上冰川和亚冰川生态系统对青藏高原郭琼岗日冰川前冰川生态系统群落的不同贡献

IF 8.1 1区 地球科学 Q1 ENVIRONMENTAL SCIENCES Communications Earth & Environment Pub Date : 2024-10-29 DOI:10.1038/s43247-024-01809-6
Zhihao Zhang, Yongqin Liu, Keshao Liu, Yuying Chen, Xuezi Guo, Mukan Ji, Weishu Zhao
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引用次数: 0

摘要

冰川正经历着前所未有的全球变暖,导致冰川生态系统中的微生物群落和营养物质运输发生了重大变化。然而,人们对上冰川和亚冰川生态系统对前冰川生态系统的影响仍然知之甚少。在这里,我们利用 16S rRNA 测序技术研究了青藏高原三个冰川生态系统中七个生境的微生物群落。结果发现,与其他生态系统相比,前冰川生态系统表现出更高的α多样性,但网络稳定性较低。此外,超冰川生态系统和亚冰川生态系统对前冰川生态系统群落多样性和稳定性的贡献不同。超冰川生态系统提供了更多的高丰度物种,对原冰川生态系统的稳定性产生了更大的影响,而亚冰川生态系统则释放了更广泛的多样化类群。这些发现凸显了超冰川生态系统和亚冰川生态系统对冰川环境中微生物群落动力学的不同影响,为冰川退缩时它们之间的相互作用以及对下游环境的潜在影响提供了启示。根据青藏高原的原位数据,冰川生态系统群落结构是由高丰度的超冰川生态系统和高多样性的亚冰川生态系统共同驱动的
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Supraglacial and subglacial ecosystems contribute differently towards proglacial ecosystem communities in Kuoqionggangri Glacier, Tibetan Plateau
Glaciers are experiencing unprecedented global warming, resulting in significant changes to microbial communities and nutrient transport within glacial ecosystems. However, the influence of supraglacial and subglacial ecosystems on the proglacial ecosystem remains poorly understood. Here, we investigated microbial communities across seven habitats in three glacial ecosystems on the Tibetan Plateau using 16S rRNA sequencing. Our results revealed that the proglacial ecosystem exhibited higher alpha diversity but lower network stability than other ecosystems. Moreover, supraglacial and subglacial ecosystems contributed differently to the community diversity and stability of the proglacial ecosystem. Supraglacial ecosystems provided more high-abundance species and had a greater impact on the proglacial ecosystem’s stability, while subglacial ecosystems released a broader range of diverse taxa. These findings highlight the distinct influences of supraglacial and subglacial ecosystems on microbial community dynamics in proglacial environments, offering insights into their interactions and potential impacts on downstream environments as glaciers retreat. Proglacial ecosystem community structure is driven both by high-abundance supraglacial ecosystems and high-diversity subglacial ecosystems, according to in-situ data from the Tibetan Plateau
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来源期刊
Communications Earth & Environment
Communications Earth & Environment Earth and Planetary Sciences-General Earth and Planetary Sciences
CiteScore
8.60
自引率
2.50%
发文量
269
审稿时长
26 weeks
期刊介绍: Communications Earth & Environment is an open access journal from Nature Portfolio publishing high-quality research, reviews and commentary in all areas of the Earth, environmental and planetary sciences. Research papers published by the journal represent significant advances that bring new insight to a specialized area in Earth science, planetary science or environmental science. Communications Earth & Environment has a 2-year impact factor of 7.9 (2022 Journal Citation Reports®). Articles published in the journal in 2022 were downloaded 1,412,858 times. Median time from submission to the first editorial decision is 8 days.
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