海洋浮游生物功能群的物种丰富度的全球梯度
Fabio Benedetti1, Nicolas Gruber1, Meike Vogt1
1Environmental Physics, Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland.
Journal of plankton research
|December 12, 2023
概括
海洋浮游生物功能群 (PFG) 显示出全球多样化的物种丰富模式. 温度和营养等环境因素驱动这些模式,影响海洋生态系统的功能.
科学领域:
- 海洋生态海洋生态学
- 海洋学 海洋学 海洋学
- 生物多样性科学是生物多样性的科学.
背景情况:
- 了解浮游生物的功能组 (PFG) 对海洋生态系统的运行至关重要.
- 全球PFG物种多样性的全球模式尚不清楚.
研究的目的:
- 为了估计植物浮游生物和动物浮游生物功能群的全球物种丰富度.
- 确定影响PFG物种丰富模式的环境预测因素.
- 探索海洋浮游生物中的生物多样性-生态系统运行关系.
主要方法:
- 利用了一组经验性物种分布模型.
- 模拟了845种浮游生物在三个植物浮游生物和11个动物浮游生物的功能群体.
- 客观地选择环境预测因素来分析财富模式.
主要成果:
- 所有 PFG 的全球物种丰富度从低度下降到高度下降,群体间的度不同.
- 类动物,小型类动物和类动物表现出最的度梯度.
- 温度,辐射和营养度是关键驱动因素;上游和氧气区调节丰富度峰值.
- 种类丰富与净初级生产正相关,与颗粒大小和碳效率负相关.
结论:
- 浮游生物多样性的度梯度受到广泛的环境因素和局部海洋学特征的影响.
- 确定了新出现的生物多样性与生态系统运行关系.
- 为未来研究海洋浮游生物多样性和生态系统功能提出了假设.
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