气候-人为协同作用驱动了加剧的最低面积要求和连接-保护不匹配的卡斯特特有原始动物的卡斯特特有原始动物
Guangmei Yang1,2, Heqin Cao1,2, Tuo Shen1,2
1College of Forestry, Guizhou University, Guiyang, China.
Integrative zoology
|November 11, 2025
概括
气候变化和人类活动正在减少弗朗索瓦的息地.
科学领域:
- 生态动力学 生态动力学
- 保护生物学 保护生物学
- 景观生态学 景观生态学
背景情况:
- 物种的持久性取决于景观连接,受气候变化和人类活动的影响.
- 息地丧失和碎片化是已知的影响,但动态连接变化不太了解.
- 弗朗索瓦的 (Trachypithecus francoisi) 是一个卡斯特特有的灵长类动物,面临着这些挑战.
研究的目的:
- 为了建模息地适宜性,并量化弗朗索瓦·兰古尔的时空连接动态.
- 评估现有保护区 (PA) 在保持连接方面的有效性.
- 解读驱动物种连接性在多种压力因素下下降的机制.
主要方法:
- 综合实地调查和元分析数据用于息地适宜性建模.
- 从1987年到2024年,最小面积要求 (MAR) 息地的量化时空连接.
- 采用空间显式场景建模来分析连接性下降.
主要成果:
- 适合息地减少了48.8%,从连续向孤立的南北分布转移.
- 息地中心类动物以每年1.2公里的速度向东北迁移,超过了物种的散播能力.
- 连接概率 (PCst) 减少了18.32%,相当连接面积 (ECAst) 减少了38,130平方公里.
- 连接机制从补丁内持久性转向依赖直接分散和脚石路径.
- 气候变化和人为活动对抗性地影响了连接性,独立于MAR.
- 现有的PA具有持续的连接性,但保护的动态息地和走廊不够.
结论:
- 优化PA网络对于增强功能连接和保护弹性至关重要.
- 建议加强MAR核心补丁作为生态踏板.
- 建设适应气候的走廊对于临灭绝的地特有物种至关重要.
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