How isolated is Antarctica?

被引:200
作者
Clarke, A [1 ]
Barnes, DKA [1 ]
Hodgson, DA [1 ]
机构
[1] British Antarctic Survey, NERC, Cambridge CB3 0ET, England
关键词
D O I
10.1016/j.tree.2004.10.004
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The traditional view of Antarctica and the surrounding Southern Ocean as an isolated system is now being challenged by the recent discovery at the Antarctic Peninsula of adult spider crabs Hyas areneus from the North Atlantic and of larvae of subpolar marine invertebrates. These observations question whether the well described biogeographical similarities between the benthic fauna of the Antarctic Peninsula and the Magellan region of South America result from history (the two regions were once contiguous), or from a previously unrecognized low level of faunal exchange. Such exchange might be influenced by regional climate change, and also exacerbated by changes in human impact.
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页码:1 / 3
页数:3
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