2021
DOI: 10.1016/j.jhevol.2020.102925
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Isotopic calcium biogeochemistry of MIS 5 fossil vertebrate bones: application to the study of the dietary reconstruction of Regourdou 1 Neandertal fossil

Abstract: Isotopic calcium biogeochemistry of MIS 5 fossil vertebrate bones: Application to the study of the dietary reconstruction of Regourdou 1 Neandertal fossil.

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Cited by 18 publications
(11 citation statements)
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“…Bone data are likely to reflect isotope fractionations of both the trophic effect and the bone‐forming process as observed for Ca (Appendix S2: Figure S1). The lower δ 44/40 Ca values in bones relative to muscles (0.32 ± 0.06‰) agree with the reported offset in Ca stable isotopic composition between soft tissue and mineralized tissue (Dodat et al, 2021; Skulan & DePaolo, 1999; Tacail et al, 2014, 2020). Consequently, it is reasonable to assume that a slight 88 Sr fractionation also exists between bone apatite and blood.…”
Section: Discussionsupporting
confidence: 86%
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“…Bone data are likely to reflect isotope fractionations of both the trophic effect and the bone‐forming process as observed for Ca (Appendix S2: Figure S1). The lower δ 44/40 Ca values in bones relative to muscles (0.32 ± 0.06‰) agree with the reported offset in Ca stable isotopic composition between soft tissue and mineralized tissue (Dodat et al, 2021; Skulan & DePaolo, 1999; Tacail et al, 2014, 2020). Consequently, it is reasonable to assume that a slight 88 Sr fractionation also exists between bone apatite and blood.…”
Section: Discussionsupporting
confidence: 86%
“…These studies found a significant decrease in δ 44/40 Ca values in mineralized tissues, such as bone and tooth enamel, compared to dietary sources with increasing trophic level. For vertebrates, it is assumed that this 44 Ca depletion along the trophic chain is mainly driven by isotopic fractionation during bone mineralization from the blood and by kidney regulation of the Ca cycle (Channon et al, 2015;Dodat et al, 2021;Hassler et al, 2021;Heuser et al, 2016;Reynard et al, 2010;Skulan et al, 2007;Skulan & DePaolo, 1999;Tacail et al, 2014Tacail et al, , 2020. Furthermore, direct uptake of Ca from the water through gills could buffer the diet-bone Ca isotopic fractionation as suggested for marine teleost and elasmobranch fish species (Clementz et al, 2003;Martin et al, 2015;Tacail et al, 2020).…”
Section: Introductionmentioning
confidence: 99%
“…1,4 As a result, Ca isotope systematics are being used to track a variety of processes including early solar system evolution, crust-mantle processes, paleotemperature reconstruction, and paleontological and medical processes. [5][6][7][8][9][10][11][12][13][14][15][16][17][18] Two analytical approaches have been used for Ca isotopic determination, namely double-spike using thermal ionization mass spectrometry (DS-TIMS) and standard-sample bracketing using multi-collector inductively coupled plasma-mass spectrometry (SSB-MC-ICP-MS). High-precision measurements of Ca isotopes were rst achieved in 1978, where Russell et al 19 used the double-spike ( 42 Ca- 48 Ca) technique on a TIMS to obtain the ratio between the two most abundant isotopes 40 Ca and 44 Ca, denoted as d 44/40 Ca.…”
Section: Introductionmentioning
confidence: 99%
“…Fat has a high energy value, and enables gluconeogenesis, a metabolic process occurring primarily in the liver and kidneys that produces carbohydrates from protein and fat (Speth and Spielmann, 1983;Speth, 2010). These advantages therefore go a long way to explaining why Paleolithic human groups sought to harvest fat wherever it was available, including fat contained in the marrow and cancellous tissue of very large and large mammals long bones (Costamagno and Rigaud, 2013;Smith et al, 2015;Ben-Dor et al, 2016;Blasco et al, 2019a;Boschian et al, 2019;Morin, 2020;Dodat et al, 2021). The preparation of broths based on fat contained in bone tissue observed among the Nunamiut by Binford (1978) suggests that such processes may have existed in Paleolithic societies (Speth, 2015).…”
Section: Extant Data On Animal Nutrients and Human Biologymentioning
confidence: 99%
“…Furthermore, as data are cumulative, we only have an overall picture of the diet and it is impossible to gauge the diet consumed on a daily basis. Moreover, it is difficult to discern the ratio of meat in the diet of past hominins, and especially for the Late Pliocene and Early Pleistocene periods, although some new isotopic analyses using barium, calcium or zinc isotopes seem quite relevant for this purpose (Balter et al, 2012;Jaouen et al, 2016;Martin et al, 2020;Dodat et al, 2021).…”
Section: The Problem Of the Scarcity Of Archeological Evidence And Ti...mentioning
confidence: 99%