Biogeosciences
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Articles | Volume 22, issue 15
Articles | Volume 22, issue 15
https://doi.org/10.5194/bg-22-3931-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-3931-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 15
Research article
 | 
14 Aug 2025
Research article |  | 14 Aug 2025

Hot-spring inputs and climate drive dynamic shifts in archaeal communities in Lake Magadi, Kenya Rift Valley

Evan R. Collins, Troy M. Ferland, Isla S. Castañeda, R. Bernhart Owen, Tim K. Lowenstein, Andrew S. Cohen, Robin W. Renaut, Molly D. O'Beirne, and Josef P. Werne

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Short summary
Archaeal molecular fossils (tetraethers) have been used around the globe to track changes in climate. Little is known about the archaeal response to environmental change in soda lakes, especially lakes influenced by hydrothermal inputs. For the first time in Lake Magadi, we show tetraethers tracking abrupt changes in methane and non-methane producers due to hydrothermal inputs to the lake. This study provides insight into the role of hydrothermal water and methane production in soda lakes.
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