Shifts in diversity and function of lake bacterial communities upon glacier retreat

The ISME Journal
Hannes Peter, R Sommaruga

Abstract

Global climate change is causing a wastage of glaciers and threatening biodiversity in glacier-fed ecosystems. The high turbidity typically found in those ecosystems, which is caused by inorganic particles and result of the erosive activity of glaciers is a key environmental factor influencing temperature and light availability, as well as other factors in the water column. Once these lakes loose hydrological connectivity to glaciers and turn clear, the accompanying environmental changes could represent a potential bottleneck for the established local diversity with yet unknown functional consequences. Here, we study three lakes situated along a turbidity gradient as well as one clear unconnected lake and evaluate seasonal changes in their bacterial community composition and diversity. Further, we assess potential consequences for community functioning. Glacier runoff represented a diverse source community for the lakes and several taxa were able to colonize downstream turbid habitats, although they were not found in the clear lake. Operational taxonomic unit-based alpha diversity and phylogenetic diversity decreased along the turbidity gradient, but metabolic functional diversity was negatively related to turbidity. No evidenc...Continue Reading

References

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Citations

Apr 21, 2016·Scientific Reports·Fabian DrewesRuben Sommaruga
Mar 6, 2018·FEMS Microbiology Ecology·Nathan A M ChrismasPatricia Sánchez-Baracaldo
Jul 12, 2017·Inland Waters : Journal of the International Society of Limnology·Hannes Peter, Ruben Sommaruga
May 28, 2019·FEMS Microbiology Ecology·Weidong KongRachael M Morgan-Kiss
Dec 6, 2019·Environmental Science. Processes & Impacts·Yi LiLihua Niu
Apr 6, 2019·BMC Genomics·Joseph L SevignyW Kelley Thomas
Jun 11, 2020·Scientific Reports·Rafaela Garrido GodoySabri Saeed Sanabani
Aug 17, 2019·Frontiers in Microbiology·Yiming JiangLi Deng
Jul 17, 2018·Frontiers in Plant Science·Gloria Torres-CortésMatthieu Barret
Nov 20, 2019·Nature Ecology & Evolution·Sophie Cauvy-Fraunié, Olivier Dangles
Oct 11, 2019·FEMS Microbiology Ecology·Maria Antonia CavacoJosh David Neufeld
Aug 9, 2018·Frontiers in Microbiology·Christopher B TrivediJohn R Spear
Sep 25, 2020·Global Change Biology·James J ElserJasmine E Saros
May 10, 2020·The Science of the Total Environment·Prakriti Sharma GhimireShichang Kang
Nov 7, 2020·The Science of the Total Environment·Zhengquan GuYongqin Liu
Feb 5, 2021·Environmental Microbiology Reports·Keilor Rojas-JimenezHans-Peter Grossart
Sep 25, 2021·Environmental Microbiology·Keshao LiuTrista J Vick-Majors
Mar 7, 2020·The Science of the Total Environment·Binhao WangQingyun Yan
Dec 6, 2021·The Science of the Total Environment·Qing WangLei Zhou

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Datasets Mentioned

BETA
PRJNA297573

Methods Mentioned

BETA
PCR

Software Mentioned

PyroNoise
FastTree
Sourcetracker
ordisurf
Phylogenetic Investigation of Communities by Reconstruction of...
EnGencore
R
vegan
mothur
envfit

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