ランク依存の社会的遺伝は,斑点ヒエナの社会的ネットワーク構造を決定する
Amiyaal Ilany1, Kay E Holekamp2,3, Erol Akçay4
1The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel. amiyaal@gmail.com.
Science (New York, N.Y.)
|August 26, 2021
まとめ
社会的遺伝はヒエナの社会的ネットワークを 形作るもので 子孫の関係は 何年も母親を反映しています 母親の地位は この社会的遺産に 影響を及ぼし 子孫の生存に影響を与えます
科学分野:
- 行動エコロジー
- 動物社会ネットワーク
- 哺乳類の社会行動
背景:
- 動物の社会ネットワークの構造は 生存,繁殖,伝播のプロセスに不可欠です.
- 社会的構造の形成と維持を統括する一般的なメカニズムは完全に理解されていません.
研究 の 目的:
- 野生の斑点ヒエナの社会関係形成における社会的遺伝子の役割を調査する.
- 母親の社会的地位と関係の強さが 子孫の社会的ネットワークの統合にどのように影響するかを決定する.
主な方法:
- 野生の斑点ヒエナの73,767の社会的相互作用を含む大規模なデータセットの分析.
- 27年にわたる長期研究で 関係を動かし 社会的な継承パターンを追跡しました
- 母親の社会的地位を考慮して,子孫と母親の間の関係類似性の定量化.
主要な成果:
- 子孫の社会的な関係は 母親の社会的な関係に 6年ほど似ていた.
- 母親の社会的地位が高くなるにつれて,関係性の類似度が増加した.
- 強い母子関係は子孫の長寿と正に相関し,社会的遺伝に影響を与えました.
結論:
- 交際の社会的継承は 斑点ヒエナの動物社会ネットワークを構成する 重要なメカニズムです
- 母親の社会的地位と関係の強さは 子孫の社会的統合と生存に重要な役割を果たします
- この発見は,人間関係の社会的継承における適応的トレードオフの仮説を裏付けている.
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