Dietary reconstruction of Mammuthus columbi from Tultepec, Estado de México, México: A multiproxy approach

IF 2.6 2区地球科学 Q2 GEOGRAPHY, PHYSICAL

Palaeogeography, Palaeoclimatology, Palaeoecology Pub Date : 2025-02-19 DOI:10.1016/j.palaeo.2025.112829

Susana Rodríguez-Franco , Víctor Adrián Pérez-Crespo , Christina I. Barrón-Ortiz , Luis Córdoba-Barradas , Joaquín Arroyo-Cabrales , Florent Rivals , Edith Cienfuegos-Alvarado , Francisco J. Otero , Alan U. Loredo-Jasso , Laura Eugenia Beramendi-Orosco

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Abstract

Using carbon and oxygen isotopic values from tooth enamel, as well as carbon and nitrogen from collagen and, dental microwear analysis, the diet and other paleobiological characteristics of 11 specimens of Mammuthus columbi from the Tultepec I and Tultpec II deposits, Estado de México, México, were inferred; additionally, three mandible bones were radiocarbon dated (13,170–13,450 cal BP). The results of carbon isotope analyses of enamel and collagen reveal that 10 individuals had a mixed C₃/C₄ diet and only one showed δ¹³C values indicative of a C₃ plant-based diet. Similar results were obtained from the analysis of dental microwear, where most individuals were identified as mixed feeders and only one as a browser.

The results of the different proxies suggest that some individuals modified their dietary habits during their lifetime while others maintained them. In the case of δ¹⁸O values, these show that perhaps the Tultepec population was composed of local individuals and migrants from other localities. The variations observed among the δ¹⁵N values of the individuals studied are possibly influenced by milk intake, as well as the consumption of nitrogen-fixing plants and hydric stress.

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墨西哥墨西哥州图尔特佩克 Mammuthus columbi 的膳食重建：多代理方法

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来源期刊

Palaeogeography, Palaeoclimatology, Palaeoecology 地学-地球科学综合

CiteScore

5.90

自引率

10.00%

发文量

398

审稿时长

3.8 months

期刊介绍： Palaeogeography, Palaeoclimatology, Palaeoecology is an international medium for the publication of high quality and multidisciplinary, original studies and comprehensive reviews in the field of palaeo-environmental geology. The journal aims at bringing together data with global implications from research in the many different disciplines involved in palaeo-environmental investigations. By cutting across the boundaries of established sciences, it provides an interdisciplinary forum where issues of general interest can be discussed.