在雨林树冠上的无脊椎动物生物质估计增加了一倍
Martin D F Ellwood1, William A Foster
1University Museum of Zoology, Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK. mdfe2@cam.ac.uk
Nature
|June 4, 2004
概括
热带雨林的生植物含有大量的无脊椎动物生物量,可能会使总无脊椎动物生物量的估计增加一倍. 这凸显了这些被忽视的生物在森林生态系统中的关键作用.
科学领域:
- 生态生态学 生态生态学
- 森林科学 森林科学 森林科学
- 生物多样性研究 生物多样性研究
背景情况:
- 森林树冠是陆地生物质和大气交换的关键接口.
- 了解树冠中的生物质分布对于生态系统功能 (能源流动,碳循环) 至关重要.
- 热带雨林的生植物是树冠生态系统中鲜为人知的组成部分.
研究的目的:
- 量化雨林中常见的无脊椎动物生物群.
- 为了研究植物大小与相关动物生物质之间的关系.
- 评估植物动物对整个热带雨林树冠无脊椎动物生物量的贡献.
主要方法:
- 在雨林中测量无脊椎动物生物质的现场测量.
- 分析植物 () 大小与无脊椎动物生物质之间的相关性.
- 生物质的比较估计包括和不包括 epiphyte 动物.
主要成果:
- 的大小和它所含的无脊椎动物生物量之间存在显著的关系.
- 大型树可以容纳与树冠的其余部分相当的无脊椎动物生物量.
- 包括类动物在内,雨林树冠中估计的无脊椎动物总生物量增加了一倍以上.
结论:
- 长植物是关键的微生态息地,在雨林树冠上支持大量的无脊椎动物生物群.
- 目前对树冠无脊椎动物生物质的估计可能低估了总量,因为忽视了植物动物群.
- 热带雨林的保护和生态研究必须纳入虫的重要作用.
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