インド洋の熱水噴出孔の生物地理と生態学的設定
C L Van Dover1, S E Humphris, D Fornari
1Biology Department, College of William & Mary, Williamsburg, VA 23187, USA. cindy_vandover@wm.edu
Science (New York, N.Y.)
|September 15, 2001
まとめ
インド洋の熱水噴出孔のコミュニティは,独特の第6の生物地理的州を形成しています. 他の噴出口との類似性にもかかわらず,その動物群は太平洋の進化の強い結びつきを示しており,注目すべきは大西洋のようなエビである.
科学分野:
- マリン・バイオロジー マリン・バイオロジー
- バイオジオグラフィー バイオジオグラフィー
- 深海の生態学 深海の生態学
背景:
- 5つの生物地理的州は,世界的に深海の熱水噴出口で固有の無脊椎動物群を認識しています.
- 熱水噴出孔の生態系は,特殊な無脊椎動物のコミュニティをサポートするユニークな化学合成細菌共生によって特徴付けられています.
研究 の 目的:
- インド洋の2つの噴出場 (カイレイとエドモンド) の無脊椎動物群の生物地理的状態を決定する.
- グローバルな文脈でインド洋の熱水噴出口の生態系の進化的親和性とコミュニティの組み立てルールを評価する.
主な方法:
- インド洋の熱水噴出孔からの無脊椎動物群の比較分析.
- 既知の西太平洋および大西洋の風口動物との進化的 afinitiesの評価.
- 生態環境の評価と無脊椎動物と細菌の共生.
主要な成果:
- カイレイとエドモンドの噴出場での無脊椎動物は,第6の独特の生物地理的地域を表しています.
- インド洋の風口生物の大多数は,西太平洋の風口動物と進化的親和を示している.
- インド洋の噴出口で支配的なエビの種は,中大西洋の同類に近似しており,非対称な組み立てを示しています.
結論:
- インド洋の熱水噴出孔コミュニティは,生物地理的に独特で,以前の仮定に挑戦しています.
- これらの噴出口でのコミュニティの集合は,太平洋の進化的つながりを好む非対称な規則の影響を受けています.
- 発見は,化学合成動物生物地理と深海の生態系進化のグローバルな理解に貢献します.
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