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Updated: May 16, 2026

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A Method for Quantifying Foliage-Dwelling Arthropods
Published on: October 20, 2019
熱帯雨林における節足類の多様性
Yves Basset1, Lukas Cizek, Philippe Cuénoud
1Smithsonian Tropical Research Institute, Panama City, Republic of Panama. bassety@si.edu
まとめ
熱帯雨林には,巨大な節足類の多様性があり,1ヘクタールには,全種の60%以上が含まれている可能性があります. この研究は,パナマの6000ヘクタールの森林保護区で約25,000種の節足類を推定しています.
科学分野:
- エコロジー エコロジー エコロジー
- 生物多様性 科学 科学 生物多様性
- エントモロジー エントモロジー学
背景:
- 節足類は,真核生物の大多数を占めるが,多様な陸上の生態系におけるそれらの種の豊かさは,ほとんど定量化されていないままである.
- 熱帯雨林は生物多様性のホットスポットですが,その節足類動物群の包括的な推定は稀です.
研究 の 目的:
- 熱帯雨林の生態系における全節足類種富の有形な見積もりを作成する.
- 熱帯雨林の小さな代表的な領域に含まれる全体的な生物多様性の割合を評価する.
主な方法:
- パナマのサンローレンソの森で構造化されたプロトコルを用いて,土壌から天蓋まで,遺伝学的な幅を横断した節足類の分類体のサンプリング.
- 0.48ヘクタールの土地から6144種の節足類を集めました.
- 競合するモデルを用いたより大きな領域への総種多様性の抽象化.
主要な成果:
- 6000ヘクタールのサンロレンソ森林保護区には,推定2万5,000種の節足類が住んでいます.
- 熱帯雨林の1ヘクタールには,より広い景観に存在する節足類の生物多様性の60%以上が含まれていることが判明しました.
- 植物多様性を含むモデルは,草食動物と非草食動物の両方の節足類の累積された種豊かさを正確に予測しました.
結論:
- 熱帯雨林は例外的に高い節足類種の富を有しており,小規模な地域が総生物多様性の大部分を占めています.
- 植物多様性モデルは,世界の節足類の生物多様性を推定するための信頼できる基礎を提供します.
- 節足類の多様性に関するさらなる研究は,熱帯の生態系を理解し,保護するために不可欠です.
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