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Year-round variation in the isotopic niche of Scopoli's shearwater (Calonectris diomedea) breeding in contrasting sea regions of the Mediterranean Sea

2022Journal article Open access
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dc.contributor.authorCampioni, Letizia
dc.contributor.authorDell'Omo, Giacomo
dc.contributor.authorVizzini, Salvatrice
dc.contributor.authorDe Pascalis, Federico
dc.contributor.authorBadalamenti, Fabio
dc.contributor.authorMassa, Bruno
dc.contributor.authorRUBOLINI, DIEGO
dc.contributor.authorCecere, Jacopo G.
dc.date.accessioned2022-07-21T17:47:05Z
dc.date.available2022-07-21T17:47:05Z
dc.date.issued2022
dc.description.abstractTop marine predators are key components of marine food webs. Among them, long-distance migratory seabirds, which travel across different marine ecosystems over the year, may experience important year-round changes in terms of oceanographic conditions and availability of trophic resources. We tested whether this was the case in the Scopoli’s shearwater (Calonectris diomedea), a trans-equatorial migrant and top predator, by sampling birds breeding in three environmentally different regions of the Mediterranean Sea. The analysis of positional data and stable isotopes (δ13 C and δ15N) of target feathers revealed that birds from the three regions were spatially segregated during the breeding period while they shared non-breeding areas in the Atlantic Ocean. Isotopic baseline levels of N and C (meso-zooplankton) were significantly different among marine regions during breeding. Such variation was reflected at the higher trophic levels of pelagic and demersal fish muscles as well as in shearwater feathers grown in the Mediterranean. δ15N- and δ13C-adjusted values of shearwaters were significantly different among populations suggesting that birds from different breeding areas relied on prey species from different trophic levels. Conversely, the non-breeding spatial and isotopic niches overlapped greatly among the three populations. Shearwater trophic niches during breeding were narrower and segregated compared to the non-breeding period, revealing a high plasticity in trophic resource use. Overall, this study highlights seasonal and region-specific use of trophic resources by Scopoli’s shearwater, suggesting a broad trophic plasticity and possibly a high adaptability to environmental changes.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCampioni, L., Dell’Omo, G., Vizzini, S., De Pascalis, F., Badalamenti, F., Massa, B., Rubolini, D., & Cecere, J. G. (2022). Year-round variation in the isotopic niche of Scopoli’s shearwater (Calonectris diomedea) breeding in contrasting sea regions of the Mediterranean Sea. Marine Environmental Research, 178.pt_PT
dc.identifier.doi10.1016/j.marenvres.2022.105650pt_PT
dc.identifier.issn01411136
dc.identifier.urihttp://hdl.handle.net/10400.12/8742
dc.language.isoporpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevier BVpt_PT
dc.relationMarine and Environmental Sciences Centre
dc.relationMarine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMediterranean Seapt_PT
dc.subjectMeso-zooplanktonpt_PT
dc.subjectMigrationpt_PT
dc.subjectSeabirdspt_PT
dc.subjectStable isotopespt_PT
dc.subjectTrophic ecologypt_PT
dc.titleYear-round variation in the isotopic niche of Scopoli's shearwater (Calonectris diomedea) breeding in contrasting sea regions of the Mediterranean Seapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04292%2F2020/PT
oaire.citation.conferencePlaceNetherlandspt_PT
oaire.citation.endPage1-10pt_PT
oaire.citation.startPage105650pt_PT
oaire.citation.titleMarine Environmental Researchpt_PT
oaire.citation.volume178pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameCampioni
person.familyNameDell'Omo
person.familyNameVizzini
person.familyNameDe Pascalis
person.familyNameBadalamenti
person.familyNameRUBOLINI
person.familyNameCecere
person.givenNameLetizia
person.givenNameGiacomo
person.givenNameSalvatrice
person.givenNameFederico
person.givenNameFabio
person.givenNameDIEGO
person.givenNameJacopo G.
person.identifier.ciencia-id1016-2368-D535
person.identifier.ciencia-id511D-FE42-D7F9
person.identifier.orcid0000-0002-6319-6931
person.identifier.orcid0000-0002-9601-9675
person.identifier.orcid0000-0002-7127-7555
person.identifier.orcid0000-0002-1414-7770
person.identifier.orcid0000-0002-2395-454X
person.identifier.orcid0000-0003-2703-5783
person.identifier.orcid0000-0002-4925-2730
person.identifier.ridF-2851-2011
person.identifier.scopus-author-id27267546800
person.identifier.scopus-author-id7006625458
person.identifier.scopus-author-id57205077305
person.identifier.scopus-author-id6603638447
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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