ネアンデルタールから現代人類への移行期に西ヨーロッパの人口は10倍に増加した
Paul Mellars1, Jennifer C French
1Department of Archaeology, Cambridge University, Cambridge CB2 3DZ, UK. pam59@cam.ac.uk
まとめ
アフリカから来た現代のヒトは,約4万年前にヨーロッパのネアンデルタール人を置き換えた. 現代人の10倍の人口増加は,数学的優位性がこの代替の鍵であったことを示唆しています.
科学分野:
- 古人類学は,古人類学である.
- 人間の進化 人類の進化
- 考古学考古学とは
背景:
- 欧州のネアンデルタール人は,約4万年前,アフリカを起源とする解剖学的に近代的な人間によって徐々に置き換えられました.
- この重要な古人類学的な移行を推進するメカニズムは,現在も進行中の研究と議論の対象となっている.
研究 の 目的:
- ヨーロッパでネアンデルタール人が現代人によって置き換えられた際に,人口規模が果たした潜在的な役割を調査する.
- 中高古石器時代から上高古石器時代への移行期における人口変化の証拠を考古学的データから分析する.
主な方法:
- 考古学的な記録をよく記録されたヨーロッパの地域から調べる.
- アーティファクトの密度と場所の分布から推論された人口サイズ変化の定量分析.
主要な成果:
- 考古学的な証拠は,置換期間に,現代人の人口規模が,大きさの1つの順序で,実質的に増加したことを示しています.
- この人口増加は,ヨーロッパで最も広範に研究された地域で起こった.
結論:
- 入ってきた現代人集団の著しい数値的優位性は,先住民のネアンデルタール人の移転と最終的な置き換えの重要な要因であったかもしれない.
- 人口の動態,特に数学的優位性は,ヨーロッパへの近代的な人間の拡大の成功に決定的な役割を果たしたと思われる.
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