The nature and importance of the sub-Antarctic

Selkirk, PM

doi:10.26749/rstpp.141.1.1

Cited by 17 publications

(17 citation statements)

References 31 publications

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“…For a botanist, the nature and location of the Southern Subpolar is simple: it is the region south of the temperate zone and north of the Antarctic zone. It is a region of much ocean and little land; a region where herbaceous flowering plants, bryophytes and lichens grow well, but where trees and shrubs are largely absent; it is a region where the tiny specks of land are strongly influenced by the vast ocean and where there are major connections between marine and terrestrial ecosystems (Selkirk 2007). …”

Section: Southern Subpolar Islandsmentioning

confidence: 99%

Austral lichenology: 1690–2008

Galloway¹

2008

New Zealand Journal of Botany

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This review summarises lichen work in the temperate Southern Hemisphere. A brief historical overview of austral lichenology is presented from the earliest European voyages of discovery up to the present day. Current knowledge is outlined for Australia, New Zealand, South Africa, southern South America, the Southern Subpolar islands, and Antarctica. Biogeographical patterns, and the importance of lichens in nutrient cycling, habitat restoration, and monitoring of global change, are also discussed from an austral perspective.

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Section: Southern Subpolar Islandsmentioning

confidence: 99%

Austral lichenology: 1690–2008

Galloway¹

2008

New Zealand Journal of Botany

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“…Within the maritime sub-Antarctic, there has been a significant warming trend in air surface temperatures at individual stations (Richard et al 2013). In particular, maritime sub-Antarctic islands are extremely sensitive to climatic change and can therefore be considered early identifiers of large-scale climate change (Selkirk 2007). The islands in the sub-Antarctic are some of the most pristine places in the world, where human activities and impacts are often limited to research stations.…”

Section: Introductionmentioning

confidence: 99%

“…1a) is ideally placed to contribute to understanding environmental change in the Southern Hemisphere. Therefore, observations from the island can provide valuable information pertaining to the nature of regional environmental change in the sub-Antarctic (Selkirk 2007). Given the observed warming and drying trends in temperature and precipitation on Marion Island (e.g.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen and oxygen isotope composition of precipitation and stream water on sub-Antarctic Marion Island

et al. 2017

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We measured the hydrogen and oxygen isotope composition (δ2H and δ18O) of precipitation and stream water from the Soft Plume River at multiple spatiotemporal scales on sub-Antarctic Marion Island, Indian sector of the Southern Ocean. Monthly precipitation δ2H and δ18O values ranged from -43.7‰ to -14.7‰ and from -7.0‰ to -3.3‰ (n=13), respectively. Stream water values ranged from -48.0‰ to -25.4‰ for δ2H and from -7.6‰ to -4.0‰ for δ18O (n=92). The monthly precipitation data yielded a local meteoric water line with the equation δ2H=8.4δ18O+11.4. There was no clear seasonality in isotope composition present in precipitation and stream water. Along the stream, no significant difference was observed between sites. However, δ2H and δ18O values were lower and more variable at the highest site. This is probably the result of the ‘amount effect’, where more precipitation fell at a higher elevation compared with a downstream site in the catchment. The findings illustrate spatiotemporal patterns in precipitation and stream water isotopes and provide insight into mechanisms affecting their composition on sub-Antarctic Marion Island.

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“…The nature of the region and the location and sizes of the islands within the region are identifi ed by Selkirk (2007) and Quilty (2007). Seashore ecology is infl uenced by a number of factors.…”

Section: The Region and The Islandsmentioning

confidence: 99%

Shore ecology in the sub-Antarctic

Simpson¹

2007

PPRST

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Research on the shores in the sub-Antarctic region is discussed with respect to how lines of investigation developed, current status, and what areas of research should attract priority in relation to both outstanding questions and concerns for the ecological well-being of the region. The remoteness of the sub-Antarctic requires coordination of effort and resources and it is suggested that greater advances could be made if there is international coordination in a more prescribed way.

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The nature and importance of the sub-Antarctic

Cited by 17 publications

References 31 publications

Austral lichenology: 1690–2008

Austral lichenology: 1690–2008

Hydrogen and oxygen isotope composition of precipitation and stream water on sub-Antarctic Marion Island

Shore ecology in the sub-Antarctic

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