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Climate change drives expansion of Antarctic ice-free habitat

Lee, Jasmine R ; Raymond, Ben ; Bracegirdle, Thomas J ; Chadès, Iadine ; Fuller, Richard A ; Shaw, Justine D ; Terauds, Aleks

Nature (London), 2017-07, Vol.547 (7661), p.49-54 [Periódico revisado por pares]

England: Nature Publishing Group

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Título:
Climate change drives expansion of Antarctic ice-free habitat
Autor: Lee, Jasmine R ; Raymond, Ben ; Bracegirdle, Thomas J ; Chadès, Iadine ; Fuller, Richard A ; Shaw, Justine D ; Terauds, Aleks
Assuntos: Animals ; Antarctic ice ; Antarctic Regions ; Biodiversity ; Biological diversity ; Climate ; Climate change ; Climate Change - history ; Climate Change - statistics & numerical data ; Climate models ; Climatic changes ; Coalescing ; Conservation of Natural Resources - methods ; Conservation of Natural Resources - statistics & numerical data ; Conservation of Natural Resources - trends ; Ecology - trends ; Endangered & extinct species ; Environmental aspects ; Extinction ; Habitats ; History, 21st Century ; Ice ; Ice Cover ; Intergovernmental Panel on Climate Change ; Introduced species ; Invasive species ; Polar environments ; Precipitation ; Species extinction ; Temperature ; Temperature effects ; Terrestrial environments
É parte de: Nature (London), 2017-07, Vol.547 (7661), p.49-54
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: 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 km 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.
Editor: England: Nature Publishing Group
Idioma: Inglês

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Climate change drives expansion of Antarctic ice-free habitat

Lee, Jasmine R ; Raymond, Ben ; Bracegirdle, Thomas J ; Chadès, Iadine ; Fuller, Richard A ; Shaw, Justine D ; Terauds, Aleks

England: Nature Publishing Group

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