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Carbon, nitrogen, and oxygen stable isotopes in modern tooth enamel: A case study from Gorongosa National Park, central Mozambique

2022Journal article Open access
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dc.contributor.authorLüdecke, Tina
dc.contributor.authorLeichliter, Jennifer N.
dc.contributor.authorAldeias, Vera
dc.contributor.authorBamford, Marion K.
dc.contributor.authorBiro, Dora
dc.contributor.authorBraun, David R.
dc.contributor.authorCapelli, Cristian
dc.contributor.authorCybulski, Jonathan D.
dc.contributor.authorDuprey, Nicolas N.
dc.contributor.authorFerreira da Silva, Maria J.
dc.contributor.authorForeman, Alan D.
dc.contributor.authorHabermann, Jörg M.
dc.contributor.authorHaug, Gerald H.
dc.contributor.authorMartínez, Felipe I.
dc.contributor.authorMathe, Jacinto
dc.contributor.authorMulch, Andreas
dc.contributor.authorSigman, Daniel M.
dc.contributor.authorVonhof, Hubert
dc.contributor.authorBobe, Rene
dc.contributor.authorCarvalho, Susana
dc.contributor.authorMartínez-García, Alfredo
dc.date.accessioned2023-03-01T13:44:51Z
dc.date.available2023-03-01T13:44:51Z
dc.date.issued2022
dc.description.abstractThe analyses of the stable isotope ratios of carbon (delta C-13), nitrogen (delta N-15), and oxygen (delta O-18) in animal tissues are powerful tools for reconstructing the feeding behavior of individual animals and characterizing trophic interactions in food webs. Of these biomaterials, tooth enamel is the hardest, most mineralized vertebrate tissue and therefore least likely to be affected by chemical alteration (i.e., its isotopic composition can be preserved over millions of years), making it an important and widely available archive for biologists and paleontologists. Here, we present the first combined measurements of delta C-13, delta N-15, and delta O-18 in enamel from the teeth of modern fauna (herbivores, carnivores, and omnivores) from the well-studied ecosystem of Gorongosa National Park (GNP) in central Mozambique. We use two novel methods to produce high-precision stable isotope enamel data: (i) the "oxidation-denitrification method," which permits the measurement of mineral-bound organic nitrogen in tooth enamel (delta N-15(enamel)), which until now, has not been possible due to enamel's low organic content, and (ii) the "cold trap method," which greatly reduces the sample size required for traditional measurements of inorganic delta C-13(enamel) and delta O-18(enamel) (from >= 0.5 to <= 0.1 mg), permitting analysis of small or valuable teeth and high-resolution serial sampling of enamel. The stable isotope results for GNP fauna reveal important ecological information about the trophic level, dietary niche, and resource consumption. delta N-15(enamel) values clearly differentiate trophic level (i.e., carnivore delta N-15(enamel) values are 4.0 parts per thousand higher, on average, than herbivores), delta C-13(enamel) values distinguish C-3 and/or C-4 biomass consumption, and delta O-18(enamel) values reflect local meteoric water (delta O-18(water)) in the park. Analysis of combined carbon, nitrogen, and oxygen stable isotope data permits geochemical separation of grazers, browsers, omnivores, and carnivores according to their isotopic niche, while mixed-feeding herbivores cannot be clearly distinguished from other dietary groups. These results confirm that combined C, N, and O isotope analyses of a single aliquot of tooth enamel can be used to reconstruct diet and trophic niches. Given its resistance to chemical alteration, the analysis of these three isotopes in tooth enamel has a high potential to open new avenues of research in (paleo)ecology and paleontology.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3389/fevo.2022.958032pt_PT
dc.identifier.issn2296-701X
dc.identifier.urihttp://hdl.handle.net/10400.1/19173
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Mediapt_PT
dc.relationNGS-51478Rpt_PT
dc.relationNGS-57285Rpt_PT
dc.relationNGS-51140R-18pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDietpt_PT
dc.subjectEcologypt_PT
dc.subjectTrophic level reconstructionpt_PT
dc.subjectFood webspt_PT
dc.subjectVertebratept_PT
dc.subjectSavannapt_PT
dc.titleCarbon, nitrogen, and oxygen stable isotopes in modern tooth enamel: A case study from Gorongosa National Park, central Mozambiquept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleFrontiers in Ecology and Evolutionpt_PT
oaire.citation.volume10pt_PT
person.familyNamealdeias
person.familyNameBobe
person.familyNameCarvalho
person.givenNamevera
person.givenNameRené
person.givenNameSusana
person.identifier.ciencia-id9A14-DE8D-BABF
person.identifier.ciencia-idC91A-A704-6E70
person.identifier.orcid0000-0002-7680-182X
person.identifier.orcid0000-0001-9059-2203
person.identifier.orcid0000-0003-4542-3720
person.identifier.scopus-author-id55052739100
person.identifier.scopus-author-id23977799600
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication82512493-f3d1-4d00-9e67-2b43e50f67c8
relation.isAuthorOfPublication61cfc780-975d-4eee-a87c-e69118aa5bb1
relation.isAuthorOfPublication1f6a7971-6b67-4f1a-9b1d-f18729d02e9e
relation.isAuthorOfPublication.latestForDiscovery1f6a7971-6b67-4f1a-9b1d-f18729d02e9e

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