Controls on the distribution of productivity and organic resources in Antarctic Dry Valley soils
The Antarctic Dry Valleys are regarded as one of the harshest terrestrial habitats on Earth because of the extremely cold and dry conditions. Despite the extreme environment and scarcity of conspicuous primary producers, the soils contain organic carbon and heterotrophic micro-organisms and inverteb...
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ftpubmed:oai:pubmedcentral.nih.gov:1635502 2023-05-15T14:00:56+02:00 Controls on the distribution of productivity and organic resources in Antarctic Dry Valley soils Hopkins, D.W Sparrow, A.D Novis, P.M Gregorich, E.G Elberling, B Greenfield, L.G 2006-07-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1635502 http://www.ncbi.nlm.nih.gov/pubmed/17015369 https://doi.org/10.1098/rspb.2006.3595 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1635502 http://www.ncbi.nlm.nih.gov/pubmed/17015369 http://dx.doi.org/10.1098/rspb.2006.3595 © 2006 The Royal Society Review Text 2006 ftpubmed https://doi.org/10.1098/rspb.2006.3595 2013-08-31T09:56:00Z The Antarctic Dry Valleys are regarded as one of the harshest terrestrial habitats on Earth because of the extremely cold and dry conditions. Despite the extreme environment and scarcity of conspicuous primary producers, the soils contain organic carbon and heterotrophic micro-organisms and invertebrates. Potential sources of organic compounds to sustain soil organisms include in situ primary production by micro-organisms and mosses, spatial subsidies from lacustrine and marine-derived detritus, and temporal subsidies (‘legacies’) from ancient lake deposits. The contributions from these sources at different sites are likely to be influenced by local environmental conditions, especially soil moisture content, position in the landscape in relation to lake level oscillations and legacies from previous geomorphic processes. Here we review the abiotic factors that influence biological activity in Dry Valley soils and present a conceptual model that summarizes mechanisms leading to organic resources therein. Text Antarc* Antarctic PubMed Central (PMC) Antarctic The Antarctic Proceedings of the Royal Society B: Biological Sciences 273 1602 2687 2695 |
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PubMed Central (PMC) |
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English |
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Review |
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Review Hopkins, D.W Sparrow, A.D Novis, P.M Gregorich, E.G Elberling, B Greenfield, L.G Controls on the distribution of productivity and organic resources in Antarctic Dry Valley soils |
topic_facet |
Review |
description |
The Antarctic Dry Valleys are regarded as one of the harshest terrestrial habitats on Earth because of the extremely cold and dry conditions. Despite the extreme environment and scarcity of conspicuous primary producers, the soils contain organic carbon and heterotrophic micro-organisms and invertebrates. Potential sources of organic compounds to sustain soil organisms include in situ primary production by micro-organisms and mosses, spatial subsidies from lacustrine and marine-derived detritus, and temporal subsidies (‘legacies’) from ancient lake deposits. The contributions from these sources at different sites are likely to be influenced by local environmental conditions, especially soil moisture content, position in the landscape in relation to lake level oscillations and legacies from previous geomorphic processes. Here we review the abiotic factors that influence biological activity in Dry Valley soils and present a conceptual model that summarizes mechanisms leading to organic resources therein. |
format |
Text |
author |
Hopkins, D.W Sparrow, A.D Novis, P.M Gregorich, E.G Elberling, B Greenfield, L.G |
author_facet |
Hopkins, D.W Sparrow, A.D Novis, P.M Gregorich, E.G Elberling, B Greenfield, L.G |
author_sort |
Hopkins, D.W |
title |
Controls on the distribution of productivity and organic resources in Antarctic Dry Valley soils |
title_short |
Controls on the distribution of productivity and organic resources in Antarctic Dry Valley soils |
title_full |
Controls on the distribution of productivity and organic resources in Antarctic Dry Valley soils |
title_fullStr |
Controls on the distribution of productivity and organic resources in Antarctic Dry Valley soils |
title_full_unstemmed |
Controls on the distribution of productivity and organic resources in Antarctic Dry Valley soils |
title_sort |
controls on the distribution of productivity and organic resources in antarctic dry valley soils |
publisher |
The Royal Society |
publishDate |
2006 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1635502 http://www.ncbi.nlm.nih.gov/pubmed/17015369 https://doi.org/10.1098/rspb.2006.3595 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1635502 http://www.ncbi.nlm.nih.gov/pubmed/17015369 http://dx.doi.org/10.1098/rspb.2006.3595 |
op_rights |
© 2006 The Royal Society |
op_doi |
https://doi.org/10.1098/rspb.2006.3595 |
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Proceedings of the Royal Society B: Biological Sciences |
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273 |
container_issue |
1602 |
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2687 |
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2695 |
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1766270338156462080 |