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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Author</th> <th class="thCornerR">Message</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>cheapbag214s</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/Aeolus/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Posted: Wed 16:30, 30 Oct 2013<span class="gen"> </span> Post subject: U.S. and Canadian researchers say.Ben Dantzer</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">In competition for resources, stress key to survival of the fittest <br />EAST LANSING, Mich., April 21 () -- If the woods get crowded, mother squirrels improve their offspring's odds of survival by ramping up offspring growth, U.S. and Canadian researchers say.Ben Dantzer, formerly with Michigan State University's zoology department and now a postdoctoral researcher at the University of Cambridge in England,[url=http://www.ludotype.com/]supra high tops[/url], said the study showed for the first time how females' use social cues to correctly prepare their offspring for life outside the nest.The study, published in the journal Science,[url=http://www.wa7788.com/]Louboutin Men[/url], confirmed red squirrel mothers boosted stress hormone production during pregnancy,[url=http://www.wa7788.com/]Louboutin UK[/url], which increased the size and the chances of survival of their pups."Natural selection favors faster-growing offspring, and female red squirrels react accordingly to increase their pups' chances of survival," Dantzer said in a statement. "Surprisingly, squirrels could produce these faster growing offspring even though they didn't have access to additional food resources."The research team based much of its study on the Kluane Red Squirrel Project, a 22-year-long study on North American red squirrels living in the Yukon led by researchers from the University of Alberta, University of Guelph and McGill University in Montreal. In the field, researchers used recordings of territorial vocalizations, or rattles,[url=http://www.ludotype.com/]supra skytop[/url], to create the illusion of a big population of squirrels. Females reacted to the increased commotion by producing more stress hormones while pregnant and their pups grew faster.</span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/Aeolus/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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