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Poleward bound: biological impacts of Southern Hemisphere glaciation
Fraser, C.I.; Nikula, R.; Ruzzante, D.; Waters, J. (2012). Poleward bound: biological impacts of Southern Hemisphere glaciation. Trends Ecol. Evol. 27(8): 462-471. dx.doi.org/10.1016/j.tree.2012.04.011
In: Trends in Ecology and Evolution. Elsevier Science: Amsterdam. ISSN 0169-5347, more
Peer reviewed article  

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  • Fraser, C.I.
  • Nikula, R.
  • Ruzzante, D.
  • Waters, J.

Abstract
    Postglacial recolonisation patterns are well documented for the Northern Hemisphere biota, but comparable processes in the Southern Hemisphere have only recently been examined. In the largely terrestrial Northern Hemisphere, recession of ice after the Last Glacial Maximum (LGM) allowed various taxa, including slow-moving terrestrial species, to migrate poleward. By contrast, the Southern Hemisphere polar region is completely ringed by ocean, and recolonisation of Antarctica and the sub-Antarctic islands has thus presented considerable challenges. Although a few highly dispersive marine species have been able to recolonise postglacially, most surviving high-latitude taxa appear to have persisted throughout glacial maxima in local refugia. These contrasting patterns highlight the importance of habitat continuity in facilitating biological range shifts in response to climate change.

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