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危物种的全球1公里息地分布及其在未来变暖情景下的空间变化
Bin Li1,2, Changxiu Cheng3,4,5, Tianyuan Zhang6
1State Key Laboratory of Earth Surface Processes and Disaster Risk Reduction, Beijing Normal University, Beijing, 100875, P. R. China.
Scientific data
|September 2, 2025
概括
现在已经有了临灭绝的陆地脊椎动物的高精度息地图. 这一新数据集预测了气候变暖带来的物种分布变化,
科学领域:
- 生态学
- 保护生物学
- 地理信息系统
背景情况:
- 对危陆地脊椎动物的有效保护策略需要准确的息地适应性地图.
- 目前的息地绘制方法往往缺乏全球生物多样性和气候行动规划所需的精度.
- 现有的数据集无法充分捕捉由于气候变化的物种息地的动态变化.
研究的目的:
- 为危的陆地脊椎动物开发高分辨率息地适合性的全球数据集.
- 预测到2100年这些息地在各种气候变暖场景下的空间演变.
- 提供生物多样性保护行动的基础工具.
主要方法:
- 综合适合的土地使用类型和海拔范围为2571只两动物,617只鸟类,1280只哺乳动物和1456只爬行动物.
- 将特定物种的息地适应性映射到全球土地使用/土地覆盖数据上.
- 在不同变暖情景下生成1公里分辨率的息地适应范围和空间演变地图.
主要成果:
- 为许多危的陆地脊椎动物物种开发了全球息地数据集 (AOH).
- 与大多数物种的随机分布相比,已验证的2020年AOH地图显示预测息地内的观测点密度明显更高.
- 在未来气候变暖场景下生成空间演变地图,说明潜在的息地变化.
结论:
- 创建的AOH数据集为临灭绝的陆地脊椎动物息地提供了前所未有的精度.
- 在气候变暖下预测的息地变化为未来的保护计划提供了关键的见解.
- 这一数据集为全球实施有效的生物多样性保护战略提供了坚实的基础.
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