保護区は水鳥に様々な影響を及ぼしますが,管理は

Hannah S Wauchope^1,2, Julia P G Jones³, Jonas Geldmann^4,5

¹Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, UK. hannah.wauchope@gmail.com.

Nature

|April 21, 2022

まとめ

保護区は水鳥の個体数に世界的に影響を及ぼします効果的な保全には生物多様性から得られる恩恵を確保するために保護だけでなく適切に管理する場所も必要です

科学分野:

エコロジー
保護生物学
環境科学

背景:

国際政策は自然保護区を拡大することを目的としています.
保護区の種群の有効性に関する現存する研究は限られており,しばしば強力な制御が欠けている.
以前の研究では保存効果を誤って評価するシンプルなデザインが用いられていました

研究の目的:

1,506の保護区が世界の 27,055の水鳥集団に与える影響を評価する.
保護区の影響を評価するための異なる研究設計の有効性を比較する.
保護区の水鳥保護の成功に影響を与える要因を特定する.

主な方法:

強固な前後コントロール介入試験の設計を用いた.
保護前と保護後の保護区における水鳥の集団軌跡の比較
世界中で1506の保護区と27055種の水鳥のデータを分析した.

主要な成果:

単純な研究デザイン (前後,対照介入) は,集団の37-50%の効果を誤って評価する可能性があります.
保護区は水鳥の個体数に多様な影響を及ぼしています
水鳥のために特別に管理されている地域や,より大きな保護地域は,より大きな効果を示しています.

結論:

保護だけでは生物多様性の成果を保証できません
生物多様性から得られる計測可能な利益には適切に管理された保護区と自然保護区が不可欠です
将来の保全目標では効果的な管理と人口への測定可能な利益が優先されるべきです

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