优先考虑基于气候变化下的未来息地可用性和可访问性的保护工作.
Jie Liang1,2, Wanting Wang1,2, Qing Cai3
1College of Environmental Science and Engineering, Hunan University, Changsha, P.R. China.
概括
迁徙鸟类因气候变化而面临息地丧失. 这项研究结合了息地可用性和可访问性,以确定长江流域对鸟类的关键保护区.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 气候变化生物学 气候变化生物学
背景情况:
- 物种范围的变化对于避免在气候变化下灭绝至关重要.
- 以前的保护战略往往忽视了动态范围的变化,专注于固定气候避难所.
- 了解息地可用性和可访问性对于有效的保护规划至关重要.
研究的目的:
- 在气候变化下量化长江流域迁徙鸟类未来息地可用性和可访问性.
- 为了评估迁徙鸟类的范围转移潜力,考虑到气候速度.
- 确定20世纪50年代迁徙鸟类的关键保护优先区域.
主要方法:
- 使用物种发生,气候,土地覆盖面和海拔数据量化未来息地可用性.
- 根据四种气候变化情景,根据气候速度评估息地可访问性.
- 采用网络分析来确定迁徙鸟类的保护优先区域.
主要成果:
- 中等和高气候速度 (5-10公里/年和≥10公里/年) 威胁到稳定的鸟类息地的很大一部分.
- 即使在低气候速度 (每年0-5公里) 的情况下,目的地息地与源息地相比,可用性减少.
- 在四川和中下长江流域确定了关键的保护区.
结论:
- 息地可用性和可访问性动态对于预测生物对气候变化的反应至关重要.
- 考虑到动态物种范围的变化对于确定有效的保护优先事项至关重要.
- 该研究提供了一种新的方法,用于预测气候驱动的分布变化,并为迁徙鸟类的保护战略提供信息.
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