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<title><![CDATA[ants news from mongabay.com]]></title>
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<copyright>Copyright 2006 mongabay.com</copyright>
<pubDate>Sun, 15 Oct 2008 12:58:39 -0800</pubDate>
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<title><![CDATA[Leaf-cutter ants test theories about the Amazon's biodiversity]]></title>
<description><![CDATA[No one knows for certain how many insect species reside in the Amazon.  One oft-quoted estimate is 30 million, but the actual number could be significantly lower or higher than this.  Either way, biologists have long wondered why the richness of insect diversity in the Americas' tropical forests is exponentially higher than temperate forests.  Three popular hypotheses have emerged&#8212;the theory of refugia, the marine incursion hypothesis, and the riverine barrier hypothesis.  To test these theories a group of scientists, headed by Dr. Scott Solomon, studied three species of leaf-cutter ant species from the Amazon.]]></description>
<link>http://news.mongabay.com/2008/0723-hance_biodiversity.html</link>
<pubDate>Wed, 23 Jul 2008 05:00:00 GMT</pubDate>
<source url="http://www.mongabay.com/">Mongabay.com</source>
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