ワームの多様性の世界分布
Helen R P Phillips1,2, Carlos A Guerra3,4, Marie L C Bartz5
1German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, 04103 Leipzig, Germany. helen.phillips@idiv.de.
まとめ
地上の種とは対照的に,地虫の多様性と豊富さは高緯度でピークに達します. 気候変動はこれらの重要な土壌生物とその生態系機能に重大な脅威をもたらしています
科学分野:
- エコロジー
- 土壌生物学
- 生物多様性に関する研究
背景:
- 地虫は重要な土壌生物ですが グローバルな多様性や分布や脅威は 十分に理解されていません
- これらのパターンを理解することは,陸上の生態系への環境変化の影響を予測するために不可欠です.
研究 の 目的:
- ワームの多様性,豊富さ,バイオマスの世界的なパターンを予測する.
- 世界中でワームのコミュニティを形作る 重要な要因を特定するためです
主な方法:
- 57カ国の6928か所から ワームコミュニティの包括的なデータセットをまとめました
- 気候の変数,土壌の特性,生息地の覆いの影響について分析した.
主要な成果:
- 地上の生物とは対照的に,地形虫の種が豊富で豊富になる傾向があります.
- 熱帯地域では 種差が高く,全体的に多様性が高いことが示されています.
- 気候の変数は土壌の特性や生息地よりも ワームのコミュニティを形成する上で 影響力があることが判明しました
結論:
- ワームの分布パターンは緯度に依存し,主に気候の影響を受けます.
- 気候変動は 虫の個体数と 虫が支える生態学的機能に 大きなリスクをもたらします
- 土壌の生物多様性に対する脅威を完全に理解し,軽減するためにさらなる研究が必要です.
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