Detecting glacial refugia in the Southern Ocean ...
© 2020 The Authors. Ecography published by John Wiley & Sons Ltd on behalf of Nordic Society Oikos Throughout the Quaternary, the continental-based Antarctic ice sheets expanded and contracted repeatedly. Evidence suggests that during glacial maxima, grounded ice eliminated most benthic (bottom-...
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| Format: | Text |
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La Trobe
2021
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| Online Access: | https://dx.doi.org/10.26181/602095f0e8f01 https://opal.latrobe.edu.au/articles/journal_contribution/Detecting_glacial_refugia_in_the_Southern_Ocean/13728310/1 |
| Summary: | © 2020 The Authors. Ecography published by John Wiley & Sons Ltd on behalf of Nordic Society Oikos Throughout the Quaternary, the continental-based Antarctic ice sheets expanded and contracted repeatedly. Evidence suggests that during glacial maxima, grounded ice eliminated most benthic (bottom-dwelling) fauna across the Antarctic continental shelf. However, paleontological and molecular evidence indicates most extant Antarctica benthic taxa have persisted in situ throughout the Quaternary. Where and how the Antarctic benthic fauna survived throughout repeated glacial maxima remain mostly hypothesised. If understood, this would provide valuable insights into the ecology and evolution of Southern Ocean biota over geological timescales. Here we synthesised and appraised recent studies and presented an approach to demonstrate how genetic data can be effective in identifying where and how Antarctic benthic fauna survived glacial periods. We first examined the geological and ecological evidence for how ... |
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