Dating Antarctic ice sheet collapse: Proposing a molecular genetic approach
作者： Jan M. Strugnell , Joel B. Pedro , Nerida G. Wilson
DOI: 10.1016/J.QUASCIREV.2017.11.014
关键词:
摘要: Abstract Sea levels at the end of this century are projected to be 0.26–0.98 m higher than today. The upper range, and even estimates, cannot ruled out because major uncertainties in dynamic response polar ice sheets a warming climate. Here, we propose an ecological genetics approach that can provide insight into past stability configuration West Antarctic Ice Sheet (WAIS). We independent testing hypothesis trans-Antarctic seaway occurred last interglacial. Examination genomic signatures bottom-dwelling marine species using latest methods window integrity WAIS more 100,000 years ago. Periods connectivity facilitated by seaways could revealed dating coalescent events recorded DNA. These allow alternative scenarios tested against fit data. Ideal candidate taxa for work would need possess circumpolar distribution, benthic habitat, some level genetic structure indicated phylogeographical investigation. purpose perspective piece is set method help resolve when Shelf collapsed.
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