The microarthropods of sub-Antarctic Prince Edward Island: a quantitative assessment

被引：0
作者：
Elizabeth A. Hugo
Steven L. Chown
Melodie A. McGeoch
机构：
[1] Stellenbosch University,Department of Conservation Ecology
[2] Stellenbosch University,Centre for Invasion Biology, Department of Conservation Ecology and Entomology
[3] Stellenbosch University,Centre for Invasion Biology, Department of Botany and Zoology
来源：
Polar Biology | 2006年 / 30卷
关键词：
Species Richness; Habitat Type; Alien Species; Biological Invasion; Invasive Alien Species;
D O I：
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中图分类号：
学科分类号：
摘要：
The biodiversity in the sub-Antarctic region is threatened by climatic change and biological invasions, which makes the understanding of distributions of biotas on sub-Antarctic islands essential. Although the distribution patterns of vascular plants and insects on sub-Antarctic islands are well documented, this is not always the case for microarthropods. This study provides the first quantitative assessment of the distribution and abundance of microarthropods on Prince Edward Island (PEI), one of two islands in the Prince Edward Island group. Microarthropod community structure differed significantly between PEI and nearby Marion Island, with only two invasive alien species found on PEI compared with Marion Island. Furthermore, species richness, abundance and community structure differed significantly between habitat types on both islands. This study emphasizes the importance of quarantine measures when visiting PEI to maintain its status as one of the more pristine islands in the sub-Antarctic region.
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