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The microbial food web is both complex and variable, comprising a variety of autotrophic and heterotrophic microorganisms, fungi and eukaryotic microfauna (Reference Margesin, Zacke and Schinner Margesin and others, 2002; Reference Hodson Hodson and others, 2008). Cryoconite, meaning ‘cold dust’, is granular organic-rich debris found ...
19 Απρ 2017 · As well as influencing the physical structure of cryoconite, cyanobacteria are also of substantial importance to the food web of cryoconite holes, with between 75% and 95% of available...
9 Ιουλ 2024 · Cryoconite is a widespread, black-colored sediment formed on the glacier surface as a result of interaction between mineral particles present on the ice and complex microbial communities that...
10 Ιουλ 2024 · Cryoconite holes are highly structured, small-scale ecosystems, at the base of which are microalgae, cyanobacteria, and chemoautotrophic bacteria, which, through primary production, enrich the cryoconite with organic matter.
The Arctic contains a variety of rich ecosystems, each housing intricate transfers of matter and energy among its members. In this activity, students will learn about some of the producers, consumers, and decomposers that are a part of the terrestrial, marine, and freshwater ecosystems of the Arctic, and then they will create food web models to ...
3 Ιουλ 2013 · Cryoconite is a microbe–mineral aggregate which darkens the ice surface of glaciers. Microbial process and marker gene PCR-dependent measurements reveal active and diverse cryoconite microbial communities on polar glaciers.
24 Απρ 2012 · Organisms found within cryoconite communities can potentially be linked into a multi-trophic web (Säwström et al. 2002). At the base of this food web, bacterial and eukaryotic autotrophic organisms exist, with the potential to fix atmospheric carbon dioxide into biologically available organic carbon, through photosynthesis.
