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Intraspecific diversity in an ecological engineer functionally trumps interspecific diversity in shaping community structure

dc.contributor.authorNicastro, Katy
dc.contributor.authorMcQuaid, Christopher D.
dc.contributor.authorDievart, Alexia
dc.contributor.authorZardi, Gerardo, I
dc.date.accessioned2021-06-18T16:25:47Z
dc.date.available2021-06-18T16:25:47Z
dc.date.issued2020-11
dc.description.abstractCan intraspecific diversity functionally supersede interspecific diversity? Recent studies have established the ecological effects of intraspecific variation on a number of ecosystem dynamics including resilience and productivity and we hypothesised that they may functionally exceed those of species diversity. We focused on a coastal ecosystem dominated by two coexisting bioengineering mussel species, one of which, Perna perna, displays two distinct phylogeographic lineages. A manipulative field experiment revealed greater habitat structural complexity and a more benign microscale environment within beds of the eastern lineage than those of the western lineage or the second species (Mytilus galloprovincialis)
dc.description.abstractthe latter two did not differ. Similarly, while infaunal species abundance and biomass differed significantly between the two lineages of Perna, there was no such difference between Mytilus and the western Perna lineage. the evenness and diversity of associated infaunal assemblages responded differently. Diversity differed relatively weakly between species, while evenness showed a very strong difference between conspecific lineages. Our results show that variation within a species can functionally supersede diversity between species. As the two P. perna lineages have different physiological tolerances, we expect them to react differently to environmental change. Our findings indicate that predicting the ecosystem-level consequences of climate change requires an understanding of the relative strengths of within- and between-species differences in functionality. (C) 2020 Elsevier B.V. All rights reserved.
dc.description.sponsorshipNational Research Foundation of South AfricaNational Research Foundation - South Africa [64801]
dc.description.sponsorshipFundacao para a Ciencia e Tecnologia (FCT-MEC, Portugal) [UID/Multi/04326/2019, IF/01413/2014/CP1217/CT0004]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.scitotenv.2020.140723
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.1/15670
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.subjectGenetic lineages
dc.subjectMussel
dc.subjectEcosystem functioning
dc.subjectBiodiversity
dc.subject.otherEnvironmental Sciences & Ecology
dc.titleIntraspecific diversity in an ecological engineer functionally trumps interspecific diversity in shaping community structure
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage140723
oaire.citation.titleScience of the Total Environment
oaire.citation.volume743
person.familyNameNicastro
person.givenNameKaty
person.identifier.ciencia-id3E12-714B-AFE5
person.identifier.orcid0000-0002-7071-141X
person.identifier.ridD-2259-2012
person.identifier.scopus-author-id12646675100
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication6268844a-b0a2-4aa5-9616-c3afaba0e2ca
relation.isAuthorOfPublication.latestForDiscovery6268844a-b0a2-4aa5-9616-c3afaba0e2ca

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