生物多様性のホットスポットの人口
R P Cincotta1, J Wisnewski, R Engelman
1Research Department, Population Action International, Washington, DC 20036, USA. cincotta@popact.org
Nature
|May 9, 2000
まとめ
生物多様性のホットスポットは,固有の種が豊富で,世界の人口のほぼ20%をホストしています. これらの地域の高い人口増加率は,保全の努力を脅かしている.
科学分野:
- エコロジー エコロジー エコロジー
- 保護生物学の保護生物学
- デモグラフィー デモグラフィー 人口統計
背景:
- 生物多様性のホットスポットは,高種の富と特有性があるため,保全に不可欠です.
- これらの脆弱な地域における人口動態は十分に理解されていない.
- 人間の影響を理解することは,効果的な生物多様性保全戦略に不可欠です.
研究 の 目的:
- 25の世界の生物多様性のホットスポットで,人間の人口動態を定量化するために.
- 人口増加率とその保全への影響を評価する.
- 生物多様性の減少における人口変化の役割を分析する.
主な方法:
- 生物多様性のホットスポットにおける主要な人口統計的変数の推定.
- 1995年の人口データと1995年から2000年の成長率の分析.
- ホットスポットの人口増加率と世界規模および途上国の割合を比較.
主要な成果:
- 1995年には11億人以上 (世界人口のほぼ20%) が生物多様性のホットスポットに住んでいました.
- ホットスポットは,年間1.8%の人口増加率 (1995-2000年) を経験し,世界および開発途上国の平均を上回りました.
- これらの人口動態傾向は,ホットスポットにおける人間による環境変化が継続していることを示している.
結論:
- 人口の変化は,世界の生物多様性保全の重要な要因です.
- ホットスポットの高い人口増加は,固有の種の脅威を悪化させる.
- 世界の生育率の低下と移住政策は,保全結果に影響を与える可能性があります.
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