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dc.contributor.authorValdivia, Nelson
dc.contributor.authorGollety, Claire
dc.contributor.authorMigne, Aline
dc.contributor.authorDavoult, Dominique
dc.contributor.authorMolis, Marcus
dc.identifier.citationValdivia , N , Gollety , C , Migne , A , Davoult , D & Molis , M 2012 , ' Stressed but stable : Canopy loss decreased species synchrony and metabolic variability in an intertidal hard-bottom community ' PLoS One , vol. 7 , no. 5 , e36541 .
dc.identifier.otherPURE: 51298901
dc.identifier.otherPURE UUID: 936b5800-04c3-4224-bb09-5ce8c88946b9
dc.identifier.otherScopus: 84860504624
dc.descriptionThis work was supported by the Sustainable Development, Global Change and Ecosystems Programme of the European Community’s Sixth Framework Programme (contract # GOCE-CT-2003-505446)en
dc.description.abstractThe temporal stability of aggregate community properties depends on the dynamics of the component species. Since species growth can compensate for the decline of other species, synchronous species dynamics can maintain stability (i.e. invariability) in aggregate properties such as community abundance and metabolism. In field experiments we tested the separate and interactive effects of two stressors associated with storminess–loss of a canopy-forming species and mechanical disturbances–on species synchrony and community respiration of intertidal hard-bottom communities on Helgoland Island, NE Atlantic. Treatments consisted of regular removal of the canopy-forming seaweed Fucus serratus and a mechanical disturbance applied once at the onset of the experiment in March 2006. The level of synchrony in species abundances was assessed from estimates of species percentage cover every three months until September 2007. Experiments at two sites consistently showed that canopy loss significantly reduced species synchrony. Mechanical disturbance had neither separate nor interactive effects on species synchrony. Accordingly, in situ measurements of CO2-fluxes showed that canopy loss, but not mechanical disturbances, significantly reduced net primary productivity and temporal variation in community respiration during emersion periods. Our results support the idea that compensatory dynamics may stabilise aggregate properties. They further suggest that the ecological consequences of the loss of a single structurally important species may be stronger than those derived from smaller-scale mechanical disturbances in natural ecosystems.
dc.relation.ispartofPLoS Oneen
dc.rights(c) 2012 Valdivia et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en
dc.subjectCommunity propertyen
dc.subjectMultiple stressorsen
dc.subjectSpecies synchronyen
dc.subjectTemporal variationen
dc.subjectCompensatory dynamicsen
dc.subjectQH Natural historyen
dc.titleStressed but stable : Canopy loss decreased species synchrony and metabolic variability in an intertidal hard-bottom communityen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Sediment Ecology Research Groupen
dc.contributor.institutionUniversity of St Andrews.Marine Alliance for Science & Technology Scotlanden
dc.description.statusPeer revieweden

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