期刊
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 377, 期 1857, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rstb.2021.0387
关键词
aridity; climate change; co-occurrence networks; modularity; semiarid; soil microorganisms
类别
资金
- Victoria Ochoa and Beatriz Gozalo
Determining the influence of climate on the global distribution of soil microbial communities is crucial for predicting potential shifts in soil food webs and ecosystem functioning under global change scenarios. Our study found that changes in temperature and aridity had a significant impact on the relative abundance of ecological clusters formed by bacteria-fungi and bacteria-cercozoa taxa. These findings have important implications for understanding the potential effects of climate change on soil communities and ecosystem services.
Determining the influence of climate in driving the global distribution of soil microbial communities is fundamental to help predict potential shifts in soil food webs and ecosystem functioning under global change scenarios. Herein, we used a global survey including 80 dryland ecosystems from six continents, and found that the relative abundance of ecological clusters formed by taxa involved in bacteria-fungi and bacteria-cercozoa bipartite networks was highly sensitive to changes in temperature and aridity. Importantly, such a result was maintained when controlling for soil, geographical location and vegetation attributes, being pH and soil organic carbon important determinants of the relative abundance of the ecological clusters. We also identified potential global associations between important soil microbial taxa, which can be useful to support the conservation of terrestrial ecosystems under global change scenarios. Our results suggest that increases in temperature and aridity such as those forecasted for the next decades in drylands could potentially lead to drastic changes in the community composition of functionally important bipartite networks within soil food webs. This could have important but unknown implications for the provision of key ecosystem functions and associated services driven by the organisms forming these networks if other taxa cannot cope with them.This article is part of the theme issue 'Ecological complexity and the biosphere: the next 30 years'.
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