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Functional biogeography of oceanic islands and the scaling of functional diversity in the Azores

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dc.contributor.authorWhittaker, Robert J.
dc.contributor.authorRigal, François
dc.contributor.authorBorges, Paulo A. V.
dc.contributor.authorCardoso, Pedro
dc.contributor.authorTerzopoulou, Sofia
dc.contributor.authorCasanoves, Fernando
dc.contributor.authorPla, Laura
dc.contributor.authorGuilhaumon, François
dc.contributor.authorLadle, Richard J.
dc.contributor.authorTriantis, Kostas A.
dc.date.accessioned2015-04-24T14:59:43Z
dc.date.available2015-04-24T14:59:43Z
dc.date.issued2014
dc.date.updated2014-09-23T18:17:16Z
dc.description.abstractAnalyses of species-diversity patterns of remote islands have been crucial to the development of biogeographic theory, yet little is known about corresponding patterns in functional traits on islands and how, for example, they may be affected by the introduction of exotic species. We collated trait data for spiders and beetles and used a functional diversity index (FRic) to test for nonrandomness in the contribution of endemic, other native (also combined as indigenous), and exotic species to functional-trait space across the nine islands of the Azores. In general, for both taxa and for each distributional category, functional diversity increases with species richness, which, in turn scales with island area. Null simulations support the hypothesis that each distributional group contributes to functional diversity in proportion to their species richness. Exotic spiders have added novel trait space to a greater degree than have exotic beetles, likely indicating greater impact of the reduction of immigration filters and/or differential historical losses of indigenous species. Analyses of species occurring in native-forest remnants provide limited indications of the operation of habitat filtering of exotics for three islands, but only for beetles. Although the general linear (not saturating) pattern of trait-space increase with richness of exotics suggests an ongoing process of functional enrichment and accommodation, further work is urgently needed to determine how estimates of extinction debt of indigenous species should be adjusted in the light of these findings.en
dc.identifier.citationWhittaker, R.J.; Rigal, F.; Borges, P.A.V.; Cardoso, P.; Terzopoulou, S.; Casanoves, F.; Pla, L.; Guilhaumon, F.; Ladle, R.J.; Triantis, K.A. (2014). "Functional biogeography of oceanic islands and the scaling of functional diversity in the Azores", Proceedings of the National Academy of Sciences, 111(38): 13709-13714. DOI: 10.1073/pnas.1218036111.por
dc.identifier.doi10.1073/pnas.1218036111
dc.identifier.issn0027-8424
dc.identifier.urihttp://hdl.handle.net/10400.3/3419
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherNational Academy of Sciencespor
dc.relation.publisherversionwww.pnas.org/cgi/doi/10.1073/pnas.1218036111por
dc.subjectArthropodsen
dc.subjectAssembly Rulesen
dc.subjectHabitat Destructionen
dc.subjectIsland Biogeographyen
dc.subjectSaturationen
dc.titleFunctional biogeography of oceanic islands and the scaling of functional diversity in the Azoresen
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/BPD/44306/2008
oaire.citation.conferencePlaceWashington, USApor
oaire.citation.endPage13714por
oaire.citation.issue(38)por
oaire.citation.startPage13709por
oaire.citation.titleProceedings of the National Academy of Sciencesen
oaire.citation.volume111por
oaire.fundingStreamSFRH
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isProjectOfPublicationd425d29d-f799-4dc1-9f9e-3441d5085d01
relation.isProjectOfPublication.latestForDiscoveryd425d29d-f799-4dc1-9f9e-3441d5085d01

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