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与海拔高度相关的路径在高原内陆河流沿线的多层食物水平上调解水生生物多样性

Mengru Wei¹, Tao Feng², Yuqing Lin³

¹Yangtze Institute for Conservation and Development, Nanjing 210098, China; Center for Eco-Environment Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China.

|May 21, 2024

概括

高海拔通过间接途径影响河流生物多样性,主要由水温,水质和景观因素介导. 这些发现揭示了海拔高度如何影响水生生物体在不同的食物营养水平.

科学领域:

生态生态学生态生态学
环境科学环境科学
河流生态系统河流生态系统

背景情况:

水生生物多样性对于河流生态系统的健康至关重要.
高度是生物多样性模式的一个关键驱动因素.
连接过高水平到生物多样性的途径仍然不清楚.

研究的目的:

调查与海拔高度相关的途径,影响水生生物多样性在不同的热带层.
为了确定海拔高度对河流生物的直接和间接影响.
了解环境因素在调解这些关系中的作用.

主要方法:

使用结构方程建模 (SEM).
分析了来自中国贝河的数据.
检查了多种食物层 (细菌,植物浮游生物,动物浮游生物,宏观无脊椎动物) 的生物多样性模式.

主要成果:

观察到不同的海拔生物多样性模式:宏观无脊椎动物和细菌的形,植物浮游生物和动物浮游生物的U形.
确定的海拔高度主要通过间接途径影响水生生物多样性.
确定了水温和水质是所有生物的主要调解因素.
发现景观调解对于更高的食量水平 (宏观无脊椎动物,动物浮游生物) 是至关重要的.

结论:

高海拔对河流生物多样性的影响是复杂的,由环境因素介导.
水的温度,质量和景观特征是关键途径.
这些发现为大规模的河流生物多样性评估提供了基础.

关键词:

水生生物多样性水生生物多样性贝恩河是贝恩河的一条河流.升高模式的模式.结构方程建模结构方程建模

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