Navegar

Colección

Datos Estadísticas

Artículo

La versión final de este artículo es de uso interno. El editor solo permite incluir en el repositorio el artículo en su versión post-print. Por favor, si usted la posee enviela a
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Cyanobacteria and eukaryotic algae, together with bacteria and fungi, are known to be primary colonizers of mineral soils throughout Antarctica. Their species diversity and soil coverage were studied in 18 soil polygons located at Cierva Point, Antarctic Peninsula. Undisturbed assemblages were dominated by filamentous Cyanobacteria and diatoms, whilst almost 40% of the 49 species recorded were observed only after enrichment culture. Nearly all of the isolates from enrichment cultures were Chlorophyta and Tribophyceae. This revealed a higher degree of complexity than reported for similar communities on Signy Island. Water content and concentrations of nutrients were determined at four representative sites, and did not appear to account for the large inter-polygon variation found in species composition and relative frequencies of occurrence. Variables describing community development were not significantly correlated with either area of the polygons or the minimum distance between them. This suggested that these features are not an important short-range barrier to dispersal for those 'weed' species dominating the community. Conversely, the relative frequencies of some of the most common species showed significant correlations with species diversity and soil coverage, and it is suggested that biotic interactions could account to a larger extent for community structure than previously reported from Signy Island fellfields.

Registro:

Documento: Artículo
Título:Structure and diversity of soil algal communities from Cierva Point (Antarctic Peninsula)
Autor:Mataloni, G.; Tell, G.; Wynn-Williams, D.D.
Filiación:Depto. Ciencias Biológicas, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, (1428) Buenos Aires, Argentina
British Antarctic Survey, High Cross, Madingley Road, Cambridge CB3 OET, United Kingdom
Palabras clave:algal community; community structure; soil microorganism; species diversity; Antarctica; Cierva Point; Chlorophyta; Tribophyceae
Año:2000
Volumen:23
Número:3
Página de inicio:205
Página de fin:211
DOI: http://dx.doi.org/10.1007/s003000050028
Título revista:Polar Biology
Título revista abreviado:Polar Biol.
ISSN:07224060
CODEN:POBID
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v23_n3_p205_Mataloni

Referencias:

  • Agraz, J.L., Quintana, R.D., Acero, J.M., Ecología de los ambientes terrestres en punta cierva. (costa de danco, península antártica) (1994) Inst Antart Argent Contrib, 439, pp. 1-31
  • Betgen, T., Rau, F., Beppler, D., Topographische karte 1:5000. Cierva point - Antarktische halbinsel (1997) IPG-university of Freiburg
  • Bölter, M., Analysis of soil microbial communities (autotrophs and heterotrophs) from King George Island (arctowski station) (1996) Proc NIPR Symp Polar Biol, 9, pp. 283-298
  • Broady, P.A., The terrestrial algae of Signy Island, South Orkney Islands (1979) Sci Rep Br Antarct Surv No., 98, pp. 1-117
  • Broady, P.A., Diversity, distribution and dispersal of Antarctic terrestrial algae (1996) Biodivers Conserv, 5, pp. 1307-1335
  • Davey, M.C., Ecology of terrestrial algae of the fellfield ecosystems of Signy Island, South Orkney Islands (1988) Br Antarct Surv Bull, 81, pp. 69-74
  • Davey, M.C., The seasonal periodicity of algae in Antarctic fellfield soils (1991) Holarct Ecol, 14, pp. 112-120
  • Davey, M.C., Rothery, P., Factors causing the limitation of growth of terrestrial algae in maritime Antarctica during late summer (1992) Polar Biol, 12, pp. 595-602
  • Davey, M.C., Rothery, P., Primary colonization by microalgae in relation to spatial variation in edaphic factors on Antarctic fellfield soils (1993) J Ecol, 81, pp. 335-343
  • Digby, P.G., Kempton, R.A., (1987) Multivariate Analysis of Ecological Communities, , Chapman & Hall, London
  • Ellis-Evans, J.C., Walton, D., The process of colonisation in antarctic terrestrial and freshwater ecosystems (1990) Proc NIPR Symp Polar Biol, 3, pp. 151-163
  • MacArthur, R.H., Wilson, E.O., (1967) The Theory of Island Biogeography, , Princeton University Press, Princeton
  • Mackereih, J.F.H., Hiron, J., Talling, J.F., Water analysis: Some revised methods for limnologists (1978) Freshwater Biol Assoc Sci Publ, 36, pp. 1-117
  • Magurran, A.E., (1988) Ecological Diversity and Its Measurement, , Chapman & Hall, London
  • Mataloni, G., Tesolín, G., A preliminary survey of cryobiontic algal communities from cierva point (Antarctic Peninsula) (1997) Antarct Sci, 9, pp. 250-257
  • Mataloni, G., Tesolín, G., Tell, G., Characterization of a small eutrophic Antarctic lake (Otero Lake, cierva point) on the basis of algal assemblages and water chemistry (1998) Polar Biol, 19, pp. 107-114
  • Ohtani, S., Akiyama, M., Kanda, H., Analysis of antarctic soil algae by the direct observation using the contact slide method (1991) Antarct Rec, 35, pp. 285-295
  • Reynolds, J.M., The distribution of mean annual temperatures in the Antarctic Peninsula (1981) Br Antarct Surv Bull, 59, pp. 123-131
  • Smith, R.I.L., Terrestrial and freshwater biotic components of the western Antarctic Peninsula (1996) Antarct Res Ser, 70, pp. 15-59
  • Tesolin, G., Mataloni, G., Tell, G., Preliminary survey of the algal communities from lentic microlimnotopes of cierva point (Antarctic Peninsula) (1997) IV Jornadas Sobre Investigaciones Antárticas, Buenos Aires, , 1-5 September 1997
  • Wynn-Williams, D.D., Microbial colonization processes in Antarctic fellfield soils - An experimental overview (1990) Proc NIPR Symp Polar Biol, 3, pp. 164-178
  • Wynn-Williams, D.D., Microbial processes and initial stabilization of fellfield soil (1993) Primary Succession on Land, , Blackwell, Oxford
  • Wynn-Williams, D.D., Response of pioneer soil microalgal colonists to environmental change in Antarctica (1996) Microb Ecol, 31, pp. 177-188

Citas:

---------- APA ----------
Mataloni, G., Tell, G. & Wynn-Williams, D.D. (2000) . Structure and diversity of soil algal communities from Cierva Point (Antarctic Peninsula). Polar Biology, 23(3), 205-211.
http://dx.doi.org/10.1007/s003000050028
---------- CHICAGO ----------
Mataloni, G., Tell, G., Wynn-Williams, D.D. "Structure and diversity of soil algal communities from Cierva Point (Antarctic Peninsula)" . Polar Biology 23, no. 3 (2000) : 205-211.
http://dx.doi.org/10.1007/s003000050028
---------- MLA ----------
Mataloni, G., Tell, G., Wynn-Williams, D.D. "Structure and diversity of soil algal communities from Cierva Point (Antarctic Peninsula)" . Polar Biology, vol. 23, no. 3, 2000, pp. 205-211.
http://dx.doi.org/10.1007/s003000050028
---------- VANCOUVER ----------
Mataloni, G., Tell, G., Wynn-Williams, D.D. Structure and diversity of soil algal communities from Cierva Point (Antarctic Peninsula). Polar Biol. 2000;23(3):205-211.
http://dx.doi.org/10.1007/s003000050028