Open Access Repository

Climate change drives expansion of Antarctic ice-free habitat

Lee, JR, Raymond, B, Bracegirdle, TJ, Chades, I, Fuller, RA, Shaw, JD and Terauds, A 2017 , 'Climate change drives expansion of Antarctic ice-free habitat' , Nature, vol. 547, no. 7661 , pp. 49-54 , doi: 10.1038/nature22996.

Full text not available from this repository.

Abstract

Antarctic terrestrial biodiversity occurs almost exclusively in ice-free areas that cover less than 1% of the continent. Climate change will alter the extent and configuration of ice-free areas, yet the distribution and severity of these effects remain unclear. Here we quantify the impact of twenty-first century climate change on ice-free areas under two Intergovernmental Panel on Climate Change (IPCC) climate forcing scenarios using temperature-index melt modelling. Under the strongest forcing scenario, ice-free areas could expand by over 17,000 km2 by the end of the century, close to a 25% increase. Most of this expansion will occur in the Antarctic Peninsula, where a threefold increase in ice-free area could drastically change the availability and connectivity of biodiversity habitat. Isolated ice-free areas will coalesce, and while the effects on biodiversity are uncertain, we hypothesize that they could eventually lead to increasing regional-scale biotic homogenization, the extinction of less-competitive species and the spread of invasive species.

Item Type: Article
Authors/Creators:Lee, JR and Raymond, B and Bracegirdle, TJ and Chades, I and Fuller, RA and Shaw, JD and Terauds, A
Keywords: climate change, ice melt, Antarctic, habitat
Journal or Publication Title: Nature
Publisher: Nature Publishing Group
ISSN: 0028-0836
DOI / ID Number: 10.1038/nature22996
Copyright Information:

© 2017 Macmillan Publishers

Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP