Biogeography in the air: fungal diversity over land and oceans
Biogeography in the air: fungal diversity over land and oceans
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DOI：
10.5194/bg-9-1125-2012
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发表时间：
2012-01-01
期刊：
影响因子：
4.9
通讯作者：
Poeschl, U.
中科院分区：
文献类型：
--
作者：
Froehlich-Nowoisky, J.;Burrows, S. M.;Poeschl, U.
生物源性气溶胶与地球系统、气候和地方、区域和全球范围内的公共卫生有关。然而，到目前为止，人们对空气微生物的多样性和生物地理学知之甚少。我们提出了第一个基于dna的分析在全球范围内的空气传播真菌，显示明显的地理模式和边界。我们特别发现担子菌门和子囊菌门的物种丰富度之比在陆地空气中要比在海洋空气中高得多。这可能是“蓝海”和“绿海”在云和降水形成方面的一个重要区别，真菌孢子可以作为云和降水的核心。我们的研究结果还表明，气流模式和全球大气环流对于理解全球生物多样性的变化非常重要。
Biogenic aerosols are relevant for the Earth system, climate, and public health on local, regional, and global scales. Up to now, however, little is known about the diversity and biogeography of airborne microorganisms. We present the first DNA-based analysis of airborne fungi on global scales, showing pronounced geographic patterns and boundaries. In particular we find that the ratio of species richness between Basidiomycota and Ascomycota is much higher in continental air than in marine air. This may be an important difference between the 'blue ocean' and 'green ocean' regimes in the formation of clouds and precipitation, for which fungal spores can act as nuclei. Our findings also suggest that air flow patterns and the global atmospheric circulation are important for the understanding of global changes in biodiversity.