Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-5622
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dc.contributor.authorWeber, Michael-
dc.contributor.authorTacail, Théo-
dc.contributor.authorLugli, Federico-
dc.contributor.authorClauss, Marcus-
dc.contributor.authorWeber, Katrin-
dc.contributor.authorLeichliter, Jennifer-
dc.contributor.authorWinkler, Daniela E.-
dc.contributor.authorMertz-Kraus, Regina-
dc.contributor.authorTütken, Thomas-
dc.date.accessioned2021-02-02T09:21:50Z-
dc.date.available2021-02-02T09:21:50Z-
dc.date.issued2020-
dc.identifier.urihttps://openscience.ub.uni-mainz.de/handle/20.500.12030/5626-
dc.description.abstractStrontium isotopes in biogenic apatite, especially enamel, are widely employed to determine provenance and track migration in palaeontology and archaeology. Body tissues record the 87Sr/86Sr of bioavailable Sr of ingested food and water. To identify non-local individuals, knowledge of the 87Sr/86Sr of a non-migratory population is required. However, varying factors such as tissue turnover rates, feeding selectivity, Sr content, digestibility of food, and the ingestion of mineral dust can influence body tissue 87Sr/86Sr. To evaluate the Sr contribution of diet and water to mammalian hard tissues 87Sr/86Sr, controlled feeding studies are necessary. Here we present 87Sr/86Sr from controlled feeding experiments with two rodent species (Rattus norvegicus, Cavia porcellus). Due to the continuous and fast incremental growth of rat and guinea pig incisors (~0.1 – 0.5 mm/day), their enamel is expected to record isotopic dietary changes. For Experiment-1: Diet Switch, animals were switched from their respective supplier food to a pelleted experimental diet containing either insect-, plant-, or meat-meal and a staggered-sampling approach was used to monitor the 87Sr/86Sr changes in rat incisor enamel and bone over the course of the experiment. In Experiment-2: Basic Diets, separated cohorts (n = 6) of rats and guinea pigs were fed one of the three pelleted diets and received tap water for 54 days. While the rat incisors showed a complete tissue turnover, the slower-growing guinea pig incisors partially retained supplier diet-related isotopic compositions. In addition, one group of rats fed plant-meal pellets received Sr-rich mineral water, demonstrating that drinking water can be an important Sr source in addition to diet. Additionally, a leaching experiment showed that only a small fraction of diet-related Sr is bioavailable. Finally, in Experiment-3: Dust Addition, guinea pigs were fed pellets with and without addition of 4% of isotopically distinct dust (loess or kaolin). Animals that received kaolin-containing pellets displayed increased enamel 87Sr/86Sr. Intra-population 87Sr/86Sr variability within each feeding group was small and thus we conclude that it should not affect interpretations of 87Sr/86Sr in provenance studies. However, the differences between bulk food and leachate 87Sr/86Sr highlight the importance of Sr bioavailability for provenance studies and Sr isoscapes.en_GB
dc.description.sponsorshipDFG, Open Access-Publizieren Universität Mainz / Universitätsmedizin Mainzde
dc.language.isoengde
dc.rightsCC BY*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.en*
dc.subject.ddc550 Geowissenschaftende_DE
dc.subject.ddc550 Earth sciencesen_GB
dc.subject.ddc590 Tiere (Zoologie)de_DE
dc.subject.ddc590 Zoological sciencesen_GB
dc.titleStrontium uptake and intra-population 87Sr/86Sr variability of bones and teeth : controlled feeding experiments with rodents (Rattus norvegicus, Cavia porcellus)en_GB
dc.typeZeitschriftenaufsatzde
dc.identifier.doihttp://doi.org/10.25358/openscience-5622-
jgu.type.dinitypearticleen_GB
jgu.type.versionPublished versionde
jgu.type.resourceTextde
jgu.organisation.departmentFB 09 Chemie, Pharmazie u. Geowissensch.de
jgu.organisation.number7950-
jgu.organisation.nameJohannes Gutenberg-Universität Mainz-
jgu.rights.accessrightsopenAccess-
jgu.journal.titleFrontiers in Ecology and Evolutionde
jgu.journal.volume8de
jgu.pages.alternative569940de
jgu.publisher.year2020-
jgu.publisher.nameFrontiers Mediade
jgu.publisher.placeLausannede
jgu.publisher.urihttps://doi.org/10.3389/fevo.2020.569940de
jgu.publisher.issn2296-701Xde
jgu.organisation.placeMainz-
jgu.subject.ddccode550de
jgu.subject.ddccode590de
jgu.publisher.doi10.3389/fevo.2020.569940
jgu.organisation.rorhttps://ror.org/023b0x485
Appears in collections:JGU-Publikationen

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