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稳定的同位素证据表明,非洲软海在寻找食物时出现了人类纪的破坏
Willemien de Kock1,2, Marcel T J van der Meer3, Ronald van Bommel3
1Groningen Institute of Archaeology, Faculty of Arts, University of Groningen, Groningen, Netherlands.
PloS one
|February 11, 2026
概括
非洲软海 (Trionyx triunguis) 的饮食随着时间的推移而发生变化,现代种群受到人类活动的影响. 古代海的饮食更为多样化,有些人表现出海洋食.
科学领域:
- 古生态学 古生态学
- 同位素地球化学 同位素地球化学
- 动物园 考古学
背景情况:
- 非洲软海 (Trionyx triunguis) 是一个在非洲和东欧地区广泛分布的物种.
- 了解其饮食生态对于保护和了解过去的生态系统至关重要.
- 之前对T. triunguis饮食的研究是有限的,特别是关于长期变化的研究.
研究的目的:
- 研究当代和古代 Trionyx triunguis 种群的饮食习惯.
- 评估环境和人为变化对海饮食随时间推移的影响.
- 应用ZooMS (通过质谱仪进行动物园考古学) 来识别该分类中的物种.
主要方法:
- 对乌遗骸进行稳定同位素分析 (δ13C,δ15N和δ34S).
- 动物园MS生物标志物识别用于物种确认.
- 现代和古代种群之间的同位素特征的比较.
主要成果:
- 稳定的同位素值表明T. triunguis. 的潜在饮食变化.
- 来自土耳其的现代海显示高δ15N和低δ13C,表明尸和农业投入.
- 来自黎凡特的古代海表现出更多样化的饮食,其中一些显示出海洋食签名.
结论:
- 在T. triunguis的饮食可塑性是显而易见的,潜在的变化受到生态系统条件的影响.
- 人类造成的压力似乎影响了一些地区的食行为.
- 这项研究为T. triunguis的生态历史和适应能力提供了新的生物分子见解.
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