supported J. B. (scholarship BES-2011-043630).es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsopenAccesses_ES
dc.subjectExperimental ecologyes_ES
dc.subjectTagginges_ES
dc.subjectParacentrotus lividuses_ES
dc.subjectPredationes_ES
dc.subjectPrey detectiones_ES
dc.subjectPrey mortalityes_ES
dc.titleEvaluating potential artifacts of tethering techniques to estimate predation on sea urchinses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.jembe.2015.05.011-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.jembe.2015.05.011es_ES
dc.relation.csices_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
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