评估气候变化对非典型洞穴鱼Onychostoma macrolepis的空间分布的影响
Xianghong Dong1, Tao Ju2, Lei Shi3
1Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, 550025, China; College of Animal Science, Guizhou University, Guiyang, 550025, China.
Journal of environmental management
|November 25, 2023
概括
全球气候变化威胁着临灭绝的鱼群. 这项研究预测Onychostoma macrolepis的息地缩小,强调温度.
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:
- 了解危物种对全球气候变化 (GCC) 的反应对于保护至关重要.
- 之前的研究忽视了地下种类,阻碍了普遍原理的发现.
- 对气候敏感的地下物种需要集中研究,以制定有效的保护策略.
研究的目的:
- 在未来的气候变化场景下预测流域特有鱼Onychostoma macrolepis的空间分布变化.
- 确定影响这种地下物种分布的关键生物气候变量.
- 为O. macrolepis.提供适应性管理和现场保护工作的信息.
主要方法:
- 使用MaxEnt (最大) 模型来预测物种分布.
- 使用精心收集的物种发生数据和生物气候变量 (世界气候,环境).
- 通过使用多个全球气候模型和跨不同时间节点的共享社会经济路径评估未来气候变化影响.
主要成果:
- 与温度相关的变量在确定O. macrolepis分布方面比降水更有影响力.
- 预计适合O. macrolepis的息地区域将大幅缩小 (平均为20901.75平方公里).
- 预计分布中心体将在中国内向东北或西北转移.
结论:
- 由于全球气候变化,Onychostoma macrolepis面临着严重的息地减少和分布转移.
- 该物种的有限分布和特定息地需求 (地形) 加剧了它的脆弱性.
- 建议在现场进行保护,以保护这种遗迹物种在其重要的地息地.
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