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生態系破壊の経済的影響: 生物学的害虫駆除の代替によるコスト
Eyal G Frank1,2,3
1Harris School of Public Policy, University of Chicago, Chicago, IL, USA.
まとめ
野生生物の病気による蝙蝠の減少は 農家が殺虫剤の使用を増加させ 人間の乳幼児死亡率を高めた. これは生態系破壊と生物多様性の喪失がもたらす 重要な社会的コストを強調しています
科学分野:
- エコロジー
- 環境科学
- 公衆衛生
背景:
- 生物多様性の減少は 世界的に加速しています
- コウモリは 生物学的害虫対策の 重要な天然の捕食者です
- 野生生物の病気はコウモリの数を大幅に減少させました
研究 の 目的:
- バット集団の減少が農業と人間の健康に及ぼす影響について調査する.
- コウモリの減少,殺虫剤の使用,人間の乳児死亡率との関係を定量化するためです.
主な方法:
- コウモリと野生生物の病気の発生に関する生態学的データ
- 農家による殺虫剤使用に関する農業データ
- 幼児死亡率に関する公衆衛生データ
主要な成果:
- コウモリの数が減少すると 農家の殺虫剤使用量が 31.1%増加しました
- 昆虫駆除剤の使用の増加は,感染した郡におけるヒトの乳児死亡率の7.9%の増加と関連していました.
結論:
- コウモリの数が減少するなど 生態系の破壊は 社会的コストを伴うのです
- 種間の相互作用は生態系を超えて 農業や人間の福祉に影響を及ぼします
- 生物多様性の喪失による社会経済的影響に関する理論的予測を検証した結果です
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