熱帯生物多様性に対する保護区の景観規模の利益
Jedediah F Brodie1,2,3, Jayasilan Mohd-Azlan4, Cheng Chen5,6
1Division of Biological Sciences, University of Montana, Missoula, MT, USA. jedediah.brodie@umontana.edu.
Nature
|August 23, 2023
まとめ
保護区は鳥類の多様性を高め 周辺の地域では哺乳類の多様性を高めます この研究は,地球環境保護地域が 地域内外の生物多様性に 恩恵をもたらすことを示すことで,地球環境保護の目標を支持しています.
科学分野:
- エコロジー
- 保護生物学
- 環境科学
背景:
- 生物多様性の減少と闘うために 世界的に保護区が拡大しています
- 保護区の動物多様性保全の効果と周辺の保護されていない地域への影響は十分に理解されていません.
- 潜在的悪影響には生息地の劣化と脅威の移転 (漏れ) が含まれており,好影響には隣接する地域の生物多様性の強化 (溢出) が含まれる.
研究 の 目的:
- 地域内外の脊椎動物の保全に寄与している地域を評価する.
- PAsが生物多様性の漏れや転移効果をもたらすかどうかを調査する.
主な方法:
- 東南アジアの保護されていない地域と隣接する地域における脊椎動物の多様性を調査した.
- 周囲の地域のPAサイズと哺乳類の多様性との関係を分析した.
主要な成果:
- 保護区は 鳥の多様性のあらゆる側面を 大きく増やしました
- 大規模な保護地域は,隣接する保護されていない地域における哺乳類の多様性の大幅な増大と関連していた.
- PAsは漏れではなく 溢れ出る利益をもたらすという証拠があります
結論:
- 保護区は 地域内外の脊椎動物の多様性を高める 有効なツールです
- この結果は,国連の2030年までに30%のPAの普及を目指す目標を裏付けている.
- 広範囲にわたる景観の生物多様性への影響は,ペイルオーバー効果によるものです.
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