騒音 汚染 は,米国 の 保護 区域 に 広く 広がっ て いる
Rachel T Buxton1, Megan F McKenna2, Daniel Mennitt3
1Department of Fish, Wildlife and Conservation Biology, Colorado State University, Fort Collins, CO 80523-1474, USA. rachel.buxton@colostate.edu.
まとめ
人為的な騒音は米国の保護区に大きく影響し ほとんどの保護区では背景音が2倍になり 21%では10倍になります 規制の強化は騒音の低減と相関し,環境保全の重要な分野を強調しています.
科学分野:
- エコロジー
- 環境科学
- 保護生物学
背景:
- 人為的な騒音は生態系に重大な脅威をもたらす.
- 保護区は生物多様性や文化資源の保全に不可欠ですが 人為的な騒音の影響も増えています
- 騒音汚染の範囲と源を理解することは 効果的な保全に不可欠です
研究 の 目的:
- アメリカ合衆国の保護地域における 人為的な騒音の発生率と強度を定量化する.
- 騒音レベルと保護区規制の関係を特定する.
- これらの重要な生息地における高い騒音汚染に関連した土地利用要因を特定する.
主な方法:
- アメリカの保護区の背景音レベルを評価するために大陸規模の音響モデルを使用しました.
- 分析された騒音レベルは,人間の訪問者体験と野生生物の干渉の値に関連して増加します.
- 輸送,開発,採掘活動を含む土地利用パターンと相関する騒音汚染データ
主要な成果:
- 人為的な騒音は アメリカの保護区の63%で 背景音のレベルを2倍にしました
- 保護区の21%で10倍以上の音量上昇が観察されました.
- 絶滅危惧種の重要な生息地の14%では 騒音レベルが10倍に上昇し 規制が厳しくなり 騒音が減少しました
結論:
- 騒音汚染は米国の保護区に広く広がり,生物多様性や訪問者の経験に影響しています.
- 騒音レベルは,輸送,開発,採掘用地の利用と関連しており,標的を絞った緩和の領域を示しています.
- 保護区における厳格な規制の実施と執行は,人為的な騒音汚染を効果的に減らすことができます.
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