稳定的同位素显示,智人人类在约45,000年前在德国拉尼斯的伊尔森霍勒散落在寒冷的草原中
Sarah Pederzani1,2, Kate Britton3,4, Manuel Trost3
1Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany. scpederz@ull.edu.es.
Nature ecology & evolution
|January 31, 2024
概括
欧洲早期的智人 (Homo sapiens),与林科姆比亚-拉尼斯-杰兹马诺维亚 (LRJ) 技术复合物相关,大约在45,000年前,他们表现出了显著的适应性,适应严酷的寒冷气候.
科学领域:
- 古人类学古人类学.
- 考古学的考古学
- 古气候学 古气候学
背景情况:
- 林康比亚-拉尼斯-杰兹马诺维亚 (LRJ) 是一个过渡技术复合体,起源于Homo sapiens向欧亚扩张和尼安德特人消失的时期.
- 在历史上,LRJ的制造者和进化意义一直不清楚.
研究的目的:
- 调查LRJ技术综合体与Homo sapiens的关联.
- 了解早期Homo sapiens在欧洲扩散期间的环境条件和人类适应能力.
主要方法:
- 在德国Ranis的Ilsenhöhle遗址发现的Homo sapiens遗骸的直接约会.
- 对16只马牙的稳定同位素分析,重建了大约12,500年的古气候和息地条件.
主要成果:
- 确定年代的智人 (Homo sapiens) 遗骸 (约45,000年前) 与伊尔森霍勒的LRJ联系在一起,标志着早期的欧洲存在.
- 古气候数据表明LRJ占领期间存在寒冷条件,包括大约45,000-43,000年前的显著寒冷游览.
- 即使在这个严重的寒冷阶段,Homo sapiens也占据了Ranis遗址.
结论:
- 智人 (Homo sapiens) 在中欧存在于LRJ时期,大约45,000年前.
- 早期人类在欧洲的分散发生在极寒的条件下,突出显著的适应能力.
- 这些发现挑战了以前关于早期人类在寒冷环境中殖民的局限性的观点.
更多相关视频
06:18Optimized Bone Sampling Protocols for the Retrieval of Ancient DNA from Archaeological Remains
Published on: November 30, 2021
3.8K
09:06Removal of Exogenous Materials from the Outer Portion of Frozen Cores to Investigate the Ancient Biological Communities Harbored Inside
Published on: July 3, 2016
8.0K
相关概念视频
Global Climate Change
24.4K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.4K
The Fossil Record
25.2K
The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
25.2K
What is Evolutionary History?
36.5K
Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
36.5K
Radioactive Decay and Radiometric Dating
34.0K
Radioactivity is a spontaneous disintegration of an unstable nuclide and is a random process, as all the nuclei in the sample do not decay simultaneously. The number of disintegrations per unit time is called the activity (A), which is directly proportional to the number of nuclei in the sample. The decay constant (λ) is an average probability of decay per nucleus in unit time.
34.0K
Biodiversity and Human Values
13.1K
Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.
13.1K
Mass Spectrometry: Isotope Effect
2.1K
Most elements exist in nature as a mixture of isotopes. The isotopes differ in weight due to their respective number of neutrons. The molecular weight of a molecule is different depending on the specific isotope of its elements involved. As a result, the mass spectrum of the molecule exhibits peaks from the same fragment at multiple positions. The positions of these mass signals depend on the difference between the molecular mass. Furthermore, the intensity of these signals is dependent on the...
2.1K
