生物多様性の評価と保全戦略
van Jaarsveld AS1, Freitag, Chown
1A. S. van Jaarsveld, S. Freitag, S. L. Chown, C. Muller, S. Kock, H. Hull, C. H. Scholtz, Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa. C. Bellamy, M. Kruger, S. Endrody-Younga, Transvaal Museum,
Science (New York, N.Y.)
|April 8, 1998
まとめ
保護計画には,すべての種を代表する課題があります. グリッドにおける生物多様性表現の代理物として,種またはより高い分類体を用いるのは,ほとんど重複しないことを示し,一般的な保全計画仮定に疑問を投げかけました.
科学分野:
- エコロジー エコロジー エコロジー
- 保護生物学の保護生物学
- 生物多様性評価について
背景:
- 効果的な保全計画には,すべての種を代表することが必要です.
- グリッドベースの評価は,種分布をマッピングするために一般的に使用されます.
- 代表的な種または分類を用いた代理母生育は,保存計画戦略として頻繁に行われます.
研究 の 目的:
- 保護計画における代替物としての種と高級分類体の有効性を評価する.
- 補完的な種の集合が,生物多様性の表現のために,より高い分類群の集合と一致するかどうかを判断する.
- 代理母性の有効性に対する調査の範囲と分類学的知識の影響を評価する.
主な方法:
- 南アフリカの植物,動物,高級分類のデータを分析した.
- 生物多様性の表現のためのグリッドベースの補完的なセット選択の検討.
- 種と高級分類群の重複の統計的評価.
主要な成果:
- 保護計画のための補完的な種群は,より高い分類群と一致しなかった.
- 種とより高い分類群の代用群の重複は最小限であった.
- 調査の範囲や分類学的な知識は重複の欠如に大きな影響を与えない.
結論:
- 保護計画における包括的な生物多様性表現のための代理物として,種やより高い分類が効果的に機能するという仮定は,この研究によって支持されていません.
- 代理母性に依存する現在のグリッドベースの保全計画方法は,すべての分類を適切に代表しない可能性があります.
- 保護活動における完全な種の代表性を確保するためのより堅固な方法を開発するために,さらなる研究が必要である.
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