'Time-sharing' Key to Evolutionary Mystery


	'Time-sharing' Key to Evolutionary Mystery

Djiezes

11-16-2007 2:18 PM

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time, evolution, darwin, species, pdf, literature, article, biology, science

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/2c03e5f1-0a97-4a8f-b6ba-8a74e6c321f8/1E01C66E-7BBB-4CBC-87B1-0A3AEF4DD7FA/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.physorg.com/news114192369.html" href="http://www.physorg.com/news114192369.html" style="font-size: 11px;">www.physorg.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news114192369.html"><H1>'Time-sharing' tropical birds key to evolutionary mystery</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news114192369.html"><DIV id="Preview"> 
Whereas most birds are sole proprietors of their nests, some tropical species “time share” together – a discovery that helps clear up a 150-year-old evolutionary mystery, says Queen’s University Biology professor Vicki Friesen.
</DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.physorg.com/news114192369.html"> 
The Queen’s-led international study confirms one of Charles Darwin’s more controversial theories – first put forward in 1859 and since disputed by many experts – that different species can arise, unhindered, in the same place. Others believe that a geographic barrier such as a mountain or a river is required to produce two separate species.</blockquote><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content9.clipmarks.com/images/clip-icon.gif" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.pnas.org/papbyrecent.shtml" href="http://www.pnas.org/papbyrecent.shtml" style="font-size: 11px;">www.pnas.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.pnas.org/papbyrecent.shtml"><DT><INPUT type="checkbox" id="hwStandardPapbyrecentGCA0700446104v1" value="0700446104v1" name="gca" />
V. L. Friesen, A. L. Smith, E. Gómez-Díaz, M. Bolton, R. W. Furness, J. González-Solís,  and L. R. Monteiro
</DT></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.pnas.org/papbyrecent.shtml"><DD>
                <STRONG><LABEL for="hwStandardPapbyrecentGCA0700446104v1">Sympatric speciation by allochrony in a seabird</LABEL></STRONG>
                <BR />PNAS 
published
                November 15, 2007, 
10.1073/pnas.0700446104
 (
	Evolution
)
<NOBR>
<A href="http://www.pnas.org/cgi/content/abstract/0700446104v1">[Abstract]</A>
<A href="http://www.pnas.org/cgi/reprint/0700446104v1">[PDF]</A>
<A href="http://www.pnas.org/cgi/content/full/0700446104/DC1">[Supporting Tables]</A>
</NOBR>
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