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Plateau vegetation on sub-Antarctic Macquarie Island

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Selkirk, PM (2012) Plateau vegetation on sub-Antarctic Macquarie Island. Papers and Proceedings of the Royal Society of Tasmania, 146. pp. 71-79. ISSN 0080-4703

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Abstract

The plateau of sub-Antarctic Macquarie Island supports an open short herb, feldmark vegetation that is markedly affected by the prevailing
strong westerly winds. This paper reports on a line transect survey carried out in 1980 which documents variation then apparent in species
composition in this vegetation. Sixty-two species were recorded, with plant occurrences along 16 transects ranging from 16.7–99.5%.
The cushion plant Azorella macquariensis Orchard was an important component of the plateau vegetation: it occurred at 14 of the 16 sites
surveyed, with occurrences up to 50%. The dieback reported in Azorella macquariensis in 2008 was, by 2012, regarded as extensive and
severe throughout its range. The data presented here well precede the first records of the dieback, and contribute to early descriptive data
against which future developments in the plateau vegetation of Macquarie Island can be evaluated.

Item Type: Article
Keywords: Royal Society of Tasmania, RST, Van Diemens Land, natural history, science, ecology, taxonomy, botany, zoology, geology, geography, papers & proceedings, Australia, sub-Antarctic, Macquarie Island, feldmark, Azorella macquariensis, dieback
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
Page Range: pp. 71-79
ISSN: 0080-4703
Copyright Information:

Copyright The Royal Society of Tasmania

Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Date Deposited: 23 Jun 2015 22:18
Last Modified: 23 Jun 2015 22:18
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