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A large-scale assessment of lakes reveals a pervasive signal of land use on bacterial communities.

Author(s): Kraemer SA, Barbosa da Costa N, Shapiro BJ, Fradette M, Huot Y, Walsh DA

ISME J. 2020 Aug 07;: Authors: Kraemer SA, Barbosa da Costa N, Shapiro BJ, Fradette M, Huot Y, Walsh DA

Article GUID: 32770118
The NSERC Canadian Lake Pulse Network: A national assessment of lake health providing science for water management in a changing climate.

Author(s): Huot Y, Brown CA, Potvin G, Antoniades D, Baulch HM, Beisner BE, Bélanger S, Brazeau S, Cabana H, Cardille JA, Del Giorgio PA, Gregory-Eaves...

Sci Total Environ. 2019 Aug 04;695:133668 Authors: Huot Y, Brown CA, Potvin G, Antoniades D, Baulch HM, Beisner BE, Bélanger S, Brazeau S, Cabana H, Cardille JA, Del Giorgio PA, Gregory-Eaves...

Article GUID: 31419692
Microbial life under ice: Metagenome diversity and in situ activity of Verrucomicrobia in seasonally ice-covered Lakes.

Author(s): Tran P, Ramachandran A, Khawasik O, Beisner BE, Rautio M, Huot Y, Walsh DA

Environ Microbiol. 2018 Jul;20(7):2568-2584 Authors: Tran P, Ramachandran A, Khawasik O, Beisner BE, Rautio M, Huot Y, Walsh DA

Article GUID: 29921005
Title:A large-scale assessment of lakes reveals a pervasive signal of land use on bacterial communities.
Authors:Kraemer SA,  Barbosa da Costa N,  Shapiro BJ,  Fradette M,  Huot Y,  Walsh DA
Link:https://www.ncbi.nlm.nih.gov/pubmed/32770118
DOI:10.1038/s41396-020-0733-0
Category:ISME J
PMID:32770118
Dept Affiliation: BIOLOGY
1 Department of Biology, Concordia University, Montréal, QC, Canada. Susanne.kraemer@mail.concordia.ca.
2 Department of Biology, Université de Montréal, Montréal, QC, Canada.
3 Department of Microbiology and Immunology, McGill University, Montréal, QC, Canada.
4 McGill Genome Centre, Montréal, QC, Canada.
5 Department of Applied Geomatics, Université de Sherbrooke, Sherbrooke, QC, Canada.
6 Department of Biology, Concordia University, Montréal, QC, Canada.

Description:

A large-scale assessment of lakes reveals a pervasive signal of land use on bacterial communities.

ISME J. 2020 Aug 07;:

Authors: Kraemer SA, Barbosa da Costa N, Shapiro BJ, Fradette M, Huot Y, Walsh DA

Abstract

Lakes play a pivotal role in ecological and biogeochemical processes and have been described as "sentinels" of environmental change. Assessing "lake health" across large geographic scales is critical to predict the stability of their ecosystem services and their vulnerability to anthropogenic disturbances. The LakePulse research network is tasked with the assessment of lake health across gradients of land use on a continental scale. Bacterial communities are an integral and rapidly responding component of lake ecosystems, yet large-scale responses to anthropogenic activity remain elusive. Here, we assess the ecological impact of land use on bacterial communities from over 200 lakes covering more than 660,000?km2 across Eastern Canada. In addition to community variation between ecozones, land use across Eastern Canada also appeared to alter diversity, community composition, and network structure. Specifically, increasing anthropogenic impact within the watershed lowered diversity. Likewise, community composition was significantly correlated with agriculture and urban development within a watershed. Interaction networks showed decreasing complexity and fewer keystone taxa in impacted lakes. Moreover, we identified potential indicator taxa of high or low lake water quality. Together, these findings point to detectable bacterial community changes of largely unknown consequences induced by human activity within lake watersheds.

PMID: 32770118 [PubMed - as supplied by publisher]