Soil microalgal communities on an antarctic active volcano (Deception Island, South Shetlands)
Contemporary eruptive episodes and present volcanic activity at Deception Island have created a mosaic of different environmental conditions. In this study, the microalgal communities inhabiting 18 sites differing in geology, degree of disturbance and physico-chemical features (texture, water, organ...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_07224060_v30_n11_p1381_Fermani |
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todo:paper_07224060_v30_n11_p1381_Fermani2023-10-03T15:37:02Z Soil microalgal communities on an antarctic active volcano (Deception Island, South Shetlands) Fermani, P. Mataloni, G. Van De Vijver, B. Antarctica Colonization Community Disturbance Soil algae biomass canonical analysis cluster analysis community composition cyanobacterium diatom disturbance microalga soil ecosystem soil fauna species richness Antarctica Deception Island South Shetland Islands algae Bacillariophyta Cyanobacteria Contemporary eruptive episodes and present volcanic activity at Deception Island have created a mosaic of different environmental conditions. In this study, the microalgal communities inhabiting 18 sites differing in geology, degree of disturbance and physico-chemical features (texture, water, organic matter and nutrient contents) were characterized in terms of composition, species richness and biomass. One hundred and forty taxa were recorded, with richest communities associated with stable sites and some of the poorest ones in locations affected by recent eruptions. In accordance, a canonical correspondence analysis ordinated species and sites along the first axis according to the percentage of coarse particles, and degree of disturbance (eigenvalues 0.79 and 0.65, P = 0.04). Results of a cluster analysis grouped firstly those algal taxa with high fidelity to one set of environmental conditions, while "ubiquitous" ones had the lowest similarity values. These taxa, mainly filamentous Cyanobacteria and diatoms, are the only colonizers of harsher or recently formed environments. © 2007 Springer-Verlag. Fil:Fermani, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mataloni, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07224060_v30_n11_p1381_Fermani |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Antarctica Colonization Community Disturbance Soil algae biomass canonical analysis cluster analysis community composition cyanobacterium diatom disturbance microalga soil ecosystem soil fauna species richness Antarctica Deception Island South Shetland Islands algae Bacillariophyta Cyanobacteria |
| spellingShingle |
Antarctica Colonization Community Disturbance Soil algae biomass canonical analysis cluster analysis community composition cyanobacterium diatom disturbance microalga soil ecosystem soil fauna species richness Antarctica Deception Island South Shetland Islands algae Bacillariophyta Cyanobacteria Fermani, P. Mataloni, G. Van De Vijver, B. Soil microalgal communities on an antarctic active volcano (Deception Island, South Shetlands) |
| topic_facet |
Antarctica Colonization Community Disturbance Soil algae biomass canonical analysis cluster analysis community composition cyanobacterium diatom disturbance microalga soil ecosystem soil fauna species richness Antarctica Deception Island South Shetland Islands algae Bacillariophyta Cyanobacteria |
| description |
Contemporary eruptive episodes and present volcanic activity at Deception Island have created a mosaic of different environmental conditions. In this study, the microalgal communities inhabiting 18 sites differing in geology, degree of disturbance and physico-chemical features (texture, water, organic matter and nutrient contents) were characterized in terms of composition, species richness and biomass. One hundred and forty taxa were recorded, with richest communities associated with stable sites and some of the poorest ones in locations affected by recent eruptions. In accordance, a canonical correspondence analysis ordinated species and sites along the first axis according to the percentage of coarse particles, and degree of disturbance (eigenvalues 0.79 and 0.65, P = 0.04). Results of a cluster analysis grouped firstly those algal taxa with high fidelity to one set of environmental conditions, while "ubiquitous" ones had the lowest similarity values. These taxa, mainly filamentous Cyanobacteria and diatoms, are the only colonizers of harsher or recently formed environments. © 2007 Springer-Verlag. |
| format |
JOUR |
| author |
Fermani, P. Mataloni, G. Van De Vijver, B. |
| author_facet |
Fermani, P. Mataloni, G. Van De Vijver, B. |
| author_sort |
Fermani, P. |
| title |
Soil microalgal communities on an antarctic active volcano (Deception Island, South Shetlands) |
| title_short |
Soil microalgal communities on an antarctic active volcano (Deception Island, South Shetlands) |
| title_full |
Soil microalgal communities on an antarctic active volcano (Deception Island, South Shetlands) |
| title_fullStr |
Soil microalgal communities on an antarctic active volcano (Deception Island, South Shetlands) |
| title_full_unstemmed |
Soil microalgal communities on an antarctic active volcano (Deception Island, South Shetlands) |
| title_sort |
soil microalgal communities on an antarctic active volcano (deception island, south shetlands) |
| url |
http://hdl.handle.net/20.500.12110/paper_07224060_v30_n11_p1381_Fermani |
| work_keys_str_mv |
AT fermanip soilmicroalgalcommunitiesonanantarcticactivevolcanodeceptionislandsouthshetlands AT matalonig soilmicroalgalcommunitiesonanantarcticactivevolcanodeceptionislandsouthshetlands AT vandevijverb soilmicroalgalcommunitiesonanantarcticactivevolcanodeceptionislandsouthshetlands |
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1807321867506155520 |