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The influence of natural environmental factors on benthic diatom communities from the Windmill Islands, Antarctica

Citation

Cunningham, LK and McMinn, A, The influence of natural environmental factors on benthic diatom communities from the Windmill Islands, Antarctica, Phycologia, 43, (6) pp. 744-755. ISSN 0031-8884 (2004) [Refereed Article]

DOI: doi:10.2216/i0031-8884-43-6-744.1

Abstract

The species composition of benthic diatom communities responds rapidly to environmental change. At four shallow benthic sites in the Windmill Islands, Casey, East Antarctica, redundancy analysis indicated that changes in sediment grain-size, light availability and water depth account for 30% of the variation observed in the relative abundances of diatom taxa. The amount of mud (< 63 μm) present within the sediments explained 18% of the variation in the relative abundances of diatom species observed in samples from all four locations. Within two locations, the amount of mud present explained 25% or more of the total variation in relative species abundance observed. Differences between locations explained 28% of the variation observed in relative species abundance; however, the majority of this was due to changes in grain-size, light availability and depth between the locations. It is unclear what other parameters contribute to observed differences between locations.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Plant Biology
Research Field:Phycology (incl. Marine Grasses)
Objective Division:Environment
Objective Group:Natural Hazards
Objective Field:Natural Hazards in Marine Environments
Author:Cunningham, LK (Dr Laura Cunningham)
Author:McMinn, A (Professor Andrew McMinn)
ID Code:32196
Year Published:2004
Web of Science® Times Cited:7
Deposited By:IASOS
Deposited On:2004-08-01
Last Modified:2005-06-06
Downloads:0

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