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. 2017 Oct 13;12(1):225–236. doi: 10.1038/ismej.2017.162

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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/

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Temperature and pH of hot springs that were sampled and the dominance of aerobic Archaea in acidic hot springs. (a) Temperature and pH for spring samples (black circles; n=72) are overlaid on temperature and pH of thermal features downloaded from the Yellowstone National Park Research Coordination Network database (gray circles; n=7693). (b) The ratio of archaeal:bacterial 16S rRNA genes from 72 YNP hot springs plotted as a function of spring temperature and pH. Legend below x axis provides size and color for corresponding ratio magnitude. (c) The percentage of the archaeal community inferred to be capable of aerobic respiration, based on physiological inference to the closest related cultivar, nearest cultivated isolate or genome in springs that yielded 16S rRNA gene sequence.