Global diversity and geography of soil fungi
Global diversity and geography of soil fungi
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DOI：
10.1126/science.1256688
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发表时间：
2014-11-28
期刊：
影响因子：
56.9
通讯作者：
Abarenkov, Kessy
中科院分区：
文献类型：
--
作者：
Tedersoo, Leho;Bahram, Mohammad;Abarenkov, Kessy
真菌在生态系统过程中发挥着重要作用，但真菌多样性和生物地理模式的决定因素仍然知之甚少。利用来自全球数百个土壤样本的 DNA 元条形码数据，我们证明真菌丰富度与植物多样性无关。植物与真菌的丰富度比率向两极呈指数下降。气候因素，其次是土壤和空间变量，构成了全球范围内真菌丰富度和群落组成的最佳预测因素。真菌与其他生物体表现出相似的纬度多样性梯度，但有几个明显的例外。这些发现增进了我们对全球真菌多样性模式的理解，并允许将真菌整合到一般的宏观生态框架中。
Fungi play major roles in ecosystem processes, but the determinants of fungal diversity and biogeographic patterns remain poorly understood. Using DNA metabarcoding data from hundreds of globally distributed soil samples, we demonstrate that fungal richness is decoupled from plant diversity. The plant-to-fungus richness ratio declines exponentially toward the poles. Climatic factors, followed by edaphic and spatial variables, constitute the best predictors of fungal richness and community composition at the global scale. Fungi show similar latitudinal diversity gradients to other organisms, with several notable exceptions. These findings advance our understanding of global fungal diversity patterns and permit integration of fungi into a general macroecological framework.