在潮间生态系统中,海洋度多样性梯度一般不存在
Jakob Thyrring1,2, Christopher D G Harley1,3
1Department of Zoology, University of British Columbia, Vancouver, British Columbia, Canada.
Ecology
|November 10, 2023
概括
潮区是一个独特的海洋息地,缺乏一致的度多样性梯度 (LDGs). 与海底和海底海洋不同,由于息地异质性和局部因素,潮间物种丰富度与度没有很强的相关性.
科学领域:
- 海洋生态海洋生态学
- 生物多样性研究 生物多样性研究
- 生物地理学 生物地理学 生物地理学
背景情况:
- 度多样性梯度 (LDGs) 在许多生态系统中得到了充分记录.
- 潮间区域是一个独特的海洋息地,具有独特的环境压力,在LDG分析中被忽视.
- 以前的元分析结合了潮间和潮下盆地系统,可能掩盖了不同的模式.
研究的目的:
- 为了研究LDG模式在潮间,潮下盆地和海底海洋领域.
- 为了确定潮区是否与其他海洋系统相比表现出明显的LDG模式.
- 突出承认潮间生态系统作为生态研究的单独实体的重要性.
主要方法:
- 综合文献综述和自1911年以来的LDG的元分析.
- 在潮间盆地,潮下盆地和海底海洋领域中比较LDG强度.
- 分析潮间和潮下数据单独与组合.
主要成果:
- 在海底盆地和海底海洋领域证实了LDG,显示极点的丰富性下降.
- 没有在海洋或半球中发现一致的潮间LDG.
- 分离潮间和潮下区域加强了潮下盆地LDG的发现.
结论:
- 潮间生态系统不表现出明显的度多样性梯度,与潮下和海系统不同.
- 息地异质性,区域变异性和生物相互作用在潮间区域中创造了物种丰富的热点,独立于度.
- 潮间生态系统和潮下生态系统具有根本不同的控制参数,不应在生态分析中将它们结合起来.
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