Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/112770
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dc.contributor.authorConnell, S.en
dc.contributor.authorDoubleday, Z.en
dc.contributor.authorFoster, N.en
dc.contributor.authorHamlyn, S.en
dc.contributor.authorHarley, C.en
dc.contributor.authorHelmuth, B.en
dc.contributor.authorKelaher, B.en
dc.contributor.authorNagelkerken, I.en
dc.contributor.authorRodgers, K.en
dc.contributor.authorSarà, G.en
dc.contributor.authorRussell, B.en
dc.date.issued2018en
dc.identifier.citationEcology, 2018; 99(5):1005-1010en
dc.identifier.issn0012-9658en
dc.identifier.issn1939-9170en
dc.identifier.urihttp://hdl.handle.net/2440/112770-
dc.description.abstractEcologically dominant species often define ecosystem states, but as human disturbances intensify, their subordinate counterparts increasingly displace them. We consider the duality of disturbance by examining how environmental drivers can simultaneously act as a stressor to dominant species and as a resource to subordinates. Using a model ecosystem, we demonstrate that CO₂ -driven interactions between species can account for such reversals in dominance; i.e., the displacement of dominants (kelp forests) by subordinates (turf algae). We established that CO₂ enrichment had a direct positive effect on productivity of turfs, but a negligible effect on kelp. CO₂ enrichment further suppressed the abundance and feeding rate of the primary grazer of turfs (sea urchins), but had an opposite effect on the minor grazer (gastropods). Thus, boosted production of subordinate producers, exacerbated by a net reduction in its consumption by primary grazers, accounts for community change (i.e., turf displacing kelp). Ecosystem collapse, therefore, is more likely when resource enrichment alters competitive dominance of producers, and consumers fail to compensate. By recognizing such duality in the responses of interacting species to disturbance, which may stabilize or exacerbate change, we can begin to understand how intensifying human disturbances determine whether or not ecosystems undergo phase shifts.en
dc.description.statementofresponsibilitySean D. Connell, Zoë A. Doubleday, Nicole R. Foster, Sarah B. Hamlyn, Christopher D.G. Harley, Brian Helmuth, Brendan P. Kelaher, Ivan Nagelkerken, Kirsten L. Rodgers, Gianluca Sará, and Bayden D. Russellen
dc.language.isoenen
dc.publisherWileyen
dc.rights© 2018 by the Ecological Society of Americaen
dc.subjectCalcifying herbivores; climate change; CO₂; kelp forest; phase shift; turf algaeen
dc.titleThe duality of ocean acidification as a resource and a stressoren
dc.typeJournal articleen
dc.identifier.rmid0030086409en
dc.identifier.doi10.1002/ecy.2209en
dc.relation.granthttp://purl.org/au-research/grants/arc/DP150104263en
dc.relation.granthttp://purl.org/au-research/grants/arc/FT0991953en
dc.relation.granthttp://purl.org/au-research/grants/arc/FT120100183en
dc.identifier.pubid418293-
pubs.library.collectionEcology, Evolution and Landscape Science publicationsen
pubs.library.teamDS14en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidConnell, S. [0000-0002-5350-6852]en
dc.identifier.orcidDoubleday, Z. [0000-0003-0045-6377]en
dc.identifier.orcidFoster, N. [0000-0001-7159-7391]en
dc.identifier.orcidNagelkerken, I. [0000-0003-4499-3940]en
dc.identifier.orcidRussell, B. [0000-0003-1282-9978]en
Appears in Collections:Ecology, Evolution and Landscape Science publications

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