Species pool and local assembly processes drive microbial β diversity in primary forest soils
Primary forests occupy high biodiversity, where the α diversity of both above- and below-ground has been well studied. Nevertheless, our current knowledge of the β diversity in below-ground is limited. To examine the mechanisms driving patterns of β diversity in soil microbes, we collected soil samp...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
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| Series: | Global Ecology and Conservation |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989424005821 |
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| Summary: | Primary forests occupy high biodiversity, where the α diversity of both above- and below-ground has been well studied. Nevertheless, our current knowledge of the β diversity in below-ground is limited. To examine the mechanisms driving patterns of β diversity in soil microbes, we collected soil samples from three typical tropical, subtropical, and temperate primary forests in southwest China. Results indicated the highest soil bacterial and fungal β diversity in the tropical forest, lowest bacterial β diversity in the subtropical forest, and lowest fungal β diversity in the temperate forest. Community assembly, regional species pools, and microbial interactions jointly shaped soil bacterial β diversity patterns. Soil fungal β diversity patterns were influenced by regional species pools and community assembly. Furthermore, microbial β diversity was closely correlated to soil microbial metabolism, carbon cycling, and nitrogen cycling functional potentials. Our study emphasizes that not only soil microbial α diversity, but also β diversity attribute to carbon and nitrogen biochemical cycling, which provides new insight for the connections between microbial diversity maintenance and ecosystem functions in old-growth forests. |
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| ISSN: | 2351-9894 |