絶滅したホロセーンギボンの一種が,中国帝国で人間と関連している
Samuel T Turvey1, Kristoffer Bruun2, Alejandra Ortiz3
1Institute of Zoology, Zoological Society of London, Regent's Park, London NW1 4RY, UK. samuel.turvey@ioz.ac.uk.
まとめ
絶滅したジボンの新属と種 ジュンジ・インペリアリスが 中国で発見されました この発見は 氷河期後の大陸の生態系における ヒトによる霊長類の絶滅の 最初の証拠です
科学分野:
- 古生物学
- 霊長類の進化
- 中国古生物学
背景:
- 現存する類人猿は絶滅の危機に直面していますが 氷河期後の生態系における霊長類の絶滅の原因は 人間の手による証拠が不足しています
- 何千年にもわたる人類による圧力や 生物多様性の喪失にもかかわらず 人類による類人猿の絶滅の確固たる事例は 記録されていません
研究 の 目的:
- 絶滅した新種のギボンの発見を報告する
- 氷河期後の大陸の生態系における ヒトによる霊長類の絶滅の 最初の証拠を提供するためです
主な方法:
- 新しいギボン属と種,Junzi imperialisの記述,化石の残骸に基づいています.
- 中国の山西にある約2200~2300年前の墓から採取した部分的な頭蓋骨と下の分析.
- 歯の形態測定データを単変数と多変数で分析し,現在生息するギボンと絶滅したギボンとの違いを明らかにした.
主要な成果:
- ジャンジ・インペリアリスの特定 絶滅したギボンの新属と種
- ジュンジ・インペリアリスは,現存するヒロバティド属と絶滅した四季期のギボン・ブノピテクスから,頭蓋骨の形状測定法を用いて区別することができる.
- この発見は,中国で最近絶滅した 猿の放射能を示唆しています.
結論:
- 氷河期後の大陸の生態系で ヒトによる霊長類の絶滅の 最初の証拠です
- この発見は 人類の活動が 歴史を通じて 類人猿の集団に及ぼす 重要な影響を強調しています
- 中国の四次元の化石記録のさらなる調査は 過去の類人猿の多様性について より多くのことを明らかにするかもしれません
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