A global perspective on the trophic geography of sharks

dc.contributor.authorBird, Christopher S.
dc.contributor.authorVeríssimo, Ana
dc.contributor.authorMagozzi, Sarah
dc.contributor.authorAbrantes, Kátya G.
dc.contributor.authorAguilar, Àlex
dc.contributor.authorAl-Reasi, Hassan
dc.contributor.authorBarnett, Adam
dc.contributor.authorBethea, Dana M.
dc.contributor.authorBiais, Gérard
dc.contributor.authorBorrell Thió, Assumpció
dc.contributor.authorBouchoucha, Marc
dc.contributor.authorBoyle, Mariah
dc.contributor.authorBrooks, Edward J.
dc.contributor.authorBrunnschweiler, Juerg
dc.contributor.authorBustamante, Paco
dc.contributor.authorCarlisle, Aaron
dc.contributor.authorCatarino, Diana
dc.contributor.authorCaut, Stephane
dc.contributor.authorCherel, Yves
dc.contributor.authorChouvelon, Tiphaine
dc.contributor.authorChurchill, Diana
dc.contributor.authorCiancio, Javier
dc.contributor.authorClaes, Julien
dc.contributor.authorColaço, Ana
dc.contributor.authorCourtney, Dean
dc.contributor.authorCresson, Pierre
dc.contributor.authorDaly, Ryan
dc.contributor.authorde Necker, Leigh
dc.contributor.authorEndo, Tetsuya
dc.contributor.authorFigueiredo, Ivone
dc.contributor.authorFrisch, Ashley J.
dc.contributor.authorHansen, Joan Holst
dc.contributor.authorHeithaus, Michael
dc.contributor.authorHussey, Nigel E.
dc.contributor.authorIitembu, Johannes
dc.contributor.authorJuanes, Francis
dc.contributor.authorKinney, Michael J.
dc.contributor.authorKiszka, Jeremy J.
dc.contributor.authorKlarian, Sebastian A.
dc.contributor.authorKopp, Dorothée
dc.date.accessioned2018-03-05T10:56:50Z
dc.date.available2018-07-18T22:01:24Z
dc.date.issued2018-01-18
dc.date.updated2018-03-05T10:56:50Z
dc.description.abstractSharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits in trophic interactions between sharks found in different habitats. We show that populations of shelf-dwelling sharks derive a substantial proportion of their carbon from regional pelagic sources, but contain individuals that forage within additional isotopically diverse local food webs, such as those supported by terrestrial plant sources, benthic production and macrophytes. In contrast, oceanic sharks seem to use carbon derived from between 30° and 50° of latitude. Global-scale compilations of stable isotope data combined with biogeochemical modelling generate hypotheses regarding animal behaviours that can be tested with other methodological approaches.
dc.format.extent7 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec676175
dc.identifier.issn2397-334X
dc.identifier.pmid29348645
dc.identifier.urihttps://hdl.handle.net/2445/120429
dc.language.isoeng
dc.publisherNature Publishing Group
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1038/s41559-017-0432-z
dc.relation.ispartofNature Ecology and Evolution, 2018, vol. 2, p. 299-305
dc.relation.urihttps://doi.org/10.1038/s41559-017-0432-z
dc.rights(c) Bird, C. S. et al., 2018
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
dc.subject.classificationTaurons
dc.subject.classificationBiologia marina
dc.subject.classificationEcosistemes
dc.subject.otherSharks
dc.subject.otherMarine biology
dc.subject.otherBiotic communities
dc.titleA global perspective on the trophic geography of sharks
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion

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