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Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes

2021Journal article Restricted access
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dc.contributor.authorLeclerc, Jean-Charles
dc.contributor.authorBettignies, Thibaut de
dc.contributor.authorBettignies, Florian de
dc.contributor.authorChristie, Hartvig
dc.contributor.authorFranco, João N.
dc.contributor.authorLeroux, Cédric
dc.contributor.authorDavoult, Dominique
dc.contributor.authorPedersen, Morten F.
dc.contributor.authorFilbee‑Dexter, Karen
dc.contributor.authorWernberg, Thomas
dc.date.accessioned2021-08-05T14:50:45Z
dc.date.available2021-08-05T14:50:45Z
dc.date.issued2021
dc.descriptionFunding Funding for this work was provided by the Australian Research Council (TW: FT110100174, TW, KFD: DP190100058), the University of Western Australia Research Collaboration Awards (TW, TdB, JCL, DD, JNF, HC), the France-Australia Science Innovation Collaboration 2014 program (TdB, TW, JCL, DD), Metabomer and Corsaire Core Facility (CL), the French Government run by the National Research Agency with regards to the investment expenditure programme IDEALG ANR-10-BTBR-04 (JCL, DD) and the Norwegian Research Council (TW, MFP, KFD, KELPEX 255085/E40).
dc.description.abstractAs the environment is getting warmer and species are redistributed, consumers can be forced to adjust their interactions with available prey, and this could have cascading effects within food webs. To better understand the capacity for foraging flexibility, our study aimed to determine the diet variability of an ectotherm omnivore inhabiting kelp forests, the sea urchin Echinus esculentus, along its entire latitudinal distribution in the northeast Atlantic. Using a combination of gut content and stable isotope analyses, we determined the diet and trophic position of sea urchins at sites in Portugal (42° N), France (49° N), southern Norway (63° N), and northern Norway (70° N), and related these results to the local abundance and distribution of putative food items. With mean estimated trophic levels ranging from 2.4 to 4.6, omnivory and diet varied substantially within and between sites but not across latitudes. Diet composition generally reflected prey availability within epiphyte or understorey assemblages, with local affinities demonstrating that the sea urchin adjusts its foraging to match the small-scale distribution of food items. A net “preference” for epiphytic food sources was found in northern Norway, where understorey food was limited compared to other regions. We conclude that diet change may occur in response to food source redistribution at multiple spatial scales (microhabitats, sites, regions). Across these scales, the way that key consumers alter their foraging in response to food availability can have important implication for food web dynamics and ecosystem functions along current and future environmental gradients.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLeclerc, JC., de Bettignies, T., de Bettignies, F. et al. Local flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudes. Oecologia 196, 441–453 (2021). https://doi.org/10.1007/s00442-021-04936-5pt_PT
dc.identifier.doi10.1007/s00442-021-04936-5pt_PT
dc.identifier.issn0029-8549
dc.identifier.issn1432-1939
dc.identifier.urihttp://hdl.handle.net/10400.8/6017
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relation.publisherversionhttps://link.springer.com/content/pdf/10.1007/s00442-021-04936-5.pdfpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectFood webpt_PT
dc.subjectOpportunismpt_PT
dc.subjectTrophic plasticitypt_PT
dc.subjectUrchin grazingpt_PT
dc.subjectLaminaria hyperboreapt_PT
dc.subjectEchinus esculentuspt_PT
dc.titleLocal flexibility in feeding behaviour and contrasting microhabitat use of an omnivore across latitudespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage453pt_PT
oaire.citation.startPage441pt_PT
oaire.citation.titleOecologiapt_PT
oaire.citation.volume196pt_PT
person.familyNameLeclerc
person.familyNameFranco
person.givenNameJean-Charles
person.givenNameJoao N
person.identifier153718
person.identifier.ciencia-id7E1B-4C01-D6BC
person.identifier.orcid0000-0003-3663-3785
person.identifier.orcid0000-0002-8249-5224
person.identifier.ridT-1400-2018
person.identifier.scopus-author-id36903257100
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationbbcc6b6f-6c0c-4798-938a-cdd2fbcbcb52
relation.isAuthorOfPublicationeb34c96c-a44e-4fe7-aa47-2dfe4aaa76d1
relation.isAuthorOfPublication.latestForDiscoveryeb34c96c-a44e-4fe7-aa47-2dfe4aaa76d1

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