Antarctic Terrestrial Microbiology: Physical and Biological by Don A. Cowan

By Don A. Cowan

This ebook brings jointly the various world’s major specialists within the fields of Antarctic terrestrial soil ecology, delivering a complete and entirely updated research of the prestige of Antarctic soil microbiology.

Antarctic terrestrial soils characterize some of the most severe environments on the earth. as soon as considered mostly sterile, it really is referred to now that those diversified and sometimes really good severe habitats harbor a truly wide selection of other microorganisms.

Antarctic soil groups are really basic, yet no longer unsophisticated. contemporary phylogenetic and microscopic stories have validated that those groups have good confirmed trophic structuring and play an important position in nutrient biking in those chilly and sometimes dry wilderness ecosystems. they're unusually conscious of swap and in all likelihood delicate to climatic perturbation.

Antarctic terrestrial soils additionally harbor really good ‘refuge’habitats, the place microbial groups strengthen lower than (and inside) translucent rocks. those cryptic habitats supply detailed types for figuring out the actual and organic ‘drivers’ of neighborhood improvement, functionality and evolution.

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Additional resources for Antarctic Terrestrial Microbiology: Physical and Biological Properties of Antarctic Soils

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Conserv Biol 22:1544–1551 Bajerski F, Wagner D (2013) Bacterial succession in Antarctic soils of two glacier forefields on Larsemann Hills, East Antarctica. FEMS Microbiol Ecol 85:128–142 Balks MR, Lopez-Martinez JN, Goryachkin SV, Mergelov NS, Schaefer CEGR, Simas FNB, Almond PC, Claridge GGC, McLeod M, Scarrow J (2013) Windows on Antarctic soillandscape relationships: comparison across selected regions of Antarctica. Geol S London Spec Publ. 9 Bargagli R (2008) Environmental contamination in Antarctic ecosystems.

2012). 5 Temporal Variation in Bacterial Communities Recent evidence suggests that temporal variation in bacterial community structure may occur rapidly in response to environmental change in Antarctic soils. In a soil warming experiment on the Antarctic Peninsula, soil community compositions were found to shift in response to an increase of 2 °C over the course of just 3 years (Yergeau et al. 2012). Acidobacteria representation was found to decrease in soils of higher temperature, while Alphaproteobacteria representation increased.

2 Transverse section of silicified Araucarioxylon, an ancient gymnosperm, from the Fremouw Peak locality in the Beardmore Glacier area, Antarctica with a white pocket rot caused by a wood-decay fungus. This fossil wood is from the Triassic period and demonstrates the presence of fungi interacting with trees in Antarctica [200 million years ago. Diameter of the fossil wood shown is approximately 7 cm. Photograph by the authors, fossil wood from Thomas Taylor, University of Kansas typically dominant role as wood-decay fungi in temperate ecosystems has been taken over by ascomycetes in Antarctica (Blanchette et al.

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