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dc.contributor.authorQuillfeldt, Petra
dc.contributor.authorBugoni, Leandro
dc.contributor.authorMcGill, Rona A.R.
dc.contributor.authorMasello, Juan F.
dc.contributor.authorFurness, Robert W.
dc.date.accessioned2021-09-28T08:19:43Z
dc.date.available2021-09-28T08:19:43Z
dc.date.issued2008
dc.identifier.urihttps://doi.org/10.1007/s00227-008-1048-2
dc.identifier.urihttps://jlupub.ub.uni-giessen.de//handle/jlupub/257
dc.identifier.urihttp://dx.doi.org/10.22029/jlupub-204
dc.description.abstractStable isotopes of growing feathers and blood both represent assimilated diet, and both tissues are used to study the diet and foraging distribution of marine and terrestrial birds. Although most studies have assumed that both tissues represent a difference of one trophic level to diet, the enrichment factors of blood and feathers may differ, especially where endogenous reserves are used as precursors during feather synthesis. In this study, we compare carbon and nitrogen stable isotopes of blood and simultaneously growing feathers of five species of Procellariiformes, representing five genera, different geographical regions and different life stages (chicks and adults). In all species, feathers were enriched in 15N and 13C compared with blood. Isotopic values of carbon and nitrogen were correlated in different tissues growing simultaneously for most species analyzed, suggesting that mathematical corrections could be used to compare different tissues. Our results imply that more care needs to be taken when comparing stable isotope signatures across studies assuming different tissues are equivalent indicators of trophic ecology.de_DE
dc.language.isoende_DE
dc.rightsNamensnennung - Nicht kommerziell 2.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/2.0/
dc.subject.ddcddc:570de_DE
dc.subject.ddcddc:590de_DE
dc.titleDifferences in stable isotopes in blood and feathers of seabirds are consistent across species, age and latitude: implications for food web studiesde_DE
dc.typearticlede_DE
local.affiliationFB 08 - Biologie und Chemie
local.source.spage593de_DE
local.source.epage598de_DE
local.source.journaltitleMarine Biologyde_DE
local.source.volume155de_DE
local.source.number6de_DE


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