A Natural Selection

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A Natural Selection

机译：自然选择

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As Charles Darwin showed so convincingly, the fauna of islands provide excellent subjects for investigating evolution. The creature on the left, Anolis sagrei, is a case in point. Jonathan Losos and colleagues studied this lizard in experimental work, carried out in 2003, that involved the introduction of a predator of this species onto six islands in the Bahamas. Six other islands acted as controls. Losos and colleagues' aim was to test the hypothesis that, when organisms experience new environments, behavioural change prevents the operation of natural selection (they concluded that in this case it did not).

机译：正如查尔斯·达尔文（Charles Darwin）令人信服地表明的那样，岛屿的动物群为研究进化提供了极好的主题。左边的动物是Anolis sagrei，就是一个很好的例子。乔纳森·洛索斯（Jonathan Losos）及其同事在2003年进行的实验工作中对这种蜥蜴进行了研究，该实验涉及将该物种的捕食者引入巴哈马的六个岛屿。其他六个岛屿则充当控制者。 Losos和他的同事的目的是检验以下假设：当生物体遇到新的环境时，行为改变会阻止自然选择的操作（他们得出的结论是，在这种情况下并没有这样做）。

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《Nature》 |2009年第7225期|p.40|共1页
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Department of Economics, University of Erfurt, Nordhaeuser Strasse 63, D-99089 Erfurt, Germany;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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正文语种 eng
中图分类自然科学总论;
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A Natural Selection

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