Validation of red deer's (Cervus elaphus) oxygen isotope composition in enamel carbonate (δ18Oec) to reconstruct paleotemperatures and seasonality: evidence from known specimens from the Iberian peninsula

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Validation of red deer’s ( Cervus elaphus ) oxygen isotope composition in enamel carbonate (δ 18 O ec ) to reconstruct paleotemperatures and seasonality: evidence from known specimens from the Iberian peninsula.

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Background. aldures p.reptnas (091/081) / - (091/0801 = (0%11!) oste.

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(Mid to high latitudes) Temperature Relative humidity Seasonality Source effects Path effects In-cloud, sub-cloud processes Amount of precipitation 5180 precipitation Mix from different time/site Source of water Evaporation Seasonality 5180 drinking water Temperature Relative humidity Physiology Water vapour C02 Excreted water ö180 body water Metabolic water Atmospheric O Structural 02 in food Water in plants Diagenesis (fossils) Amelogenesis 5180 carbonate.

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After Jouzel et al. 1994. After Dansgaard et al. 1994.

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d18O (‰) -5.8780000000000001 -5.3090909090909086 -4.9800000000000004 -5.2372727272727273 -4.2134999999999989 -4.1470000000000002 -3.5322222222222219 -2.7110000000000003 -4.7739999999999991 -5.1027272727272726 -5.9079999999999995 -5.5418181818181811 Tª (ºC) 10.963636363636363 11.227272727272727 12.67272727272727 13.336363636363636 15.290909090909093 18.154545454545453 19.354545454545452 19.981818181818181 18.954545454545457 16.518181818181816 13.145454545454545 11.345454545454546.

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ooz J aweo xodé ooz 0 uomsod 8. . After Tejedor-Rodríguez et al. 2021.

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abstract. Why red deer ? Extant species with a wide geographic /temporal distribution Homeotherm and sedentary D’Angela and Longinelli 1990, Fricke et al. 1998, Stevens et al. 2011 provide a good expectations for its applicability.

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. . Material and methods. . M 3 N=7 4♂, 3♀. Hypoconid 8 to10 samples per tooth 2mm spaced.

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abstract. N=6. abstract. N=1. Santander SCgbSQÜ1.

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Relate climate information of the specific year (δ 18 O mw , temp.) that red deer’s teeth are integrating (δ 18 O ec ): δ 18 O mw : GNIP (GNIP, IAEA/WMO, 2015) closest stations and OIPC (Bowen 2017) Temperature (AEMET stations at the sampled area).

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Cementochronoly to calculate age. E-vu. 22-P50i.

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Transfer functions applied VPDB VSMOW : δ 18 O ec (VSMOW) = 1.03092 [ δ 18 O ec (VPDB) ] + 30.92 Coplen et al., 1983 (NBS 19 by Coplen , 1996 ) δ 18 O ec  δ 18 O dw : δ 18 O dw = [δ 18 O ec - 33.63] / 0.998 ( Iacumin et al.,1996) δ 18 O dw (≈ δ 18 O mw ) temp. ( Rozanski et al., 1992): Temperature (°C) = [δ18Odw + 14.35] / 0.59 Maximum uncertainties in the δ 18 O values: 1.3‰ for Eq.2 and 2.2°C for Eq.3..

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Results and discussion. Locality δ 18 O ec (‰ vs. VPDB*) Max Min Mean Median Range Riaño (N=6) -4,7 -9,3 -7,2 -7,3 4,6 Hosquillo -1,6 -4,1 -3,1 -3,1 2,4.

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— 11 Dist..

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Riano, sp Crown. height Rum Island, I-JK 8 Crcmn heig ht North Croatia Crown. height 111 — RA-13 — Ä"ty85 ¯ 85 Surtæy 94 Grand Teton, WY 821 Hosqui110, sp 8 28 27 S Killarney, IR o Crown _ he ight Crcwn _ ght Crown. height — NMINH 200141.1.

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Riaöo, SP 26 9 24 20 Label RA-13 15 10 Dist. from ERJ.

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ooo -1.00 -2.00 J _3.00 -4 00 RAI, RA13 (this study) WY-2 (Fricke et al. 1998) Stevensetal. 2011 Brown and Chapman, 1991.

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OIPC δ 18 O mw (‰) vs. inferred δ 18 O dw (‰, Eq. 2) differences GNIP δ 18 O mw (‰) vs. inferred δ 18 O dw (‰, Eq. 2) differences Max Min Range Mean Max Min Range Mean RA-1 2.8 1.4 0.7 2.0 3.4 2.1 0.6 2.2 RA-13 3.4 0.0 1.5 0.8 1.0 -1.3 0.4 -0.9 RA-3 -0.2 2.3 1.0 2.9 RA-8 1.6 3.3 2.8 4.0 RA-307 2.8 3.1 RA-111 -0.8 1.5 1.9 3.4 Hos N22 -4.7 -1.9 -5.5 -1.8 RMSD 3.1 2.1 1.2 2.2 2.5 2.8 0.5 2.8.

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Estimated temperature (⁰C, Eq. 3) vs. measured (⁰C, AEMET) differences Max Min Range Mean RA-1 -4.9 0.5 -5.5 3.1 RA-13 -6.4 3.2 -9.6 5.3 RA-3 0.2 1.7 RA-8 -0.8 0.2 RA-307 2.0 RA- 111 4.6 3.6 Hos N22 16.2 9.0 RMSD 5.7 7 7.8 4.5.

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Estimated temperature (⁰C, Eq. 3) vs. measured (⁰C, AEMET) differences Max Min Range Mean RNCR population -5.8 -0.8 -5.0 2.5.

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Conclusions. Enamel δ 18 O carbonate values ( δ 18 O ec ) of sequential sub- samples from red deer third molars show a pattern related to that observed in meteoric waters. This pattern appears highly variable even in individuals born in the same year. Two of the samples show a clear maximum (summer) and minimum (winter) δ 18 O ec value that allowed reconstructing an estimated nine month period for mineralization of the M3 enamel..

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The correspondence between individual maximums, minimums, range, and mean δ 18 O ec values and year-specific climatic data is poor, although the values for the whole of the population appear to be approximate. Red deer δ 18 O ec from third molars of multiple individuals may be a useful proxy to recover information about past climate temperature and seasonality. Modern analog analyses are very useful to understanding ancient ecosystems, particularly for species that are still extant..

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You just want me for my teeth. Thank you for your attention !.