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ブッシュ肉の狩猟,野生生物の減少,そして西アフリカの魚の供給
Justin S Brashares1, Peter Arcese, Moses K Sam
1Conservation Biology Group, Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK. brashares@nature.berkeley.edu
Science (New York, N.Y.)
|November 13, 2004
まとめ
減少する魚の供給により,野生動物の狩猟が増加し,熱帯野生動物の生存が脅かされています. この研究は,魚の不足とガーナの狩猟の増加と哺乳類の減少を関連付け,タンパク質の代替品とより良い漁業管理の必要性を強調しています.
科学分野:
- 生態学と保全生物学 生態学と保全生物学
- 野生生物管理とは,野生生物の管理です.
- 漁業 科学 漁業 科学
背景:
- 野生の肉の取引は,熱帯の脊椎動物の存続に重大な脅威をもたらしています.
- 限られた経験的データは,野生肉取引の要因と人間の福祉への影響を理解することを妨げています.
研究 の 目的:
- 野生肉の取引,魚の利用,およびガーナの哺乳類の減少との関連を調査するために30年.
- ダイエットの主食としてのブッシュ肉の役割と,タンパク質源の利用可能性との関連を分析する.
主な方法:
- ガーナの30年間のデータを活用し,哺乳類の集団の変化と野生肉貿易,魚の供給変動を相関させた.
- 魚の供給,野生肉の需要,村の食事パターンとの関係を確立するために,地元の市場データを分析しました.
主要な成果:
- 魚の供給が乏しい年は,自然保護区での狩猟の増加と41種の野生生物のバイオマスの大幅な減少と相関していた.
- 市場データでは,魚の供給量と野生動物の肉の需要の間の直接的な関連が確認され,野生動物の肉の食事的重要性を強調した.
結論:
- 野生の肉に代わる手頃な価格のタンパク質の代替品の緊急開発は極めて重要です.
- 森林肉の取引によって引き起こされる熱帯野生生物の絶滅を緩和するために,漁業の管理を改善することが必要である.
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