Photosynthetic pigments in soils from northern Victoria Land (continental Antarctica) as proxies for soil algal community structure and function
Although soil algae are among the main primary producers in most terrestrial ecosystems of continental Antarctica, there are very few quantitative studies on their relative proportion in the main algal groups and on how their distribution is affected by biotic and abiotic factors. Such knowledge is...
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ftunivsiena:oai:usiena-air.unisi.it:11365/6681 2024-04-21T07:51:32+00:00 Photosynthetic pigments in soils from northern Victoria Land (continental Antarctica) as proxies for soil algal community structure and function COLACEVICH, A. CARUSO, T. BORGHINI, F. BARGAGLI, R. Colacevich, A. Caruso, T. Borghini, F. Bargagli, R. 2009 STAMPA http://hdl.handle.net/11365/6681 https://doi.org/10.1016/j.soilbio.2009.07.020 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000271047800012 volume:41 issue:10 firstpage:2105 lastpage:2114 numberofpages:10 journal:SOIL BIOLOGY & BIOCHEMISTRY http://hdl.handle.net/11365/6681 doi:10.1016/j.soilbio.2009.07.020 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-70249148522 info:eu-repo/semantics/closedAccess Antarctic soil Model selection Photosynthetic pigment Physico-chemical feature Soil algae info:eu-repo/semantics/article 2009 ftunivsiena https://doi.org/10.1016/j.soilbio.2009.07.020 2024-03-28T00:49:21Z Although soil algae are among the main primary producers in most terrestrial ecosystems of continental Antarctica, there are very few quantitative studies on their relative proportion in the main algal groups and on how their distribution is affected by biotic and abiotic factors. Such knowledge is essential for understanding the functioning of Antarctic terrestrial ecosystems. We therefore analyzed biological soil crusts from northern Victoria Land to determine their pH, electrical conductivity (EC), water content (W), total and organic C (TC and TOC) and total N (TN) contents, and the presence and abundance of photosynthetic pigments. In particular, the latter were tested as proxies for biomass and coarse-resolution community structure. Soil samples were collected from five sites with known soil algal communities and the distribution of pigments was shown to reflect differences in the relative proportions of Chlorophyta, Cyanophyta and Bacillariophyta in these sites. Multivariate and univariate models strongly indicated that almost all soil variables (EC, W, TOC and TN) were important environmental correlates of pigment distribution. However, a significant amount of variation is independent of these soil variables and may be ascribed to local variability such as changes in microclimate at varying spatial and temporal scales. There are at least five possible sources of local variation: pigment preservation, temporal variations in water availability, temporal and spatial interactions among environmental and biological components, the local-scale patchiness of organism distribution, and biotic interactions. © 2009 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica Victoria Land Università degli Studi di Siena: USiena air Soil Biology and Biochemistry 41 10 2105 2114 |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
topic |
Antarctic soil Model selection Photosynthetic pigment Physico-chemical feature Soil algae |
spellingShingle |
Antarctic soil Model selection Photosynthetic pigment Physico-chemical feature Soil algae COLACEVICH, A. CARUSO, T. BORGHINI, F. BARGAGLI, R. Photosynthetic pigments in soils from northern Victoria Land (continental Antarctica) as proxies for soil algal community structure and function |
topic_facet |
Antarctic soil Model selection Photosynthetic pigment Physico-chemical feature Soil algae |
description |
Although soil algae are among the main primary producers in most terrestrial ecosystems of continental Antarctica, there are very few quantitative studies on their relative proportion in the main algal groups and on how their distribution is affected by biotic and abiotic factors. Such knowledge is essential for understanding the functioning of Antarctic terrestrial ecosystems. We therefore analyzed biological soil crusts from northern Victoria Land to determine their pH, electrical conductivity (EC), water content (W), total and organic C (TC and TOC) and total N (TN) contents, and the presence and abundance of photosynthetic pigments. In particular, the latter were tested as proxies for biomass and coarse-resolution community structure. Soil samples were collected from five sites with known soil algal communities and the distribution of pigments was shown to reflect differences in the relative proportions of Chlorophyta, Cyanophyta and Bacillariophyta in these sites. Multivariate and univariate models strongly indicated that almost all soil variables (EC, W, TOC and TN) were important environmental correlates of pigment distribution. However, a significant amount of variation is independent of these soil variables and may be ascribed to local variability such as changes in microclimate at varying spatial and temporal scales. There are at least five possible sources of local variation: pigment preservation, temporal variations in water availability, temporal and spatial interactions among environmental and biological components, the local-scale patchiness of organism distribution, and biotic interactions. © 2009 Elsevier Ltd. All rights reserved. |
author2 |
Colacevich, A. Caruso, T. Borghini, F. Bargagli, R. |
format |
Article in Journal/Newspaper |
author |
COLACEVICH, A. CARUSO, T. BORGHINI, F. BARGAGLI, R. |
author_facet |
COLACEVICH, A. CARUSO, T. BORGHINI, F. BARGAGLI, R. |
author_sort |
COLACEVICH, A. |
title |
Photosynthetic pigments in soils from northern Victoria Land (continental Antarctica) as proxies for soil algal community structure and function |
title_short |
Photosynthetic pigments in soils from northern Victoria Land (continental Antarctica) as proxies for soil algal community structure and function |
title_full |
Photosynthetic pigments in soils from northern Victoria Land (continental Antarctica) as proxies for soil algal community structure and function |
title_fullStr |
Photosynthetic pigments in soils from northern Victoria Land (continental Antarctica) as proxies for soil algal community structure and function |
title_full_unstemmed |
Photosynthetic pigments in soils from northern Victoria Land (continental Antarctica) as proxies for soil algal community structure and function |
title_sort |
photosynthetic pigments in soils from northern victoria land (continental antarctica) as proxies for soil algal community structure and function |
publishDate |
2009 |
url |
http://hdl.handle.net/11365/6681 https://doi.org/10.1016/j.soilbio.2009.07.020 |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000271047800012 volume:41 issue:10 firstpage:2105 lastpage:2114 numberofpages:10 journal:SOIL BIOLOGY & BIOCHEMISTRY http://hdl.handle.net/11365/6681 doi:10.1016/j.soilbio.2009.07.020 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-70249148522 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.soilbio.2009.07.020 |
container_title |
Soil Biology and Biochemistry |
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41 |
container_issue |
10 |
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2105 |
op_container_end_page |
2114 |
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