DOI: 10.1016/j.quascirev.2017.11.014
Scopus记录号: 2-s2.0-85034434729
论文题名: Dating Antarctic ice sheet collapse: Proposing a molecular genetic approach
作者: Strugnell J.M. ; Pedro J.B. ; Wilson N.G.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 179 起始页码: 153
结束页码: 157
语种: 英语
英文关键词: Antarctic
; Eemian
; Genetic
; Interglacial
; Marine ice sheet instability
; West Antarctic Ice Sheet
Scopus关键词: Chromosomes
; Ecology
; Genes
; Glaciers
; Sea level
; Uncertainty analysis
; Antarctic
; Eemian
; Genetic
; Ice sheet
; Interglacial
; West antarctic ice sheets
; Ice
; DNA
; Eemian
; genetic structure
; genomics
; hypothesis testing
; ice sheet
; interglacial
; phylogeography
; uncertainty analysis
; warming
; Antarctic Ice Sheet
; Antarctica
; West Antarctic Ice Sheet
; West Antarctica
英文摘要: Sea levels at the end of this century are projected to be 0.26–0.98 m higher than today. The upper end of this range, and even higher estimates, cannot be ruled out because of major uncertainties in the dynamic response of polar ice sheets to a warming climate. Here, we propose an ecological genetics approach that can provide insight into the past stability and configuration of the West Antarctic Ice Sheet (WAIS). We propose independent testing of the hypothesis that a trans-Antarctic seaway occurred at the last interglacial. Examination of the genomic signatures of bottom-dwelling marine species using the latest methods can provide an independent window into the integrity of the WAIS more than 100,000 years ago. Periods of connectivity facilitated by trans-Antarctic seaways could be revealed by dating coalescent events recorded in DNA. These methods allow alternative scenarios to be tested against a fit to genomic data. Ideal candidate taxa for this work would need to possess a circumpolar distribution, a benthic habitat, and some level of genetic structure indicated by phylogeographical investigation. The purpose of this perspective piece is to set out an ecological genetics method to help resolve when the West Antarctic Ice Shelf last collapsed. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112345
Appears in Collections: 气候减缓与适应
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作者单位: Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Townsville, Qld 4810, Australia; Department of Ecology, Environment & Evolution, La Trobe University, Melbourne, Vic 3086, Australia; Center for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Copenhagen, 2100, Denmark; Molecular Systematics Unit, Western Australian Museum, Welshpool, WA 6106, Australia; Animal Biology, University of Western Australia, Crawley, WA 6009, Australia
Recommended Citation:
Strugnell J.M.,Pedro J.B.,Wilson N.G.. Dating Antarctic ice sheet collapse: Proposing a molecular genetic approach[J]. Quaternary Science Reviews,2018-01-01,179