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Arctic Microbiomes AG

(Ward Hunt Lake, Nunavut, Canada)

Chairs

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Anne Jungblut
Natural History Museum
United Kingdom
Contact

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Birgit Sattler
University of Innsbruck
​Austria
Contact

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Jérôme Comte
I.N.R.S.
Canada
Contact

Scope

Arctic ecosystems are underpinned by communities of diverse microscopic lifeforms, collectively referred to as microbiomes.

These occur as interacting networks that control biogeochemical processes such as greenhouse gas production and nutrient cycling, and they contribute to the base of food webs and affect populations changes at higher trophic levels.

Genomic analysis has shown that microbiomes contain assemblages of viruses, archaea, bacteria and microbial eukaryotes that are functionally as well as taxonomically diverse, but still little is known about the extent of that diversity, network relationships, spatial and temporal variation, and coupling to ecosystem processes.

​Microbiomes are specific to habitat types, and their study therefore also requires the characterisation of physical, chemical and biological properties of their host environment.
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Nostoc from the High Arctic
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Thermokarst pond microbial network  (Comte et al. 2016)

T-MOSAiC Activities

We aim to connect many of the microbiological research activities in the circumpolar North and consider T-MOSAiC themes such as gradients, connectivity, threshold effects (discontinuities) and emergent properties. Potential activities include:
  • Synthesis paper on past molecular, environmental and physiological work on Arctic microbiomes; knowledge gaps and new/old questions that have not been but should be addressed, and use of newest tools, multidisciplinary approaches and international efforts to address questions.
  • Circumpolar analysis of specific microbial taxa or assemblages; for example, Nostoc commune and its associated microbiome.
  • Development of an Arctic microbial diversity data base with environmental metadata, via existing resources.
  • Evaluation of cryopreservation protocols and rationale for microbial mats and other microbial assemblages
  • Synthesis article describing culture collections of Arctic microbiota and their analysis.
  • Evaluation of snow-ice microbiota and emergent property effects, for example on albedo.
  • Analysis of emerging groups of microbiota and their distribution relative to environmental discontinuities (such as anoxia) and gradients (such as rivers to Arctic seas); e.g. new viral groups; Candidate Phyla Radiation Bacteria; Woesearchaeota.
  • Synthesis of microbiome network and gradient analyses in Arctic habitats, for example relative to permafrost carbon release.

Members (updated regularly)

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Alex Culley
Viral Ecology
Canada
Contact

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Robert Schwefel
Physical Limnology
United States
Contact

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Sylvia Bonilla
Cyanobacteria
Uruguay
Contact

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Myriam Labbé
Viruses/Arctic Lakes
Canada
Contact

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Annarita Poli
Extremophiles
Italy
Contact

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Alizée Le Moigne
Bacteria/Shallow Ponds
Switzerland
Contact

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Roger Bull
Biodiversity/Biobanking
Canada
Contact

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Warwick F. Vincent
Aq. Microbial Ecosystems
Canada
Contact

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Sally McIntyre
Phys-Biological Coupling
U.S.A.
Contact

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Katherine Schexneider

U.S.A.
Contact

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Jacques Corbeil
Data and Bioinformatics
Canada
Contact

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Scott Zolkos
Biogeochemistry
Canada
Contact

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Ilaria Finore
Extremophiles 
Italy
Contact

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Maria Scheel
Permafrost, -omics 
Denmark
Contact

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Under construction
Under construction

IASC

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